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  1. /*
  2.  * MOV, 3GP, MP4 muxer
  3.  * Copyright (c) 2003 Thomas Raivio
  4.  * Copyright (c) 2004 Gildas Bazin <gbazin at videolan dot org>
  5.  * Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>
  6.  *
  7.  * This file is part of FFmpeg.
  8.  *
  9.  * FFmpeg is free software; you can redistribute it and/or
  10.  * modify it under the terms of the GNU Lesser General Public
  11.  * License as published by the Free Software Foundation; either
  12.  * version 2.1 of the License, or (at your option) any later version.
  13.  *
  14.  * FFmpeg is distributed in the hope that it will be useful,
  15.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17.  * Lesser General Public License for more details.
  18.  *
  19.  * You should have received a copy of the GNU Lesser General Public
  20.  * License along with FFmpeg; if not, write to the Free Software
  21.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  22.  */
  23.  
  24. #ifndef AVFORMAT_MOVENC_H
  25. #define AVFORMAT_MOVENC_H
  26.  
  27. #include "avformat.h"
  28.  
  29. #define MOV_FRAG_INFO_ALLOC_INCREMENT 64
  30. #define MOV_INDEX_CLUSTER_SIZE 1024
  31. #define MOV_TIMESCALE 1000
  32.  
  33. #define RTP_MAX_PACKET_SIZE 1450
  34.  
  35. #define MODE_MP4  0x01
  36. #define MODE_MOV  0x02
  37. #define MODE_3GP  0x04
  38. #define MODE_PSP  0x08 // example working PSP command line:
  39. // ffmpeg -i testinput.avi  -f psp -r 14.985 -s 320x240 -b 768 -ar 24000 -ab 32 M4V00001.MP4
  40. #define MODE_3G2  0x10
  41. #define MODE_IPOD 0x20
  42. #define MODE_ISM  0x40
  43. #define MODE_F4V  0x80
  44.  
  45. typedef struct MOVIentry {
  46.     uint64_t     pos;
  47.     int64_t      dts;
  48.     unsigned int size;
  49.     unsigned int samples_in_chunk;
  50.     unsigned int chunkNum;              ///< Chunk number if the current entry is a chunk start otherwise 0
  51.     unsigned int entries;
  52.     int          cts;
  53. #define MOV_SYNC_SAMPLE         0x0001
  54. #define MOV_PARTIAL_SYNC_SAMPLE 0x0002
  55.     uint32_t     flags;
  56. } MOVIentry;
  57.  
  58. typedef struct HintSample {
  59.     uint8_t *data;
  60.     int size;
  61.     int sample_number;
  62.     int offset;
  63.     int own_data;
  64. } HintSample;
  65.  
  66. typedef struct HintSampleQueue {
  67.     int size;
  68.     int len;
  69.     HintSample *samples;
  70. } HintSampleQueue;
  71.  
  72. typedef struct MOVFragmentInfo {
  73.     int64_t offset;
  74.     int64_t time;
  75.     int64_t duration;
  76.     int64_t tfrf_offset;
  77. } MOVFragmentInfo;
  78.  
  79. typedef struct MOVTrack {
  80.     int         mode;
  81.     int         entry;
  82.     unsigned    timescale;
  83.     uint64_t    time;
  84.     int64_t     track_duration;
  85.     int         last_sample_is_subtitle_end;
  86.     long        sample_count;
  87.     long        sample_size;
  88.     long        chunkCount;
  89.     int         has_keyframes;
  90. #define MOV_TRACK_CTTS         0x0001
  91. #define MOV_TRACK_STPS         0x0002
  92. #define MOV_TRACK_ENABLED      0x0004
  93.     uint32_t    flags;
  94. #define MOV_TIMECODE_FLAG_DROPFRAME     0x0001
  95. #define MOV_TIMECODE_FLAG_24HOURSMAX    0x0002
  96. #define MOV_TIMECODE_FLAG_ALLOWNEGATIVE 0x0004
  97.     uint32_t    timecode_flags;
  98.     int         language;
  99.     int         track_id;
  100.     int         tag; ///< stsd fourcc
  101.     AVStream    *st;
  102.     AVCodecContext *enc;
  103.  
  104.     int         vos_len;
  105.     uint8_t     *vos_data;
  106.     MOVIentry   *cluster;
  107.     unsigned    cluster_capacity;
  108.     int         audio_vbr;
  109.     int         height; ///< active picture (w/o VBI) height for D-10/IMX
  110.     uint32_t    tref_tag;
  111.     int         tref_id; ///< trackID of the referenced track
  112.     int64_t     start_dts;
  113.  
  114.     int         hint_track;   ///< the track that hints this track, -1 if no hint track is set
  115.     int         src_track;    ///< the track that this hint (or tmcd) track describes
  116.     AVFormatContext *rtp_ctx; ///< the format context for the hinting rtp muxer
  117.     uint32_t    prev_rtp_ts;
  118.     int64_t     cur_rtp_ts_unwrapped;
  119.     uint32_t    max_packet_size;
  120.  
  121.     int64_t     default_duration;
  122.     uint32_t    default_sample_flags;
  123.     uint32_t    default_size;
  124.  
  125.     HintSampleQueue sample_queue;
  126.  
  127.     AVIOContext *mdat_buf;
  128.     int64_t     data_offset;
  129.     int64_t     frag_start;
  130.     int64_t     tfrf_offset;
  131.  
  132.     int         nb_frag_info;
  133.     MOVFragmentInfo *frag_info;
  134.     unsigned    frag_info_capacity;
  135.  
  136.     struct {
  137.         int64_t struct_offset;
  138.         int     first_packet_seq;
  139.         int     first_packet_entry;
  140.         int     packet_seq;
  141.         int     packet_entry;
  142.         int     slices;
  143.     } vc1_info;
  144. } MOVTrack;
  145.  
  146. typedef struct MOVMuxContext {
  147.     const AVClass *av_class;
  148.     int     mode;
  149.     int64_t time;
  150.     int     nb_streams;
  151.     int     nb_meta_tmcd;  ///< number of new created tmcd track based on metadata (aka not data copy)
  152.     int     chapter_track; ///< qt chapter track number
  153.     int64_t mdat_pos;
  154.     uint64_t mdat_size;
  155.     MOVTrack *tracks;
  156.  
  157.     int flags;
  158.     int rtp_flags;
  159.  
  160.     int iods_skip;
  161.     int iods_video_profile;
  162.     int iods_audio_profile;
  163.  
  164.     int fragments;
  165.     int max_fragment_duration;
  166.     int min_fragment_duration;
  167.     int max_fragment_size;
  168.     int ism_lookahead;
  169.     AVIOContext *mdat_buf;
  170.  
  171.     int use_editlist;
  172.     int video_track_timescale;
  173.  
  174.     int reserved_moov_size; ///< 0 for disabled, -1 for automatic, size otherwise
  175.     int64_t reserved_moov_pos;
  176. } MOVMuxContext;
  177.  
  178. #define FF_MOV_FLAG_RTP_HINT 1
  179. #define FF_MOV_FLAG_FRAGMENT 2
  180. #define FF_MOV_FLAG_EMPTY_MOOV 4
  181. #define FF_MOV_FLAG_FRAG_KEYFRAME 8
  182. #define FF_MOV_FLAG_SEPARATE_MOOF 16
  183. #define FF_MOV_FLAG_FRAG_CUSTOM 32
  184. #define FF_MOV_FLAG_ISML 64
  185. #define FF_MOV_FLAG_FASTSTART 128
  186. #define FF_MOV_FLAG_OMIT_TFHD_OFFSET 256
  187.  
  188. int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt);
  189.  
  190. int ff_mov_init_hinting(AVFormatContext *s, int index, int src_index);
  191. int ff_mov_add_hinted_packet(AVFormatContext *s, AVPacket *pkt,
  192.                              int track_index, int sample,
  193.                              uint8_t *sample_data, int sample_size);
  194. void ff_mov_close_hinting(MOVTrack *track);
  195.  
  196. #endif /* AVFORMAT_MOVENC_H */
  197.