ffprobe.c 118 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/opt.h"
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#include "libavutil/pixdesc.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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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_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 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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/* 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_LIBRARY_VERSION,
    SECTION_ID_LIBRARY_VERSIONS,
    SECTION_ID_PACKET,
    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, -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 } },
    [SECTION_ID_FRAME_SIDE_DATA] =     { SECTION_ID_FRAME_SIDE_DATA, "side_data", 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_SIDE_DATA_LIST, -1 } },
    [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 } },
    [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 } },
    [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 char *const binary_unit_prefixes [] = { "", "Ki", "Mi", "Gi", "Ti", "Pi" };
static const char *const decimal_unit_prefixes[] = { "", "K" , "M" , "G" , "T" , "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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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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}

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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(binary_unit_prefixes) - 1);
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                vald /= exp2(index * 10);
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                prefix_string = binary_unit_prefixes[index];
            } else {
                index = (long long int) (log10(vald)) / 3;
                index = av_clip(index, 0, FF_ARRAY_ELEMS(decimal_unit_prefixes) - 1);
                vald /= pow(10, index * 3);
                prefix_string = decimal_unit_prefixes[index];
            }
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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);
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    void (*print_rational)      (WriterContext *wctx, AVRational *q, char *sep);
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    void (*print_string)        (WriterContext *wctx, const char *, const char *);
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    int flags;                  ///< a combination or WRITER_FLAG_*
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} Writer;

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#define SECTION_MAX_NB_LEVELS 10

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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
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    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];
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    AVBPrint section_pbuf[SECTION_MAX_NB_LEVELS]; ///< generic print buffer dedicated to each section,
                                                  ///  used by various writers
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    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
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    int string_validation;
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    char *string_validation_replacement;
    unsigned int string_validation_utf8_flags;
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};
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static const char *writer_get_name(void *p)
{
    WriterContext *wctx = p;
    return wctx->writer->name;
}

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

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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=""}},
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    { "svr", "set string validation replacement string", OFFSET(string_validation_replacement), AV_OPT_TYPE_STRING, {.str="\xEF\xBF\xBD"}},
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    { NULL }
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};

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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;
}

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static const AVClass writer_class = {
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    .class_name = "Writer",
    .item_name  = writer_get_name,
    .option     = writer_options,
    .version    = LIBAVUTIL_VERSION_INT,
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    .child_next = writer_child_next,
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};

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static void writer_close(WriterContext **wctx)
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{
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    int i;

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    if (!*wctx)
        return;
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    if ((*wctx)->writer->uninit)
        (*wctx)->writer->uninit(*wctx);
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    for (i = 0; i < SECTION_MAX_NB_LEVELS; i++)
        av_bprint_finalize(&(*wctx)->section_pbuf[i], NULL);
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    if ((*wctx)->writer->priv_class)
        av_opt_free((*wctx)->priv);
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    av_freep(&((*wctx)->priv));
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    av_opt_free(*wctx);
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    av_freep(wctx);
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}

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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]);
}


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static int writer_open(WriterContext **wctx, const Writer *writer, const char *args,
                       const struct section *sections, int nb_sections)
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{
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    int i, ret = 0;
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    if (!(*wctx = av_mallocz(sizeof(WriterContext)))) {
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        ret = AVERROR(ENOMEM);
        goto fail;
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    }

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    if (!((*wctx)->priv = av_mallocz(writer->priv_size))) {
        ret = AVERROR(ENOMEM);
        goto fail;
433
    }
434

435
    (*wctx)->class = &writer_class;
436
    (*wctx)->writer = writer;
437 438 439
    (*wctx)->level = -1;
    (*wctx)->sections = sections;
    (*wctx)->nb_sections = nb_sections;
440

441 442
    av_opt_set_defaults(*wctx);

443 444 445 446
    if (writer->priv_class) {
        void *priv_ctx = (*wctx)->priv;
        *((const AVClass **)priv_ctx) = writer->priv_class;
        av_opt_set_defaults(priv_ctx);
447
    }
448

449 450 451 452 453 454 455 456
    /* 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);
457
            goto fail;
458 459 460 461 462 463 464 465 466 467 468 469
        }

        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);
470
    }
471

472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491
    /* 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;
            }
        }
    }

492 493 494
    for (i = 0; i < SECTION_MAX_NB_LEVELS; i++)
        av_bprint_init(&(*wctx)->section_pbuf[i], 1, AV_BPRINT_SIZE_UNLIMITED);

495
    if ((*wctx)->writer->init)
496
        ret = (*wctx)->writer->init(*wctx);
497 498 499 500 501 502 503
    if (ret < 0)
        goto fail;

    return 0;

fail:
    writer_close(wctx);
504 505 506
    return ret;
}

507
static inline void writer_print_section_header(WriterContext *wctx,
508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526
                                               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;
    }

527
    if (wctx->writer->print_section_header)
528
        wctx->writer->print_section_header(wctx);
529 530
}

531
static inline void writer_print_section_footer(WriterContext *wctx)
532
{
533 534 535 536 537 538 539 540 541
    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++;
542
    }
543 544 545
    if (wctx->writer->print_section_footer)
        wctx->writer->print_section_footer(wctx);
    wctx->level--;
546
}
547

548
static inline void writer_print_integer(WriterContext *wctx,
549
                                        const char *key, long long int val)
550
{
551 552 553
    const struct section *section = wctx->section[wctx->level];

    if (section->show_all_entries || av_dict_get(section->entries_to_show, key, NULL, 0)) {
554
        wctx->writer->print_integer(wctx, key, val);
555
        wctx->nb_item[wctx->level]++;
556
    }
557 558
}

559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616
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

617
static inline int writer_print_string(WriterContext *wctx,
618
                                      const char *key, const char *val, int flags)
619
{
620
    const struct section *section = wctx->section[wctx->level];
621
    int ret = 0;
622

623 624
    if ((flags & PRINT_STRING_OPT)
        && !(wctx->writer->flags & WRITER_FLAG_DISPLAY_OPTIONAL_FIELDS))
625
        return 0;
626 627

    if (section->show_all_entries || av_dict_get(section->entries_to_show, key, NULL, 0)) {
628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646
        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);
        }

647
        wctx->nb_item[wctx->level]++;
648
    }
649 650

    return ret;
651 652
}

653 654 655 656 657 658 659 660 661
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);
}

662
static void writer_print_time(WriterContext *wctx, const char *key,
663
                              int64_t ts, const AVRational *time_base, int is_duration)
664 665 666
{
    char buf[128];

667
    if ((!is_duration && ts == AV_NOPTS_VALUE) || (is_duration && ts == 0)) {
668
        writer_print_string(wctx, key, "N/A", PRINT_STRING_OPT);
669 670 671 672 673 674 675 676
    } 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);
    }
677 678
}

679
static void writer_print_ts(WriterContext *wctx, const char *key, int64_t ts, int is_duration)
680
{
681
    if ((!is_duration && ts == AV_NOPTS_VALUE) || (is_duration && ts == 0)) {
682
        writer_print_string(wctx, key, "N/A", PRINT_STRING_OPT);
683
    } else {
684
        writer_print_integer(wctx, key, ts);
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
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);
}

716 717 718 719 720 721 722 723 724 725 726 727 728 729 730
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);
}

731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756
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);
}

757 758
#define MAX_REGISTERED_WRITERS_NB 64

759
static const Writer *registered_writers[MAX_REGISTERED_WRITERS_NB + 1];
760

761
static int writer_register(const Writer *writer)
762
{
763 764 765 766 767 768 769
    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;
770 771
}

772
static const Writer *writer_get_by_name(const char *name)
773 774 775 776 777 778 779 780 781
{
    int i;

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

    return NULL;
}
782

783

784
/* WRITERS */
785

786 787 788 789 790 791
#define DEFINE_WRITER_CLASS(name)                   \
static const char *name##_get_name(void *ctx)       \
{                                                   \
    return #name ;                                  \
}                                                   \
static const AVClass name##_class = {               \
792 793 794
    .class_name = #name,                            \
    .item_name  = name##_get_name,                  \
    .option     = name##_options                    \
795 796
}

797 798
/* Default output */

799 800
typedef struct DefaultContext {
    const AVClass *class;
801
    int nokey;
802
    int noprint_wrappers;
803
    int nested_section[SECTION_MAX_NB_LEVELS];
804 805
} DefaultContext;

806
#undef OFFSET
807 808 809
#define OFFSET(x) offsetof(DefaultContext, x)

static const AVOption default_options[] = {
810 811 812 813
    { "noprint_wrappers", "do not print headers and footers", OFFSET(noprint_wrappers), AV_OPT_TYPE_INT, {.i64=0}, 0, 1 },
    { "nw",               "do not print headers and footers", OFFSET(noprint_wrappers), AV_OPT_TYPE_INT, {.i64=0}, 0, 1 },
    { "nokey",          "force no key printing",     OFFSET(nokey),          AV_OPT_TYPE_INT, {.i64=0}, 0, 1 },
    { "nk",             "force no key printing",     OFFSET(nokey),          AV_OPT_TYPE_INT, {.i64=0}, 0, 1 },
814 815 816
    {NULL},
};

817
DEFINE_WRITER_CLASS(default);
818

819 820 821 822 823
/* 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++)
824
        dst[i] = av_toupper(src[i]);
825 826 827 828
    dst[i] = 0;
    return dst;
}

829
static void default_print_section_header(WriterContext *wctx)
830
{
831
    DefaultContext *def = wctx->priv;
832
    char buf[32];
833 834 835 836
    const struct section *section = wctx->section[wctx->level];
    const struct section *parent_section = wctx->level ?
        wctx->section[wctx->level-1] : NULL;

837
    av_bprint_clear(&wctx->section_pbuf[wctx->level]);
838 839 840
    if (parent_section &&
        !(parent_section->flags & (SECTION_FLAG_IS_WRAPPER|SECTION_FLAG_IS_ARRAY))) {
        def->nested_section[wctx->level] = 1;
841 842
        av_bprintf(&wctx->section_pbuf[wctx->level], "%s%s:",
                   wctx->section_pbuf[wctx->level-1].str,
843 844 845 846 847
                   upcase_string(buf, sizeof(buf),
                                 av_x_if_null(section->element_name, section->name)));
    }

    if (def->noprint_wrappers || def->nested_section[wctx->level])
848
        return;
849

850 851
    if (!(section->flags & (SECTION_FLAG_IS_WRAPPER|SECTION_FLAG_IS_ARRAY)))
        printf("[%s]\n", upcase_string(buf, sizeof(buf), section->name));
852 853
}

854
static void default_print_section_footer(WriterContext *wctx)
855
{
856
    DefaultContext *def = wctx->priv;
857
    const struct section *section = wctx->section[wctx->level];
858 859
    char buf[32];

860
    if (def->noprint_wrappers || def->nested_section[wctx->level])
861 862 863 864
        return;

    if (!(section->flags & (SECTION_FLAG_IS_WRAPPER|SECTION_FLAG_IS_ARRAY)))
        printf("[/%s]\n", upcase_string(buf, sizeof(buf), section->name));
865 866 867 868
}

static void default_print_str(WriterContext *wctx, const char *key, const char *value)
{
869
    DefaultContext *def = wctx->priv;
870

871
    if (!def->nokey)
872
        printf("%s%s=", wctx->section_pbuf[wctx->level].str, key);
873
    printf("%s\n", value);
874 875
}

876
static void default_print_int(WriterContext *wctx, const char *key, long long int value)
877
{
878 879 880
    DefaultContext *def = wctx->priv;

    if (!def->nokey)
881
        printf("%s%s=", wctx->section_pbuf[wctx->level].str, key);
882
    printf("%lld\n", value);
883 884
}

885
static const Writer default_writer = {
886
    .name                  = "default",
887
    .priv_size             = sizeof(DefaultContext),
888 889 890 891
    .print_section_header  = default_print_section_header,
    .print_section_footer  = default_print_section_footer,
    .print_integer         = default_print_int,
    .print_string          = default_print_str,
892
    .flags = WRITER_FLAG_DISPLAY_OPTIONAL_FIELDS,
893
    .priv_class            = &default_class,
894 895
};

896 897 898
/* Compact output */

/**
899
 * Apply C-language-like string escaping.
900
 */
901
static const char *c_escape_str(AVBPrint *dst, const char *src, const char sep, void *log_ctx)
902 903 904 905
{
    const char *p;

    for (p = src; *p; p++) {
906
        switch (*p) {
907 908
        case '\b': av_bprintf(dst, "%s", "\\b");  break;
        case '\f': av_bprintf(dst, "%s", "\\f");  break;
909 910 911
        case '\n': av_bprintf(dst, "%s", "\\n");  break;
        case '\r': av_bprintf(dst, "%s", "\\r");  break;
        case '\\': av_bprintf(dst, "%s", "\\\\"); break;
912 913
        default:
            if (*p == sep)
914 915
                av_bprint_chars(dst, '\\', 1);
            av_bprint_chars(dst, *p, 1);
916 917
        }
    }
918
    return dst->str;
919 920 921 922 923
}

/**
 * Quote fields containing special characters, check RFC4180.
 */
924
static const char *csv_escape_str(AVBPrint *dst, const char *src, const char sep, void *log_ctx)
925
{
926 927
    char meta_chars[] = { sep, '"', '\n', '\r', '\0' };
    int needs_quoting = !!src[strcspn(src, meta_chars)];
928

929
    if (needs_quoting)
930
        av_bprint_chars(dst, '"', 1);
931

932 933
    for (; *src; src++) {
        if (*src == '"')
934
            av_bprint_chars(dst, '"', 1);
935
        av_bprint_chars(dst, *src, 1);
936
    }
937
    if (needs_quoting)
938
        av_bprint_chars(dst, '"', 1);
939
    return dst->str;
940 941
}

942
static const char *none_escape_str(AVBPrint *dst, const char *src, const char sep, void *log_ctx)
943 944 945 946 947 948 949 950 951
{
    return src;
}

typedef struct CompactContext {
    const AVClass *class;
    char *item_sep_str;
    char item_sep;
    int nokey;
952
    int print_section;
953
    char *escape_mode_str;
954
    const char * (*escape_str)(AVBPrint *dst, const char *src, const char sep, void *log_ctx);
955
    int nested_section[SECTION_MAX_NB_LEVELS];
956 957
    int has_nested_elems[SECTION_MAX_NB_LEVELS];
    int terminate_line[SECTION_MAX_NB_LEVELS];
958 959
} CompactContext;

960
#undef OFFSET
961 962 963 964 965
#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 },
966 967
    {"nokey",    "force no key printing", OFFSET(nokey),           AV_OPT_TYPE_INT,    {.i64=0},    0,        1        },
    {"nk",       "force no key printing", OFFSET(nokey),           AV_OPT_TYPE_INT,    {.i64=0},    0,        1        },
968 969
    {"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 },
970 971
    {"print_section", "print section name", OFFSET(print_section), AV_OPT_TYPE_INT,    {.i64=1},    0,        1        },
    {"p",             "print section name", OFFSET(print_section), AV_OPT_TYPE_INT,    {.i64=1},    0,        1        },
972 973 974
    {NULL},
};

975
DEFINE_WRITER_CLASS(compact);
976

977
static av_cold int compact_init(WriterContext *wctx)
978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998
{
    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;
}

999
static void compact_print_section_header(WriterContext *wctx)
1000 1001
{
    CompactContext *compact = wctx->priv;
1002
    const struct section *section = wctx->section[wctx->level];
1003 1004
    const struct section *parent_section = wctx->level ?
        wctx->section[wctx->level-1] : NULL;
1005 1006
    compact->terminate_line[wctx->level] = 1;
    compact->has_nested_elems[wctx->level] = 0;
1007

1008
    av_bprint_clear(&wctx->section_pbuf[wctx->level]);
1009
    if (!(section->flags & SECTION_FLAG_IS_ARRAY) && parent_section &&
1010 1011
        !(parent_section->flags & (SECTION_FLAG_IS_WRAPPER|SECTION_FLAG_IS_ARRAY))) {
        compact->nested_section[wctx->level] = 1;
1012
        compact->has_nested_elems[wctx->level-1] = 1;
1013 1014
        av_bprintf(&wctx->section_pbuf[wctx->level], "%s%s:",
                   wctx->section_pbuf[wctx->level-1].str,
1015
                   (char *)av_x_if_null(section->element_name, section->name));
1016
        wctx->nb_item[wctx->level] = wctx->nb_item[wctx->level-1];
1017 1018 1019 1020 1021 1022 1023 1024 1025 1026
    } 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);
    }
1027 1028
}

1029
static void compact_print_section_footer(WriterContext *wctx)
1030
{
1031
    CompactContext *compact = wctx->priv;
1032

1033
    if (!compact->nested_section[wctx->level] &&
1034
        compact->terminate_line[wctx->level] &&
1035
        !(wctx->section[wctx->level]->flags & (SECTION_FLAG_IS_WRAPPER|SECTION_FLAG_IS_ARRAY)))
1036
        printf("\n");
1037 1038 1039 1040 1041
}

static void compact_print_str(WriterContext *wctx, const char *key, const char *value)
{
    CompactContext *compact = wctx->priv;
1042
    AVBPrint buf;
1043

1044
    if (wctx->nb_item[wctx->level]) printf("%c", compact->item_sep);
1045
    if (!compact->nokey)
1046
        printf("%s%s=", wctx->section_pbuf[wctx->level].str, key);
1047 1048 1049
    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);
1050 1051
}

1052
static void compact_print_int(WriterContext *wctx, const char *key, long long int value)
1053 1054 1055
{
    CompactContext *compact = wctx->priv;

1056
    if (wctx->nb_item[wctx->level]) printf("%c", compact->item_sep);
1057
    if (!compact->nokey)
1058
        printf("%s%s=", wctx->section_pbuf[wctx->level].str, key);
1059
    printf("%lld", value);
1060 1061
}

1062
static const Writer compact_writer = {
1063 1064 1065 1066 1067 1068 1069 1070
    .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,
1071
    .priv_class           = &compact_class,
1072 1073
};

1074 1075
/* CSV output */

1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091
#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 },
    {"nokey",    "force no key printing", OFFSET(nokey),           AV_OPT_TYPE_INT,    {.i64=1},    0,        1        },
    {"nk",       "force no key printing", OFFSET(nokey),           AV_OPT_TYPE_INT,    {.i64=1},    0,        1        },
    {"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 },
    {"print_section", "print section name", OFFSET(print_section), AV_OPT_TYPE_INT,    {.i64=1},    0,        1        },
    {"p",             "print section name", OFFSET(print_section), AV_OPT_TYPE_INT,    {.i64=1},    0,        1        },
    {NULL},
};

DEFINE_WRITER_CLASS(csv);
1092

1093
static const Writer csv_writer = {
1094 1095
    .name                 = "csv",
    .priv_size            = sizeof(CompactContext),
1096
    .init                 = compact_init,
1097 1098 1099 1100 1101
    .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,
1102
    .priv_class           = &csv_class,
1103 1104
};

1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119
/* 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 },
1120 1121
    {"hierarchical", "specify if the section specification should be hierarchical", OFFSET(hierarchical), AV_OPT_TYPE_INT, {.i64=1}, 0, 1 },
    {"h",           "specify if the section specification should be hierarchical", OFFSET(hierarchical), AV_OPT_TYPE_INT, {.i64=1}, 0, 1 },
1122 1123 1124
    {NULL},
};

1125
DEFINE_WRITER_CLASS(flat);
1126

1127
static av_cold int flat_init(WriterContext *wctx)
1128 1129 1130 1131 1132 1133 1134 1135 1136
{
    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];
1137

1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165
    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;
1166 1167
        case '`':  av_bprintf(dst, "%s", "\\`");  break;
        case '$':  av_bprintf(dst, "%s", "\\$");  break;
1168 1169 1170 1171 1172 1173
        default:   av_bprint_chars(dst, *p, 1);   break;
        }
    }
    return dst->str;
}

1174
static void flat_print_section_header(WriterContext *wctx)
1175 1176
{
    FlatContext *flat = wctx->priv;
1177
    AVBPrint *buf = &wctx->section_pbuf[wctx->level];
1178 1179 1180
    const struct section *section = wctx->section[wctx->level];
    const struct section *parent_section = wctx->level ?
        wctx->section[wctx->level-1] : NULL;
1181

1182 1183
    /* build section header */
    av_bprint_clear(buf);
1184 1185
    if (!parent_section)
        return;
1186
    av_bprintf(buf, "%s", wctx->section_pbuf[wctx->level-1].str);
1187

1188 1189 1190
    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);
1191

1192 1193 1194 1195 1196
        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);
        }
1197
    }
1198 1199 1200 1201
}

static void flat_print_int(WriterContext *wctx, const char *key, long long int value)
{
1202
    printf("%s%s=%lld\n", wctx->section_pbuf[wctx->level].str, key, value);
1203 1204 1205 1206 1207 1208 1209
}

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

1210
    printf("%s", wctx->section_pbuf[wctx->level].str);
1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225
    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,
1226
    .priv_class            = &flat_class,
1227 1228
};

1229 1230
/* INI format output */

1231
typedef struct INIContext {
1232 1233 1234 1235 1236 1237 1238 1239
    const AVClass *class;
    int hierarchical;
} INIContext;

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

static const AVOption ini_options[] = {
1240 1241
    {"hierarchical", "specify if the section specification should be hierarchical", OFFSET(hierarchical), AV_OPT_TYPE_INT, {.i64=1}, 0, 1 },
    {"h",           "specify if the section specification should be hierarchical", OFFSET(hierarchical), AV_OPT_TYPE_INT, {.i64=1}, 0, 1 },
1242 1243 1244
    {NULL},
};

1245
DEFINE_WRITER_CLASS(ini);
1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273

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;
}

1274
static void ini_print_section_header(WriterContext *wctx)
1275 1276
{
    INIContext *ini = wctx->priv;
1277
    AVBPrint *buf = &wctx->section_pbuf[wctx->level];
1278 1279 1280
    const struct section *section = wctx->section[wctx->level];
    const struct section *parent_section = wctx->level ?
        wctx->section[wctx->level-1] : NULL;
1281

1282 1283
    av_bprint_clear(buf);
    if (!parent_section) {
1284 1285 1286
        printf("# ffprobe output\n\n");
        return;
    }
1287

1288
    if (wctx->nb_item[wctx->level-1])
1289 1290
        printf("\n");

1291
    av_bprintf(buf, "%s", wctx->section_pbuf[wctx->level-1].str);
1292 1293 1294
    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);
1295

1296 1297 1298 1299 1300
        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);
        }
1301
    }
1302

1303
    if (!(section->flags & (SECTION_FLAG_IS_ARRAY|SECTION_FLAG_IS_WRAPPER)))
1304
        printf("[%s]\n", buf->str);
1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329
}

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,
1330
    .priv_class            = &ini_class,
1331 1332
};

1333 1334
/* JSON output */

1335
typedef struct JSONContext {
1336
    const AVClass *class;
1337
    int indent_level;
1338 1339
    int compact;
    const char *item_sep, *item_start_end;
1340 1341
} JSONContext;

1342 1343 1344 1345
#undef OFFSET
#define OFFSET(x) offsetof(JSONContext, x)

static const AVOption json_options[]= {
1346 1347
    { "compact", "enable compact output", OFFSET(compact), AV_OPT_TYPE_INT, {.i64=0}, 0, 1 },
    { "c",       "enable compact output", OFFSET(compact), AV_OPT_TYPE_INT, {.i64=0}, 0, 1 },
1348 1349 1350
    { NULL }
};

1351
DEFINE_WRITER_CLASS(json);
1352

1353
static av_cold int json_init(WriterContext *wctx)
1354 1355
{
    JSONContext *json = wctx->priv;
1356 1357 1358

    json->item_sep       = json->compact ? ", " : ",\n";
    json->item_start_end = json->compact ? " "  : "\n";
1359 1360 1361 1362

    return 0;
}

1363
static const char *json_escape_str(AVBPrint *dst, const char *src, void *log_ctx)
1364 1365 1366
{
    static const char json_escape[] = {'"', '\\', '\b', '\f', '\n', '\r', '\t', 0};
    static const char json_subst[]  = {'"', '\\',  'b',  'f',  'n',  'r',  't', 0};
1367 1368 1369 1370 1371
    const char *p;

    for (p = src; *p; p++) {
        char *s = strchr(json_escape, *p);
        if (s) {
1372 1373
            av_bprint_chars(dst, '\\', 1);
            av_bprint_chars(dst, json_subst[s - json_escape], 1);
1374
        } else if ((unsigned char)*p < 32) {
1375
            av_bprintf(dst, "\\u00%02x", *p & 0xff);
1376
        } else {
1377
            av_bprint_chars(dst, *p, 1);
1378 1379
        }
    }
1380
    return dst->str;
1381 1382
}

1383 1384
#define JSON_INDENT() printf("%*c", json->indent_level * 4, ' ')

1385
static void json_print_section_header(WriterContext *wctx)
1386 1387
{
    JSONContext *json = wctx->priv;
1388
    AVBPrint buf;
1389 1390 1391
    const struct section *section = wctx->section[wctx->level];
    const struct section *parent_section = wctx->level ?
        wctx->section[wctx->level-1] : NULL;
1392

1393 1394 1395 1396 1397 1398 1399
    if (wctx->level && wctx->nb_item[wctx->level-1])
        printf(",\n");

    if (section->flags & SECTION_FLAG_IS_WRAPPER) {
        printf("{\n");
        json->indent_level++;
    } else {
1400
        av_bprint_init(&buf, 1, AV_BPRINT_SIZE_UNLIMITED);
1401 1402 1403
        json_escape_str(&buf, section->name, wctx);
        JSON_INDENT();

1404
        json->indent_level++;
1405 1406
        if (section->flags & SECTION_FLAG_IS_ARRAY) {
            printf("\"%s\": [\n", buf.str);
1407
        } else if (parent_section && !(parent_section->flags & SECTION_FLAG_IS_ARRAY)) {
1408 1409 1410 1411 1412
            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 */
1413
            if (parent_section && parent_section->id == SECTION_ID_PACKETS_AND_FRAMES) {
1414 1415 1416 1417 1418 1419
                if (!json->compact)
                    JSON_INDENT();
                printf("\"type\": \"%s\"%s", section->name, json->item_sep);
            }
        }
        av_bprint_finalize(&buf, NULL);
1420
    }
1421 1422
}

1423
static void json_print_section_footer(WriterContext *wctx)
1424 1425
{
    JSONContext *json = wctx->priv;
1426
    const struct section *section = wctx->section[wctx->level];
1427

1428 1429 1430 1431
    if (wctx->level == 0) {
        json->indent_level--;
        printf("\n}\n");
    } else if (section->flags & SECTION_FLAG_IS_ARRAY) {
1432
        printf("\n");
1433
        json->indent_level--;
1434 1435
        JSON_INDENT();
        printf("]");
1436 1437 1438
    } else {
        printf("%s", json->item_start_end);
        json->indent_level--;
1439 1440
        if (!json->compact)
            JSON_INDENT();
1441
        printf("}");
1442
    }
1443 1444 1445
}

static inline void json_print_item_str(WriterContext *wctx,
1446
                                       const char *key, const char *value)
1447
{
1448
    AVBPrint buf;
1449

1450 1451
    av_bprint_init(&buf, 1, AV_BPRINT_SIZE_UNLIMITED);
    printf("\"%s\":", json_escape_str(&buf, key,   wctx));
1452
    av_bprint_clear(&buf);
1453 1454
    printf(" \"%s\"", json_escape_str(&buf, value, wctx));
    av_bprint_finalize(&buf, NULL);
1455 1456 1457 1458
}

static void json_print_str(WriterContext *wctx, const char *key, const char *value)
{
1459 1460
    JSONContext *json = wctx->priv;

1461 1462
    if (wctx->nb_item[wctx->level])
        printf("%s", json->item_sep);
1463 1464
    if (!json->compact)
        JSON_INDENT();
1465
    json_print_item_str(wctx, key, value);
1466 1467
}

1468
static void json_print_int(WriterContext *wctx, const char *key, long long int value)
1469
{
1470
    JSONContext *json = wctx->priv;
1471
    AVBPrint buf;
1472

1473 1474
    if (wctx->nb_item[wctx->level])
        printf("%s", json->item_sep);
1475 1476
    if (!json->compact)
        JSON_INDENT();
1477 1478 1479 1480

    av_bprint_init(&buf, 1, AV_BPRINT_SIZE_UNLIMITED);
    printf("\"%s\": %lld", json_escape_str(&buf, key, wctx), value);
    av_bprint_finalize(&buf, NULL);
1481
}
1482

1483
static const Writer json_writer = {
1484 1485
    .name                 = "json",
    .priv_size            = sizeof(JSONContext),
1486
    .init                 = json_init,
1487 1488 1489 1490
    .print_section_header = json_print_section_header,
    .print_section_footer = json_print_section_footer,
    .print_integer        = json_print_int,
    .print_string         = json_print_str,
1491
    .flags = WRITER_FLAG_PUT_PACKETS_AND_FRAMES_IN_SAME_CHAPTER,
1492
    .priv_class           = &json_class,
1493 1494
};

1495 1496
/* XML output */

1497
typedef struct XMLContext {
1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508
    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[] = {
1509 1510 1511 1512
    {"fully_qualified", "specify if the output should be fully qualified", OFFSET(fully_qualified), AV_OPT_TYPE_INT, {.i64=0},  0, 1 },
    {"q",               "specify if the output should be fully qualified", OFFSET(fully_qualified), AV_OPT_TYPE_INT, {.i64=0},  0, 1 },
    {"xsd_strict",      "ensure that the output is XSD compliant",         OFFSET(xsd_strict),      AV_OPT_TYPE_INT, {.i64=0},  0, 1 },
    {"x",               "ensure that the output is XSD compliant",         OFFSET(xsd_strict),      AV_OPT_TYPE_INT, {.i64=0},  0, 1 },
1513 1514 1515
    {NULL},
};

1516
DEFINE_WRITER_CLASS(xml);
1517

1518
static av_cold int xml_init(WriterContext *wctx)
1519 1520 1521 1522 1523 1524 1525 1526 1527 1528
{
    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); \
1529
            return AVERROR(EINVAL);                                     \
1530 1531 1532 1533
        }
        CHECK_COMPLIANCE(show_private_data, "private");
        CHECK_COMPLIANCE(show_value_unit,   "unit");
        CHECK_COMPLIANCE(use_value_prefix,  "prefix");
1534 1535 1536 1537 1538 1539 1540

        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);
        }
1541 1542 1543 1544 1545
    }

    return 0;
}

1546
static const char *xml_escape_str(AVBPrint *dst, const char *src, void *log_ctx)
1547 1548 1549
{
    const char *p;

1550
    for (p = src; *p; p++) {
1551
        switch (*p) {
1552 1553 1554
        case '&' : av_bprintf(dst, "%s", "&amp;");  break;
        case '<' : av_bprintf(dst, "%s", "&lt;");   break;
        case '>' : av_bprintf(dst, "%s", "&gt;");   break;
1555
        case '"' : av_bprintf(dst, "%s", "&quot;"); break;
1556 1557
        case '\'': av_bprintf(dst, "%s", "&apos;"); break;
        default: av_bprint_chars(dst, *p, 1);
1558 1559 1560
        }
    }

1561
    return dst->str;
1562 1563
}

1564
#define XML_INDENT() printf("%*c", xml->indent_level * 4, ' ')
1565

1566
static void xml_print_section_header(WriterContext *wctx)
1567 1568
{
    XMLContext *xml = wctx->priv;
1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582
    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;
1583 1584
    }

1585 1586 1587
    if (xml->within_tag) {
        xml->within_tag = 0;
        printf(">\n");
1588
    }
1589
    if (section->flags & SECTION_FLAG_HAS_VARIABLE_FIELDS) {
1590 1591
        xml->indent_level++;
    } else {
1592 1593 1594
        if (parent_section && (parent_section->flags & SECTION_FLAG_IS_WRAPPER) &&
            wctx->level && wctx->nb_item[wctx->level-1])
            printf("\n");
1595
        xml->indent_level++;
1596

1597 1598 1599 1600 1601 1602 1603
        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;
        }
    }
1604 1605
}

1606
static void xml_print_section_footer(WriterContext *wctx)
1607 1608
{
    XMLContext *xml = wctx->priv;
1609
    const struct section *section = wctx->section[wctx->level];
1610

1611 1612 1613 1614
    if (wctx->level == 0) {
        printf("</%sffprobe>\n", xml->fully_qualified ? "ffprobe:" : "");
    } else if (xml->within_tag) {
        xml->within_tag = 0;
1615
        printf("/>\n");
1616
        xml->indent_level--;
1617
    } else if (section->flags & SECTION_FLAG_HAS_VARIABLE_FIELDS) {
1618 1619 1620 1621
        xml->indent_level--;
    } else {
        XML_INDENT(); printf("</%s>\n", section->name);
        xml->indent_level--;
1622 1623 1624 1625 1626
    }
}

static void xml_print_str(WriterContext *wctx, const char *key, const char *value)
{
1627
    AVBPrint buf;
1628 1629
    XMLContext *xml = wctx->priv;
    const struct section *section = wctx->section[wctx->level];
1630

1631
    av_bprint_init(&buf, 1, AV_BPRINT_SIZE_UNLIMITED);
1632

1633
    if (section->flags & SECTION_FLAG_HAS_VARIABLE_FIELDS) {
1634
        XML_INDENT();
1635 1636
        printf("<%s key=\"%s\"",
               section->element_name, xml_escape_str(&buf, key, wctx));
1637 1638 1639 1640 1641 1642 1643 1644
        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));
    }

1645
    av_bprint_finalize(&buf, NULL);
1646 1647 1648 1649
}

static void xml_print_int(WriterContext *wctx, const char *key, long long int value)
{
1650
    if (wctx->nb_item[wctx->level])
1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662
        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,
1663
    .flags = WRITER_FLAG_PUT_PACKETS_AND_FRAMES_IN_SAME_CHAPTER,
1664
    .priv_class           = &xml_class,
1665 1666
};

1667 1668 1669 1670 1671 1672 1673 1674 1675
static void writer_register_all(void)
{
    static int initialized;

    if (initialized)
        return;
    initialized = 1;

    writer_register(&default_writer);
1676
    writer_register(&compact_writer);
1677
    writer_register(&csv_writer);
1678
    writer_register(&flat_writer);
1679
    writer_register(&ini_writer);
1680
    writer_register(&json_writer);
1681
    writer_register(&xml_writer);
1682 1683 1684
}

#define print_fmt(k, f, ...) do {              \
1685 1686 1687
    av_bprint_clear(&pbuf);                    \
    av_bprintf(&pbuf, f, __VA_ARGS__);         \
    writer_print_string(w, k, pbuf.str, 0);    \
1688 1689 1690
} while (0)

#define print_int(k, v)         writer_print_integer(w, k, v)
1691
#define print_q(k, v, s)        writer_print_rational(w, k, v, s)
1692
#define print_str(k, v)         writer_print_string(w, k, v, 0)
1693 1694
#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)
1695 1696 1697 1698
#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)
1699 1700 1701 1702 1703 1704 1705
#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)

1706 1707
#define print_section_header(s) writer_print_section_header(w, s)
#define print_section_footer(s) writer_print_section_footer(w, s)
1708

1709 1710 1711 1712 1713 1714 1715 1716
#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)) ); \
}

1717
static inline int show_tags(WriterContext *w, AVDictionary *tags, int section_id)
1718 1719
{
    AVDictionaryEntry *tag = NULL;
1720
    int ret = 0;
1721 1722

    if (!tags)
1723
        return 0;
1724
    writer_print_section_header(w, section_id);
1725 1726

    while ((tag = av_dict_get(tags, "", tag, AV_DICT_IGNORE_SUFFIX))) {
1727
        if ((ret = print_str_validate(tag->key, tag->value)) < 0)
1728 1729
            break;
    }
1730
    writer_print_section_footer(w);
1731 1732

    return ret;
1733
}
1734 1735

static void show_packet(WriterContext *w, AVFormatContext *fmt_ctx, AVPacket *pkt, int packet_idx)
1736 1737 1738
{
    char val_str[128];
    AVStream *st = fmt_ctx->streams[pkt->stream_index];
1739
    AVBPrint pbuf;
1740
    const char *s;
1741

1742 1743
    av_bprint_init(&pbuf, 1, AV_BPRINT_SIZE_UNLIMITED);

1744 1745
    writer_print_section_header(w, SECTION_ID_PACKET);

1746 1747 1748
    s = av_get_media_type_string(st->codec->codec_type);
    if (s) print_str    ("codec_type", s);
    else   print_str_opt("codec_type", "unknown");
1749
    print_int("stream_index",     pkt->stream_index);
1750 1751 1752 1753
    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);
1754 1755
    print_duration_ts("duration",        pkt->duration);
    print_duration_time("duration_time", pkt->duration, &st->time_base);
1756 1757
    print_duration_ts("convergence_duration", pkt->convergence_duration);
    print_duration_time("convergence_duration_time", pkt->convergence_duration, &st->time_base);
1758
    print_val("size",             pkt->size, unit_byte_str);
1759 1760
    if (pkt->pos != -1) print_fmt    ("pos", "%"PRId64, pkt->pos);
    else                print_str_opt("pos", "N/A");
1761
    print_fmt("flags", "%c",      pkt->flags & AV_PKT_FLAG_KEY ? 'K' : '_');
1762 1763 1764 1765 1766 1767

    if (pkt->side_data_elems) {
        int i;
        writer_print_section_header(w, SECTION_ID_PACKET_SIDE_DATA_LIST);
        for (i = 0; i < pkt->side_data_elems; i++) {
            AVPacketSideData *sd = &pkt->side_data[i];
1768
            const char *name = av_packet_side_data_name(sd->type);
1769
            writer_print_section_header(w, SECTION_ID_PACKET_SIDE_DATA);
1770
            print_str("side_data_type", name ? name : "unknown");
1771 1772 1773 1774 1775 1776 1777 1778 1779 1780
            print_int("side_data_size", sd->size);
            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));
            }
            writer_print_section_footer(w);
        }
        writer_print_section_footer(w);
    }

1781 1782
    if (do_show_data)
        writer_print_data(w, "data", pkt->data, pkt->size);
1783
    writer_print_data_hash(w, "data_hash", pkt->data, pkt->size);
1784
    writer_print_section_footer(w);
1785

1786
    av_bprint_finalize(&pbuf, NULL);
1787
    fflush(stdout);
1788 1789
}

1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812
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);
}

1813 1814
static void show_frame(WriterContext *w, AVFrame *frame, AVStream *stream,
                       AVFormatContext *fmt_ctx)
1815
{
1816
    AVBPrint pbuf;
1817
    const char *s;
1818
    int i;
1819

1820 1821
    av_bprint_init(&pbuf, 1, AV_BPRINT_SIZE_UNLIMITED);

1822
    writer_print_section_header(w, SECTION_ID_FRAME);
1823 1824 1825 1826

    s = av_get_media_type_string(stream->codec->codec_type);
    if (s) print_str    ("media_type", s);
    else   print_str_opt("media_type", "unknown");
1827
    print_int("stream_index",           stream->index);
1828 1829 1830 1831 1832
    print_int("key_frame",              frame->key_frame);
    print_ts  ("pkt_pts",               frame->pkt_pts);
    print_time("pkt_pts_time",          frame->pkt_pts, &stream->time_base);
    print_ts  ("pkt_dts",               frame->pkt_dts);
    print_time("pkt_dts_time",          frame->pkt_dts, &stream->time_base);
1833 1834
    print_ts  ("best_effort_timestamp", av_frame_get_best_effort_timestamp(frame));
    print_time("best_effort_timestamp_time", av_frame_get_best_effort_timestamp(frame), &stream->time_base);
1835 1836 1837
    print_duration_ts  ("pkt_duration",      av_frame_get_pkt_duration(frame));
    print_duration_time("pkt_duration_time", av_frame_get_pkt_duration(frame), &stream->time_base);
    if (av_frame_get_pkt_pos (frame) != -1) print_fmt    ("pkt_pos", "%"PRId64, av_frame_get_pkt_pos(frame));
1838
    else                      print_str_opt("pkt_pos", "N/A");
1839
    if (av_frame_get_pkt_size(frame) != -1) print_fmt    ("pkt_size", "%d", av_frame_get_pkt_size(frame));
1840
    else                       print_str_opt("pkt_size", "N/A");
1841 1842

    switch (stream->codec->codec_type) {
1843 1844
        AVRational sar;

1845
    case AVMEDIA_TYPE_VIDEO:
1846 1847 1848 1849 1850
        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");
1851 1852 1853
        sar = av_guess_sample_aspect_ratio(fmt_ctx, stream, frame);
        if (sar.num) {
            print_q("sample_aspect_ratio", sar, ':');
1854 1855 1856 1857 1858 1859 1860 1861 1862 1863
        } 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);
        break;
1864 1865 1866 1867 1868 1869

    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);
1870 1871 1872 1873 1874 1875 1876 1877
        print_int("channels", av_frame_get_channels(frame));
        if (av_frame_get_channel_layout(frame)) {
            av_bprint_clear(&pbuf);
            av_bprint_channel_layout(&pbuf, av_frame_get_channels(frame),
                                     av_frame_get_channel_layout(frame));
            print_str    ("channel_layout", pbuf.str);
        } else
            print_str_opt("channel_layout", "unknown");
1878 1879
        break;
    }
1880 1881
    if (do_show_frame_tags)
        show_tags(w, av_frame_get_metadata(frame), SECTION_ID_FRAME_TAGS);
1882 1883 1884 1885 1886 1887 1888 1889 1890 1891
    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");
            print_int("side_data_size", sd->size);
1892 1893 1894 1895 1896
            if (sd->type == AV_FRAME_DATA_DISPLAYMATRIX && sd->size >= 9*4) {
                abort();
                writer_print_integers(w, "displaymatrix", sd->data, 9, " %11d", 3, 4, 1);
                print_int("rotation", av_display_rotation_get((int32_t *)sd->data));
            }
1897 1898 1899 1900
            writer_print_section_footer(w);
        }
        writer_print_section_footer(w);
    }
1901

1902
    writer_print_section_footer(w);
1903

1904
    av_bprint_finalize(&pbuf, NULL);
1905 1906 1907
    fflush(stdout);
}

1908 1909 1910
static av_always_inline int process_frame(WriterContext *w,
                                          AVFormatContext *fmt_ctx,
                                          AVFrame *frame, AVPacket *pkt)
1911 1912
{
    AVCodecContext *dec_ctx = fmt_ctx->streams[pkt->stream_index]->codec;
1913
    AVSubtitle sub;
1914
    int ret = 0, got_frame = 0;
1915

1916
    if (dec_ctx->codec) {
1917 1918
        switch (dec_ctx->codec_type) {
        case AVMEDIA_TYPE_VIDEO:
1919
            ret = avcodec_decode_video2(dec_ctx, frame, &got_frame, pkt);
1920
            break;
1921

1922
        case AVMEDIA_TYPE_AUDIO:
1923
            ret = avcodec_decode_audio4(dec_ctx, frame, &got_frame, pkt);
1924
            break;
1925 1926 1927 1928

        case AVMEDIA_TYPE_SUBTITLE:
            ret = avcodec_decode_subtitle2(dec_ctx, &sub, &got_frame, pkt);
            break;
1929
        }
1930
    }
1931

1932 1933 1934 1935 1936 1937
    if (ret < 0)
        return ret;
    ret = FFMIN(ret, pkt->size); /* guard against bogus return values */
    pkt->data += ret;
    pkt->size -= ret;
    if (got_frame) {
1938
        int is_sub = (dec_ctx->codec_type == AVMEDIA_TYPE_SUBTITLE);
1939 1940
        nb_streams_frames[pkt->stream_index]++;
        if (do_show_frames)
1941 1942 1943 1944 1945 1946
            if (is_sub)
                show_subtitle(w, &sub, fmt_ctx->streams[pkt->stream_index], fmt_ctx);
            else
                show_frame(w, frame, fmt_ctx->streams[pkt->stream_index], fmt_ctx);
        if (is_sub)
            avsubtitle_free(&sub);
1947 1948
    }
    return got_frame;
1949 1950
}

1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976
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");
}

static int read_interval_packets(WriterContext *w, AVFormatContext *fmt_ctx,
                                 const ReadInterval *interval, int64_t *cur_ts)
1977
{
1978
    AVPacket pkt, pkt1;
1979
    AVFrame *frame = NULL;
1980
    int ret = 0, i = 0, frame_count = 0;
1981
    int64_t start = -INT64_MAX, end = interval->end;
1982
    int has_start = 0, has_end = interval->has_end && !interval->end_is_offset;
1983 1984 1985

    av_init_packet(&pkt);

1986 1987 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
    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;
        }
    }

2013
    frame = av_frame_alloc();
2014 2015 2016 2017
    if (!frame) {
        ret = AVERROR(ENOMEM);
        goto end;
    }
2018
    while (!av_read_frame(fmt_ctx, &pkt)) {
2019 2020 2021 2022 2023 2024
        if (fmt_ctx->nb_streams > nb_streams) {
            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);
            nb_streams = fmt_ctx->nb_streams;
        }
2025
        if (selected_streams[pkt.stream_index]) {
2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048
            AVRational tb = fmt_ctx->streams[pkt.stream_index]->time_base;

            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++;
2049 2050 2051 2052 2053 2054 2055
            if (do_read_packets) {
                if (do_show_packets)
                    show_packet(w, fmt_ctx, &pkt, i++);
                nb_streams_packets[pkt.stream_index]++;
            }
            if (do_read_frames) {
                pkt1 = pkt;
2056
                while (pkt1.size && process_frame(w, fmt_ctx, frame, &pkt1) > 0);
2057
            }
2058
        }
2059
        av_free_packet(&pkt);
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    }
    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;
2067
        if (do_read_frames)
2068
            while (process_frame(w, fmt_ctx, frame, &pkt) > 0);
2069
    }
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end:
2072
    av_frame_free(&frame);
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    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;
}

2080
static int read_packets(WriterContext *w, AVFormatContext *fmt_ctx)
2081 2082 2083 2084 2085 2086 2087 2088 2089 2090 2091 2092 2093 2094
{
    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 };
        ret = read_interval_packets(w, fmt_ctx, &interval, &cur_ts);
    } else {
        for (i = 0; i < read_intervals_nb; i++) {
            ret = read_interval_packets(w, fmt_ctx, &read_intervals[i], &cur_ts);
            if (ret < 0)
                break;
        }
    }
2095 2096

    return ret;
2097 2098
}

2099
static int show_stream(WriterContext *w, AVFormatContext *fmt_ctx, int stream_idx, int in_program)
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{
    AVStream *stream = fmt_ctx->streams[stream_idx];
    AVCodecContext *dec_ctx;
2103
    const AVCodec *dec;
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2104
    char val_str[128];
2105
    const char *s;
2106
    AVRational sar, dar;
2107
    AVBPrint pbuf;
2108
    const AVCodecDescriptor *cd;
2109
    int ret = 0;
2110 2111

    av_bprint_init(&pbuf, 1, AV_BPRINT_SIZE_UNLIMITED);
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2112

2113
    writer_print_section_header(w, in_program ? SECTION_ID_PROGRAM_STREAM : SECTION_ID_STREAM);
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2114

2115
    print_int("index", stream->index);
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    if ((dec_ctx = stream->codec)) {
2118
        const char *profile = NULL;
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        dec = dec_ctx->codec;
        if (dec) {
            print_str("codec_name", dec->name);
            if (!do_bitexact) {
2123 2124
                if (dec->long_name) print_str    ("codec_long_name", dec->long_name);
                else                print_str_opt("codec_long_name", "unknown");
2125
            }
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        } else if ((cd = avcodec_descriptor_get(stream->codec->codec_id))) {
            print_str_opt("codec_name", cd->name);
            if (!do_bitexact) {
                print_str_opt("codec_long_name",
                              cd->long_name ? cd->long_name : "unknown");
            }
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2132
        } else {
2133
            print_str_opt("codec_name", "unknown");
2134
            if (!do_bitexact) {
2135
                print_str_opt("codec_long_name", "unknown");
2136
            }
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        }

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        if (dec && (profile = av_get_profile_name(dec, dec_ctx->profile)))
            print_str("profile", profile);
        else
            print_str_opt("profile", "unknown");

2144 2145 2146
        s = av_get_media_type_string(dec_ctx->codec_type);
        if (s) print_str    ("codec_type", s);
        else   print_str_opt("codec_type", "unknown");
2147
        print_q("codec_time_base", dec_ctx->time_base, '/');
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        /* print AVI/FourCC tag */
2150
        av_get_codec_tag_string(val_str, sizeof(val_str), dec_ctx->codec_tag);
2151 2152
        print_str("codec_tag_string",    val_str);
        print_fmt("codec_tag", "0x%04x", dec_ctx->codec_tag);
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        switch (dec_ctx->codec_type) {
2155
        case AVMEDIA_TYPE_VIDEO:
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            print_int("width",        dec_ctx->width);
            print_int("height",       dec_ctx->height);
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            print_int("coded_width",  dec_ctx->coded_width);
            print_int("coded_height", dec_ctx->coded_height);
2160
            print_int("has_b_frames", dec_ctx->has_b_frames);
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            sar = av_guess_sample_aspect_ratio(fmt_ctx, stream, NULL);
            if (sar.den) {
                print_q("sample_aspect_ratio", sar, ':');
                av_reduce(&dar.num, &dar.den,
                          dec_ctx->width  * sar.num,
                          dec_ctx->height * sar.den,
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                          1024*1024);
2168
                print_q("display_aspect_ratio", dar, ':');
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            } else {
                print_str_opt("sample_aspect_ratio", "N/A");
                print_str_opt("display_aspect_ratio", "N/A");
2172
            }
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            s = av_get_pix_fmt_name(dec_ctx->pix_fmt);
            if (s) print_str    ("pix_fmt", s);
            else   print_str_opt("pix_fmt", "unknown");
2176
            print_int("level",   dec_ctx->level);
2177
            if (dec_ctx->color_range != AVCOL_RANGE_UNSPECIFIED)
2178
                print_str    ("color_range", av_color_range_name(dec_ctx->color_range));
2179 2180 2181 2182 2183
            else
                print_str_opt("color_range", "N/A");
            s = av_get_colorspace_name(dec_ctx->colorspace);
            if (s) print_str    ("color_space", s);
            else   print_str_opt("color_space", "unknown");
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            if (dec_ctx->color_trc != AVCOL_TRC_UNSPECIFIED)
                print_str("color_transfer", av_color_transfer_name(dec_ctx->color_trc));
            else
                print_str_opt("color_transfer", av_color_transfer_name(dec_ctx->color_trc));

            if (dec_ctx->color_primaries != AVCOL_PRI_UNSPECIFIED)
                print_str("color_primaries", av_color_primaries_name(dec_ctx->color_primaries));
            else
                print_str_opt("color_primaries", av_color_primaries_name(dec_ctx->color_primaries));

            if (dec_ctx->chroma_sample_location != AVCHROMA_LOC_UNSPECIFIED)
                print_str("chroma_location", av_chroma_location_name(dec_ctx->chroma_sample_location));
            else
                print_str_opt("chroma_location", av_chroma_location_name(dec_ctx->chroma_sample_location));

2200
            if (dec_ctx->timecode_frame_start >= 0) {
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                char tcbuf[AV_TIMECODE_STR_SIZE];
                av_timecode_make_mpeg_tc_string(tcbuf, dec_ctx->timecode_frame_start);
                print_str("timecode", tcbuf);
2204 2205 2206
            } else {
                print_str_opt("timecode", "N/A");
            }
2207
            print_int("refs", dec_ctx->refs);
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2208 2209
            break;

2210
        case AVMEDIA_TYPE_AUDIO:
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            s = av_get_sample_fmt_name(dec_ctx->sample_fmt);
            if (s) print_str    ("sample_fmt", s);
            else   print_str_opt("sample_fmt", "unknown");
2214
            print_val("sample_rate",     dec_ctx->sample_rate, unit_hertz_str);
2215
            print_int("channels",        dec_ctx->channels);
2216 2217 2218 2219 2220 2221 2222 2223 2224

            if (dec_ctx->channel_layout) {
                av_bprint_clear(&pbuf);
                av_bprint_channel_layout(&pbuf, dec_ctx->channels, dec_ctx->channel_layout);
                print_str    ("channel_layout", pbuf.str);
            } else {
                print_str_opt("channel_layout", "unknown");
            }

2225
            print_int("bits_per_sample", av_get_bits_per_sample(dec_ctx->codec_id));
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2226
            break;
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        case AVMEDIA_TYPE_SUBTITLE:
            if (dec_ctx->width)
                print_int("width",       dec_ctx->width);
            else
                print_str_opt("width",   "N/A");
            if (dec_ctx->height)
                print_int("height",      dec_ctx->height);
            else
                print_str_opt("height",  "N/A");
            break;
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2238 2239
        }
    } else {
2240
        print_str_opt("codec_type", "unknown");
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2241
    }
2242
    if (dec_ctx->codec && dec_ctx->codec->priv_class && show_private_data) {
2243
        const AVOption *opt = NULL;
2244 2245 2246 2247 2248 2249 2250 2251 2252
        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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2253

2254 2255
    if (fmt_ctx->iformat->flags & AVFMT_SHOW_IDS) print_fmt    ("id", "0x%x", stream->id);
    else                                          print_str_opt("id", "N/A");
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    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,      '/');
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    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);
2263 2264
    if (dec_ctx->bit_rate > 0) print_val    ("bit_rate", dec_ctx->bit_rate, unit_bit_per_second_str);
    else                       print_str_opt("bit_rate", "N/A");
2265 2266
    if (dec_ctx->rc_max_rate > 0) print_val ("max_bit_rate", dec_ctx->rc_max_rate, unit_bit_per_second_str);
    else                       print_str_opt("max_bit_rate", "N/A");
2267 2268
    if (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");
2269 2270
    if (stream->nb_frames) print_fmt    ("nb_frames", "%"PRId64, stream->nb_frames);
    else                   print_str_opt("nb_frames", "N/A");
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    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");
2275 2276 2277
    if (do_show_data)
        writer_print_data(w, "extradata", dec_ctx->extradata,
                                          dec_ctx->extradata_size);
2278 2279
    writer_print_data_hash(w, "extradata_hash", dec_ctx->extradata,
                                                dec_ctx->extradata_size);
2280 2281 2282 2283 2284 2285

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

2286
    if (do_show_stream_disposition) {
2287
    writer_print_section_header(w, in_program ? SECTION_ID_PROGRAM_STREAM_DISPOSITION : SECTION_ID_STREAM_DISPOSITION);
2288 2289 2290 2291 2292 2293 2294 2295 2296 2297 2298 2299
    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");
    writer_print_section_footer(w);
2300
    }
2301

2302 2303
    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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2304

2305 2306 2307 2308 2309
    if (stream->nb_side_data) {
        int i;
        writer_print_section_header(w, SECTION_ID_STREAM_SIDE_DATA_LIST);
        for (i = 0; i < stream->nb_side_data; i++) {
            AVPacketSideData *sd = &stream->side_data[i];
2310 2311
            const char *name = av_packet_side_data_name(sd->type);

2312
            writer_print_section_header(w, SECTION_ID_STREAM_SIDE_DATA);
2313
            print_str("side_data_type", name ? name : "unknown");
2314 2315 2316 2317 2318 2319 2320 2321 2322 2323
            print_int("side_data_size", sd->size);
            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));
            }
            writer_print_section_footer(w);
        }
        writer_print_section_footer(w);
    }

2324
    writer_print_section_footer(w);
2325
    av_bprint_finalize(&pbuf, NULL);
2326
    fflush(stdout);
2327 2328

    return ret;
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2329 2330
}

2331
static int show_streams(WriterContext *w, AVFormatContext *fmt_ctx)
2332
{
2333 2334
    int i, ret = 0;

2335
    writer_print_section_header(w, SECTION_ID_STREAMS);
2336
    for (i = 0; i < fmt_ctx->nb_streams; i++)
2337 2338 2339 2340 2341
        if (selected_streams[i]) {
            ret = show_stream(w, fmt_ctx, i, 0);
            if (ret < 0)
                break;
        }
2342
    writer_print_section_footer(w);
2343 2344

    return ret;
2345 2346
}

2347
static int show_program(WriterContext *w, AVFormatContext *fmt_ctx, AVProgram *program)
2348
{
2349
    int i, ret = 0;
2350 2351 2352 2353 2354 2355 2356 2357 2358 2359 2360

    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);
2361 2362
    if (do_show_program_tags)
        ret = show_tags(w, program->metadata, SECTION_ID_PROGRAM_TAGS);
2363 2364
    if (ret < 0)
        goto end;
2365 2366 2367

    writer_print_section_header(w, SECTION_ID_PROGRAM_STREAMS);
    for (i = 0; i < program->nb_stream_indexes; i++) {
2368 2369 2370 2371 2372
        if (selected_streams[program->stream_index[i]]) {
            ret = show_stream(w, fmt_ctx, program->stream_index[i], 1);
            if (ret < 0)
                break;
        }
2373 2374 2375
    }
    writer_print_section_footer(w);

2376
end:
2377
    writer_print_section_footer(w);
2378
    return ret;
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}

2381
static int show_programs(WriterContext *w, AVFormatContext *fmt_ctx)
2382
{
2383
    int i, ret = 0;
2384 2385 2386 2387 2388 2389

    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;
2390 2391 2392
        ret = show_program(w, fmt_ctx, program);
        if (ret < 0)
            break;
2393
    }
2394
    writer_print_section_footer(w);
2395
    return ret;
2396 2397
}

2398
static int show_chapters(WriterContext *w, AVFormatContext *fmt_ctx)
2399
{
2400
    int i, ret = 0;
2401 2402 2403 2404 2405 2406 2407 2408 2409 2410 2411 2412

    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);
2413 2414
        if (do_show_chapter_tags)
            ret = show_tags(w, chapter->metadata, SECTION_ID_CHAPTER_TAGS);
2415 2416 2417
        writer_print_section_footer(w);
    }
    writer_print_section_footer(w);
2418 2419

    return ret;
2420 2421
}

2422
static int show_format(WriterContext *w, AVFormatContext *fmt_ctx)
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2423 2424
{
    char val_str[128];
2425
    int64_t size = fmt_ctx->pb ? avio_size(fmt_ctx->pb) : -1;
2426
    int ret = 0;
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2427

2428
    writer_print_section_header(w, SECTION_ID_FORMAT);
2429
    print_str_validate("filename", fmt_ctx->filename);
2430
    print_int("nb_streams",       fmt_ctx->nb_streams);
2431
    print_int("nb_programs",      fmt_ctx->nb_programs);
2432
    print_str("format_name",      fmt_ctx->iformat->name);
2433
    if (!do_bitexact) {
2434 2435
        if (fmt_ctx->iformat->long_name) print_str    ("format_long_name", fmt_ctx->iformat->long_name);
        else                             print_str_opt("format_long_name", "unknown");
2436
    }
2437 2438
    print_time("start_time",      fmt_ctx->start_time, &AV_TIME_BASE_Q);
    print_time("duration",        fmt_ctx->duration,   &AV_TIME_BASE_Q);
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    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");
2443
    print_int("probe_score", av_format_get_probe_score(fmt_ctx));
2444 2445
    if (do_show_format_tags)
        ret = show_tags(w, fmt_ctx->metadata, SECTION_ID_FORMAT_TAGS);
2446 2447

    writer_print_section_footer(w);
2448
    fflush(stdout);
2449
    return ret;
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}

2452 2453 2454 2455 2456 2457 2458 2459
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));

2460
    writer_print_section_header(w, SECTION_ID_ERROR);
2461 2462
    print_int("code", err);
    print_str("string", errbuf_ptr);
2463
    writer_print_section_footer(w);
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}

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static int open_input_file(AVFormatContext **fmt_ctx_ptr, const char *filename)
{
2468
    int err, i, orig_nb_streams;
2469 2470
    AVFormatContext *fmt_ctx = NULL;
    AVDictionaryEntry *t;
2471
    AVDictionary **opts;
2472
    int scan_all_pmts_set = 0;
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    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;
    }
2478 2479
    if ((err = avformat_open_input(&fmt_ctx, filename,
                                   iformat, &format_opts)) < 0) {
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        print_error(filename, err);
        return err;
    }
2483
    *fmt_ctx_ptr = fmt_ctx;
2484 2485
    if (scan_all_pmts_set)
        av_dict_set(&format_opts, "scan_all_pmts", NULL, AV_DICT_MATCH_CASE);
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    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;
    }

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2491
    /* fill the streams in the format context */
2492 2493 2494
    opts = setup_find_stream_info_opts(fmt_ctx, codec_opts);
    orig_nb_streams = fmt_ctx->nb_streams;

2495 2496
    err = avformat_find_stream_info(fmt_ctx, opts);

2497 2498 2499
    for (i = 0; i < orig_nb_streams; i++)
        av_dict_free(&opts[i]);
    av_freep(&opts);
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    if (err < 0) {
        print_error(filename, err);
        return err;
    }

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    av_dump_format(fmt_ctx, 0, filename, 0);
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    /* bind a decoder to each input stream */
    for (i = 0; i < fmt_ctx->nb_streams; i++) {
        AVStream *stream = fmt_ctx->streams[i];
        AVCodec *codec;

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        if (stream->codec->codec_id == AV_CODEC_ID_PROBE) {
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            av_log(NULL, AV_LOG_WARNING,
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                   "Failed to probe codec for input stream %d\n",
                    stream->index);
        } else if (!(codec = avcodec_find_decoder(stream->codec->codec_id))) {
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            av_log(NULL, AV_LOG_WARNING,
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                    "Unsupported codec with id %d for input stream %d\n",
                    stream->codec->codec_id, stream->index);
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        } else {
            AVDictionary *opts = filter_codec_opts(codec_opts, stream->codec->codec_id,
                                                   fmt_ctx, stream, codec);
            if (avcodec_open2(stream->codec, codec, &opts) < 0) {
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                av_log(NULL, AV_LOG_WARNING, "Could not open codec for input stream %d\n",
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                       stream->index);
            }
            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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        }
    }

    *fmt_ctx_ptr = fmt_ctx;
    return 0;
}

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static void close_input_file(AVFormatContext **ctx_ptr)
{
    int i;
    AVFormatContext *fmt_ctx = *ctx_ptr;

    /* close decoder for each stream */
    for (i = 0; i < fmt_ctx->nb_streams; i++)
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        if (fmt_ctx->streams[i]->codec->codec_id != AV_CODEC_ID_NONE)
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            avcodec_close(fmt_ctx->streams[i]->codec);

    avformat_close_input(ctx_ptr);
}

2553
static int probe_file(WriterContext *wctx, const char *filename)
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{
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    AVFormatContext *fmt_ctx = NULL;
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    int ret, i;
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    int section_id;
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    do_read_frames = do_show_frames || do_count_frames;
    do_read_packets = do_show_packets || do_count_packets;

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    ret = open_input_file(&fmt_ctx, filename);
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    if (ret < 0)
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        goto end;
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#define CHECK_END if (ret < 0) goto end

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    nb_streams = fmt_ctx->nb_streams;
    REALLOCZ_ARRAY_STREAM(nb_streams_frames,0,fmt_ctx->nb_streams);
    REALLOCZ_ARRAY_STREAM(nb_streams_packets,0,fmt_ctx->nb_streams);
    REALLOCZ_ARRAY_STREAM(selected_streams,0,fmt_ctx->nb_streams);
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    for (i = 0; i < fmt_ctx->nb_streams; i++) {
        if (stream_specifier) {
            ret = avformat_match_stream_specifier(fmt_ctx,
                                                  fmt_ctx->streams[i],
                                                  stream_specifier);
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            CHECK_END;
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            else
                selected_streams[i] = ret;
            ret = 0;
        } else {
            selected_streams[i] = 1;
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        }
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    }

    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);
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        ret = read_packets(wctx, fmt_ctx);
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        if (do_show_frames || do_show_packets)
            writer_print_section_footer(wctx);
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        CHECK_END;
    }
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    if (do_show_programs) {
        ret = show_programs(wctx, fmt_ctx);
        CHECK_END;
    }

    if (do_show_streams) {
        ret = show_streams(wctx, fmt_ctx);
        CHECK_END;
    }
    if (do_show_chapters) {
        ret = show_chapters(wctx, fmt_ctx);
        CHECK_END;
    }
    if (do_show_format) {
        ret = show_format(wctx, fmt_ctx);
        CHECK_END;
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    }

end:
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    if (fmt_ctx)
        close_input_file(&fmt_ctx);
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    av_freep(&nb_streams_frames);
    av_freep(&nb_streams_packets);
    av_freep(&selected_streams);
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    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)
{
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    AVBPrint pbuf;
    av_bprint_init(&pbuf, 1, AV_BPRINT_SIZE_UNLIMITED);
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    writer_print_section_header(w, SECTION_ID_PROGRAM_VERSION);
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    print_str("version", FFMPEG_VERSION);
    print_fmt("copyright", "Copyright (c) %d-%d the FFmpeg developers",
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              program_birth_year, CONFIG_THIS_YEAR);
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    print_str("compiler_ident", CC_IDENT);
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    print_str("configuration", FFMPEG_CONFIGURATION);
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    writer_print_section_footer(w);
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    av_bprint_finalize(&pbuf, NULL);
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}

#define SHOW_LIB_VERSION(libname, LIBNAME)                              \
    do {                                                                \
        if (CONFIG_##LIBNAME) {                                         \
            unsigned int version = libname##_version();                 \
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            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);                              \
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            print_str("ident",   LIB##LIBNAME##_IDENT);                 \
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            writer_print_section_footer(w);                             \
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        }                                                               \
    } while (0)

static void ffprobe_show_library_versions(WriterContext *w)
{
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    writer_print_section_header(w, SECTION_ID_LIBRARY_VERSIONS);
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    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);
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    writer_print_section_footer(w);
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}

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

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static void ffprobe_show_pixel_formats(WriterContext *w)
{
    const AVPixFmtDescriptor *pixdesc = NULL;
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    int i, n;
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    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);
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        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");
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        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");
            PRINT_PIX_FMT_FLAG(PSEUDOPAL, "pseudopal");
            PRINT_PIX_FMT_FLAG(ALPHA,     "alpha");
            writer_print_section_footer(w);
        }
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        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);
                print_int("bit_depth", pixdesc->comp[i].depth_minus1 + 1);
                writer_print_section_footer(w);
            }
            writer_print_section_footer(w);
        }
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        writer_print_section_footer(w);
    }
    writer_print_section_footer(w);
}

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static int opt_format(void *optctx, const char *opt, const char *arg)
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{
    iformat = av_find_input_format(arg);
    if (!iformat) {
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        av_log(NULL, AV_LOG_ERROR, "Unknown input format: %s\n", arg);
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        return AVERROR(EINVAL);
2741
    }
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    return 0;
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}

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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);
        }
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        av_dict_free(&entries);
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        av_free(section_name);

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

    return ret;
}

2829
static int opt_show_format_entry(void *optctx, const char *opt, const char *arg)
2830
{
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    char *buf = av_asprintf("format=%s", arg);
    int ret;

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    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;
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}

2845
static void opt_input_file(void *optctx, const char *arg)
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{
2847
    if (input_filename) {
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        av_log(NULL, AV_LOG_ERROR,
                "Argument '%s' provided as input filename, but '%s' was already specified.\n",
                arg, input_filename);
2851
        exit_program(1);
2852
    }
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    if (!strcmp(arg, "-"))
        arg = "pipe:";
    input_filename = arg;
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}

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static int opt_input_file_i(void *optctx, const char *opt, const char *arg)
{
    opt_input_file(optctx, arg);
    return 0;
}

2864
void show_help_default(const char *opt, const char *arg)
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{
2866
    av_log_set_callback(log_callback_help);
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    show_usage();
2868
    show_help_options(options, "Main options:", 0, 0, 0);
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    printf("\n");
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    show_help_children(avformat_get_class(), AV_OPT_FLAG_DECODING_PARAM);
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}

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/**
 * 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 {
            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++;

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    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;
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    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);
}

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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;
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    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;
}

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static int opt_show_versions(const char *opt, const char *arg)
{
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    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;
}

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#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;                                                       \
    }

3065
DEFINE_OPT_SHOW_SECTION(chapters,         CHAPTERS);
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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);
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DEFINE_OPT_SHOW_SECTION(pixel_formats,    PIXEL_FORMATS);
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DEFINE_OPT_SHOW_SECTION(program_version,  PROGRAM_VERSION);
DEFINE_OPT_SHOW_SECTION(streams,          STREAMS);
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DEFINE_OPT_SHOW_SECTION(programs,         PROGRAMS);
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static const OptionDef real_options[] = {
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#include "cmdutils_common_opts.h"
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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" },
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    { "sexagesimal", OPT_BOOL,  {&use_value_sexagesimal_format},
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      "use sexagesimal format HOURS:MM:SS.MICROSECONDS for time units" },
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    { "pretty", 0, {.func_arg = opt_pretty},
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      "prettify the format of displayed values, make it more human readable" },
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    { "print_format", OPT_STRING | HAS_ARG, {(void*)&print_format},
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      "set the output printing format (available formats are: default, compact, csv, flat, ini, json, xml)", "format" },
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    { "of", OPT_STRING | HAS_ARG, {(void*)&print_format}, "alias for -print_format", "format" },
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    { "select_streams", OPT_STRING | HAS_ARG, {(void*)&stream_specifier}, "select the specified streams", "stream_specifier" },
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    { "sections", OPT_EXIT, {.func_arg = opt_sections}, "print sections structure and section information, and exit" },
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    { "show_data",    OPT_BOOL, {(void*)&do_show_data}, "show packets data" },
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    { "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" },
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    { "show_format_entry", HAS_ARG, {.func_arg = opt_show_format_entry},
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      "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" },
    { "show_packets", 0, {(void*)&opt_show_packets}, "show packets info" },
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    { "show_programs", 0, {(void*)&opt_show_programs}, "show programs info" },
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    { "show_streams", 0, {(void*)&opt_show_streams}, "show streams info" },
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    { "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" },
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    { "show_versions",         0, {(void*)&opt_show_versions}, "show program and library versions" },
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    { "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" },
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    { "bitexact", OPT_BOOL, {&do_bitexact}, "force bitexact output" },
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    { "read_intervals", HAS_ARG, {.func_arg = opt_read_intervals}, "set read intervals", "read_intervals" },
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    { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {.func_arg = opt_default}, "generic catch all option", "" },
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    { "i", HAS_ARG, {.func_arg = opt_input_file_i}, "read specified file", "input_file"},
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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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int main(int argc, char **argv)
{
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    const Writer *w;
    WriterContext *wctx;
    char *buf;
    char *w_name = NULL, *w_args = NULL;
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    int ret, i;
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    av_log_set_flags(AV_LOG_SKIP_REPEATED);
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    register_exit(ffprobe_cleanup);
3147

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    options = real_options;
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    parse_loglevel(argc, argv, options);
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    av_register_all();
3151
    avformat_network_init();
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    init_opts();
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#if CONFIG_AVDEVICE
    avdevice_register_all();
#endif
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3157
    show_banner(argc, argv, options);
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    parse_options(NULL, argc, argv, options, opt_input_file);
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    /* mark things to show, based on -show_entries */
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    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);
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    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);
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    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);
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    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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    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;
    }
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    w_name = av_strtok(print_format, "=", &buf);
    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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    }

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

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        writer_print_section_header(wctx, SECTION_ID_ROOT);
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        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 &&
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            ((do_show_format || do_show_programs || do_show_streams || do_show_chapters || do_show_packets || do_show_error) ||
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             (!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);
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        } else if (input_filename) {
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            ret = probe_file(wctx, input_filename);
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            if (ret < 0 && do_show_error)
                show_error(wctx, ret);
        }
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        writer_print_section_footer(wctx);
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        writer_close(&wctx);
    }
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end:
    av_freep(&print_format);
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    av_freep(&read_intervals);
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    av_hash_freep(&hash);
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    uninit_opts();
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    for (i = 0; i < FF_ARRAY_ELEMS(sections); i++)
        av_dict_free(&(sections[i].entries_to_show));
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    avformat_network_deinit();

3265
    return ret < 0;
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}