ffprobe.c 133 KB
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/*
 * Copyright (c) 2007-2010 Stefano Sabatini
 *
 * This file is part of FFmpeg.
 *
 * FFmpeg is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * FFmpeg is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with FFmpeg; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

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/**
 * @file
 * simple media prober based on the FFmpeg libraries
 */

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#include "config.h"
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#include "libavutil/ffversion.h"
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#include <string.h>

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#include "libavformat/avformat.h"
#include "libavcodec/avcodec.h"
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#include "libavutil/avassert.h"
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#include "libavutil/avstring.h"
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#include "libavutil/bprint.h"
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#include "libavutil/display.h"
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#include "libavutil/hash.h"
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#include "libavutil/mastering_display_metadata.h"
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#include "libavutil/opt.h"
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#include "libavutil/pixdesc.h"
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#include "libavutil/spherical.h"
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#include "libavutil/stereo3d.h"
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#include "libavutil/dict.h"
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#include "libavutil/intreadwrite.h"
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#include "libavutil/libm.h"
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#include "libavutil/parseutils.h"
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#include "libavutil/timecode.h"
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#include "libavutil/timestamp.h"
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#include "libavdevice/avdevice.h"
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#include "libswscale/swscale.h"
#include "libswresample/swresample.h"
#include "libpostproc/postprocess.h"
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#include "cmdutils.h"

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#include "libavutil/thread.h"

#if !HAVE_THREADS
#  ifdef pthread_mutex_lock
#    undef pthread_mutex_lock
#  endif
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#  define pthread_mutex_lock(a) do{}while(0)
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#  ifdef pthread_mutex_unlock
#    undef pthread_mutex_unlock
#  endif
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#  define pthread_mutex_unlock(a) do{}while(0)
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#endif

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typedef struct InputStream {
    AVStream *st;
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    AVCodecContext *dec_ctx;
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} InputStream;

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typedef struct InputFile {
    AVFormatContext *fmt_ctx;
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    InputStream *streams;
    int       nb_streams;
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} InputFile;

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const char program_name[] = "ffprobe";
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const int program_birth_year = 2007;

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static int do_bitexact = 0;
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static int do_count_frames = 0;
static int do_count_packets = 0;
static int do_read_frames  = 0;
static int do_read_packets = 0;
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static int do_show_chapters = 0;
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static int do_show_error   = 0;
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static int do_show_format  = 0;
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static int do_show_frames  = 0;
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static int do_show_packets = 0;
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static int do_show_programs = 0;
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static int do_show_streams = 0;
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static int do_show_stream_disposition = 0;
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static int do_show_data    = 0;
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static int do_show_program_version  = 0;
static int do_show_library_versions = 0;
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static int do_show_pixel_formats = 0;
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static int do_show_pixel_format_flags = 0;
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static int do_show_pixel_format_components = 0;
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static int do_show_log = 0;
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static int do_show_chapter_tags = 0;
static int do_show_format_tags = 0;
static int do_show_frame_tags = 0;
static int do_show_program_tags = 0;
static int do_show_stream_tags = 0;
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static int do_show_packet_tags = 0;
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static int show_value_unit              = 0;
static int use_value_prefix             = 0;
static int use_byte_value_binary_prefix = 0;
static int use_value_sexagesimal_format = 0;
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static int show_private_data            = 1;
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static char *print_format;
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static char *stream_specifier;
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static char *show_data_hash;
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typedef struct ReadInterval {
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    int id;             ///< identifier
    int64_t start, end; ///< start, end in second/AV_TIME_BASE units
    int has_start, has_end;
    int start_is_offset, end_is_offset;
    int duration_frames;
} ReadInterval;

static ReadInterval *read_intervals;
static int read_intervals_nb = 0;

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static int find_stream_info  = 1;

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/* section structure definition */

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#define SECTION_MAX_NB_CHILDREN 10

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struct section {
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    int id;             ///< unique id identifying a section
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    const char *name;

#define SECTION_FLAG_IS_WRAPPER      1 ///< the section only contains other sections, but has no data at its own level
#define SECTION_FLAG_IS_ARRAY        2 ///< the section contains an array of elements of the same type
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#define SECTION_FLAG_HAS_VARIABLE_FIELDS 4 ///< the section may contain a variable number of fields with variable keys.
                                           ///  For these sections the element_name field is mandatory.
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    int flags;
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    int children_ids[SECTION_MAX_NB_CHILDREN+1]; ///< list of children section IDS, terminated by -1
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    const char *element_name; ///< name of the contained element, if provided
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    const char *unique_name;  ///< unique section name, in case the name is ambiguous
    AVDictionary *entries_to_show;
    int show_all_entries;
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};

typedef enum {
    SECTION_ID_NONE = -1,
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    SECTION_ID_CHAPTER,
    SECTION_ID_CHAPTER_TAGS,
    SECTION_ID_CHAPTERS,
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    SECTION_ID_ERROR,
    SECTION_ID_FORMAT,
    SECTION_ID_FORMAT_TAGS,
    SECTION_ID_FRAME,
    SECTION_ID_FRAMES,
    SECTION_ID_FRAME_TAGS,
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    SECTION_ID_FRAME_SIDE_DATA_LIST,
    SECTION_ID_FRAME_SIDE_DATA,
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    SECTION_ID_FRAME_LOG,
    SECTION_ID_FRAME_LOGS,
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    SECTION_ID_LIBRARY_VERSION,
    SECTION_ID_LIBRARY_VERSIONS,
    SECTION_ID_PACKET,
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    SECTION_ID_PACKET_TAGS,
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    SECTION_ID_PACKETS,
    SECTION_ID_PACKETS_AND_FRAMES,
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    SECTION_ID_PACKET_SIDE_DATA_LIST,
    SECTION_ID_PACKET_SIDE_DATA,
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    SECTION_ID_PIXEL_FORMAT,
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    SECTION_ID_PIXEL_FORMAT_FLAGS,
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    SECTION_ID_PIXEL_FORMAT_COMPONENT,
    SECTION_ID_PIXEL_FORMAT_COMPONENTS,
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    SECTION_ID_PIXEL_FORMATS,
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    SECTION_ID_PROGRAM_STREAM_DISPOSITION,
    SECTION_ID_PROGRAM_STREAM_TAGS,
    SECTION_ID_PROGRAM,
    SECTION_ID_PROGRAM_STREAMS,
    SECTION_ID_PROGRAM_STREAM,
    SECTION_ID_PROGRAM_TAGS,
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    SECTION_ID_PROGRAM_VERSION,
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    SECTION_ID_PROGRAMS,
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    SECTION_ID_ROOT,
    SECTION_ID_STREAM,
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    SECTION_ID_STREAM_DISPOSITION,
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    SECTION_ID_STREAMS,
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    SECTION_ID_STREAM_TAGS,
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    SECTION_ID_STREAM_SIDE_DATA_LIST,
    SECTION_ID_STREAM_SIDE_DATA,
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    SECTION_ID_SUBTITLE,
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} SectionID;

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static struct section sections[] = {
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    [SECTION_ID_CHAPTERS] =           { SECTION_ID_CHAPTERS, "chapters", SECTION_FLAG_IS_ARRAY, { SECTION_ID_CHAPTER, -1 } },
    [SECTION_ID_CHAPTER] =            { SECTION_ID_CHAPTER, "chapter", 0, { SECTION_ID_CHAPTER_TAGS, -1 } },
    [SECTION_ID_CHAPTER_TAGS] =       { SECTION_ID_CHAPTER_TAGS, "tags", SECTION_FLAG_HAS_VARIABLE_FIELDS, { -1 }, .element_name = "tag", .unique_name = "chapter_tags" },
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    [SECTION_ID_ERROR] =              { SECTION_ID_ERROR, "error", 0, { -1 } },
    [SECTION_ID_FORMAT] =             { SECTION_ID_FORMAT, "format", 0, { SECTION_ID_FORMAT_TAGS, -1 } },
    [SECTION_ID_FORMAT_TAGS] =        { SECTION_ID_FORMAT_TAGS, "tags", SECTION_FLAG_HAS_VARIABLE_FIELDS, { -1 }, .element_name = "tag", .unique_name = "format_tags" },
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    [SECTION_ID_FRAMES] =             { SECTION_ID_FRAMES, "frames", SECTION_FLAG_IS_ARRAY, { SECTION_ID_FRAME, SECTION_ID_SUBTITLE, -1 } },
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    [SECTION_ID_FRAME] =              { SECTION_ID_FRAME, "frame", 0, { SECTION_ID_FRAME_TAGS, SECTION_ID_FRAME_SIDE_DATA_LIST, SECTION_ID_FRAME_LOGS, -1 } },
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    [SECTION_ID_FRAME_TAGS] =         { SECTION_ID_FRAME_TAGS, "tags", SECTION_FLAG_HAS_VARIABLE_FIELDS, { -1 }, .element_name = "tag", .unique_name = "frame_tags" },
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    [SECTION_ID_FRAME_SIDE_DATA_LIST] ={ SECTION_ID_FRAME_SIDE_DATA_LIST, "side_data_list", SECTION_FLAG_IS_ARRAY, { SECTION_ID_FRAME_SIDE_DATA, -1 }, .element_name = "side_data", .unique_name = "frame_side_data_list" },
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    [SECTION_ID_FRAME_SIDE_DATA] =     { SECTION_ID_FRAME_SIDE_DATA, "side_data", 0, { -1 } },
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    [SECTION_ID_FRAME_LOGS] =         { SECTION_ID_FRAME_LOGS, "logs", SECTION_FLAG_IS_ARRAY, { SECTION_ID_FRAME_LOG, -1 } },
    [SECTION_ID_FRAME_LOG] =          { SECTION_ID_FRAME_LOG, "log", 0, { -1 },  },
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    [SECTION_ID_LIBRARY_VERSIONS] =   { SECTION_ID_LIBRARY_VERSIONS, "library_versions", SECTION_FLAG_IS_ARRAY, { SECTION_ID_LIBRARY_VERSION, -1 } },
    [SECTION_ID_LIBRARY_VERSION] =    { SECTION_ID_LIBRARY_VERSION, "library_version", 0, { -1 } },
    [SECTION_ID_PACKETS] =            { SECTION_ID_PACKETS, "packets", SECTION_FLAG_IS_ARRAY, { SECTION_ID_PACKET, -1} },
    [SECTION_ID_PACKETS_AND_FRAMES] = { SECTION_ID_PACKETS_AND_FRAMES, "packets_and_frames", SECTION_FLAG_IS_ARRAY, { SECTION_ID_PACKET, -1} },
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    [SECTION_ID_PACKET] =             { SECTION_ID_PACKET, "packet", 0, { SECTION_ID_PACKET_TAGS, SECTION_ID_PACKET_SIDE_DATA_LIST, -1 } },
    [SECTION_ID_PACKET_TAGS] =        { SECTION_ID_PACKET_TAGS, "tags", SECTION_FLAG_HAS_VARIABLE_FIELDS, { -1 }, .element_name = "tag", .unique_name = "packet_tags" },
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    [SECTION_ID_PACKET_SIDE_DATA_LIST] ={ SECTION_ID_PACKET_SIDE_DATA_LIST, "side_data_list", SECTION_FLAG_IS_ARRAY, { SECTION_ID_PACKET_SIDE_DATA, -1 }, .element_name = "side_data", .unique_name = "packet_side_data_list" },
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    [SECTION_ID_PACKET_SIDE_DATA] =     { SECTION_ID_PACKET_SIDE_DATA, "side_data", 0, { -1 } },
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    [SECTION_ID_PIXEL_FORMATS] =      { SECTION_ID_PIXEL_FORMATS, "pixel_formats", SECTION_FLAG_IS_ARRAY, { SECTION_ID_PIXEL_FORMAT, -1 } },
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    [SECTION_ID_PIXEL_FORMAT] =       { SECTION_ID_PIXEL_FORMAT, "pixel_format", 0, { SECTION_ID_PIXEL_FORMAT_FLAGS, SECTION_ID_PIXEL_FORMAT_COMPONENTS, -1 } },
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    [SECTION_ID_PIXEL_FORMAT_FLAGS] = { SECTION_ID_PIXEL_FORMAT_FLAGS, "flags", 0, { -1 }, .unique_name = "pixel_format_flags" },
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    [SECTION_ID_PIXEL_FORMAT_COMPONENTS] = { SECTION_ID_PIXEL_FORMAT_COMPONENTS, "components", SECTION_FLAG_IS_ARRAY, {SECTION_ID_PIXEL_FORMAT_COMPONENT, -1 }, .unique_name = "pixel_format_components" },
    [SECTION_ID_PIXEL_FORMAT_COMPONENT]  = { SECTION_ID_PIXEL_FORMAT_COMPONENT, "component", 0, { -1 } },
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    [SECTION_ID_PROGRAM_STREAM_DISPOSITION] = { SECTION_ID_PROGRAM_STREAM_DISPOSITION, "disposition", 0, { -1 }, .unique_name = "program_stream_disposition" },
    [SECTION_ID_PROGRAM_STREAM_TAGS] =        { SECTION_ID_PROGRAM_STREAM_TAGS, "tags", SECTION_FLAG_HAS_VARIABLE_FIELDS, { -1 }, .element_name = "tag", .unique_name = "program_stream_tags" },
    [SECTION_ID_PROGRAM] =                    { SECTION_ID_PROGRAM, "program", 0, { SECTION_ID_PROGRAM_TAGS, SECTION_ID_PROGRAM_STREAMS, -1 } },
    [SECTION_ID_PROGRAM_STREAMS] =            { SECTION_ID_PROGRAM_STREAMS, "streams", SECTION_FLAG_IS_ARRAY, { SECTION_ID_PROGRAM_STREAM, -1 }, .unique_name = "program_streams" },
    [SECTION_ID_PROGRAM_STREAM] =             { SECTION_ID_PROGRAM_STREAM, "stream", 0, { SECTION_ID_PROGRAM_STREAM_DISPOSITION, SECTION_ID_PROGRAM_STREAM_TAGS, -1 }, .unique_name = "program_stream" },
    [SECTION_ID_PROGRAM_TAGS] =               { SECTION_ID_PROGRAM_TAGS, "tags", SECTION_FLAG_HAS_VARIABLE_FIELDS, { -1 }, .element_name = "tag", .unique_name = "program_tags" },
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    [SECTION_ID_PROGRAM_VERSION] =    { SECTION_ID_PROGRAM_VERSION, "program_version", 0, { -1 } },
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    [SECTION_ID_PROGRAMS] =                   { SECTION_ID_PROGRAMS, "programs", SECTION_FLAG_IS_ARRAY, { SECTION_ID_PROGRAM, -1 } },
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    [SECTION_ID_ROOT] =               { SECTION_ID_ROOT, "root", SECTION_FLAG_IS_WRAPPER,
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                                        { SECTION_ID_CHAPTERS, SECTION_ID_FORMAT, SECTION_ID_FRAMES, SECTION_ID_PROGRAMS, SECTION_ID_STREAMS,
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                                          SECTION_ID_PACKETS, SECTION_ID_ERROR, SECTION_ID_PROGRAM_VERSION, SECTION_ID_LIBRARY_VERSIONS,
                                          SECTION_ID_PIXEL_FORMATS, -1} },
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    [SECTION_ID_STREAMS] =            { SECTION_ID_STREAMS, "streams", SECTION_FLAG_IS_ARRAY, { SECTION_ID_STREAM, -1 } },
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    [SECTION_ID_STREAM] =             { SECTION_ID_STREAM, "stream", 0, { SECTION_ID_STREAM_DISPOSITION, SECTION_ID_STREAM_TAGS, SECTION_ID_STREAM_SIDE_DATA_LIST, -1 } },
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    [SECTION_ID_STREAM_DISPOSITION] = { SECTION_ID_STREAM_DISPOSITION, "disposition", 0, { -1 }, .unique_name = "stream_disposition" },
    [SECTION_ID_STREAM_TAGS] =        { SECTION_ID_STREAM_TAGS, "tags", SECTION_FLAG_HAS_VARIABLE_FIELDS, { -1 }, .element_name = "tag", .unique_name = "stream_tags" },
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    [SECTION_ID_STREAM_SIDE_DATA_LIST] ={ SECTION_ID_STREAM_SIDE_DATA_LIST, "side_data_list", SECTION_FLAG_IS_ARRAY, { SECTION_ID_STREAM_SIDE_DATA, -1 }, .element_name = "side_data", .unique_name = "stream_side_data_list" },
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    [SECTION_ID_STREAM_SIDE_DATA] =     { SECTION_ID_STREAM_SIDE_DATA, "side_data", 0, { -1 } },
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    [SECTION_ID_SUBTITLE] =           { SECTION_ID_SUBTITLE, "subtitle", 0, { -1 } },
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};

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static const OptionDef *options;
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/* FFprobe context */
static const char *input_filename;
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static AVInputFormat *iformat = NULL;
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static struct AVHashContext *hash;

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static const struct {
    double bin_val;
    double dec_val;
    const char *bin_str;
    const char *dec_str;
} si_prefixes[] = {
    { 1.0, 1.0, "", "" },
    { 1.024e3, 1e3, "Ki", "K" },
    { 1.048576e6, 1e6, "Mi", "M" },
    { 1.073741824e9, 1e9, "Gi", "G" },
    { 1.099511627776e12, 1e12, "Ti", "T" },
    { 1.125899906842624e15, 1e15, "Pi", "P" },
};
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static const char unit_second_str[]         = "s"    ;
static const char unit_hertz_str[]          = "Hz"   ;
static const char unit_byte_str[]           = "byte" ;
static const char unit_bit_per_second_str[] = "bit/s";
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static int nb_streams;
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static uint64_t *nb_streams_packets;
static uint64_t *nb_streams_frames;
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static int *selected_streams;
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#if HAVE_THREADS
pthread_mutex_t log_mutex;
#endif
typedef struct LogBuffer {
    char *context_name;
    int log_level;
    char *log_message;
    AVClassCategory category;
    char *parent_name;
    AVClassCategory parent_category;
}LogBuffer;

static LogBuffer *log_buffer;
static int log_buffer_size;

static void log_callback(void *ptr, int level, const char *fmt, va_list vl)
{
    AVClass* avc = ptr ? *(AVClass **) ptr : NULL;
    va_list vl2;
    char line[1024];
    static int print_prefix = 1;
    void *new_log_buffer;

    va_copy(vl2, vl);
    av_log_default_callback(ptr, level, fmt, vl);
    av_log_format_line(ptr, level, fmt, vl2, line, sizeof(line), &print_prefix);
    va_end(vl2);

#if HAVE_THREADS
    pthread_mutex_lock(&log_mutex);

    new_log_buffer = av_realloc_array(log_buffer, log_buffer_size + 1, sizeof(*log_buffer));
    if (new_log_buffer) {
        char *msg;
        int i;

        log_buffer = new_log_buffer;
        memset(&log_buffer[log_buffer_size], 0, sizeof(log_buffer[log_buffer_size]));
        log_buffer[log_buffer_size].context_name= avc ? av_strdup(avc->item_name(ptr)) : NULL;
        if (avc) {
            if (avc->get_category) log_buffer[log_buffer_size].category = avc->get_category(ptr);
            else                   log_buffer[log_buffer_size].category = avc->category;
        }
        log_buffer[log_buffer_size].log_level   = level;
        msg = log_buffer[log_buffer_size].log_message = av_strdup(line);
        for (i=strlen(msg) - 1; i>=0 && msg[i] == '\n'; i--) {
            msg[i] = 0;
        }
        if (avc && avc->parent_log_context_offset) {
            AVClass** parent = *(AVClass ***) (((uint8_t *) ptr) +
                                   avc->parent_log_context_offset);
            if (parent && *parent) {
                log_buffer[log_buffer_size].parent_name = av_strdup((*parent)->item_name(parent));
                log_buffer[log_buffer_size].parent_category =
                    (*parent)->get_category ? (*parent)->get_category(parent) :(*parent)->category;
            }
        }
        log_buffer_size ++;
    }

    pthread_mutex_unlock(&log_mutex);
#endif
}

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static void ffprobe_cleanup(int ret)
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{
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    int i;
    for (i = 0; i < FF_ARRAY_ELEMS(sections); i++)
        av_dict_free(&(sections[i].entries_to_show));
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#if HAVE_THREADS
    pthread_mutex_destroy(&log_mutex);
#endif
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}

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struct unit_value {
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    union { double d; long long int i; } val;
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    const char *unit;
};

static char *value_string(char *buf, int buf_size, struct unit_value uv)
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{
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    double vald;
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    long long int vali;
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    int show_float = 0;

    if (uv.unit == unit_second_str) {
        vald = uv.val.d;
        show_float = 1;
    } else {
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        vald = vali = uv.val.i;
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    }

    if (uv.unit == unit_second_str && use_value_sexagesimal_format) {
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        double secs;
        int hours, mins;
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        secs  = vald;
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        mins  = (int)secs / 60;
        secs  = secs - mins * 60;
        hours = mins / 60;
        mins %= 60;
        snprintf(buf, buf_size, "%d:%02d:%09.6f", hours, mins, secs);
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    } else {
        const char *prefix_string = "";
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        if (use_value_prefix && vald > 1) {
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            long long int index;

            if (uv.unit == unit_byte_str && use_byte_value_binary_prefix) {
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                index = (long long int) (log2(vald)) / 10;
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                index = av_clip(index, 0, FF_ARRAY_ELEMS(si_prefixes) - 1);
                vald /= si_prefixes[index].bin_val;
                prefix_string = si_prefixes[index].bin_str;
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            } else {
                index = (long long int) (log10(vald)) / 3;
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                index = av_clip(index, 0, FF_ARRAY_ELEMS(si_prefixes) - 1);
                vald /= si_prefixes[index].dec_val;
                prefix_string = si_prefixes[index].dec_str;
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            }
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            vali = vald;
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        }
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        if (show_float || (use_value_prefix && vald != (long long int)vald))
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            snprintf(buf, buf_size, "%f", vald);
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        else
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            snprintf(buf, buf_size, "%lld", vali);
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        av_strlcatf(buf, buf_size, "%s%s%s", *prefix_string || show_value_unit ? " " : "",
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                 prefix_string, show_value_unit ? uv.unit : "");
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    }

    return buf;
}

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/* WRITERS API */
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typedef struct WriterContext WriterContext;
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#define WRITER_FLAG_DISPLAY_OPTIONAL_FIELDS 1
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#define WRITER_FLAG_PUT_PACKETS_AND_FRAMES_IN_SAME_CHAPTER 2
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typedef enum {
    WRITER_STRING_VALIDATION_FAIL,
    WRITER_STRING_VALIDATION_REPLACE,
    WRITER_STRING_VALIDATION_IGNORE,
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    WRITER_STRING_VALIDATION_NB
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} StringValidation;

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typedef struct Writer {
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    const AVClass *priv_class;      ///< private class of the writer, if any
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    int priv_size;                  ///< private size for the writer context
    const char *name;
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    int  (*init)  (WriterContext *wctx);
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    void (*uninit)(WriterContext *wctx);

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    void (*print_section_header)(WriterContext *wctx);
    void (*print_section_footer)(WriterContext *wctx);
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    void (*print_integer)       (WriterContext *wctx, const char *, long long int);
439
    void (*print_rational)      (WriterContext *wctx, AVRational *q, char *sep);
440
    void (*print_string)        (WriterContext *wctx, const char *, const char *);
441
    int flags;                  ///< a combination or WRITER_FLAG_*
442 443
} Writer;

444 445
#define SECTION_MAX_NB_LEVELS 10

446 447 448 449 450
struct WriterContext {
    const AVClass *class;           ///< class of the writer
    const Writer *writer;           ///< the Writer of which this is an instance
    char *name;                     ///< name of this writer instance
    void *priv;                     ///< private data for use by the filter
451 452 453 454 455 456 457 458 459 460 461

    const struct section *sections; ///< array containing all sections
    int nb_sections;                ///< number of sections

    int level;                      ///< current level, starting from 0

    /** number of the item printed in the given section, starting from 0 */
    unsigned int nb_item[SECTION_MAX_NB_LEVELS];

    /** section per each level */
    const struct section *section[SECTION_MAX_NB_LEVELS];
462 463
    AVBPrint section_pbuf[SECTION_MAX_NB_LEVELS]; ///< generic print buffer dedicated to each section,
                                                  ///  used by various writers
464

465 466 467
    unsigned int nb_section_packet; ///< number of the packet section in case we are in "packets_and_frames" section
    unsigned int nb_section_frame;  ///< number of the frame  section in case we are in "packets_and_frames" section
    unsigned int nb_section_packet_frame; ///< nb_section_packet or nb_section_frame according if is_packets_and_frames
468

469
    int string_validation;
470 471
    char *string_validation_replacement;
    unsigned int string_validation_utf8_flags;
472
};
473

474 475 476 477 478 479
static const char *writer_get_name(void *p)
{
    WriterContext *wctx = p;
    return wctx->writer->name;
}

480 481
#define OFFSET(x) offsetof(WriterContext, x)

482 483 484 485 486 487 488 489 490
static const AVOption writer_options[] = {
    { "string_validation", "set string validation mode",
      OFFSET(string_validation), AV_OPT_TYPE_INT, {.i64=WRITER_STRING_VALIDATION_REPLACE}, 0, WRITER_STRING_VALIDATION_NB-1, .unit = "sv" },
    { "sv", "set string validation mode",
      OFFSET(string_validation), AV_OPT_TYPE_INT, {.i64=WRITER_STRING_VALIDATION_REPLACE}, 0, WRITER_STRING_VALIDATION_NB-1, .unit = "sv" },
    { "ignore",  NULL, 0, AV_OPT_TYPE_CONST, {.i64 = WRITER_STRING_VALIDATION_IGNORE},  .unit = "sv" },
    { "replace", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = WRITER_STRING_VALIDATION_REPLACE}, .unit = "sv" },
    { "fail",    NULL, 0, AV_OPT_TYPE_CONST, {.i64 = WRITER_STRING_VALIDATION_FAIL},    .unit = "sv" },
    { "string_validation_replacement", "set string validation replacement string", OFFSET(string_validation_replacement), AV_OPT_TYPE_STRING, {.str=""}},
491
    { "svr", "set string validation replacement string", OFFSET(string_validation_replacement), AV_OPT_TYPE_STRING, {.str="\xEF\xBF\xBD"}},
492
    { NULL }
493 494
};

495 496 497 498 499 500 501 502
static void *writer_child_next(void *obj, void *prev)
{
    WriterContext *ctx = obj;
    if (!prev && ctx->writer && ctx->writer->priv_class && ctx->priv)
        return ctx->priv;
    return NULL;
}

503
static const AVClass writer_class = {
504 505 506 507
    .class_name = "Writer",
    .item_name  = writer_get_name,
    .option     = writer_options,
    .version    = LIBAVUTIL_VERSION_INT,
508
    .child_next = writer_child_next,
509 510
};

511
static void writer_close(WriterContext **wctx)
512
{
513 514
    int i;

515 516
    if (!*wctx)
        return;
517

518 519
    if ((*wctx)->writer->uninit)
        (*wctx)->writer->uninit(*wctx);
520 521
    for (i = 0; i < SECTION_MAX_NB_LEVELS; i++)
        av_bprint_finalize(&(*wctx)->section_pbuf[i], NULL);
522 523
    if ((*wctx)->writer->priv_class)
        av_opt_free((*wctx)->priv);
524
    av_freep(&((*wctx)->priv));
525
    av_opt_free(*wctx);
526
    av_freep(wctx);
527 528
}

529 530 531 532 533 534 535 536 537
static void bprint_bytes(AVBPrint *bp, const uint8_t *ubuf, size_t ubuf_size)
{
    int i;
    av_bprintf(bp, "0X");
    for (i = 0; i < ubuf_size; i++)
        av_bprintf(bp, "%02X", ubuf[i]);
}


538 539
static int writer_open(WriterContext **wctx, const Writer *writer, const char *args,
                       const struct section *sections, int nb_sections)
540
{
541
    int i, ret = 0;
542

543
    if (!(*wctx = av_mallocz(sizeof(WriterContext)))) {
544 545
        ret = AVERROR(ENOMEM);
        goto fail;
546 547
    }

548 549 550
    if (!((*wctx)->priv = av_mallocz(writer->priv_size))) {
        ret = AVERROR(ENOMEM);
        goto fail;
551
    }
552

553
    (*wctx)->class = &writer_class;
554
    (*wctx)->writer = writer;
555 556 557
    (*wctx)->level = -1;
    (*wctx)->sections = sections;
    (*wctx)->nb_sections = nb_sections;
558

559 560
    av_opt_set_defaults(*wctx);

561 562 563 564
    if (writer->priv_class) {
        void *priv_ctx = (*wctx)->priv;
        *((const AVClass **)priv_ctx) = writer->priv_class;
        av_opt_set_defaults(priv_ctx);
565
    }
566

567 568 569 570 571 572 573 574
    /* convert options to dictionary */
    if (args) {
        AVDictionary *opts = NULL;
        AVDictionaryEntry *opt = NULL;

        if ((ret = av_dict_parse_string(&opts, args, "=", ":", 0)) < 0) {
            av_log(*wctx, AV_LOG_ERROR, "Failed to parse option string '%s' provided to writer context\n", args);
            av_dict_free(&opts);
575
            goto fail;
576 577 578 579 580 581 582 583 584 585 586 587
        }

        while ((opt = av_dict_get(opts, "", opt, AV_DICT_IGNORE_SUFFIX))) {
            if ((ret = av_opt_set(*wctx, opt->key, opt->value, AV_OPT_SEARCH_CHILDREN)) < 0) {
                av_log(*wctx, AV_LOG_ERROR, "Failed to set option '%s' with value '%s' provided to writer context\n",
                       opt->key, opt->value);
                av_dict_free(&opts);
                goto fail;
            }
        }

        av_dict_free(&opts);
588
    }
589

590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609
    /* validate replace string */
    {
        const uint8_t *p = (*wctx)->string_validation_replacement;
        const uint8_t *endp = p + strlen(p);
        while (*p) {
            const uint8_t *p0 = p;
            int32_t code;
            ret = av_utf8_decode(&code, &p, endp, (*wctx)->string_validation_utf8_flags);
            if (ret < 0) {
                AVBPrint bp;
                av_bprint_init(&bp, 0, AV_BPRINT_SIZE_AUTOMATIC);
                bprint_bytes(&bp, p0, p-p0),
                    av_log(wctx, AV_LOG_ERROR,
                           "Invalid UTF8 sequence %s found in string validation replace '%s'\n",
                           bp.str, (*wctx)->string_validation_replacement);
                return ret;
            }
        }
    }

610 611 612
    for (i = 0; i < SECTION_MAX_NB_LEVELS; i++)
        av_bprint_init(&(*wctx)->section_pbuf[i], 1, AV_BPRINT_SIZE_UNLIMITED);

613
    if ((*wctx)->writer->init)
614
        ret = (*wctx)->writer->init(*wctx);
615 616 617 618 619 620 621
    if (ret < 0)
        goto fail;

    return 0;

fail:
    writer_close(wctx);
622 623 624
    return ret;
}

625
static inline void writer_print_section_header(WriterContext *wctx,
626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644
                                               int section_id)
{
    int parent_section_id;
    wctx->level++;
    av_assert0(wctx->level < SECTION_MAX_NB_LEVELS);
    parent_section_id = wctx->level ?
        (wctx->section[wctx->level-1])->id : SECTION_ID_NONE;

    wctx->nb_item[wctx->level] = 0;
    wctx->section[wctx->level] = &wctx->sections[section_id];

    if (section_id == SECTION_ID_PACKETS_AND_FRAMES) {
        wctx->nb_section_packet = wctx->nb_section_frame =
        wctx->nb_section_packet_frame = 0;
    } else if (parent_section_id == SECTION_ID_PACKETS_AND_FRAMES) {
        wctx->nb_section_packet_frame = section_id == SECTION_ID_PACKET ?
            wctx->nb_section_packet : wctx->nb_section_frame;
    }

645
    if (wctx->writer->print_section_header)
646
        wctx->writer->print_section_header(wctx);
647 648
}

649
static inline void writer_print_section_footer(WriterContext *wctx)
650
{
651 652 653 654 655 656 657 658 659
    int section_id = wctx->section[wctx->level]->id;
    int parent_section_id = wctx->level ?
        wctx->section[wctx->level-1]->id : SECTION_ID_NONE;

    if (parent_section_id != SECTION_ID_NONE)
        wctx->nb_item[wctx->level-1]++;
    if (parent_section_id == SECTION_ID_PACKETS_AND_FRAMES) {
        if (section_id == SECTION_ID_PACKET) wctx->nb_section_packet++;
        else                                     wctx->nb_section_frame++;
660
    }
661 662 663
    if (wctx->writer->print_section_footer)
        wctx->writer->print_section_footer(wctx);
    wctx->level--;
664
}
665

666
static inline void writer_print_integer(WriterContext *wctx,
667
                                        const char *key, long long int val)
668
{
669 670 671
    const struct section *section = wctx->section[wctx->level];

    if (section->show_all_entries || av_dict_get(section->entries_to_show, key, NULL, 0)) {
672
        wctx->writer->print_integer(wctx, key, val);
673
        wctx->nb_item[wctx->level]++;
674
    }
675 676
}

677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734
static inline int validate_string(WriterContext *wctx, char **dstp, const char *src)
{
    const uint8_t *p, *endp;
    AVBPrint dstbuf;
    int invalid_chars_nb = 0, ret = 0;

    av_bprint_init(&dstbuf, 0, AV_BPRINT_SIZE_UNLIMITED);

    endp = src + strlen(src);
    for (p = (uint8_t *)src; *p;) {
        uint32_t code;
        int invalid = 0;
        const uint8_t *p0 = p;

        if (av_utf8_decode(&code, &p, endp, wctx->string_validation_utf8_flags) < 0) {
            AVBPrint bp;
            av_bprint_init(&bp, 0, AV_BPRINT_SIZE_AUTOMATIC);
            bprint_bytes(&bp, p0, p-p0);
            av_log(wctx, AV_LOG_DEBUG,
                   "Invalid UTF-8 sequence %s found in string '%s'\n", bp.str, src);
            invalid = 1;
        }

        if (invalid) {
            invalid_chars_nb++;

            switch (wctx->string_validation) {
            case WRITER_STRING_VALIDATION_FAIL:
                av_log(wctx, AV_LOG_ERROR,
                       "Invalid UTF-8 sequence found in string '%s'\n", src);
                ret = AVERROR_INVALIDDATA;
                goto end;
                break;

            case WRITER_STRING_VALIDATION_REPLACE:
                av_bprintf(&dstbuf, "%s", wctx->string_validation_replacement);
                break;
            }
        }

        if (!invalid || wctx->string_validation == WRITER_STRING_VALIDATION_IGNORE)
            av_bprint_append_data(&dstbuf, p0, p-p0);
    }

    if (invalid_chars_nb && wctx->string_validation == WRITER_STRING_VALIDATION_REPLACE) {
        av_log(wctx, AV_LOG_WARNING,
               "%d invalid UTF-8 sequence(s) found in string '%s', replaced with '%s'\n",
               invalid_chars_nb, src, wctx->string_validation_replacement);
    }

end:
    av_bprint_finalize(&dstbuf, dstp);
    return ret;
}

#define PRINT_STRING_OPT      1
#define PRINT_STRING_VALIDATE 2

735
static inline int writer_print_string(WriterContext *wctx,
736
                                      const char *key, const char *val, int flags)
737
{
738
    const struct section *section = wctx->section[wctx->level];
739
    int ret = 0;
740

741 742
    if ((flags & PRINT_STRING_OPT)
        && !(wctx->writer->flags & WRITER_FLAG_DISPLAY_OPTIONAL_FIELDS))
743
        return 0;
744 745

    if (section->show_all_entries || av_dict_get(section->entries_to_show, key, NULL, 0)) {
746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764
        if (flags & PRINT_STRING_VALIDATE) {
            char *key1 = NULL, *val1 = NULL;
            ret = validate_string(wctx, &key1, key);
            if (ret < 0) goto end;
            ret = validate_string(wctx, &val1, val);
            if (ret < 0) goto end;
            wctx->writer->print_string(wctx, key1, val1);
        end:
            if (ret < 0) {
                av_log(wctx, AV_LOG_ERROR,
                       "Invalid key=value string combination %s=%s in section %s\n",
                       key, val, section->unique_name);
            }
            av_free(key1);
            av_free(val1);
        } else {
            wctx->writer->print_string(wctx, key, val);
        }

765
        wctx->nb_item[wctx->level]++;
766
    }
767 768

    return ret;
769 770
}

771 772 773 774 775 776 777 778 779
static inline void writer_print_rational(WriterContext *wctx,
                                         const char *key, AVRational q, char sep)
{
    AVBPrint buf;
    av_bprint_init(&buf, 0, AV_BPRINT_SIZE_AUTOMATIC);
    av_bprintf(&buf, "%d%c%d", q.num, sep, q.den);
    writer_print_string(wctx, key, buf.str, 0);
}

780
static void writer_print_time(WriterContext *wctx, const char *key,
781
                              int64_t ts, const AVRational *time_base, int is_duration)
782 783 784
{
    char buf[128];

785
    if ((!is_duration && ts == AV_NOPTS_VALUE) || (is_duration && ts == 0)) {
786
        writer_print_string(wctx, key, "N/A", PRINT_STRING_OPT);
787 788 789 790 791 792 793 794
    } else {
        double d = ts * av_q2d(*time_base);
        struct unit_value uv;
        uv.val.d = d;
        uv.unit = unit_second_str;
        value_string(buf, sizeof(buf), uv);
        writer_print_string(wctx, key, buf, 0);
    }
795 796
}

797
static void writer_print_ts(WriterContext *wctx, const char *key, int64_t ts, int is_duration)
798
{
799
    if ((!is_duration && ts == AV_NOPTS_VALUE) || (is_duration && ts == 0)) {
800
        writer_print_string(wctx, key, "N/A", PRINT_STRING_OPT);
801
    } else {
802
        writer_print_integer(wctx, key, ts);
803 804 805
    }
}

806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833
static void writer_print_data(WriterContext *wctx, const char *name,
                              uint8_t *data, int size)
{
    AVBPrint bp;
    int offset = 0, l, i;

    av_bprint_init(&bp, 0, AV_BPRINT_SIZE_UNLIMITED);
    av_bprintf(&bp, "\n");
    while (size) {
        av_bprintf(&bp, "%08x: ", offset);
        l = FFMIN(size, 16);
        for (i = 0; i < l; i++) {
            av_bprintf(&bp, "%02x", data[i]);
            if (i & 1)
                av_bprintf(&bp, " ");
        }
        av_bprint_chars(&bp, ' ', 41 - 2 * i - i / 2);
        for (i = 0; i < l; i++)
            av_bprint_chars(&bp, data[i] - 32U < 95 ? data[i] : '.', 1);
        av_bprintf(&bp, "\n");
        offset += l;
        data   += l;
        size   -= l;
    }
    writer_print_string(wctx, name, bp.str, 0);
    av_bprint_finalize(&bp, NULL);
}

834 835 836 837 838 839 840 841 842 843 844 845 846 847 848
static void writer_print_data_hash(WriterContext *wctx, const char *name,
                                   uint8_t *data, int size)
{
    char *p, buf[AV_HASH_MAX_SIZE * 2 + 64] = { 0 };

    if (!hash)
        return;
    av_hash_init(hash);
    av_hash_update(hash, data, size);
    snprintf(buf, sizeof(buf), "%s:", av_hash_get_name(hash));
    p = buf + strlen(buf);
    av_hash_final_hex(hash, p, buf + sizeof(buf) - p);
    writer_print_string(wctx, name, buf, 0);
}

849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874
static void writer_print_integers(WriterContext *wctx, const char *name,
                                  uint8_t *data, int size, const char *format,
                                  int columns, int bytes, int offset_add)
{
    AVBPrint bp;
    int offset = 0, l, i;

    av_bprint_init(&bp, 0, AV_BPRINT_SIZE_UNLIMITED);
    av_bprintf(&bp, "\n");
    while (size) {
        av_bprintf(&bp, "%08x: ", offset);
        l = FFMIN(size, columns);
        for (i = 0; i < l; i++) {
            if      (bytes == 1) av_bprintf(&bp, format, *data);
            else if (bytes == 2) av_bprintf(&bp, format, AV_RN16(data));
            else if (bytes == 4) av_bprintf(&bp, format, AV_RN32(data));
            data += bytes;
            size --;
        }
        av_bprintf(&bp, "\n");
        offset += offset_add;
    }
    writer_print_string(wctx, name, bp.str, 0);
    av_bprint_finalize(&bp, NULL);
}

875 876
#define MAX_REGISTERED_WRITERS_NB 64

877
static const Writer *registered_writers[MAX_REGISTERED_WRITERS_NB + 1];
878

879
static int writer_register(const Writer *writer)
880
{
881 882 883 884 885 886 887
    static int next_registered_writer_idx = 0;

    if (next_registered_writer_idx == MAX_REGISTERED_WRITERS_NB)
        return AVERROR(ENOMEM);

    registered_writers[next_registered_writer_idx++] = writer;
    return 0;
888 889
}

890
static const Writer *writer_get_by_name(const char *name)
891 892 893 894 895 896 897 898 899
{
    int i;

    for (i = 0; registered_writers[i]; i++)
        if (!strcmp(registered_writers[i]->name, name))
            return registered_writers[i];

    return NULL;
}
900

901

902
/* WRITERS */
903

904 905 906 907 908 909
#define DEFINE_WRITER_CLASS(name)                   \
static const char *name##_get_name(void *ctx)       \
{                                                   \
    return #name ;                                  \
}                                                   \
static const AVClass name##_class = {               \
910 911 912
    .class_name = #name,                            \
    .item_name  = name##_get_name,                  \
    .option     = name##_options                    \
913 914
}

915 916
/* Default output */

917 918
typedef struct DefaultContext {
    const AVClass *class;
919
    int nokey;
920
    int noprint_wrappers;
921
    int nested_section[SECTION_MAX_NB_LEVELS];
922 923
} DefaultContext;

924
#undef OFFSET
925 926 927
#define OFFSET(x) offsetof(DefaultContext, x)

static const AVOption default_options[] = {
928 929 930 931
    { "noprint_wrappers", "do not print headers and footers", OFFSET(noprint_wrappers), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1 },
    { "nw",               "do not print headers and footers", OFFSET(noprint_wrappers), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1 },
    { "nokey",          "force no key printing",     OFFSET(nokey),          AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1 },
    { "nk",             "force no key printing",     OFFSET(nokey),          AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1 },
932 933 934
    {NULL},
};

935
DEFINE_WRITER_CLASS(default);
936

937 938 939 940 941
/* lame uppercasing routine, assumes the string is lower case ASCII */
static inline char *upcase_string(char *dst, size_t dst_size, const char *src)
{
    int i;
    for (i = 0; src[i] && i < dst_size-1; i++)
942
        dst[i] = av_toupper(src[i]);
943 944 945 946
    dst[i] = 0;
    return dst;
}

947
static void default_print_section_header(WriterContext *wctx)
948
{
949
    DefaultContext *def = wctx->priv;
950
    char buf[32];
951 952 953 954
    const struct section *section = wctx->section[wctx->level];
    const struct section *parent_section = wctx->level ?
        wctx->section[wctx->level-1] : NULL;

955
    av_bprint_clear(&wctx->section_pbuf[wctx->level]);
956 957 958
    if (parent_section &&
        !(parent_section->flags & (SECTION_FLAG_IS_WRAPPER|SECTION_FLAG_IS_ARRAY))) {
        def->nested_section[wctx->level] = 1;
959 960
        av_bprintf(&wctx->section_pbuf[wctx->level], "%s%s:",
                   wctx->section_pbuf[wctx->level-1].str,
961 962 963 964 965
                   upcase_string(buf, sizeof(buf),
                                 av_x_if_null(section->element_name, section->name)));
    }

    if (def->noprint_wrappers || def->nested_section[wctx->level])
966
        return;
967

968 969
    if (!(section->flags & (SECTION_FLAG_IS_WRAPPER|SECTION_FLAG_IS_ARRAY)))
        printf("[%s]\n", upcase_string(buf, sizeof(buf), section->name));
970 971
}

972
static void default_print_section_footer(WriterContext *wctx)
973
{
974
    DefaultContext *def = wctx->priv;
975
    const struct section *section = wctx->section[wctx->level];
976 977
    char buf[32];

978
    if (def->noprint_wrappers || def->nested_section[wctx->level])
979 980 981 982
        return;

    if (!(section->flags & (SECTION_FLAG_IS_WRAPPER|SECTION_FLAG_IS_ARRAY)))
        printf("[/%s]\n", upcase_string(buf, sizeof(buf), section->name));
983 984 985 986
}

static void default_print_str(WriterContext *wctx, const char *key, const char *value)
{
987
    DefaultContext *def = wctx->priv;
988

989
    if (!def->nokey)
990
        printf("%s%s=", wctx->section_pbuf[wctx->level].str, key);
991
    printf("%s\n", value);
992 993
}

994
static void default_print_int(WriterContext *wctx, const char *key, long long int value)
995
{
996 997 998
    DefaultContext *def = wctx->priv;

    if (!def->nokey)
999
        printf("%s%s=", wctx->section_pbuf[wctx->level].str, key);
1000
    printf("%lld\n", value);
1001 1002
}

1003
static const Writer default_writer = {
1004
    .name                  = "default",
1005
    .priv_size             = sizeof(DefaultContext),
1006 1007 1008 1009
    .print_section_header  = default_print_section_header,
    .print_section_footer  = default_print_section_footer,
    .print_integer         = default_print_int,
    .print_string          = default_print_str,
1010
    .flags = WRITER_FLAG_DISPLAY_OPTIONAL_FIELDS,
1011
    .priv_class            = &default_class,
1012 1013
};

1014 1015 1016
/* Compact output */

/**
1017
 * Apply C-language-like string escaping.
1018
 */
1019
static const char *c_escape_str(AVBPrint *dst, const char *src, const char sep, void *log_ctx)
1020 1021 1022 1023
{
    const char *p;

    for (p = src; *p; p++) {
1024
        switch (*p) {
1025 1026
        case '\b': av_bprintf(dst, "%s", "\\b");  break;
        case '\f': av_bprintf(dst, "%s", "\\f");  break;
1027 1028 1029
        case '\n': av_bprintf(dst, "%s", "\\n");  break;
        case '\r': av_bprintf(dst, "%s", "\\r");  break;
        case '\\': av_bprintf(dst, "%s", "\\\\"); break;
1030 1031
        default:
            if (*p == sep)
1032 1033
                av_bprint_chars(dst, '\\', 1);
            av_bprint_chars(dst, *p, 1);
1034 1035
        }
    }
1036
    return dst->str;
1037 1038 1039 1040 1041
}

/**
 * Quote fields containing special characters, check RFC4180.
 */
1042
static const char *csv_escape_str(AVBPrint *dst, const char *src, const char sep, void *log_ctx)
1043
{
1044 1045
    char meta_chars[] = { sep, '"', '\n', '\r', '\0' };
    int needs_quoting = !!src[strcspn(src, meta_chars)];
1046

1047
    if (needs_quoting)
1048
        av_bprint_chars(dst, '"', 1);
1049

1050 1051
    for (; *src; src++) {
        if (*src == '"')
1052
            av_bprint_chars(dst, '"', 1);
1053
        av_bprint_chars(dst, *src, 1);
1054
    }
1055
    if (needs_quoting)
1056
        av_bprint_chars(dst, '"', 1);
1057
    return dst->str;
1058 1059
}

1060
static const char *none_escape_str(AVBPrint *dst, const char *src, const char sep, void *log_ctx)
1061 1062 1063 1064 1065 1066 1067 1068 1069
{
    return src;
}

typedef struct CompactContext {
    const AVClass *class;
    char *item_sep_str;
    char item_sep;
    int nokey;
1070
    int print_section;
1071
    char *escape_mode_str;
1072
    const char * (*escape_str)(AVBPrint *dst, const char *src, const char sep, void *log_ctx);
1073
    int nested_section[SECTION_MAX_NB_LEVELS];
1074 1075
    int has_nested_elems[SECTION_MAX_NB_LEVELS];
    int terminate_line[SECTION_MAX_NB_LEVELS];
1076 1077
} CompactContext;

1078
#undef OFFSET
1079 1080 1081 1082 1083
#define OFFSET(x) offsetof(CompactContext, x)

static const AVOption compact_options[]= {
    {"item_sep", "set item separator",    OFFSET(item_sep_str),    AV_OPT_TYPE_STRING, {.str="|"},  CHAR_MIN, CHAR_MAX },
    {"s",        "set item separator",    OFFSET(item_sep_str),    AV_OPT_TYPE_STRING, {.str="|"},  CHAR_MIN, CHAR_MAX },
1084 1085
    {"nokey",    "force no key printing", OFFSET(nokey),           AV_OPT_TYPE_BOOL,   {.i64=0},    0,        1        },
    {"nk",       "force no key printing", OFFSET(nokey),           AV_OPT_TYPE_BOOL,   {.i64=0},    0,        1        },
1086 1087
    {"escape",   "set escape mode",       OFFSET(escape_mode_str), AV_OPT_TYPE_STRING, {.str="c"},  CHAR_MIN, CHAR_MAX },
    {"e",        "set escape mode",       OFFSET(escape_mode_str), AV_OPT_TYPE_STRING, {.str="c"},  CHAR_MIN, CHAR_MAX },
1088 1089
    {"print_section", "print section name", OFFSET(print_section), AV_OPT_TYPE_BOOL,   {.i64=1},    0,        1        },
    {"p",             "print section name", OFFSET(print_section), AV_OPT_TYPE_BOOL,   {.i64=1},    0,        1        },
1090 1091 1092
    {NULL},
};

1093
DEFINE_WRITER_CLASS(compact);
1094

1095
static av_cold int compact_init(WriterContext *wctx)
1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116
{
    CompactContext *compact = wctx->priv;

    if (strlen(compact->item_sep_str) != 1) {
        av_log(wctx, AV_LOG_ERROR, "Item separator '%s' specified, but must contain a single character\n",
               compact->item_sep_str);
        return AVERROR(EINVAL);
    }
    compact->item_sep = compact->item_sep_str[0];

    if      (!strcmp(compact->escape_mode_str, "none")) compact->escape_str = none_escape_str;
    else if (!strcmp(compact->escape_mode_str, "c"   )) compact->escape_str = c_escape_str;
    else if (!strcmp(compact->escape_mode_str, "csv" )) compact->escape_str = csv_escape_str;
    else {
        av_log(wctx, AV_LOG_ERROR, "Unknown escape mode '%s'\n", compact->escape_mode_str);
        return AVERROR(EINVAL);
    }

    return 0;
}

1117
static void compact_print_section_header(WriterContext *wctx)
1118 1119
{
    CompactContext *compact = wctx->priv;
1120
    const struct section *section = wctx->section[wctx->level];
1121 1122
    const struct section *parent_section = wctx->level ?
        wctx->section[wctx->level-1] : NULL;
1123 1124
    compact->terminate_line[wctx->level] = 1;
    compact->has_nested_elems[wctx->level] = 0;
1125

1126
    av_bprint_clear(&wctx->section_pbuf[wctx->level]);
1127
    if (!(section->flags & SECTION_FLAG_IS_ARRAY) && parent_section &&
1128 1129
        !(parent_section->flags & (SECTION_FLAG_IS_WRAPPER|SECTION_FLAG_IS_ARRAY))) {
        compact->nested_section[wctx->level] = 1;
1130
        compact->has_nested_elems[wctx->level-1] = 1;
1131 1132
        av_bprintf(&wctx->section_pbuf[wctx->level], "%s%s:",
                   wctx->section_pbuf[wctx->level-1].str,
1133
                   (char *)av_x_if_null(section->element_name, section->name));
1134
        wctx->nb_item[wctx->level] = wctx->nb_item[wctx->level-1];
1135 1136 1137 1138 1139 1140 1141 1142 1143 1144
    } else {
        if (parent_section && compact->has_nested_elems[wctx->level-1] &&
            (section->flags & SECTION_FLAG_IS_ARRAY)) {
            compact->terminate_line[wctx->level-1] = 0;
            printf("\n");
        }
        if (compact->print_section &&
            !(section->flags & (SECTION_FLAG_IS_WRAPPER|SECTION_FLAG_IS_ARRAY)))
            printf("%s%c", section->name, compact->item_sep);
    }
1145 1146
}

1147
static void compact_print_section_footer(WriterContext *wctx)
1148
{
1149
    CompactContext *compact = wctx->priv;
1150

1151
    if (!compact->nested_section[wctx->level] &&
1152
        compact->terminate_line[wctx->level] &&
1153
        !(wctx->section[wctx->level]->flags & (SECTION_FLAG_IS_WRAPPER|SECTION_FLAG_IS_ARRAY)))
1154
        printf("\n");
1155 1156 1157 1158 1159
}

static void compact_print_str(WriterContext *wctx, const char *key, const char *value)
{
    CompactContext *compact = wctx->priv;
1160
    AVBPrint buf;
1161

1162
    if (wctx->nb_item[wctx->level]) printf("%c", compact->item_sep);
1163
    if (!compact->nokey)
1164
        printf("%s%s=", wctx->section_pbuf[wctx->level].str, key);
1165 1166 1167
    av_bprint_init(&buf, 1, AV_BPRINT_SIZE_UNLIMITED);
    printf("%s", compact->escape_str(&buf, value, compact->item_sep, wctx));
    av_bprint_finalize(&buf, NULL);
1168 1169
}

1170
static void compact_print_int(WriterContext *wctx, const char *key, long long int value)
1171 1172 1173
{
    CompactContext *compact = wctx->priv;

1174
    if (wctx->nb_item[wctx->level]) printf("%c", compact->item_sep);
1175
    if (!compact->nokey)
1176
        printf("%s%s=", wctx->section_pbuf[wctx->level].str, key);
1177
    printf("%lld", value);
1178 1179
}

1180
static const Writer compact_writer = {
1181 1182 1183 1184 1185 1186 1187 1188
    .name                 = "compact",
    .priv_size            = sizeof(CompactContext),
    .init                 = compact_init,
    .print_section_header = compact_print_section_header,
    .print_section_footer = compact_print_section_footer,
    .print_integer        = compact_print_int,
    .print_string         = compact_print_str,
    .flags = WRITER_FLAG_DISPLAY_OPTIONAL_FIELDS,
1189
    .priv_class           = &compact_class,
1190 1191
};

1192 1193
/* CSV output */

1194 1195 1196 1197 1198 1199
#undef OFFSET
#define OFFSET(x) offsetof(CompactContext, x)

static const AVOption csv_options[] = {
    {"item_sep", "set item separator",    OFFSET(item_sep_str),    AV_OPT_TYPE_STRING, {.str=","},  CHAR_MIN, CHAR_MAX },
    {"s",        "set item separator",    OFFSET(item_sep_str),    AV_OPT_TYPE_STRING, {.str=","},  CHAR_MIN, CHAR_MAX },
1200 1201
    {"nokey",    "force no key printing", OFFSET(nokey),           AV_OPT_TYPE_BOOL,   {.i64=1},    0,        1        },
    {"nk",       "force no key printing", OFFSET(nokey),           AV_OPT_TYPE_BOOL,   {.i64=1},    0,        1        },
1202 1203
    {"escape",   "set escape mode",       OFFSET(escape_mode_str), AV_OPT_TYPE_STRING, {.str="csv"}, CHAR_MIN, CHAR_MAX },
    {"e",        "set escape mode",       OFFSET(escape_mode_str), AV_OPT_TYPE_STRING, {.str="csv"}, CHAR_MIN, CHAR_MAX },
1204 1205
    {"print_section", "print section name", OFFSET(print_section), AV_OPT_TYPE_BOOL,   {.i64=1},    0,        1        },
    {"p",             "print section name", OFFSET(print_section), AV_OPT_TYPE_BOOL,   {.i64=1},    0,        1        },
1206 1207 1208 1209
    {NULL},
};

DEFINE_WRITER_CLASS(csv);
1210

1211
static const Writer csv_writer = {
1212 1213
    .name                 = "csv",
    .priv_size            = sizeof(CompactContext),
1214
    .init                 = compact_init,
1215 1216 1217 1218 1219
    .print_section_header = compact_print_section_header,
    .print_section_footer = compact_print_section_footer,
    .print_integer        = compact_print_int,
    .print_string         = compact_print_str,
    .flags = WRITER_FLAG_DISPLAY_OPTIONAL_FIELDS,
1220
    .priv_class           = &csv_class,
1221 1222
};

1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237
/* Flat output */

typedef struct FlatContext {
    const AVClass *class;
    const char *sep_str;
    char sep;
    int hierarchical;
} FlatContext;

#undef OFFSET
#define OFFSET(x) offsetof(FlatContext, x)

static const AVOption flat_options[]= {
    {"sep_char", "set separator",    OFFSET(sep_str),    AV_OPT_TYPE_STRING, {.str="."},  CHAR_MIN, CHAR_MAX },
    {"s",        "set separator",    OFFSET(sep_str),    AV_OPT_TYPE_STRING, {.str="."},  CHAR_MIN, CHAR_MAX },
1238 1239
    {"hierarchical", "specify if the section specification should be hierarchical", OFFSET(hierarchical), AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1 },
    {"h",            "specify if the section specification should be hierarchical", OFFSET(hierarchical), AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1 },
1240 1241 1242
    {NULL},
};

1243
DEFINE_WRITER_CLASS(flat);
1244

1245
static av_cold int flat_init(WriterContext *wctx)
1246 1247 1248 1249 1250 1251 1252 1253 1254
{
    FlatContext *flat = wctx->priv;

    if (strlen(flat->sep_str) != 1) {
        av_log(wctx, AV_LOG_ERROR, "Item separator '%s' specified, but must contain a single character\n",
               flat->sep_str);
        return AVERROR(EINVAL);
    }
    flat->sep = flat->sep_str[0];
1255

1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283
    return 0;
}

static const char *flat_escape_key_str(AVBPrint *dst, const char *src, const char sep)
{
    const char *p;

    for (p = src; *p; p++) {
        if (!((*p >= '0' && *p <= '9') ||
              (*p >= 'a' && *p <= 'z') ||
              (*p >= 'A' && *p <= 'Z')))
            av_bprint_chars(dst, '_', 1);
        else
            av_bprint_chars(dst, *p, 1);
    }
    return dst->str;
}

static const char *flat_escape_value_str(AVBPrint *dst, const char *src)
{
    const char *p;

    for (p = src; *p; p++) {
        switch (*p) {
        case '\n': av_bprintf(dst, "%s", "\\n");  break;
        case '\r': av_bprintf(dst, "%s", "\\r");  break;
        case '\\': av_bprintf(dst, "%s", "\\\\"); break;
        case '"':  av_bprintf(dst, "%s", "\\\""); break;
1284 1285
        case '`':  av_bprintf(dst, "%s", "\\`");  break;
        case '$':  av_bprintf(dst, "%s", "\\$");  break;
1286 1287 1288 1289 1290 1291
        default:   av_bprint_chars(dst, *p, 1);   break;
        }
    }
    return dst->str;
}

1292
static void flat_print_section_header(WriterContext *wctx)
1293 1294
{
    FlatContext *flat = wctx->priv;
1295
    AVBPrint *buf = &wctx->section_pbuf[wctx->level];
1296 1297 1298
    const struct section *section = wctx->section[wctx->level];
    const struct section *parent_section = wctx->level ?
        wctx->section[wctx->level-1] : NULL;
1299

1300 1301
    /* build section header */
    av_bprint_clear(buf);
1302 1303
    if (!parent_section)
        return;
1304
    av_bprintf(buf, "%s", wctx->section_pbuf[wctx->level-1].str);
1305

1306 1307 1308
    if (flat->hierarchical ||
        !(section->flags & (SECTION_FLAG_IS_ARRAY|SECTION_FLAG_IS_WRAPPER))) {
        av_bprintf(buf, "%s%s", wctx->section[wctx->level]->name, flat->sep_str);
1309

1310 1311 1312 1313 1314
        if (parent_section->flags & SECTION_FLAG_IS_ARRAY) {
            int n = parent_section->id == SECTION_ID_PACKETS_AND_FRAMES ?
                wctx->nb_section_packet_frame : wctx->nb_item[wctx->level-1];
            av_bprintf(buf, "%d%s", n, flat->sep_str);
        }
1315
    }
1316 1317 1318 1319
}

static void flat_print_int(WriterContext *wctx, const char *key, long long int value)
{
1320
    printf("%s%s=%lld\n", wctx->section_pbuf[wctx->level].str, key, value);
1321 1322 1323 1324 1325 1326 1327
}

static void flat_print_str(WriterContext *wctx, const char *key, const char *value)
{
    FlatContext *flat = wctx->priv;
    AVBPrint buf;

1328
    printf("%s", wctx->section_pbuf[wctx->level].str);
1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343
    av_bprint_init(&buf, 1, AV_BPRINT_SIZE_UNLIMITED);
    printf("%s=", flat_escape_key_str(&buf, key, flat->sep));
    av_bprint_clear(&buf);
    printf("\"%s\"\n", flat_escape_value_str(&buf, value));
    av_bprint_finalize(&buf, NULL);
}

static const Writer flat_writer = {
    .name                  = "flat",
    .priv_size             = sizeof(FlatContext),
    .init                  = flat_init,
    .print_section_header  = flat_print_section_header,
    .print_integer         = flat_print_int,
    .print_string          = flat_print_str,
    .flags = WRITER_FLAG_DISPLAY_OPTIONAL_FIELDS|WRITER_FLAG_PUT_PACKETS_AND_FRAMES_IN_SAME_CHAPTER,
1344
    .priv_class            = &flat_class,
1345 1346
};

1347 1348
/* INI format output */

1349
typedef struct INIContext {
1350 1351 1352 1353 1354 1355 1356 1357
    const AVClass *class;
    int hierarchical;
} INIContext;

#undef OFFSET
#define OFFSET(x) offsetof(INIContext, x)

static const AVOption ini_options[] = {
1358 1359
    {"hierarchical", "specify if the section specification should be hierarchical", OFFSET(hierarchical), AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1 },
    {"h",            "specify if the section specification should be hierarchical", OFFSET(hierarchical), AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1 },
1360 1361 1362
    {NULL},
};

1363
DEFINE_WRITER_CLASS(ini);
1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391

static char *ini_escape_str(AVBPrint *dst, const char *src)
{
    int i = 0;
    char c = 0;

    while (c = src[i++]) {
        switch (c) {
        case '\b': av_bprintf(dst, "%s", "\\b"); break;
        case '\f': av_bprintf(dst, "%s", "\\f"); break;
        case '\n': av_bprintf(dst, "%s", "\\n"); break;
        case '\r': av_bprintf(dst, "%s", "\\r"); break;
        case '\t': av_bprintf(dst, "%s", "\\t"); break;
        case '\\':
        case '#' :
        case '=' :
        case ':' : av_bprint_chars(dst, '\\', 1);
        default:
            if ((unsigned char)c < 32)
                av_bprintf(dst, "\\x00%02x", c & 0xff);
            else
                av_bprint_chars(dst, c, 1);
            break;
        }
    }
    return dst->str;
}

1392
static void ini_print_section_header(WriterContext *wctx)
1393 1394
{
    INIContext *ini = wctx->priv;
1395
    AVBPrint *buf = &wctx->section_pbuf[wctx->level];
1396 1397 1398
    const struct section *section = wctx->section[wctx->level];
    const struct section *parent_section = wctx->level ?
        wctx->section[wctx->level-1] : NULL;
1399

1400 1401
    av_bprint_clear(buf);
    if (!parent_section) {
1402 1403 1404
        printf("# ffprobe output\n\n");
        return;
    }
1405

1406
    if (wctx->nb_item[wctx->level-1])
1407 1408
        printf("\n");

1409
    av_bprintf(buf, "%s", wctx->section_pbuf[wctx->level-1].str);
1410 1411 1412
    if (ini->hierarchical ||
        !(section->flags & (SECTION_FLAG_IS_ARRAY|SECTION_FLAG_IS_WRAPPER))) {
        av_bprintf(buf, "%s%s", buf->str[0] ? "." : "", wctx->section[wctx->level]->name);
1413

1414 1415 1416 1417 1418
        if (parent_section->flags & SECTION_FLAG_IS_ARRAY) {
            int n = parent_section->id == SECTION_ID_PACKETS_AND_FRAMES ?
                wctx->nb_section_packet_frame : wctx->nb_item[wctx->level-1];
            av_bprintf(buf, ".%d", n);
        }
1419
    }
1420

1421
    if (!(section->flags & (SECTION_FLAG_IS_ARRAY|SECTION_FLAG_IS_WRAPPER)))
1422
        printf("[%s]\n", buf->str);
1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447
}

static void ini_print_str(WriterContext *wctx, const char *key, const char *value)
{
    AVBPrint buf;

    av_bprint_init(&buf, 1, AV_BPRINT_SIZE_UNLIMITED);
    printf("%s=", ini_escape_str(&buf, key));
    av_bprint_clear(&buf);
    printf("%s\n", ini_escape_str(&buf, value));
    av_bprint_finalize(&buf, NULL);
}

static void ini_print_int(WriterContext *wctx, const char *key, long long int value)
{
    printf("%s=%lld\n", key, value);
}

static const Writer ini_writer = {
    .name                  = "ini",
    .priv_size             = sizeof(INIContext),
    .print_section_header  = ini_print_section_header,
    .print_integer         = ini_print_int,
    .print_string          = ini_print_str,
    .flags = WRITER_FLAG_DISPLAY_OPTIONAL_FIELDS|WRITER_FLAG_PUT_PACKETS_AND_FRAMES_IN_SAME_CHAPTER,
1448
    .priv_class            = &ini_class,
1449 1450
};

1451 1452
/* JSON output */

1453
typedef struct JSONContext {
1454
    const AVClass *class;
1455
    int indent_level;
1456 1457
    int compact;
    const char *item_sep, *item_start_end;
1458 1459
} JSONContext;

1460 1461 1462 1463
#undef OFFSET
#define OFFSET(x) offsetof(JSONContext, x)

static const AVOption json_options[]= {
1464 1465
    { "compact", "enable compact output", OFFSET(compact), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1 },
    { "c",       "enable compact output", OFFSET(compact), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1 },
1466 1467 1468
    { NULL }
};

1469
DEFINE_WRITER_CLASS(json);
1470

1471
static av_cold int json_init(WriterContext *wctx)
1472 1473
{
    JSONContext *json = wctx->priv;
1474 1475 1476

    json->item_sep       = json->compact ? ", " : ",\n";
    json->item_start_end = json->compact ? " "  : "\n";
1477 1478 1479 1480

    return 0;
}

1481
static const char *json_escape_str(AVBPrint *dst, const char *src, void *log_ctx)
1482 1483 1484
{
    static const char json_escape[] = {'"', '\\', '\b', '\f', '\n', '\r', '\t', 0};
    static const char json_subst[]  = {'"', '\\',  'b',  'f',  'n',  'r',  't', 0};
1485 1486 1487 1488 1489
    const char *p;

    for (p = src; *p; p++) {
        char *s = strchr(json_escape, *p);
        if (s) {
1490 1491
            av_bprint_chars(dst, '\\', 1);
            av_bprint_chars(dst, json_subst[s - json_escape], 1);
1492
        } else if ((unsigned char)*p < 32) {
1493
            av_bprintf(dst, "\\u00%02x", *p & 0xff);
1494
        } else {
1495
            av_bprint_chars(dst, *p, 1);
1496 1497
        }
    }
1498
    return dst->str;
1499 1500
}

1501 1502
#define JSON_INDENT() printf("%*c", json->indent_level * 4, ' ')

1503
static void json_print_section_header(WriterContext *wctx)
1504 1505
{
    JSONContext *json = wctx->priv;
1506
    AVBPrint buf;
1507 1508 1509
    const struct section *section = wctx->section[wctx->level];
    const struct section *parent_section = wctx->level ?
        wctx->section[wctx->level-1] : NULL;
1510

1511 1512 1513 1514 1515 1516 1517
    if (wctx->level && wctx->nb_item[wctx->level-1])
        printf(",\n");

    if (section->flags & SECTION_FLAG_IS_WRAPPER) {
        printf("{\n");
        json->indent_level++;
    } else {
1518
        av_bprint_init(&buf, 1, AV_BPRINT_SIZE_UNLIMITED);
1519 1520 1521
        json_escape_str(&buf, section->name, wctx);
        JSON_INDENT();

1522
        json->indent_level++;
1523 1524
        if (section->flags & SECTION_FLAG_IS_ARRAY) {
            printf("\"%s\": [\n", buf.str);
1525
        } else if (parent_section && !(parent_section->flags & SECTION_FLAG_IS_ARRAY)) {
1526 1527 1528 1529 1530
            printf("\"%s\": {%s", buf.str, json->item_start_end);
        } else {
            printf("{%s", json->item_start_end);

            /* this is required so the parser can distinguish between packets and frames */
1531
            if (parent_section && parent_section->id == SECTION_ID_PACKETS_AND_FRAMES) {
1532 1533 1534 1535 1536 1537
                if (!json->compact)
                    JSON_INDENT();
                printf("\"type\": \"%s\"%s", section->name, json->item_sep);
            }
        }
        av_bprint_finalize(&buf, NULL);
1538
    }
1539 1540
}

1541
static void json_print_section_footer(WriterContext *wctx)
1542 1543
{
    JSONContext *json = wctx->priv;
1544
    const struct section *section = wctx->section[wctx->level];
1545

1546 1547 1548 1549
    if (wctx->level == 0) {
        json->indent_level--;
        printf("\n}\n");
    } else if (section->flags & SECTION_FLAG_IS_ARRAY) {
1550
        printf("\n");
1551
        json->indent_level--;
1552 1553
        JSON_INDENT();
        printf("]");
1554 1555 1556
    } else {
        printf("%s", json->item_start_end);
        json->indent_level--;
1557 1558
        if (!json->compact)
            JSON_INDENT();
1559
        printf("}");
1560
    }
1561 1562 1563
}

static inline void json_print_item_str(WriterContext *wctx,
1564
                                       const char *key, const char *value)
1565
{
1566
    AVBPrint buf;
1567

1568 1569
    av_bprint_init(&buf, 1, AV_BPRINT_SIZE_UNLIMITED);
    printf("\"%s\":", json_escape_str(&buf, key,   wctx));
1570
    av_bprint_clear(&buf);
1571 1572
    printf(" \"%s\"", json_escape_str(&buf, value, wctx));
    av_bprint_finalize(&buf, NULL);
1573 1574 1575 1576
}

static void json_print_str(WriterContext *wctx, const char *key, const char *value)
{
1577 1578
    JSONContext *json = wctx->priv;

1579 1580
    if (wctx->nb_item[wctx->level])
        printf("%s", json->item_sep);
1581 1582
    if (!json->compact)
        JSON_INDENT();
1583
    json_print_item_str(wctx, key, value);
1584 1585
}

1586
static void json_print_int(WriterContext *wctx, const char *key, long long int value)
1587
{
1588
    JSONContext *json = wctx->priv;
1589
    AVBPrint buf;
1590

1591 1592
    if (wctx->nb_item[wctx->level])
        printf("%s", json->item_sep);
1593 1594
    if (!json->compact)
        JSON_INDENT();
1595 1596 1597 1598

    av_bprint_init(&buf, 1, AV_BPRINT_SIZE_UNLIMITED);
    printf("\"%s\": %lld", json_escape_str(&buf, key, wctx), value);
    av_bprint_finalize(&buf, NULL);
1599
}
1600

1601
static const Writer json_writer = {
1602 1603
    .name                 = "json",
    .priv_size            = sizeof(JSONContext),
1604
    .init                 = json_init,
1605 1606 1607 1608
    .print_section_header = json_print_section_header,
    .print_section_footer = json_print_section_footer,
    .print_integer        = json_print_int,
    .print_string         = json_print_str,
1609
    .flags = WRITER_FLAG_PUT_PACKETS_AND_FRAMES_IN_SAME_CHAPTER,
1610
    .priv_class           = &json_class,
1611 1612
};

1613 1614
/* XML output */

1615
typedef struct XMLContext {
1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626
    const AVClass *class;
    int within_tag;
    int indent_level;
    int fully_qualified;
    int xsd_strict;
} XMLContext;

#undef OFFSET
#define OFFSET(x) offsetof(XMLContext, x)

static const AVOption xml_options[] = {
1627 1628 1629 1630
    {"fully_qualified", "specify if the output should be fully qualified", OFFSET(fully_qualified), AV_OPT_TYPE_BOOL, {.i64=0},  0, 1 },
    {"q",               "specify if the output should be fully qualified", OFFSET(fully_qualified), AV_OPT_TYPE_BOOL, {.i64=0},  0, 1 },
    {"xsd_strict",      "ensure that the output is XSD compliant",         OFFSET(xsd_strict),      AV_OPT_TYPE_BOOL, {.i64=0},  0, 1 },
    {"x",               "ensure that the output is XSD compliant",         OFFSET(xsd_strict),      AV_OPT_TYPE_BOOL, {.i64=0},  0, 1 },
1631 1632 1633
    {NULL},
};

1634
DEFINE_WRITER_CLASS(xml);
1635

1636
static av_cold int xml_init(WriterContext *wctx)
1637 1638 1639 1640 1641 1642 1643 1644 1645 1646
{
    XMLContext *xml = wctx->priv;

    if (xml->xsd_strict) {
        xml->fully_qualified = 1;
#define CHECK_COMPLIANCE(opt, opt_name)                                 \
        if (opt) {                                                      \
            av_log(wctx, AV_LOG_ERROR,                                  \
                   "XSD-compliant output selected but option '%s' was selected, XML output may be non-compliant.\n" \
                   "You need to disable such option with '-no%s'\n", opt_name, opt_name); \
1647
            return AVERROR(EINVAL);                                     \
1648 1649 1650 1651
        }
        CHECK_COMPLIANCE(show_private_data, "private");
        CHECK_COMPLIANCE(show_value_unit,   "unit");
        CHECK_COMPLIANCE(use_value_prefix,  "prefix");
1652 1653 1654 1655 1656 1657 1658

        if (do_show_frames && do_show_packets) {
            av_log(wctx, AV_LOG_ERROR,
                   "Interleaved frames and packets are not allowed in XSD. "
                   "Select only one between the -show_frames and the -show_packets options.\n");
            return AVERROR(EINVAL);
        }
1659 1660 1661 1662 1663
    }

    return 0;
}

1664
static const char *xml_escape_str(AVBPrint *dst, const char *src, void *log_ctx)
1665 1666 1667
{
    const char *p;

1668
    for (p = src; *p; p++) {
1669
        switch (*p) {
1670 1671 1672
        case '&' : av_bprintf(dst, "%s", "&amp;");  break;
        case '<' : av_bprintf(dst, "%s", "&lt;");   break;
        case '>' : av_bprintf(dst, "%s", "&gt;");   break;
1673
        case '"' : av_bprintf(dst, "%s", "&quot;"); break;
1674 1675
        case '\'': av_bprintf(dst, "%s", "&apos;"); break;
        default: av_bprint_chars(dst, *p, 1);
1676 1677 1678
        }
    }

1679
    return dst->str;
1680 1681
}

1682
#define XML_INDENT() printf("%*c", xml->indent_level * 4, ' ')
1683

1684
static void xml_print_section_header(WriterContext *wctx)
1685 1686
{
    XMLContext *xml = wctx->priv;
1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700
    const struct section *section = wctx->section[wctx->level];
    const struct section *parent_section = wctx->level ?
        wctx->section[wctx->level-1] : NULL;

    if (wctx->level == 0) {
        const char *qual = " xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' "
            "xmlns:ffprobe='http://www.ffmpeg.org/schema/ffprobe' "
            "xsi:schemaLocation='http://www.ffmpeg.org/schema/ffprobe ffprobe.xsd'";

        printf("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n");
        printf("<%sffprobe%s>\n",
               xml->fully_qualified ? "ffprobe:" : "",
               xml->fully_qualified ? qual : "");
        return;
1701 1702
    }

1703 1704 1705
    if (xml->within_tag) {
        xml->within_tag = 0;
        printf(">\n");
1706
    }
1707
    if (section->flags & SECTION_FLAG_HAS_VARIABLE_FIELDS) {
1708 1709
        xml->indent_level++;
    } else {
1710 1711 1712
        if (parent_section && (parent_section->flags & SECTION_FLAG_IS_WRAPPER) &&
            wctx->level && wctx->nb_item[wctx->level-1])
            printf("\n");
1713
        xml->indent_level++;
1714

1715 1716 1717 1718 1719 1720 1721
        if (section->flags & SECTION_FLAG_IS_ARRAY) {
            XML_INDENT(); printf("<%s>\n", section->name);
        } else {
            XML_INDENT(); printf("<%s ", section->name);
            xml->within_tag = 1;
        }
    }
1722 1723
}

1724
static void xml_print_section_footer(WriterContext *wctx)
1725 1726
{
    XMLContext *xml = wctx->priv;
1727
    const struct section *section = wctx->section[wctx->level];
1728

1729 1730 1731 1732
    if (wctx->level == 0) {
        printf("</%sffprobe>\n", xml->fully_qualified ? "ffprobe:" : "");
    } else if (xml->within_tag) {
        xml->within_tag = 0;
1733
        printf("/>\n");
1734
        xml->indent_level--;
1735
    } else if (section->flags & SECTION_FLAG_HAS_VARIABLE_FIELDS) {
1736 1737 1738 1739
        xml->indent_level--;
    } else {
        XML_INDENT(); printf("</%s>\n", section->name);
        xml->indent_level--;
1740 1741 1742 1743 1744
    }
}

static void xml_print_str(WriterContext *wctx, const char *key, const char *value)
{
1745
    AVBPrint buf;
1746 1747
    XMLContext *xml = wctx->priv;
    const struct section *section = wctx->section[wctx->level];
1748

1749
    av_bprint_init(&buf, 1, AV_BPRINT_SIZE_UNLIMITED);
1750

1751
    if (section->flags & SECTION_FLAG_HAS_VARIABLE_FIELDS) {
1752
        XML_INDENT();
1753 1754
        printf("<%s key=\"%s\"",
               section->element_name, xml_escape_str(&buf, key, wctx));
1755 1756 1757 1758 1759 1760 1761 1762
        av_bprint_clear(&buf);
        printf(" value=\"%s\"/>\n", xml_escape_str(&buf, value, wctx));
    } else {
        if (wctx->nb_item[wctx->level])
            printf(" ");
        printf("%s=\"%s\"", key, xml_escape_str(&buf, value, wctx));
    }

1763
    av_bprint_finalize(&buf, NULL);
1764 1765 1766 1767
}

static void xml_print_int(WriterContext *wctx, const char *key, long long int value)
{
1768
    if (wctx->nb_item[wctx->level])
1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780
        printf(" ");
    printf("%s=\"%lld\"", key, value);
}

static Writer xml_writer = {
    .name                 = "xml",
    .priv_size            = sizeof(XMLContext),
    .init                 = xml_init,
    .print_section_header = xml_print_section_header,
    .print_section_footer = xml_print_section_footer,
    .print_integer        = xml_print_int,
    .print_string         = xml_print_str,
1781
    .flags = WRITER_FLAG_PUT_PACKETS_AND_FRAMES_IN_SAME_CHAPTER,
1782
    .priv_class           = &xml_class,
1783 1784
};

1785 1786 1787 1788 1789 1790 1791 1792 1793
static void writer_register_all(void)
{
    static int initialized;

    if (initialized)
        return;
    initialized = 1;

    writer_register(&default_writer);
1794
    writer_register(&compact_writer);
1795
    writer_register(&csv_writer);
1796
    writer_register(&flat_writer);
1797
    writer_register(&ini_writer);
1798
    writer_register(&json_writer);
1799
    writer_register(&xml_writer);
1800 1801 1802
}

#define print_fmt(k, f, ...) do {              \
1803 1804 1805
    av_bprint_clear(&pbuf);                    \
    av_bprintf(&pbuf, f, __VA_ARGS__);         \
    writer_print_string(w, k, pbuf.str, 0);    \
1806 1807 1808
} while (0)

#define print_int(k, v)         writer_print_integer(w, k, v)
1809
#define print_q(k, v, s)        writer_print_rational(w, k, v, s)
1810
#define print_str(k, v)         writer_print_string(w, k, v, 0)
1811 1812
#define print_str_opt(k, v)     writer_print_string(w, k, v, PRINT_STRING_OPT)
#define print_str_validate(k, v) writer_print_string(w, k, v, PRINT_STRING_VALIDATE)
1813 1814 1815 1816
#define print_time(k, v, tb)    writer_print_time(w, k, v, tb, 0)
#define print_ts(k, v)          writer_print_ts(w, k, v, 0)
#define print_duration_time(k, v, tb) writer_print_time(w, k, v, tb, 1)
#define print_duration_ts(k, v)       writer_print_ts(w, k, v, 1)
1817 1818 1819 1820 1821 1822 1823
#define print_val(k, v, u) do {                                     \
    struct unit_value uv;                                           \
    uv.val.i = v;                                                   \
    uv.unit = u;                                                    \
    writer_print_string(w, k, value_string(val_str, sizeof(val_str), uv), 0); \
} while (0)

1824 1825
#define print_section_header(s) writer_print_section_header(w, s)
#define print_section_footer(s) writer_print_section_footer(w, s)
1826

1827 1828 1829 1830 1831 1832 1833 1834
#define REALLOCZ_ARRAY_STREAM(ptr, cur_n, new_n)                        \
{                                                                       \
    ret = av_reallocp_array(&(ptr), (new_n), sizeof(*(ptr)));           \
    if (ret < 0)                                                        \
        goto end;                                                       \
    memset( (ptr) + (cur_n), 0, ((new_n) - (cur_n)) * sizeof(*(ptr)) ); \
}

1835
static inline int show_tags(WriterContext *w, AVDictionary *tags, int section_id)
1836 1837
{
    AVDictionaryEntry *tag = NULL;
1838
    int ret = 0;
1839 1840

    if (!tags)
1841
        return 0;
1842
    writer_print_section_header(w, section_id);
1843 1844

    while ((tag = av_dict_get(tags, "", tag, AV_DICT_IGNORE_SUFFIX))) {
1845
        if ((ret = print_str_validate(tag->key, tag->value)) < 0)
1846 1847
            break;
    }
1848
    writer_print_section_footer(w);
1849 1850

    return ret;
1851
}
1852

1853
static void print_pkt_side_data(WriterContext *w,
1854
                                AVCodecParameters *par,
1855 1856 1857 1858 1859 1860 1861
                                const AVPacketSideData *side_data,
                                int nb_side_data,
                                SectionID id_data_list,
                                SectionID id_data)
{
    int i;

1862
    writer_print_section_header(w, id_data_list);
1863 1864 1865 1866
    for (i = 0; i < nb_side_data; i++) {
        const AVPacketSideData *sd = &side_data[i];
        const char *name = av_packet_side_data_name(sd->type);

1867
        writer_print_section_header(w, id_data);
1868 1869 1870 1871
        print_str("side_data_type", name ? name : "unknown");
        if (sd->type == AV_PKT_DATA_DISPLAYMATRIX && sd->size >= 9*4) {
            writer_print_integers(w, "displaymatrix", sd->data, 9, " %11d", 3, 4, 1);
            print_int("rotation", av_display_rotation_get((int32_t *)sd->data));
1872 1873 1874 1875
        } else if (sd->type == AV_PKT_DATA_STEREO3D) {
            const AVStereo3D *stereo = (AVStereo3D *)sd->data;
            print_str("type", av_stereo3d_type_name(stereo->type));
            print_int("inverted", !!(stereo->flags & AV_STEREO3D_FLAG_INVERT));
1876 1877
        } else if (sd->type == AV_PKT_DATA_SPHERICAL) {
            const AVSphericalMapping *spherical = (AVSphericalMapping *)sd->data;
1878 1879
            print_str("projection", av_spherical_projection_name(spherical->projection));
            if (spherical->projection == AV_SPHERICAL_CUBEMAP) {
1880 1881 1882 1883 1884 1885 1886 1887 1888
                print_int("padding", spherical->padding);
            } else if (spherical->projection == AV_SPHERICAL_EQUIRECTANGULAR_TILE) {
                size_t l, t, r, b;
                av_spherical_tile_bounds(spherical, par->width, par->height,
                                         &l, &t, &r, &b);
                print_int("bound_left", l);
                print_int("bound_top", t);
                print_int("bound_right", r);
                print_int("bound_bottom", b);
1889
            }
1890 1891 1892 1893

            print_int("yaw", (double) spherical->yaw / (1 << 16));
            print_int("pitch", (double) spherical->pitch / (1 << 16));
            print_int("roll", (double) spherical->roll / (1 << 16));
1894 1895 1896 1897 1898
        } else if (sd->type == AV_PKT_DATA_SKIP_SAMPLES && sd->size == 10) {
            print_int("skip_samples",    AV_RL32(sd->data));
            print_int("discard_padding", AV_RL32(sd->data + 4));
            print_int("skip_reason",     AV_RL8(sd->data + 8));
            print_int("discard_reason",  AV_RL8(sd->data + 9));
1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917
        } else if (sd->type == AV_PKT_DATA_MASTERING_DISPLAY_METADATA) {
            AVMasteringDisplayMetadata *metadata = (AVMasteringDisplayMetadata *)sd->data;

            if (metadata->has_primaries) {
                print_q("red_x", metadata->display_primaries[0][0], '/');
                print_q("red_y", metadata->display_primaries[0][1], '/');
                print_q("green_x", metadata->display_primaries[1][0], '/');
                print_q("green_y", metadata->display_primaries[1][1], '/');
                print_q("blue_x", metadata->display_primaries[2][0], '/');
                print_q("blue_y", metadata->display_primaries[2][1], '/');

                print_q("white_point_x", metadata->white_point[0], '/');
                print_q("white_point_y", metadata->white_point[1], '/');
            }

            if (metadata->has_luminance) {
                print_q("min_luminance", metadata->min_luminance, '/');
                print_q("max_luminance", metadata->max_luminance, '/');
            }
1918 1919 1920 1921
        } else if (sd->type == AV_PKT_DATA_CONTENT_LIGHT_LEVEL) {
            AVContentLightMetadata *metadata = (AVContentLightMetadata *)sd->data;
            print_int("max_content", metadata->MaxCLL);
            print_int("max_average", metadata->MaxFALL);
1922 1923 1924 1925 1926 1927
        }
        writer_print_section_footer(w);
    }
    writer_print_section_footer(w);
}

1928
static void print_color_range(WriterContext *w, enum AVColorRange color_range)
1929 1930 1931
{
    const char *val = av_color_range_name(color_range);
    if (!val || color_range == AVCOL_RANGE_UNSPECIFIED) {
1932
        print_str_opt("color_range", "unknown");
1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947
    } else {
        print_str("color_range", val);
    }
}

static void print_color_space(WriterContext *w, enum AVColorSpace color_space)
{
    const char *val = av_color_space_name(color_space);
    if (!val || color_space == AVCOL_SPC_UNSPECIFIED) {
        print_str_opt("color_space", "unknown");
    } else {
        print_str("color_space", val);
    }
}

1948 1949 1950 1951 1952 1953 1954 1955 1956 1957
static void print_primaries(WriterContext *w, enum AVColorPrimaries color_primaries)
{
    const char *val = av_color_primaries_name(color_primaries);
    if (!val || color_primaries == AVCOL_PRI_UNSPECIFIED) {
        print_str_opt("color_primaries", "unknown");
    } else {
        print_str("color_primaries", val);
    }
}

1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978
static void print_color_trc(WriterContext *w, enum AVColorTransferCharacteristic color_trc)
{
    const char *val = av_color_transfer_name(color_trc);
    if (!val || color_trc == AVCOL_TRC_UNSPECIFIED) {
        print_str_opt("color_transfer", "unknown");
    } else {
        print_str("color_transfer", val);
    }
}

static void print_chroma_location(WriterContext *w, enum AVChromaLocation chroma_location)
{
    const char *val = av_chroma_location_name(chroma_location);
    if (!val || chroma_location == AVCHROMA_LOC_UNSPECIFIED) {
        print_str_opt("chroma_location", "unspecified");
    } else {
        print_str("chroma_location", val);
    }
}


1979 1980 1981 1982 1983 1984 1985 1986
static void clear_log(int need_lock)
{
    int i;

    if (need_lock)
        pthread_mutex_lock(&log_mutex);
    for (i=0; i<log_buffer_size; i++) {
        av_freep(&log_buffer[i].context_name);
1987
        av_freep(&log_buffer[i].parent_name);
1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029
        av_freep(&log_buffer[i].log_message);
    }
    log_buffer_size = 0;
    if(need_lock)
        pthread_mutex_unlock(&log_mutex);
}

static int show_log(WriterContext *w, int section_ids, int section_id, int log_level)
{
    int i;
    pthread_mutex_lock(&log_mutex);
    if (!log_buffer_size) {
        pthread_mutex_unlock(&log_mutex);
        return 0;
    }
    writer_print_section_header(w, section_ids);

    for (i=0; i<log_buffer_size; i++) {
        if (log_buffer[i].log_level <= log_level) {
            writer_print_section_header(w, section_id);
            print_str("context", log_buffer[i].context_name);
            print_int("level", log_buffer[i].log_level);
            print_int("category", log_buffer[i].category);
            if (log_buffer[i].parent_name) {
                print_str("parent_context", log_buffer[i].parent_name);
                print_int("parent_category", log_buffer[i].parent_category);
            } else {
                print_str_opt("parent_context", "N/A");
                print_str_opt("parent_category", "N/A");
            }
            print_str("message", log_buffer[i].log_message);
            writer_print_section_footer(w);
        }
    }
    clear_log(0);
    pthread_mutex_unlock(&log_mutex);

    writer_print_section_footer(w);

    return 0;
}

2030
static void show_packet(WriterContext *w, InputFile *ifile, AVPacket *pkt, int packet_idx)
2031 2032
{
    char val_str[128];
2033
    AVStream *st = ifile->streams[pkt->stream_index].st;
2034
    AVBPrint pbuf;
2035
    const char *s;
2036

2037 2038
    av_bprint_init(&pbuf, 1, AV_BPRINT_SIZE_UNLIMITED);

2039 2040
    writer_print_section_header(w, SECTION_ID_PACKET);

2041
    s = av_get_media_type_string(st->codecpar->codec_type);
2042 2043
    if (s) print_str    ("codec_type", s);
    else   print_str_opt("codec_type", "unknown");
2044
    print_int("stream_index",     pkt->stream_index);
2045 2046 2047 2048
    print_ts  ("pts",             pkt->pts);
    print_time("pts_time",        pkt->pts, &st->time_base);
    print_ts  ("dts",             pkt->dts);
    print_time("dts_time",        pkt->dts, &st->time_base);
2049 2050
    print_duration_ts("duration",        pkt->duration);
    print_duration_time("duration_time", pkt->duration, &st->time_base);
2051 2052
    print_duration_ts("convergence_duration", pkt->convergence_duration);
    print_duration_time("convergence_duration_time", pkt->convergence_duration, &st->time_base);
2053
    print_val("size",             pkt->size, unit_byte_str);
2054 2055
    if (pkt->pos != -1) print_fmt    ("pos", "%"PRId64, pkt->pos);
    else                print_str_opt("pos", "N/A");
2056 2057
    print_fmt("flags", "%c%c",      pkt->flags & AV_PKT_FLAG_KEY ? 'K' : '_',
              pkt->flags & AV_PKT_FLAG_DISCARD ? 'D' : '_');
2058 2059

    if (pkt->side_data_elems) {
2060 2061 2062 2063 2064 2065 2066 2067 2068 2069
        int size;
        const uint8_t *side_metadata;

        side_metadata = av_packet_get_side_data(pkt, AV_PKT_DATA_STRINGS_METADATA, &size);
        if (side_metadata && size && do_show_packet_tags) {
            AVDictionary *dict = NULL;
            if (av_packet_unpack_dictionary(side_metadata, size, &dict) >= 0)
                show_tags(w, dict, SECTION_ID_PACKET_TAGS);
            av_dict_free(&dict);
        }
2070

2071
        print_pkt_side_data(w, st->codecpar, pkt->side_data, pkt->side_data_elems,
2072 2073
                            SECTION_ID_PACKET_SIDE_DATA_LIST,
                            SECTION_ID_PACKET_SIDE_DATA);
2074 2075
    }

2076 2077
    if (do_show_data)
        writer_print_data(w, "data", pkt->data, pkt->size);
2078
    writer_print_data_hash(w, "data_hash", pkt->data, pkt->size);
2079
    writer_print_section_footer(w);
2080

2081
    av_bprint_finalize(&pbuf, NULL);
2082
    fflush(stdout);
2083 2084
}

2085 2086 2087 2088 2089 2090 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100 2101 2102 2103 2104 2105 2106 2107
static void show_subtitle(WriterContext *w, AVSubtitle *sub, AVStream *stream,
                          AVFormatContext *fmt_ctx)
{
    AVBPrint pbuf;

    av_bprint_init(&pbuf, 1, AV_BPRINT_SIZE_UNLIMITED);

    writer_print_section_header(w, SECTION_ID_SUBTITLE);

    print_str ("media_type",         "subtitle");
    print_ts  ("pts",                 sub->pts);
    print_time("pts_time",            sub->pts, &AV_TIME_BASE_Q);
    print_int ("format",              sub->format);
    print_int ("start_display_time",  sub->start_display_time);
    print_int ("end_display_time",    sub->end_display_time);
    print_int ("num_rects",           sub->num_rects);

    writer_print_section_footer(w);

    av_bprint_finalize(&pbuf, NULL);
    fflush(stdout);
}

2108 2109
static void show_frame(WriterContext *w, AVFrame *frame, AVStream *stream,
                       AVFormatContext *fmt_ctx)
2110
{
2111
    AVBPrint pbuf;
2112
    char val_str[128];
2113
    const char *s;
2114
    int i;
2115

2116 2117
    av_bprint_init(&pbuf, 1, AV_BPRINT_SIZE_UNLIMITED);

2118
    writer_print_section_header(w, SECTION_ID_FRAME);
2119

2120
    s = av_get_media_type_string(stream->codecpar->codec_type);
2121 2122
    if (s) print_str    ("media_type", s);
    else   print_str_opt("media_type", "unknown");
2123
    print_int("stream_index",           stream->index);
2124
    print_int("key_frame",              frame->key_frame);
2125 2126
    print_ts  ("pkt_pts",               frame->pts);
    print_time("pkt_pts_time",          frame->pts, &stream->time_base);
2127 2128
    print_ts  ("pkt_dts",               frame->pkt_dts);
    print_time("pkt_dts_time",          frame->pkt_dts, &stream->time_base);
2129 2130 2131 2132 2133
    print_ts  ("best_effort_timestamp", frame->best_effort_timestamp);
    print_time("best_effort_timestamp_time", frame->best_effort_timestamp, &stream->time_base);
    print_duration_ts  ("pkt_duration",      frame->pkt_duration);
    print_duration_time("pkt_duration_time", frame->pkt_duration, &stream->time_base);
    if (frame->pkt_pos != -1) print_fmt    ("pkt_pos", "%"PRId64, frame->pkt_pos);
2134
    else                      print_str_opt("pkt_pos", "N/A");
2135
    if (frame->pkt_size != -1) print_val    ("pkt_size", frame->pkt_size, unit_byte_str);
2136
    else                       print_str_opt("pkt_size", "N/A");
2137

2138
    switch (stream->codecpar->codec_type) {
2139 2140
        AVRational sar;

2141
    case AVMEDIA_TYPE_VIDEO:
2142 2143 2144 2145 2146
        print_int("width",                  frame->width);
        print_int("height",                 frame->height);
        s = av_get_pix_fmt_name(frame->format);
        if (s) print_str    ("pix_fmt", s);
        else   print_str_opt("pix_fmt", "unknown");
2147 2148 2149
        sar = av_guess_sample_aspect_ratio(fmt_ctx, stream, frame);
        if (sar.num) {
            print_q("sample_aspect_ratio", sar, ':');
2150 2151 2152 2153 2154 2155 2156 2157 2158
        } else {
            print_str_opt("sample_aspect_ratio", "N/A");
        }
        print_fmt("pict_type",              "%c", av_get_picture_type_char(frame->pict_type));
        print_int("coded_picture_number",   frame->coded_picture_number);
        print_int("display_picture_number", frame->display_picture_number);
        print_int("interlaced_frame",       frame->interlaced_frame);
        print_int("top_field_first",        frame->top_field_first);
        print_int("repeat_pict",            frame->repeat_pict);
2159

2160
        print_color_range(w, frame->color_range);
2161
        print_color_space(w, frame->colorspace);
2162
        print_primaries(w, frame->color_primaries);
2163 2164
        print_color_trc(w, frame->color_trc);
        print_chroma_location(w, frame->chroma_location);
2165
        break;
2166 2167 2168 2169 2170 2171

    case AVMEDIA_TYPE_AUDIO:
        s = av_get_sample_fmt_name(frame->format);
        if (s) print_str    ("sample_fmt", s);
        else   print_str_opt("sample_fmt", "unknown");
        print_int("nb_samples",         frame->nb_samples);
2172 2173
        print_int("channels", frame->channels);
        if (frame->channel_layout) {
2174
            av_bprint_clear(&pbuf);
2175 2176
            av_bprint_channel_layout(&pbuf, frame->channels,
                                     frame->channel_layout);
2177 2178 2179
            print_str    ("channel_layout", pbuf.str);
        } else
            print_str_opt("channel_layout", "unknown");
2180 2181
        break;
    }
2182
    if (do_show_frame_tags)
2183
        show_tags(w, frame->metadata, SECTION_ID_FRAME_TAGS);
2184 2185
    if (do_show_log)
        show_log(w, SECTION_ID_FRAME_LOGS, SECTION_ID_FRAME_LOG, do_show_log);
2186 2187 2188 2189 2190 2191 2192 2193 2194
    if (frame->nb_side_data) {
        writer_print_section_header(w, SECTION_ID_FRAME_SIDE_DATA_LIST);
        for (i = 0; i < frame->nb_side_data; i++) {
            AVFrameSideData *sd = frame->side_data[i];
            const char *name;

            writer_print_section_header(w, SECTION_ID_FRAME_SIDE_DATA);
            name = av_frame_side_data_name(sd->type);
            print_str("side_data_type", name ? name : "unknown");
2195 2196 2197
            if (sd->type == AV_FRAME_DATA_DISPLAYMATRIX && sd->size >= 9*4) {
                writer_print_integers(w, "displaymatrix", sd->data, 9, " %11d", 3, 4, 1);
                print_int("rotation", av_display_rotation_get((int32_t *)sd->data));
2198 2199 2200 2201
            } else if (sd->type == AV_FRAME_DATA_GOP_TIMECODE && sd->size >= 8) {
                char tcbuf[AV_TIMECODE_STR_SIZE];
                av_timecode_make_mpeg_tc_string(tcbuf, *(int64_t *)(sd->data));
                print_str("timecode", tcbuf);
2202 2203 2204 2205 2206 2207 2208 2209 2210 2211 2212 2213 2214 2215 2216 2217 2218 2219 2220
            } else if (sd->type == AV_FRAME_DATA_MASTERING_DISPLAY_METADATA) {
                AVMasteringDisplayMetadata *metadata = (AVMasteringDisplayMetadata *)sd->data;

                if (metadata->has_primaries) {
                    print_q("red_x", metadata->display_primaries[0][0], '/');
                    print_q("red_y", metadata->display_primaries[0][1], '/');
                    print_q("green_x", metadata->display_primaries[1][0], '/');
                    print_q("green_y", metadata->display_primaries[1][1], '/');
                    print_q("blue_x", metadata->display_primaries[2][0], '/');
                    print_q("blue_y", metadata->display_primaries[2][1], '/');

                    print_q("white_point_x", metadata->white_point[0], '/');
                    print_q("white_point_y", metadata->white_point[1], '/');
                }

                if (metadata->has_luminance) {
                    print_q("min_luminance", metadata->min_luminance, '/');
                    print_q("max_luminance", metadata->max_luminance, '/');
                }
2221 2222 2223 2224
            } else if (sd->type == AV_FRAME_DATA_CONTENT_LIGHT_LEVEL) {
                AVContentLightMetadata *metadata = (AVContentLightMetadata *)sd->data;
                print_int("max_content", metadata->MaxCLL);
                print_int("max_average", metadata->MaxFALL);
2225 2226 2227 2228 2229
            } else if (sd->type == AV_FRAME_DATA_ICC_PROFILE) {
                AVDictionaryEntry *tag = av_dict_get(sd->metadata, "name", NULL, AV_DICT_MATCH_CASE);
                if (tag)
                    print_str(tag->key, tag->value);
                print_int("size", sd->size);
2230
            }
2231 2232 2233 2234
            writer_print_section_footer(w);
        }
        writer_print_section_footer(w);
    }
2235

2236
    writer_print_section_footer(w);
2237

2238
    av_bprint_finalize(&pbuf, NULL);
2239 2240 2241
    fflush(stdout);
}

2242
static av_always_inline int process_frame(WriterContext *w,
2243
                                          InputFile *ifile,
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2244 2245
                                          AVFrame *frame, AVPacket *pkt,
                                          int *packet_new)
2246
{
2247 2248 2249
    AVFormatContext *fmt_ctx = ifile->fmt_ctx;
    AVCodecContext *dec_ctx = ifile->streams[pkt->stream_index].dec_ctx;
    AVCodecParameters *par = ifile->streams[pkt->stream_index].st->codecpar;
2250
    AVSubtitle sub;
2251
    int ret = 0, got_frame = 0;
2252

2253
    clear_log(1);
2254
    if (dec_ctx && dec_ctx->codec) {
2255
        switch (par->codec_type) {
2256 2257
        case AVMEDIA_TYPE_VIDEO:
        case AVMEDIA_TYPE_AUDIO:
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2258 2259 2260 2261 2262 2263 2264 2265 2266 2267 2268 2269 2270 2271 2272 2273 2274
            if (*packet_new) {
                ret = avcodec_send_packet(dec_ctx, pkt);
                if (ret == AVERROR(EAGAIN)) {
                    ret = 0;
                } else if (ret >= 0 || ret == AVERROR_EOF) {
                    ret = 0;
                    *packet_new = 0;
                }
            }
            if (ret >= 0) {
                ret = avcodec_receive_frame(dec_ctx, frame);
                if (ret >= 0) {
                    got_frame = 1;
                } else if (ret == AVERROR(EAGAIN) || ret == AVERROR_EOF) {
                    ret = 0;
                }
            }
2275
            break;
2276 2277

        case AVMEDIA_TYPE_SUBTITLE:
2278 2279
            if (*packet_new)
                ret = avcodec_decode_subtitle2(dec_ctx, &sub, &got_frame, pkt);
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2280
            *packet_new = 0;
2281
            break;
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2282 2283
        default:
            *packet_new = 0;
2284
        }
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2285 2286
    } else {
        *packet_new = 0;
2287
    }
2288

2289 2290 2291
    if (ret < 0)
        return ret;
    if (got_frame) {
2292
        int is_sub = (par->codec_type == AVMEDIA_TYPE_SUBTITLE);
2293 2294
        nb_streams_frames[pkt->stream_index]++;
        if (do_show_frames)
2295
            if (is_sub)
2296
                show_subtitle(w, &sub, ifile->streams[pkt->stream_index].st, fmt_ctx);
2297
            else
2298
                show_frame(w, frame, ifile->streams[pkt->stream_index].st, fmt_ctx);
2299 2300
        if (is_sub)
            avsubtitle_free(&sub);
2301
    }
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2302
    return got_frame || *packet_new;
2303 2304
}

2305 2306 2307 2308 2309 2310 2311 2312 2313 2314 2315 2316 2317 2318 2319 2320 2321 2322 2323 2324 2325 2326 2327 2328
static void log_read_interval(const ReadInterval *interval, void *log_ctx, int log_level)
{
    av_log(log_ctx, log_level, "id:%d", interval->id);

    if (interval->has_start) {
        av_log(log_ctx, log_level, " start:%s%s", interval->start_is_offset ? "+" : "",
               av_ts2timestr(interval->start, &AV_TIME_BASE_Q));
    } else {
        av_log(log_ctx, log_level, " start:N/A");
    }

    if (interval->has_end) {
        av_log(log_ctx, log_level, " end:%s", interval->end_is_offset ? "+" : "");
        if (interval->duration_frames)
            av_log(log_ctx, log_level, "#%"PRId64, interval->end);
        else
            av_log(log_ctx, log_level, "%s", av_ts2timestr(interval->end, &AV_TIME_BASE_Q));
    } else {
        av_log(log_ctx, log_level, " end:N/A");
    }

    av_log(log_ctx, log_level, "\n");
}

2329
static int read_interval_packets(WriterContext *w, InputFile *ifile,
2330
                                 const ReadInterval *interval, int64_t *cur_ts)
2331
{
2332
    AVFormatContext *fmt_ctx = ifile->fmt_ctx;
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2333
    AVPacket pkt;
2334
    AVFrame *frame = NULL;
2335
    int ret = 0, i = 0, frame_count = 0;
2336
    int64_t start = -INT64_MAX, end = interval->end;
2337
    int has_start = 0, has_end = interval->has_end && !interval->end_is_offset;
2338 2339 2340

    av_init_packet(&pkt);

2341 2342 2343 2344 2345 2346 2347 2348 2349 2350 2351 2352 2353 2354 2355 2356 2357 2358 2359 2360 2361 2362 2363 2364 2365 2366 2367
    av_log(NULL, AV_LOG_VERBOSE, "Processing read interval ");
    log_read_interval(interval, NULL, AV_LOG_VERBOSE);

    if (interval->has_start) {
        int64_t target;
        if (interval->start_is_offset) {
            if (*cur_ts == AV_NOPTS_VALUE) {
                av_log(NULL, AV_LOG_ERROR,
                       "Could not seek to relative position since current "
                       "timestamp is not defined\n");
                ret = AVERROR(EINVAL);
                goto end;
            }
            target = *cur_ts + interval->start;
        } else {
            target = interval->start;
        }

        av_log(NULL, AV_LOG_VERBOSE, "Seeking to read interval start point %s\n",
               av_ts2timestr(target, &AV_TIME_BASE_Q));
        if ((ret = avformat_seek_file(fmt_ctx, -1, -INT64_MAX, target, INT64_MAX, 0)) < 0) {
            av_log(NULL, AV_LOG_ERROR, "Could not seek to position %"PRId64": %s\n",
                   interval->start, av_err2str(ret));
            goto end;
        }
    }

2368
    frame = av_frame_alloc();
2369 2370 2371 2372
    if (!frame) {
        ret = AVERROR(ENOMEM);
        goto end;
    }
2373
    while (!av_read_frame(fmt_ctx, &pkt)) {
2374
        if (fmt_ctx->nb_streams > nb_streams) {
2375 2376 2377
            REALLOCZ_ARRAY_STREAM(nb_streams_frames,  nb_streams, fmt_ctx->nb_streams);
            REALLOCZ_ARRAY_STREAM(nb_streams_packets, nb_streams, fmt_ctx->nb_streams);
            REALLOCZ_ARRAY_STREAM(selected_streams,   nb_streams, fmt_ctx->nb_streams);
2378
            nb_streams = fmt_ctx->nb_streams;
2379
        }
2380
        if (selected_streams[pkt.stream_index]) {
2381
            AVRational tb = ifile->streams[pkt.stream_index].st->time_base;
2382 2383 2384 2385 2386 2387 2388 2389 2390 2391 2392 2393 2394 2395 2396 2397 2398 2399 2400 2401 2402 2403

            if (pkt.pts != AV_NOPTS_VALUE)
                *cur_ts = av_rescale_q(pkt.pts, tb, AV_TIME_BASE_Q);

            if (!has_start && *cur_ts != AV_NOPTS_VALUE) {
                start = *cur_ts;
                has_start = 1;
            }

            if (has_start && !has_end && interval->end_is_offset) {
                end = start + interval->end;
                has_end = 1;
            }

            if (interval->end_is_offset && interval->duration_frames) {
                if (frame_count >= interval->end)
                    break;
            } else if (has_end && *cur_ts != AV_NOPTS_VALUE && *cur_ts >= end) {
                break;
            }

            frame_count++;
2404 2405
            if (do_read_packets) {
                if (do_show_packets)
2406
                    show_packet(w, ifile, &pkt, i++);
2407 2408 2409
                nb_streams_packets[pkt.stream_index]++;
            }
            if (do_read_frames) {
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2410 2411
                int packet_new = 1;
                while (process_frame(w, ifile, frame, &pkt, &packet_new) > 0);
2412
            }
2413
        }
2414
        av_packet_unref(&pkt);
2415 2416 2417 2418 2419 2420 2421
    }
    av_init_packet(&pkt);
    pkt.data = NULL;
    pkt.size = 0;
    //Flush remaining frames that are cached in the decoder
    for (i = 0; i < fmt_ctx->nb_streams; i++) {
        pkt.stream_index = i;
2422
        if (do_read_frames)
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2423
            while (process_frame(w, ifile, frame, &pkt, &(int){1}) > 0);
2424
    }
2425 2426

end:
2427
    av_frame_free(&frame);
2428 2429 2430 2431 2432 2433 2434
    if (ret < 0) {
        av_log(NULL, AV_LOG_ERROR, "Could not read packets in interval ");
        log_read_interval(interval, NULL, AV_LOG_ERROR);
    }
    return ret;
}

2435
static int read_packets(WriterContext *w, InputFile *ifile)
2436
{
2437
    AVFormatContext *fmt_ctx = ifile->fmt_ctx;
2438 2439 2440 2441 2442
    int i, ret = 0;
    int64_t cur_ts = fmt_ctx->start_time;

    if (read_intervals_nb == 0) {
        ReadInterval interval = (ReadInterval) { .has_start = 0, .has_end = 0 };
2443
        ret = read_interval_packets(w, ifile, &interval, &cur_ts);
2444 2445
    } else {
        for (i = 0; i < read_intervals_nb; i++) {
2446
            ret = read_interval_packets(w, ifile, &read_intervals[i], &cur_ts);
2447 2448 2449 2450
            if (ret < 0)
                break;
        }
    }
2451 2452

    return ret;
2453 2454
}

2455
static int show_stream(WriterContext *w, AVFormatContext *fmt_ctx, int stream_idx, InputStream *ist, int in_program)
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2456
{
2457 2458
    AVStream *stream = ist->st;
    AVCodecParameters *par;
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2459 2460
    AVCodecContext *dec_ctx;
    char val_str[128];
2461
    const char *s;
2462
    AVRational sar, dar;
2463
    AVBPrint pbuf;
2464
    const AVCodecDescriptor *cd;
2465
    int ret = 0;
2466
    const char *profile = NULL;
2467 2468

    av_bprint_init(&pbuf, 1, AV_BPRINT_SIZE_UNLIMITED);
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2469

2470
    writer_print_section_header(w, in_program ? SECTION_ID_PROGRAM_STREAM : SECTION_ID_STREAM);
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2471

2472
    print_int("index", stream->index);
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2473

2474 2475 2476
    par     = stream->codecpar;
    dec_ctx = ist->dec_ctx;
    if (cd = avcodec_descriptor_get(par->codec_id)) {
2477
        print_str("codec_name", cd->name);
2478
        if (!do_bitexact) {
2479 2480
            print_str("codec_long_name",
                      cd->long_name ? cd->long_name : "unknown");
2481
        }
2482 2483 2484 2485 2486 2487
    } else {
        print_str_opt("codec_name", "unknown");
        if (!do_bitexact) {
            print_str_opt("codec_long_name", "unknown");
        }
    }
2488

2489
    if (!do_bitexact && (profile = avcodec_profile_name(par->codec_id, par->profile)))
2490 2491
        print_str("profile", profile);
    else {
2492
        if (par->profile != FF_PROFILE_UNKNOWN) {
2493
            char profile_num[12];
2494
            snprintf(profile_num, sizeof(profile_num), "%d", par->profile);
2495 2496 2497 2498
            print_str("profile", profile_num);
        } else
            print_str_opt("profile", "unknown");
    }
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2499

2500
    s = av_get_media_type_string(par->codec_type);
2501 2502
    if (s) print_str    ("codec_type", s);
    else   print_str_opt("codec_type", "unknown");
2503
#if FF_API_LAVF_AVCTX
2504 2505
    if (dec_ctx)
        print_q("codec_time_base", dec_ctx->time_base, '/');
2506
#endif
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2507

2508
    /* print AVI/FourCC tag */
2509
    print_str("codec_tag_string",    av_fourcc2str(par->codec_tag));
2510
    print_fmt("codec_tag", "0x%04"PRIx32, par->codec_tag);
2511

2512
    switch (par->codec_type) {
2513
    case AVMEDIA_TYPE_VIDEO:
2514 2515
        print_int("width",        par->width);
        print_int("height",       par->height);
2516
#if FF_API_LAVF_AVCTX
2517 2518 2519 2520
        if (dec_ctx) {
            print_int("coded_width",  dec_ctx->coded_width);
            print_int("coded_height", dec_ctx->coded_height);
        }
2521
#endif
2522
        print_int("has_b_frames", par->video_delay);
2523
        sar = av_guess_sample_aspect_ratio(fmt_ctx, stream, NULL);
2524
        if (sar.num) {
2525 2526
            print_q("sample_aspect_ratio", sar, ':');
            av_reduce(&dar.num, &dar.den,
2527 2528
                      par->width  * sar.num,
                      par->height * sar.den,
2529 2530 2531 2532 2533 2534
                      1024*1024);
            print_q("display_aspect_ratio", dar, ':');
        } else {
            print_str_opt("sample_aspect_ratio", "N/A");
            print_str_opt("display_aspect_ratio", "N/A");
        }
2535
        s = av_get_pix_fmt_name(par->format);
2536 2537
        if (s) print_str    ("pix_fmt", s);
        else   print_str_opt("pix_fmt", "unknown");
2538
        print_int("level",   par->level);
2539

2540
        print_color_range(w, par->color_range);
2541 2542
        print_color_space(w, par->color_space);
        print_color_trc(w, par->color_trc);
2543
        print_primaries(w, par->color_primaries);
2544
        print_chroma_location(w, par->chroma_location);
2545

2546 2547 2548 2549 2550 2551 2552 2553 2554 2555 2556 2557 2558
        if (par->field_order == AV_FIELD_PROGRESSIVE)
            print_str("field_order", "progressive");
        else if (par->field_order == AV_FIELD_TT)
            print_str("field_order", "tt");
        else if (par->field_order == AV_FIELD_BB)
            print_str("field_order", "bb");
        else if (par->field_order == AV_FIELD_TB)
            print_str("field_order", "tb");
        else if (par->field_order == AV_FIELD_BT)
            print_str("field_order", "bt");
        else
            print_str_opt("field_order", "unknown");

2559
#if FF_API_PRIVATE_OPT
2560
        if (dec_ctx && dec_ctx->timecode_frame_start >= 0) {
2561 2562 2563 2564 2565 2566
            char tcbuf[AV_TIMECODE_STR_SIZE];
            av_timecode_make_mpeg_tc_string(tcbuf, dec_ctx->timecode_frame_start);
            print_str("timecode", tcbuf);
        } else {
            print_str_opt("timecode", "N/A");
        }
2567
#endif
2568 2569
        if (dec_ctx)
            print_int("refs", dec_ctx->refs);
2570
        break;
2571

2572
    case AVMEDIA_TYPE_AUDIO:
2573
        s = av_get_sample_fmt_name(par->format);
2574 2575
        if (s) print_str    ("sample_fmt", s);
        else   print_str_opt("sample_fmt", "unknown");
2576 2577
        print_val("sample_rate",     par->sample_rate, unit_hertz_str);
        print_int("channels",        par->channels);
2578

2579
        if (par->channel_layout) {
2580
            av_bprint_clear(&pbuf);
2581
            av_bprint_channel_layout(&pbuf, par->channels, par->channel_layout);
2582 2583 2584
            print_str    ("channel_layout", pbuf.str);
        } else {
            print_str_opt("channel_layout", "unknown");
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2585
        }
2586

2587
        print_int("bits_per_sample", av_get_bits_per_sample(par->codec_id));
2588 2589 2590
        break;

    case AVMEDIA_TYPE_SUBTITLE:
2591 2592
        if (par->width)
            print_int("width",       par->width);
2593 2594
        else
            print_str_opt("width",   "N/A");
2595 2596
        if (par->height)
            print_int("height",      par->height);
2597 2598 2599
        else
            print_str_opt("height",  "N/A");
        break;
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2600
    }
2601

2602
    if (dec_ctx && dec_ctx->codec && dec_ctx->codec->priv_class && show_private_data) {
2603
        const AVOption *opt = NULL;
2604 2605 2606 2607 2608 2609 2610 2611 2612
        while (opt = av_opt_next(dec_ctx->priv_data,opt)) {
            uint8_t *str;
            if (opt->flags) continue;
            if (av_opt_get(dec_ctx->priv_data, opt->name, 0, &str) >= 0) {
                print_str(opt->name, str);
                av_free(str);
            }
        }
    }
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2613

2614 2615
    if (fmt_ctx->iformat->flags & AVFMT_SHOW_IDS) print_fmt    ("id", "0x%x", stream->id);
    else                                          print_str_opt("id", "N/A");
2616 2617 2618
    print_q("r_frame_rate",   stream->r_frame_rate,   '/');
    print_q("avg_frame_rate", stream->avg_frame_rate, '/');
    print_q("time_base",      stream->time_base,      '/');
2619 2620 2621 2622
    print_ts  ("start_pts",   stream->start_time);
    print_time("start_time",  stream->start_time, &stream->time_base);
    print_ts  ("duration_ts", stream->duration);
    print_time("duration",    stream->duration, &stream->time_base);
2623
    if (par->bit_rate > 0)     print_val    ("bit_rate", par->bit_rate, unit_bit_per_second_str);
2624
    else                       print_str_opt("bit_rate", "N/A");
2625 2626 2627 2628 2629 2630
#if FF_API_LAVF_AVCTX
    if (stream->codec->rc_max_rate > 0) print_val ("max_bit_rate", stream->codec->rc_max_rate, unit_bit_per_second_str);
    else                                print_str_opt("max_bit_rate", "N/A");
#endif
    if (dec_ctx && dec_ctx->bits_per_raw_sample > 0) print_fmt("bits_per_raw_sample", "%d", dec_ctx->bits_per_raw_sample);
    else                                             print_str_opt("bits_per_raw_sample", "N/A");
2631 2632
    if (stream->nb_frames) print_fmt    ("nb_frames", "%"PRId64, stream->nb_frames);
    else                   print_str_opt("nb_frames", "N/A");
2633 2634 2635 2636
    if (nb_streams_frames[stream_idx])  print_fmt    ("nb_read_frames", "%"PRIu64, nb_streams_frames[stream_idx]);
    else                                print_str_opt("nb_read_frames", "N/A");
    if (nb_streams_packets[stream_idx]) print_fmt    ("nb_read_packets", "%"PRIu64, nb_streams_packets[stream_idx]);
    else                                print_str_opt("nb_read_packets", "N/A");
2637
    if (do_show_data)
2638 2639 2640 2641
        writer_print_data(w, "extradata", par->extradata,
                                          par->extradata_size);
    writer_print_data_hash(w, "extradata_hash", par->extradata,
                                                par->extradata_size);
2642 2643 2644 2645 2646 2647

    /* Print disposition information */
#define PRINT_DISPOSITION(flagname, name) do {                                \
        print_int(name, !!(stream->disposition & AV_DISPOSITION_##flagname)); \
    } while (0)

2648
    if (do_show_stream_disposition) {
2649 2650 2651 2652 2653 2654 2655 2656 2657 2658 2659 2660 2661 2662
        writer_print_section_header(w, in_program ? SECTION_ID_PROGRAM_STREAM_DISPOSITION : SECTION_ID_STREAM_DISPOSITION);
        PRINT_DISPOSITION(DEFAULT,          "default");
        PRINT_DISPOSITION(DUB,              "dub");
        PRINT_DISPOSITION(ORIGINAL,         "original");
        PRINT_DISPOSITION(COMMENT,          "comment");
        PRINT_DISPOSITION(LYRICS,           "lyrics");
        PRINT_DISPOSITION(KARAOKE,          "karaoke");
        PRINT_DISPOSITION(FORCED,           "forced");
        PRINT_DISPOSITION(HEARING_IMPAIRED, "hearing_impaired");
        PRINT_DISPOSITION(VISUAL_IMPAIRED,  "visual_impaired");
        PRINT_DISPOSITION(CLEAN_EFFECTS,    "clean_effects");
        PRINT_DISPOSITION(ATTACHED_PIC,     "attached_pic");
        PRINT_DISPOSITION(TIMED_THUMBNAILS, "timed_thumbnails");
        writer_print_section_footer(w);
2663
    }
2664

2665 2666
    if (do_show_stream_tags)
        ret = show_tags(w, stream->metadata, in_program ? SECTION_ID_PROGRAM_STREAM_TAGS : SECTION_ID_STREAM_TAGS);
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2667

2668
    if (stream->nb_side_data) {
2669
        print_pkt_side_data(w, stream->codecpar, stream->side_data, stream->nb_side_data,
2670 2671
                            SECTION_ID_STREAM_SIDE_DATA_LIST,
                            SECTION_ID_STREAM_SIDE_DATA);
2672 2673
    }

2674
    writer_print_section_footer(w);
2675
    av_bprint_finalize(&pbuf, NULL);
2676
    fflush(stdout);
2677 2678

    return ret;
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2679 2680
}

2681
static int show_streams(WriterContext *w, InputFile *ifile)
2682
{
2683
    AVFormatContext *fmt_ctx = ifile->fmt_ctx;
2684 2685
    int i, ret = 0;

2686
    writer_print_section_header(w, SECTION_ID_STREAMS);
2687
    for (i = 0; i < ifile->nb_streams; i++)
2688
        if (selected_streams[i]) {
2689
            ret = show_stream(w, fmt_ctx, i, &ifile->streams[i], 0);
2690 2691 2692
            if (ret < 0)
                break;
        }
2693
    writer_print_section_footer(w);
2694 2695

    return ret;
2696 2697
}

2698
static int show_program(WriterContext *w, InputFile *ifile, AVProgram *program)
2699
{
2700
    AVFormatContext *fmt_ctx = ifile->fmt_ctx;
2701
    int i, ret = 0;
2702 2703 2704 2705 2706 2707 2708 2709 2710 2711 2712

    writer_print_section_header(w, SECTION_ID_PROGRAM);
    print_int("program_id", program->id);
    print_int("program_num", program->program_num);
    print_int("nb_streams", program->nb_stream_indexes);
    print_int("pmt_pid", program->pmt_pid);
    print_int("pcr_pid", program->pcr_pid);
    print_ts("start_pts", program->start_time);
    print_time("start_time", program->start_time, &AV_TIME_BASE_Q);
    print_ts("end_pts", program->end_time);
    print_time("end_time", program->end_time, &AV_TIME_BASE_Q);
2713 2714
    if (do_show_program_tags)
        ret = show_tags(w, program->metadata, SECTION_ID_PROGRAM_TAGS);
2715 2716
    if (ret < 0)
        goto end;
2717 2718 2719

    writer_print_section_header(w, SECTION_ID_PROGRAM_STREAMS);
    for (i = 0; i < program->nb_stream_indexes; i++) {
2720
        if (selected_streams[program->stream_index[i]]) {
2721
            ret = show_stream(w, fmt_ctx, program->stream_index[i], &ifile->streams[program->stream_index[i]], 1);
2722 2723 2724
            if (ret < 0)
                break;
        }
2725 2726 2727
    }
    writer_print_section_footer(w);

2728
end:
2729
    writer_print_section_footer(w);
2730
    return ret;
2731 2732
}

2733
static int show_programs(WriterContext *w, InputFile *ifile)
2734
{
2735
    AVFormatContext *fmt_ctx = ifile->fmt_ctx;
2736
    int i, ret = 0;
2737 2738 2739 2740 2741 2742

    writer_print_section_header(w, SECTION_ID_PROGRAMS);
    for (i = 0; i < fmt_ctx->nb_programs; i++) {
        AVProgram *program = fmt_ctx->programs[i];
        if (!program)
            continue;
2743
        ret = show_program(w, ifile, program);
2744 2745
        if (ret < 0)
            break;
2746
    }
2747
    writer_print_section_footer(w);
2748
    return ret;
2749 2750
}

2751
static int show_chapters(WriterContext *w, InputFile *ifile)
2752
{
2753
    AVFormatContext *fmt_ctx = ifile->fmt_ctx;
2754
    int i, ret = 0;
2755 2756 2757 2758 2759 2760 2761 2762 2763 2764 2765 2766

    writer_print_section_header(w, SECTION_ID_CHAPTERS);
    for (i = 0; i < fmt_ctx->nb_chapters; i++) {
        AVChapter *chapter = fmt_ctx->chapters[i];

        writer_print_section_header(w, SECTION_ID_CHAPTER);
        print_int("id", chapter->id);
        print_q  ("time_base", chapter->time_base, '/');
        print_int("start", chapter->start);
        print_time("start_time", chapter->start, &chapter->time_base);
        print_int("end", chapter->end);
        print_time("end_time", chapter->end, &chapter->time_base);
2767 2768
        if (do_show_chapter_tags)
            ret = show_tags(w, chapter->metadata, SECTION_ID_CHAPTER_TAGS);
2769 2770 2771
        writer_print_section_footer(w);
    }
    writer_print_section_footer(w);
2772 2773

    return ret;
2774 2775
}

2776
static int show_format(WriterContext *w, InputFile *ifile)
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2777
{
2778
    AVFormatContext *fmt_ctx = ifile->fmt_ctx;
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2779
    char val_str[128];
2780
    int64_t size = fmt_ctx->pb ? avio_size(fmt_ctx->pb) : -1;
2781
    int ret = 0;
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2782

2783
    writer_print_section_header(w, SECTION_ID_FORMAT);
2784
    print_str_validate("filename", fmt_ctx->url);
2785
    print_int("nb_streams",       fmt_ctx->nb_streams);
2786
    print_int("nb_programs",      fmt_ctx->nb_programs);
2787
    print_str("format_name",      fmt_ctx->iformat->name);
2788
    if (!do_bitexact) {
2789 2790
        if (fmt_ctx->iformat->long_name) print_str    ("format_long_name", fmt_ctx->iformat->long_name);
        else                             print_str_opt("format_long_name", "unknown");
2791
    }
2792 2793
    print_time("start_time",      fmt_ctx->start_time, &AV_TIME_BASE_Q);
    print_time("duration",        fmt_ctx->duration,   &AV_TIME_BASE_Q);
2794 2795 2796 2797
    if (size >= 0) print_val    ("size", size, unit_byte_str);
    else           print_str_opt("size", "N/A");
    if (fmt_ctx->bit_rate > 0) print_val    ("bit_rate", fmt_ctx->bit_rate, unit_bit_per_second_str);
    else                       print_str_opt("bit_rate", "N/A");
2798
    print_int("probe_score", fmt_ctx->probe_score);
2799 2800
    if (do_show_format_tags)
        ret = show_tags(w, fmt_ctx->metadata, SECTION_ID_FORMAT_TAGS);
2801 2802

    writer_print_section_footer(w);
2803
    fflush(stdout);
2804
    return ret;
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2805 2806
}

2807 2808 2809 2810 2811 2812 2813 2814
static void show_error(WriterContext *w, int err)
{
    char errbuf[128];
    const char *errbuf_ptr = errbuf;

    if (av_strerror(err, errbuf, sizeof(errbuf)) < 0)
        errbuf_ptr = strerror(AVUNERROR(err));

2815
    writer_print_section_header(w, SECTION_ID_ERROR);
2816 2817
    print_int("code", err);
    print_str("string", errbuf_ptr);
2818
    writer_print_section_footer(w);
2819 2820
}

2821
static int open_input_file(InputFile *ifile, const char *filename)
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2822
{
2823
    int err, i;
2824 2825
    AVFormatContext *fmt_ctx = NULL;
    AVDictionaryEntry *t;
2826
    int scan_all_pmts_set = 0;
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2827

2828 2829 2830 2831 2832 2833
    fmt_ctx = avformat_alloc_context();
    if (!fmt_ctx) {
        print_error(filename, AVERROR(ENOMEM));
        exit_program(1);
    }

2834 2835 2836 2837
    if (!av_dict_get(format_opts, "scan_all_pmts", NULL, AV_DICT_MATCH_CASE)) {
        av_dict_set(&format_opts, "scan_all_pmts", "1", AV_DICT_DONT_OVERWRITE);
        scan_all_pmts_set = 1;
    }
2838 2839
    if ((err = avformat_open_input(&fmt_ctx, filename,
                                   iformat, &format_opts)) < 0) {
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2840 2841 2842
        print_error(filename, err);
        return err;
    }
2843
    ifile->fmt_ctx = fmt_ctx;
2844 2845
    if (scan_all_pmts_set)
        av_dict_set(&format_opts, "scan_all_pmts", NULL, AV_DICT_MATCH_CASE);
2846 2847 2848 2849 2850
    if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
        av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
        return AVERROR_OPTION_NOT_FOUND;
    }

2851 2852 2853
    if (find_stream_info) {
        AVDictionary **opts = setup_find_stream_info_opts(fmt_ctx, codec_opts);
        int orig_nb_streams = fmt_ctx->nb_streams;
2854

2855
        err = avformat_find_stream_info(fmt_ctx, opts);
2856

2857 2858 2859
        for (i = 0; i < orig_nb_streams; i++)
            av_dict_free(&opts[i]);
        av_freep(&opts);
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2860

2861 2862 2863 2864
        if (err < 0) {
            print_error(filename, err);
            return err;
        }
2865
    }
2866

2867
    av_dump_format(fmt_ctx, 0, filename, 0);
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2868

2869 2870 2871 2872 2873 2874
    ifile->streams = av_mallocz_array(fmt_ctx->nb_streams,
                                      sizeof(*ifile->streams));
    if (!ifile->streams)
        exit(1);
    ifile->nb_streams = fmt_ctx->nb_streams;

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2875 2876
    /* bind a decoder to each input stream */
    for (i = 0; i < fmt_ctx->nb_streams; i++) {
2877
        InputStream *ist = &ifile->streams[i];
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2878 2879 2880
        AVStream *stream = fmt_ctx->streams[i];
        AVCodec *codec;

2881 2882
        ist->st = stream;

2883
        if (stream->codecpar->codec_id == AV_CODEC_ID_PROBE) {
2884
            av_log(NULL, AV_LOG_WARNING,
2885 2886
                   "Failed to probe codec for input stream %d\n",
                    stream->index);
2887 2888 2889 2890 2891
            continue;
        }

        codec = avcodec_find_decoder(stream->codecpar->codec_id);
        if (!codec) {
2892
            av_log(NULL, AV_LOG_WARNING,
2893
                    "Unsupported codec with id %d for input stream %d\n",
2894 2895 2896 2897 2898
                    stream->codecpar->codec_id, stream->index);
            continue;
        }
        {
            AVDictionary *opts = filter_codec_opts(codec_opts, stream->codecpar->codec_id,
2899
                                                   fmt_ctx, stream, codec);
2900 2901 2902 2903 2904 2905 2906 2907 2908

            ist->dec_ctx = avcodec_alloc_context3(codec);
            if (!ist->dec_ctx)
                exit(1);

            err = avcodec_parameters_to_context(ist->dec_ctx, stream->codecpar);
            if (err < 0)
                exit(1);

2909 2910 2911 2912 2913 2914 2915
            if (do_show_log) {
                // For loging it is needed to disable at least frame threads as otherwise
                // the log information would need to be reordered and matches up to contexts and frames
                // That is in fact possible but not trivial
                av_dict_set(&codec_opts, "threads", "1", 0);
            }

2916
            ist->dec_ctx->pkt_timebase = stream->time_base;
2917
            ist->dec_ctx->framerate = stream->avg_frame_rate;
2918 2919 2920 2921
#if FF_API_LAVF_AVCTX
            ist->dec_ctx->coded_width = stream->codec->coded_width;
            ist->dec_ctx->coded_height = stream->codec->coded_height;
#endif
2922 2923

            if (avcodec_open2(ist->dec_ctx, codec, &opts) < 0) {
2924
                av_log(NULL, AV_LOG_WARNING, "Could not open codec for input stream %d\n",
2925
                       stream->index);
2926
                exit(1);
2927
            }
2928

2929 2930 2931 2932 2933
            if ((t = av_dict_get(opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
                av_log(NULL, AV_LOG_ERROR, "Option %s for input stream %d not found\n",
                       t->key, stream->index);
                return AVERROR_OPTION_NOT_FOUND;
            }
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2934 2935 2936
        }
    }

2937
    ifile->fmt_ctx = fmt_ctx;
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2938 2939 2940
    return 0;
}

2941
static void close_input_file(InputFile *ifile)
2942 2943 2944 2945
{
    int i;

    /* close decoder for each stream */
2946 2947 2948
    for (i = 0; i < ifile->nb_streams; i++)
        if (ifile->streams[i].st->codecpar->codec_id != AV_CODEC_ID_NONE)
            avcodec_free_context(&ifile->streams[i].dec_ctx);
2949

2950 2951 2952
    av_freep(&ifile->streams);
    ifile->nb_streams = 0;

2953
    avformat_close_input(&ifile->fmt_ctx);
2954 2955
}

2956
static int probe_file(WriterContext *wctx, const char *filename)
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2957
{
2958
    InputFile ifile = { 0 };
2959
    int ret, i;
2960
    int section_id;
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2961

2962 2963 2964
    do_read_frames = do_show_frames || do_count_frames;
    do_read_packets = do_show_packets || do_count_packets;

2965
    ret = open_input_file(&ifile, filename);
2966
    if (ret < 0)
2967
        goto end;
2968

2969 2970
#define CHECK_END if (ret < 0) goto end

2971 2972 2973 2974
    nb_streams = ifile.fmt_ctx->nb_streams;
    REALLOCZ_ARRAY_STREAM(nb_streams_frames,0,ifile.fmt_ctx->nb_streams);
    REALLOCZ_ARRAY_STREAM(nb_streams_packets,0,ifile.fmt_ctx->nb_streams);
    REALLOCZ_ARRAY_STREAM(selected_streams,0,ifile.fmt_ctx->nb_streams);
2975

2976
    for (i = 0; i < ifile.fmt_ctx->nb_streams; i++) {
2977
        if (stream_specifier) {
2978 2979
            ret = avformat_match_stream_specifier(ifile.fmt_ctx,
                                                  ifile.fmt_ctx->streams[i],
2980
                                                  stream_specifier);
2981
            CHECK_END;
2982 2983 2984 2985 2986
            else
                selected_streams[i] = ret;
            ret = 0;
        } else {
            selected_streams[i] = 1;
2987
        }
2988 2989
        if (!selected_streams[i])
            ifile.fmt_ctx->streams[i]->discard = AVDISCARD_ALL;
2990 2991 2992 2993 2994 2995 2996 2997 2998 2999 3000 3001
    }

    if (do_read_frames || do_read_packets) {
        if (do_show_frames && do_show_packets &&
            wctx->writer->flags & WRITER_FLAG_PUT_PACKETS_AND_FRAMES_IN_SAME_CHAPTER)
            section_id = SECTION_ID_PACKETS_AND_FRAMES;
        else if (do_show_packets && !do_show_frames)
            section_id = SECTION_ID_PACKETS;
        else // (!do_show_packets && do_show_frames)
            section_id = SECTION_ID_FRAMES;
        if (do_show_frames || do_show_packets)
            writer_print_section_header(wctx, section_id);
3002
        ret = read_packets(wctx, &ifile);
3003 3004
        if (do_show_frames || do_show_packets)
            writer_print_section_footer(wctx);
3005 3006
        CHECK_END;
    }
3007

3008
    if (do_show_programs) {
3009
        ret = show_programs(wctx, &ifile);
3010 3011 3012 3013
        CHECK_END;
    }

    if (do_show_streams) {
3014
        ret = show_streams(wctx, &ifile);
3015 3016 3017
        CHECK_END;
    }
    if (do_show_chapters) {
3018
        ret = show_chapters(wctx, &ifile);
3019 3020 3021
        CHECK_END;
    }
    if (do_show_format) {
3022
        ret = show_format(wctx, &ifile);
3023
        CHECK_END;
3024 3025 3026
    }

end:
3027 3028
    if (ifile.fmt_ctx)
        close_input_file(&ifile);
3029 3030 3031
    av_freep(&nb_streams_frames);
    av_freep(&nb_streams_packets);
    av_freep(&selected_streams);
3032

3033
    return ret;
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}

static void show_usage(void)
{
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    av_log(NULL, AV_LOG_INFO, "Simple multimedia streams analyzer\n");
    av_log(NULL, AV_LOG_INFO, "usage: %s [OPTIONS] [INPUT_FILE]\n", program_name);
    av_log(NULL, AV_LOG_INFO, "\n");
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}

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static void ffprobe_show_program_version(WriterContext *w)
{
3045 3046
    AVBPrint pbuf;
    av_bprint_init(&pbuf, 1, AV_BPRINT_SIZE_UNLIMITED);
3047

3048
    writer_print_section_header(w, SECTION_ID_PROGRAM_VERSION);
3049 3050
    print_str("version", FFMPEG_VERSION);
    print_fmt("copyright", "Copyright (c) %d-%d the FFmpeg developers",
3051
              program_birth_year, CONFIG_THIS_YEAR);
3052
    print_str("compiler_ident", CC_IDENT);
3053
    print_str("configuration", FFMPEG_CONFIGURATION);
3054
    writer_print_section_footer(w);
3055

3056
    av_bprint_finalize(&pbuf, NULL);
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}

#define SHOW_LIB_VERSION(libname, LIBNAME)                              \
    do {                                                                \
        if (CONFIG_##LIBNAME) {                                         \
            unsigned int version = libname##_version();                 \
3063
            writer_print_section_header(w, SECTION_ID_LIBRARY_VERSION); \
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            print_str("name",    "lib" #libname);                       \
            print_int("major",   LIB##LIBNAME##_VERSION_MAJOR);         \
            print_int("minor",   LIB##LIBNAME##_VERSION_MINOR);         \
            print_int("micro",   LIB##LIBNAME##_VERSION_MICRO);         \
            print_int("version", version);                              \
3069
            print_str("ident",   LIB##LIBNAME##_IDENT);                 \
3070
            writer_print_section_footer(w);                             \
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        }                                                               \
    } while (0)

static void ffprobe_show_library_versions(WriterContext *w)
{
3076
    writer_print_section_header(w, SECTION_ID_LIBRARY_VERSIONS);
3077 3078 3079 3080 3081 3082 3083 3084
    SHOW_LIB_VERSION(avutil,     AVUTIL);
    SHOW_LIB_VERSION(avcodec,    AVCODEC);
    SHOW_LIB_VERSION(avformat,   AVFORMAT);
    SHOW_LIB_VERSION(avdevice,   AVDEVICE);
    SHOW_LIB_VERSION(avfilter,   AVFILTER);
    SHOW_LIB_VERSION(swscale,    SWSCALE);
    SHOW_LIB_VERSION(swresample, SWRESAMPLE);
    SHOW_LIB_VERSION(postproc,   POSTPROC);
3085
    writer_print_section_footer(w);
3086 3087
}

3088 3089 3090 3091 3092
#define PRINT_PIX_FMT_FLAG(flagname, name)                                \
    do {                                                                  \
        print_int(name, !!(pixdesc->flags & AV_PIX_FMT_FLAG_##flagname)); \
    } while (0)

3093 3094 3095
static void ffprobe_show_pixel_formats(WriterContext *w)
{
    const AVPixFmtDescriptor *pixdesc = NULL;
3096
    int i, n;
3097 3098 3099 3100 3101 3102

    writer_print_section_header(w, SECTION_ID_PIXEL_FORMATS);
    while (pixdesc = av_pix_fmt_desc_next(pixdesc)) {
        writer_print_section_header(w, SECTION_ID_PIXEL_FORMAT);
        print_str("name", pixdesc->name);
        print_int("nb_components", pixdesc->nb_components);
3103 3104 3105 3106 3107 3108 3109
        if ((pixdesc->nb_components >= 3) && !(pixdesc->flags & AV_PIX_FMT_FLAG_RGB)) {
            print_int    ("log2_chroma_w", pixdesc->log2_chroma_w);
            print_int    ("log2_chroma_h", pixdesc->log2_chroma_h);
        } else {
            print_str_opt("log2_chroma_w", "N/A");
            print_str_opt("log2_chroma_h", "N/A");
        }
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        n = av_get_bits_per_pixel(pixdesc);
        if (n) print_int    ("bits_per_pixel", n);
        else   print_str_opt("bits_per_pixel", "N/A");
3113 3114 3115 3116 3117 3118 3119 3120
        if (do_show_pixel_format_flags) {
            writer_print_section_header(w, SECTION_ID_PIXEL_FORMAT_FLAGS);
            PRINT_PIX_FMT_FLAG(BE,        "big_endian");
            PRINT_PIX_FMT_FLAG(PAL,       "palette");
            PRINT_PIX_FMT_FLAG(BITSTREAM, "bitstream");
            PRINT_PIX_FMT_FLAG(HWACCEL,   "hwaccel");
            PRINT_PIX_FMT_FLAG(PLANAR,    "planar");
            PRINT_PIX_FMT_FLAG(RGB,       "rgb");
3121
#if FF_API_PSEUDOPAL
3122
            PRINT_PIX_FMT_FLAG(PSEUDOPAL, "pseudopal");
3123
#endif
3124 3125 3126
            PRINT_PIX_FMT_FLAG(ALPHA,     "alpha");
            writer_print_section_footer(w);
        }
3127 3128 3129 3130 3131
        if (do_show_pixel_format_components && (pixdesc->nb_components > 0)) {
            writer_print_section_header(w, SECTION_ID_PIXEL_FORMAT_COMPONENTS);
            for (i = 0; i < pixdesc->nb_components; i++) {
                writer_print_section_header(w, SECTION_ID_PIXEL_FORMAT_COMPONENT);
                print_int("index", i + 1);
3132
                print_int("bit_depth", pixdesc->comp[i].depth);
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                writer_print_section_footer(w);
            }
            writer_print_section_footer(w);
        }
3137 3138 3139 3140 3141
        writer_print_section_footer(w);
    }
    writer_print_section_footer(w);
}

3142
static int opt_format(void *optctx, const char *opt, const char *arg)
3143 3144 3145
{
    iformat = av_find_input_format(arg);
    if (!iformat) {
3146
        av_log(NULL, AV_LOG_ERROR, "Unknown input format: %s\n", arg);
3147
        return AVERROR(EINVAL);
3148
    }
3149
    return 0;
3150 3151
}

3152 3153 3154 3155 3156 3157 3158 3159 3160 3161 3162 3163 3164 3165 3166 3167 3168 3169 3170 3171 3172 3173 3174 3175 3176 3177 3178 3179 3180 3181 3182 3183 3184 3185 3186 3187 3188 3189 3190 3191 3192 3193 3194 3195 3196 3197 3198 3199 3200 3201 3202 3203 3204 3205 3206 3207 3208 3209 3210 3211 3212 3213 3214 3215 3216 3217 3218 3219 3220 3221 3222 3223
static inline void mark_section_show_entries(SectionID section_id,
                                             int show_all_entries, AVDictionary *entries)
{
    struct section *section = &sections[section_id];

    section->show_all_entries = show_all_entries;
    if (show_all_entries) {
        SectionID *id;
        for (id = section->children_ids; *id != -1; id++)
            mark_section_show_entries(*id, show_all_entries, entries);
    } else {
        av_dict_copy(&section->entries_to_show, entries, 0);
    }
}

static int match_section(const char *section_name,
                         int show_all_entries, AVDictionary *entries)
{
    int i, ret = 0;

    for (i = 0; i < FF_ARRAY_ELEMS(sections); i++) {
        const struct section *section = &sections[i];
        if (!strcmp(section_name, section->name) ||
            (section->unique_name && !strcmp(section_name, section->unique_name))) {
            av_log(NULL, AV_LOG_DEBUG,
                   "'%s' matches section with unique name '%s'\n", section_name,
                   (char *)av_x_if_null(section->unique_name, section->name));
            ret++;
            mark_section_show_entries(section->id, show_all_entries, entries);
        }
    }
    return ret;
}

static int opt_show_entries(void *optctx, const char *opt, const char *arg)
{
    const char *p = arg;
    int ret = 0;

    while (*p) {
        AVDictionary *entries = NULL;
        char *section_name = av_get_token(&p, "=:");
        int show_all_entries = 0;

        if (!section_name) {
            av_log(NULL, AV_LOG_ERROR,
                   "Missing section name for option '%s'\n", opt);
            return AVERROR(EINVAL);
        }

        if (*p == '=') {
            p++;
            while (*p && *p != ':') {
                char *entry = av_get_token(&p, ",:");
                if (!entry)
                    break;
                av_log(NULL, AV_LOG_VERBOSE,
                       "Adding '%s' to the entries to show in section '%s'\n",
                       entry, section_name);
                av_dict_set(&entries, entry, "", AV_DICT_DONT_STRDUP_KEY);
                if (*p == ',')
                    p++;
            }
        } else {
            show_all_entries = 1;
        }

        ret = match_section(section_name, show_all_entries, entries);
        if (ret == 0) {
            av_log(NULL, AV_LOG_ERROR, "No match for section '%s'\n", section_name);
            ret = AVERROR(EINVAL);
        }
3224
        av_dict_free(&entries);
3225 3226 3227 3228 3229 3230 3231 3232 3233 3234 3235
        av_free(section_name);

        if (ret <= 0)
            break;
        if (*p)
            p++;
    }

    return ret;
}

3236
static int opt_show_format_entry(void *optctx, const char *opt, const char *arg)
3237
{
3238 3239 3240
    char *buf = av_asprintf("format=%s", arg);
    int ret;

3241 3242 3243
    if (!buf)
        return AVERROR(ENOMEM);

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    av_log(NULL, AV_LOG_WARNING,
           "Option '%s' is deprecated, use '-show_entries format=%s' instead\n",
           opt, arg);
    ret = opt_show_entries(optctx, opt, buf);
    av_free(buf);
    return ret;
3250 3251
}

3252
static void opt_input_file(void *optctx, const char *arg)
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3253
{
3254
    if (input_filename) {
3255 3256 3257
        av_log(NULL, AV_LOG_ERROR,
                "Argument '%s' provided as input filename, but '%s' was already specified.\n",
                arg, input_filename);
3258
        exit_program(1);
3259
    }
3260 3261 3262
    if (!strcmp(arg, "-"))
        arg = "pipe:";
    input_filename = arg;
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}

3265 3266 3267 3268 3269 3270
static int opt_input_file_i(void *optctx, const char *opt, const char *arg)
{
    opt_input_file(optctx, arg);
    return 0;
}

3271
void show_help_default(const char *opt, const char *arg)
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3272
{
3273
    av_log_set_callback(log_callback_help);
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3274
    show_usage();
3275
    show_help_options(options, "Main options:", 0, 0, 0);
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3276
    printf("\n");
3277 3278

    show_help_children(avformat_get_class(), AV_OPT_FLAG_DECODING_PARAM);
3279
    show_help_children(avcodec_get_class(), AV_OPT_FLAG_DECODING_PARAM);
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}

3282 3283 3284 3285 3286 3287 3288 3289 3290 3291 3292 3293 3294 3295 3296 3297 3298 3299 3300 3301 3302 3303 3304 3305 3306 3307 3308 3309 3310 3311 3312 3313 3314 3315 3316 3317 3318 3319 3320 3321 3322 3323 3324 3325 3326 3327 3328 3329 3330 3331 3332 3333 3334 3335 3336 3337 3338 3339 3340 3341 3342 3343 3344 3345 3346 3347 3348 3349 3350 3351
/**
 * Parse interval specification, according to the format:
 * INTERVAL ::= [START|+START_OFFSET][%[END|+END_OFFSET]]
 * INTERVALS ::= INTERVAL[,INTERVALS]
*/
static int parse_read_interval(const char *interval_spec,
                               ReadInterval *interval)
{
    int ret = 0;
    char *next, *p, *spec = av_strdup(interval_spec);
    if (!spec)
        return AVERROR(ENOMEM);

    if (!*spec) {
        av_log(NULL, AV_LOG_ERROR, "Invalid empty interval specification\n");
        ret = AVERROR(EINVAL);
        goto end;
    }

    p = spec;
    next = strchr(spec, '%');
    if (next)
        *next++ = 0;

    /* parse first part */
    if (*p) {
        interval->has_start = 1;

        if (*p == '+') {
            interval->start_is_offset = 1;
            p++;
        } else {
            interval->start_is_offset = 0;
        }

        ret = av_parse_time(&interval->start, p, 1);
        if (ret < 0) {
            av_log(NULL, AV_LOG_ERROR, "Invalid interval start specification '%s'\n", p);
            goto end;
        }
    } else {
        interval->has_start = 0;
    }

    /* parse second part */
    p = next;
    if (p && *p) {
        int64_t us;
        interval->has_end = 1;

        if (*p == '+') {
            interval->end_is_offset = 1;
            p++;
        } else {
            interval->end_is_offset = 0;
        }

        if (interval->end_is_offset && *p == '#') {
            long long int lli;
            char *tail;
            interval->duration_frames = 1;
            p++;
            lli = strtoll(p, &tail, 10);
            if (*tail || lli < 0) {
                av_log(NULL, AV_LOG_ERROR,
                       "Invalid or negative value '%s' for duration number of frames\n", p);
                goto end;
            }
            interval->end = lli;
        } else {
3352
            interval->duration_frames = 0;
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            ret = av_parse_time(&us, p, 1);
            if (ret < 0) {
                av_log(NULL, AV_LOG_ERROR, "Invalid interval end/duration specification '%s'\n", p);
                goto end;
            }
            interval->end = us;
        }
    } else {
        interval->has_end = 0;
    }

end:
    av_free(spec);
    return ret;
}

static int parse_read_intervals(const char *intervals_spec)
{
    int ret, n, i;
    char *p, *spec = av_strdup(intervals_spec);
    if (!spec)
        return AVERROR(ENOMEM);

    /* preparse specification, get number of intervals */
    for (n = 0, p = spec; *p; p++)
        if (*p == ',')
            n++;
    n++;

3382
    read_intervals = av_malloc_array(n, sizeof(*read_intervals));
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    if (!read_intervals) {
        ret = AVERROR(ENOMEM);
        goto end;
    }
    read_intervals_nb = n;

    /* parse intervals */
    p = spec;
3391 3392 3393 3394 3395
    for (i = 0; p; i++) {
        char *next;

        av_assert0(i < read_intervals_nb);
        next = strchr(p, ',');
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        if (next)
            *next++ = 0;

        read_intervals[i].id = i;
        ret = parse_read_interval(p, &read_intervals[i]);
        if (ret < 0) {
            av_log(NULL, AV_LOG_ERROR, "Error parsing read interval #%d '%s'\n",
                   i, p);
            goto end;
        }
        av_log(NULL, AV_LOG_VERBOSE, "Parsed log interval ");
        log_read_interval(&read_intervals[i], NULL, AV_LOG_VERBOSE);
        p = next;
    }
    av_assert0(i == read_intervals_nb);

end:
    av_free(spec);
    return ret;
}

static int opt_read_intervals(void *optctx, const char *opt, const char *arg)
{
    return parse_read_intervals(arg);
}

3422
static int opt_pretty(void *optctx, const char *opt, const char *arg)
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{
    show_value_unit              = 1;
    use_value_prefix             = 1;
    use_byte_value_binary_prefix = 1;
    use_value_sexagesimal_format = 1;
3428
    return 0;
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}

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static void print_section(SectionID id, int level)
{
    const SectionID *pid;
    const struct section *section = &sections[id];
    printf("%c%c%c",
           section->flags & SECTION_FLAG_IS_WRAPPER           ? 'W' : '.',
           section->flags & SECTION_FLAG_IS_ARRAY             ? 'A' : '.',
           section->flags & SECTION_FLAG_HAS_VARIABLE_FIELDS  ? 'V' : '.');
    printf("%*c  %s", level * 4, ' ', section->name);
    if (section->unique_name)
        printf("/%s", section->unique_name);
    printf("\n");

    for (pid = section->children_ids; *pid != -1; pid++)
        print_section(*pid, level+1);
}

static int opt_sections(void *optctx, const char *opt, const char *arg)
{
    printf("Sections:\n"
           "W.. = Section is a wrapper (contains other sections, no local entries)\n"
           ".A. = Section contains an array of elements of the same type\n"
           "..V = Section may contain a variable number of fields with variable keys\n"
           "FLAGS NAME/UNIQUE_NAME\n"
           "---\n");
    print_section(SECTION_ID_ROOT, 0);
    return 0;
}

3460 3461
static int opt_show_versions(const char *opt, const char *arg)
{
3462 3463
    mark_section_show_entries(SECTION_ID_PROGRAM_VERSION, 1, NULL);
    mark_section_show_entries(SECTION_ID_LIBRARY_VERSION, 1, NULL);
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    return 0;
}

3467 3468 3469 3470 3471 3472 3473
#define DEFINE_OPT_SHOW_SECTION(section, target_section_id)             \
    static int opt_show_##section(const char *opt, const char *arg)     \
    {                                                                   \
        mark_section_show_entries(SECTION_ID_##target_section_id, 1, NULL); \
        return 0;                                                       \
    }

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DEFINE_OPT_SHOW_SECTION(chapters,         CHAPTERS)
DEFINE_OPT_SHOW_SECTION(error,            ERROR)
DEFINE_OPT_SHOW_SECTION(format,           FORMAT)
DEFINE_OPT_SHOW_SECTION(frames,           FRAMES)
DEFINE_OPT_SHOW_SECTION(library_versions, LIBRARY_VERSIONS)
DEFINE_OPT_SHOW_SECTION(packets,          PACKETS)
DEFINE_OPT_SHOW_SECTION(pixel_formats,    PIXEL_FORMATS)
DEFINE_OPT_SHOW_SECTION(program_version,  PROGRAM_VERSION)
DEFINE_OPT_SHOW_SECTION(streams,          STREAMS)
DEFINE_OPT_SHOW_SECTION(programs,         PROGRAMS)
3484

3485
static const OptionDef real_options[] = {
3486
    CMDUTILS_COMMON_OPTIONS
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    { "f", HAS_ARG, {.func_arg = opt_format}, "force format", "format" },
    { "unit", OPT_BOOL, {&show_value_unit}, "show unit of the displayed values" },
    { "prefix", OPT_BOOL, {&use_value_prefix}, "use SI prefixes for the displayed values" },
    { "byte_binary_prefix", OPT_BOOL, {&use_byte_value_binary_prefix},
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      "use binary prefixes for byte units" },
3492
    { "sexagesimal", OPT_BOOL,  {&use_value_sexagesimal_format},
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3493
      "use sexagesimal format HOURS:MM:SS.MICROSECONDS for time units" },
3494
    { "pretty", 0, {.func_arg = opt_pretty},
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      "prettify the format of displayed values, make it more human readable" },
3496
    { "print_format", OPT_STRING | HAS_ARG, {(void*)&print_format},
3497
      "set the output printing format (available formats are: default, compact, csv, flat, ini, json, xml)", "format" },
3498
    { "of", OPT_STRING | HAS_ARG, {(void*)&print_format}, "alias for -print_format", "format" },
3499
    { "select_streams", OPT_STRING | HAS_ARG, {(void*)&stream_specifier}, "select the specified streams", "stream_specifier" },
3500
    { "sections", OPT_EXIT, {.func_arg = opt_sections}, "print sections structure and section information, and exit" },
3501
    { "show_data",    OPT_BOOL, {(void*)&do_show_data}, "show packets data" },
3502
    { "show_data_hash", OPT_STRING | HAS_ARG, {(void*)&show_data_hash}, "show packets data hash" },
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    { "show_error",   0, {(void*)&opt_show_error},  "show probing error" },
    { "show_format",  0, {(void*)&opt_show_format}, "show format/container info" },
    { "show_frames",  0, {(void*)&opt_show_frames}, "show frames info" },
3506
    { "show_format_entry", HAS_ARG, {.func_arg = opt_show_format_entry},
3507
      "show a particular entry from the format/container info", "entry" },
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    { "show_entries", HAS_ARG, {.func_arg = opt_show_entries},
      "show a set of specified entries", "entry_list" },
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#if HAVE_THREADS
    { "show_log", OPT_INT|HAS_ARG, {(void*)&do_show_log}, "show log" },
#endif
3513
    { "show_packets", 0, {(void*)&opt_show_packets}, "show packets info" },
3514
    { "show_programs", 0, {(void*)&opt_show_programs}, "show programs info" },
3515
    { "show_streams", 0, {(void*)&opt_show_streams}, "show streams info" },
3516
    { "show_chapters", 0, {(void*)&opt_show_chapters}, "show chapters info" },
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    { "count_frames", OPT_BOOL, {(void*)&do_count_frames}, "count the number of frames per stream" },
    { "count_packets", OPT_BOOL, {(void*)&do_count_packets}, "count the number of packets per stream" },
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    { "show_program_version",  0, {(void*)&opt_show_program_version},  "show ffprobe version" },
    { "show_library_versions", 0, {(void*)&opt_show_library_versions}, "show library versions" },
3521
    { "show_versions",         0, {(void*)&opt_show_versions}, "show program and library versions" },
3522
    { "show_pixel_formats", 0, {(void*)&opt_show_pixel_formats}, "show pixel format descriptions" },
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    { "show_private_data", OPT_BOOL, {(void*)&show_private_data}, "show private data" },
    { "private",           OPT_BOOL, {(void*)&show_private_data}, "same as show_private_data" },
3525
    { "bitexact", OPT_BOOL, {&do_bitexact}, "force bitexact output" },
3526
    { "read_intervals", HAS_ARG, {.func_arg = opt_read_intervals}, "set read intervals", "read_intervals" },
3527
    { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {.func_arg = opt_default}, "generic catch all option", "" },
3528
    { "i", HAS_ARG, {.func_arg = opt_input_file_i}, "read specified file", "input_file"},
3529 3530
    { "find_stream_info", OPT_BOOL | OPT_INPUT | OPT_EXPERT, { &find_stream_info },
        "read and decode the streams to fill missing information with heuristics" },
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    { NULL, },
};

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static inline int check_section_show_entries(int section_id)
{
    int *id;
    struct section *section = &sections[section_id];
    if (sections[section_id].show_all_entries || sections[section_id].entries_to_show)
        return 1;
    for (id = section->children_ids; *id != -1; id++)
        if (check_section_show_entries(*id))
            return 1;
    return 0;
}

#define SET_DO_SHOW(id, varname) do {                                   \
        if (check_section_show_entries(SECTION_ID_##id))                \
            do_show_##varname = 1;                                      \
    } while (0)

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Stefano Sabatini committed
3551 3552
int main(int argc, char **argv)
{
3553 3554 3555 3556
    const Writer *w;
    WriterContext *wctx;
    char *buf;
    char *w_name = NULL, *w_args = NULL;
3557
    int ret, i;
3558

3559 3560
    init_dynload();

3561 3562 3563 3564 3565 3566
#if HAVE_THREADS
    ret = pthread_mutex_init(&log_mutex, NULL);
    if (ret != 0) {
        goto end;
    }
#endif
3567
    av_log_set_flags(AV_LOG_SKIP_REPEATED);
3568
    register_exit(ffprobe_cleanup);
3569

3570
    options = real_options;
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    parse_loglevel(argc, argv, options);
3572
    avformat_network_init();
3573
    init_opts();
3574 3575 3576
#if CONFIG_AVDEVICE
    avdevice_register_all();
#endif
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3577

3578
    show_banner(argc, argv, options);
3579
    parse_options(NULL, argc, argv, options, opt_input_file);
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3580

3581 3582 3583
    if (do_show_log)
        av_log_set_callback(log_callback);

3584
    /* mark things to show, based on -show_entries */
3585
    SET_DO_SHOW(CHAPTERS, chapters);
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    SET_DO_SHOW(ERROR, error);
    SET_DO_SHOW(FORMAT, format);
    SET_DO_SHOW(FRAMES, frames);
    SET_DO_SHOW(LIBRARY_VERSIONS, library_versions);
    SET_DO_SHOW(PACKETS, packets);
3591
    SET_DO_SHOW(PIXEL_FORMATS, pixel_formats);
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    SET_DO_SHOW(PIXEL_FORMAT_FLAGS, pixel_format_flags);
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    SET_DO_SHOW(PIXEL_FORMAT_COMPONENTS, pixel_format_components);
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    SET_DO_SHOW(PROGRAM_VERSION, program_version);
3595
    SET_DO_SHOW(PROGRAMS, programs);
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    SET_DO_SHOW(STREAMS, streams);
    SET_DO_SHOW(STREAM_DISPOSITION, stream_disposition);
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    SET_DO_SHOW(PROGRAM_STREAM_DISPOSITION, stream_disposition);
3599

3600 3601 3602 3603 3604
    SET_DO_SHOW(CHAPTER_TAGS, chapter_tags);
    SET_DO_SHOW(FORMAT_TAGS, format_tags);
    SET_DO_SHOW(FRAME_TAGS, frame_tags);
    SET_DO_SHOW(PROGRAM_TAGS, program_tags);
    SET_DO_SHOW(STREAM_TAGS, stream_tags);
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    SET_DO_SHOW(PROGRAM_STREAM_TAGS, stream_tags);
3606
    SET_DO_SHOW(PACKET_TAGS, packet_tags);
3607

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    if (do_bitexact && (do_show_program_version || do_show_library_versions)) {
        av_log(NULL, AV_LOG_ERROR,
               "-bitexact and -show_program_version or -show_library_versions "
               "options are incompatible\n");
        ret = AVERROR(EINVAL);
        goto end;
    }

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    writer_register_all();

    if (!print_format)
        print_format = av_strdup("default");
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    if (!print_format) {
        ret = AVERROR(ENOMEM);
        goto end;
    }
3624
    w_name = av_strtok(print_format, "=", &buf);
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    if (!w_name) {
        av_log(NULL, AV_LOG_ERROR,
               "No name specified for the output format\n");
        ret = AVERROR(EINVAL);
        goto end;
    }
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    w_args = buf;

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    if (show_data_hash) {
        if ((ret = av_hash_alloc(&hash, show_data_hash)) < 0) {
            if (ret == AVERROR(EINVAL)) {
                const char *n;
                av_log(NULL, AV_LOG_ERROR,
                       "Unknown hash algorithm '%s'\nKnown algorithms:",
                       show_data_hash);
                for (i = 0; (n = av_hash_names(i)); i++)
                    av_log(NULL, AV_LOG_ERROR, " %s", n);
                av_log(NULL, AV_LOG_ERROR, "\n");
            }
            goto end;
        }
    }

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    w = writer_get_by_name(w_name);
    if (!w) {
        av_log(NULL, AV_LOG_ERROR, "Unknown output format with name '%s'\n", w_name);
        ret = AVERROR(EINVAL);
        goto end;
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3653 3654
    }

3655 3656
    if ((ret = writer_open(&wctx, w, w_args,
                           sections, FF_ARRAY_ELEMS(sections))) >= 0) {
3657 3658 3659
        if (w == &xml_writer)
            wctx->string_validation_utf8_flags |= AV_UTF8_FLAG_EXCLUDE_XML_INVALID_CONTROL_CODES;

3660
        writer_print_section_header(wctx, SECTION_ID_ROOT);
3661

3662 3663 3664 3665
        if (do_show_program_version)
            ffprobe_show_program_version(wctx);
        if (do_show_library_versions)
            ffprobe_show_library_versions(wctx);
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        if (do_show_pixel_formats)
            ffprobe_show_pixel_formats(wctx);
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        if (!input_filename &&
3670
            ((do_show_format || do_show_programs || do_show_streams || do_show_chapters || do_show_packets || do_show_error) ||
3671
             (!do_show_program_version && !do_show_library_versions && !do_show_pixel_formats))) {
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            show_usage();
            av_log(NULL, AV_LOG_ERROR, "You have to specify one input file.\n");
            av_log(NULL, AV_LOG_ERROR, "Use -h to get full help or, even better, run 'man %s'.\n", program_name);
            ret = AVERROR(EINVAL);
3676
        } else if (input_filename) {
3677
            ret = probe_file(wctx, input_filename);
3678 3679 3680
            if (ret < 0 && do_show_error)
                show_error(wctx, ret);
        }
3681

3682
        writer_print_section_footer(wctx);
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        writer_close(&wctx);
    }
3685

3686 3687
end:
    av_freep(&print_format);
3688
    av_freep(&read_intervals);
3689
    av_hash_freep(&hash);
3690 3691

    uninit_opts();
3692 3693
    for (i = 0; i < FF_ARRAY_ELEMS(sections); i++)
        av_dict_free(&(sections[i].entries_to_show));
3694

3695 3696
    avformat_network_deinit();

3697
    return ret < 0;
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3698
}