movenc.h 7.16 KB
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/*
 * MOV, 3GP, MP4 muxer
 * Copyright (c) 2003 Thomas Raivio
 * Copyright (c) 2004 Gildas Bazin <gbazin at videolan dot org>
 * Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>
 *
 * 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
 */

#ifndef AVFORMAT_MOVENC_H
#define AVFORMAT_MOVENC_H

#include "avformat.h"
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#include "movenccenc.h"
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#define MOV_FRAG_INFO_ALLOC_INCREMENT 64
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#define MOV_INDEX_CLUSTER_SIZE 1024
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#define MOV_TIMESCALE 1000

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#define RTP_MAX_PACKET_SIZE 1450

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#define MODE_MP4  0x01
#define MODE_MOV  0x02
#define MODE_3GP  0x04
#define MODE_PSP  0x08 // example working PSP command line:
// ffmpeg -i testinput.avi  -f psp -r 14.985 -s 320x240 -b 768 -ar 24000 -ab 32 M4V00001.MP4
#define MODE_3G2  0x10
#define MODE_IPOD 0x20
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#define MODE_ISM  0x40
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#define MODE_F4V  0x80
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typedef struct MOVIentry {
    uint64_t     pos;
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    int64_t      dts;
    unsigned int size;
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    unsigned int samples_in_chunk;
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    unsigned int chunkNum;              ///< Chunk number if the current entry is a chunk start otherwise 0
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    unsigned int entries;
    int          cts;
#define MOV_SYNC_SAMPLE         0x0001
#define MOV_PARTIAL_SYNC_SAMPLE 0x0002
    uint32_t     flags;
} MOVIentry;

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typedef struct HintSample {
    uint8_t *data;
    int size;
    int sample_number;
    int offset;
    int own_data;
} HintSample;

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typedef struct HintSampleQueue {
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    int size;
    int len;
    HintSample *samples;
} HintSampleQueue;

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typedef struct MOVFragmentInfo {
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    int64_t offset;
    int64_t time;
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    int64_t duration;
    int64_t tfrf_offset;
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    int size;
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} MOVFragmentInfo;

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typedef struct MOVTrack {
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    int         mode;
    int         entry;
    unsigned    timescale;
    uint64_t    time;
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    int64_t     track_duration;
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    int         last_sample_is_subtitle_end;
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    long        sample_count;
    long        sample_size;
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    long        chunkCount;
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    int         has_keyframes;
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#define MOV_TRACK_CTTS         0x0001
#define MOV_TRACK_STPS         0x0002
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#define MOV_TRACK_ENABLED      0x0004
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    uint32_t    flags;
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#define MOV_TIMECODE_FLAG_DROPFRAME     0x0001
#define MOV_TIMECODE_FLAG_24HOURSMAX    0x0002
#define MOV_TIMECODE_FLAG_ALLOWNEGATIVE 0x0004
    uint32_t    timecode_flags;
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    int         language;
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    int         track_id;
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    int         tag; ///< stsd fourcc
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    AVStream        *st;
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    AVCodecParameters *par;
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    int multichannel_as_mono;
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    int         vos_len;
    uint8_t     *vos_data;
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    MOVIentry   *cluster;
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    unsigned    cluster_capacity;
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    int         audio_vbr;
    int         height; ///< active picture (w/o VBI) height for D-10/IMX
    uint32_t    tref_tag;
    int         tref_id; ///< trackID of the referenced track
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    int64_t     start_dts;
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    int64_t     start_cts;
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    int64_t     end_pts;
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    int         end_reliable;
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    int         hint_track;   ///< the track that hints this track, -1 if no hint track is set
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    int         src_track;    ///< the track that this hint (or tmcd) track describes
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    AVFormatContext *rtp_ctx; ///< the format context for the hinting rtp muxer
    uint32_t    prev_rtp_ts;
    int64_t     cur_rtp_ts_unwrapped;
    uint32_t    max_packet_size;
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    int64_t     default_duration;
    uint32_t    default_sample_flags;
    uint32_t    default_size;
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    HintSampleQueue sample_queue;
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    AVIOContext *mdat_buf;
    int64_t     data_offset;
    int64_t     frag_start;
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    int         frag_discont;
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    int         entries_flushed;
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    int         nb_frag_info;
    MOVFragmentInfo *frag_info;
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    unsigned    frag_info_capacity;
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    struct {
        int     first_packet_seq;
        int     first_packet_entry;
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        int     first_packet_seen;
        int     first_frag_written;
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        int     packet_seq;
        int     packet_entry;
        int     slices;
    } vc1_info;
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    void       *eac3_priv;
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    MOVMuxCencContext cenc;
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    uint32_t palette[AVPALETTE_COUNT];
    int pal_done;

    int is_unaligned_qt_rgb;
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} MOVTrack;

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typedef enum {
    MOV_ENC_NONE = 0,
    MOV_ENC_CENC_AES_CTR,
} MOVEncryptionScheme;

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typedef struct MOVMuxContext {
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    const AVClass *av_class;
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    int     mode;
    int64_t time;
    int     nb_streams;
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    int     nb_meta_tmcd;  ///< number of new created tmcd track based on metadata (aka not data copy)
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    int     chapter_track; ///< qt chapter track number
    int64_t mdat_pos;
    uint64_t mdat_size;
    MOVTrack *tracks;
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    int flags;
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    int rtp_flags;
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    int iods_skip;
    int iods_video_profile;
    int iods_audio_profile;
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    int moov_written;
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    int fragments;
    int max_fragment_duration;
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    int min_fragment_duration;
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    int max_fragment_size;
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    int ism_lookahead;
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    AVIOContext *mdat_buf;
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    int first_trun;
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    int video_track_timescale;
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    int reserved_moov_size; ///< 0 for disabled, -1 for automatic, size otherwise
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    int64_t reserved_header_pos;
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    char *major_brand;
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    int per_stream_grouping;
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    AVFormatContext *fc;
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    int use_editlist;
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    float gamma;
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    int frag_interleave;
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    int missing_duration_warned;
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    char *encryption_scheme_str;
    MOVEncryptionScheme encryption_scheme;
    uint8_t *encryption_key;
    int encryption_key_len;
    uint8_t *encryption_kid;
    int encryption_kid_len;

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    int need_rewrite_extradata;

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} MOVMuxContext;

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#define FF_MOV_FLAG_RTP_HINT              (1 <<  0)
#define FF_MOV_FLAG_FRAGMENT              (1 <<  1)
#define FF_MOV_FLAG_EMPTY_MOOV            (1 <<  2)
#define FF_MOV_FLAG_FRAG_KEYFRAME         (1 <<  3)
#define FF_MOV_FLAG_SEPARATE_MOOF         (1 <<  4)
#define FF_MOV_FLAG_FRAG_CUSTOM           (1 <<  5)
#define FF_MOV_FLAG_ISML                  (1 <<  6)
#define FF_MOV_FLAG_FASTSTART             (1 <<  7)
#define FF_MOV_FLAG_OMIT_TFHD_OFFSET      (1 <<  8)
#define FF_MOV_FLAG_DISABLE_CHPL          (1 <<  9)
#define FF_MOV_FLAG_DEFAULT_BASE_MOOF     (1 << 10)
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#define FF_MOV_FLAG_DASH                  (1 << 11)
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#define FF_MOV_FLAG_FRAG_DISCONT          (1 << 12)
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#define FF_MOV_FLAG_DELAY_MOOV            (1 << 13)
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#define FF_MOV_FLAG_GLOBAL_SIDX           (1 << 14)
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#define FF_MOV_FLAG_WRITE_COLR            (1 << 15)
#define FF_MOV_FLAG_WRITE_GAMA            (1 << 16)
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#define FF_MOV_FLAG_USE_MDTA              (1 << 17)
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int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt);

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int ff_mov_init_hinting(AVFormatContext *s, int index, int src_index);
int ff_mov_add_hinted_packet(AVFormatContext *s, AVPacket *pkt,
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                             int track_index, int sample,
                             uint8_t *sample_data, int sample_size);
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void ff_mov_close_hinting(MOVTrack *track);

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#endif /* AVFORMAT_MOVENC_H */