movenc.h 5.09 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>
 *
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 * This file is part of Libav.
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 *
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 * Libav is free software; you can redistribute it and/or
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 * 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.
 *
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 * Libav is distributed in the hope that it will be useful,
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 * 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
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 * License along with Libav; if not, write to the Free Software
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 * 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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#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:
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// avconv -i testinput.avi  -f psp -r 14.985 -s 320x240 -b 768 -ar 24000 -ab 32 M4V00001.MP4
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#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 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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} 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;
    long        sample_count;
    long        sample_size;
    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;
    int         language;
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    int         track_id;
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    int         tag; ///< stsd fourcc
    AVCodecContext *enc;

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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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    int         hint_track;   ///< the track that hints this track, -1 if no hint track is set
    int         src_track;    ///< the track that this hint track describes
    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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    int64_t     tfrf_offset;
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    int         nb_frag_info;
    MOVFragmentInfo *frag_info;
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    unsigned    frag_info_capacity;
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    struct {
        int64_t struct_offset;
        int     first_packet_seq;
        int     first_packet_entry;
        int     packet_seq;
        int     packet_entry;
        int     slices;
    } vc1_info;
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} MOVTrack;

typedef struct MOVMuxContext {
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    const AVClass *av_class;
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    int     mode;
    int64_t time;
    int     nb_streams;
    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 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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    int64_t reserved_moov_pos;
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    char *major_brand;
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} MOVMuxContext;

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#define FF_MOV_FLAG_RTP_HINT 1
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#define FF_MOV_FLAG_FRAGMENT 2
#define FF_MOV_FLAG_EMPTY_MOOV 4
#define FF_MOV_FLAG_FRAG_KEYFRAME 8
#define FF_MOV_FLAG_SEPARATE_MOOF 16
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#define FF_MOV_FLAG_FRAG_CUSTOM 32
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#define FF_MOV_FLAG_ISML 64
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#define FF_MOV_FLAG_FASTSTART 128
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#define FF_MOV_FLAG_OMIT_TFHD_OFFSET 256
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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 */