384 lines
12 KiB
C
384 lines
12 KiB
C
|
/*
|
||
|
|
* ISO Media common code
|
||
|
|
* copyright (c) 2001 Fabrice Bellard
|
||
|
|
* copyright (c) 2002 Francois Revol <revol@free.fr>
|
||
|
|
* copyright (c) 2006 Baptiste Coudurier <baptiste.coudurier@free.fr>
|
||
|
|
*
|
||
|
|
* 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_ISOM_H
|
||
|
|
#define AVFORMAT_ISOM_H
|
||
|
|
|
||
|
|
#include <stddef.h>
|
||
|
|
#include <stdint.h>
|
||
|
|
|
||
|
|
#include "libavutil/encryption_info.h"
|
||
|
|
#include "libavutil/mastering_display_metadata.h"
|
||
|
|
#include "libavutil/spherical.h"
|
||
|
|
#include "libavutil/stereo3d.h"
|
||
|
|
|
||
|
|
#include "avio.h"
|
||
|
|
#include "internal.h"
|
||
|
|
#include "dv.h"
|
||
|
|
|
||
|
|
/* isom.c */
|
||
|
|
extern const AVCodecTag ff_mp4_obj_type[];
|
||
|
|
extern const AVCodecTag ff_codec_movvideo_tags[];
|
||
|
|
extern const AVCodecTag ff_codec_movaudio_tags[];
|
||
|
|
extern const AVCodecTag ff_codec_movsubtitle_tags[];
|
||
|
|
extern const AVCodecTag ff_codec_movdata_tags[];
|
||
|
|
|
||
|
|
int ff_mov_iso639_to_lang(const char lang[4], int mp4);
|
||
|
|
int ff_mov_lang_to_iso639(unsigned code, char to[4]);
|
||
|
|
|
||
|
|
struct AVAESCTR;
|
||
|
|
|
||
|
|
/* the QuickTime file format is quite convoluted...
|
||
|
|
* it has lots of index tables, each indexing something in another one...
|
||
|
|
* Here we just use what is needed to read the chunks
|
||
|
|
*/
|
||
|
|
|
||
|
|
typedef struct MOVStts {
|
||
|
|
unsigned int count;
|
||
|
|
int duration;
|
||
|
|
} MOVStts;
|
||
|
|
|
||
|
|
typedef struct MOVStsc {
|
||
|
|
int first;
|
||
|
|
int count;
|
||
|
|
int id;
|
||
|
|
} MOVStsc;
|
||
|
|
|
||
|
|
typedef struct MOVElst {
|
||
|
|
int64_t duration;
|
||
|
|
int64_t time;
|
||
|
|
float rate;
|
||
|
|
} MOVElst;
|
||
|
|
|
||
|
|
typedef struct MOVDref {
|
||
|
|
uint32_t type;
|
||
|
|
char *path;
|
||
|
|
char *dir;
|
||
|
|
char volume[28];
|
||
|
|
char filename[64];
|
||
|
|
int16_t nlvl_to, nlvl_from;
|
||
|
|
} MOVDref;
|
||
|
|
|
||
|
|
typedef struct MOVAtom {
|
||
|
|
uint32_t type;
|
||
|
|
int64_t size; /* total size (excluding the size and type fields) */
|
||
|
|
} MOVAtom;
|
||
|
|
|
||
|
|
struct MOVParseTableEntry;
|
||
|
|
|
||
|
|
typedef struct MOVFragment {
|
||
|
|
int found_tfhd;
|
||
|
|
unsigned track_id;
|
||
|
|
uint64_t base_data_offset;
|
||
|
|
uint64_t moof_offset;
|
||
|
|
uint64_t implicit_offset;
|
||
|
|
unsigned stsd_id;
|
||
|
|
unsigned duration;
|
||
|
|
unsigned size;
|
||
|
|
unsigned flags;
|
||
|
|
} MOVFragment;
|
||
|
|
|
||
|
|
typedef struct MOVTrackExt {
|
||
|
|
unsigned track_id;
|
||
|
|
unsigned stsd_id;
|
||
|
|
unsigned duration;
|
||
|
|
unsigned size;
|
||
|
|
unsigned flags;
|
||
|
|
} MOVTrackExt;
|
||
|
|
|
||
|
|
typedef struct MOVSbgp {
|
||
|
|
unsigned int count;
|
||
|
|
unsigned int index;
|
||
|
|
} MOVSbgp;
|
||
|
|
|
||
|
|
typedef struct MOVEncryptionIndex {
|
||
|
|
// Individual encrypted samples. If there are no elements, then the default
|
||
|
|
// settings will be used.
|
||
|
|
unsigned int nb_encrypted_samples;
|
||
|
|
AVEncryptionInfo **encrypted_samples;
|
||
|
|
|
||
|
|
uint8_t* auxiliary_info_sizes;
|
||
|
|
size_t auxiliary_info_sample_count;
|
||
|
|
uint8_t auxiliary_info_default_size;
|
||
|
|
uint64_t* auxiliary_offsets; ///< Absolute seek position
|
||
|
|
size_t auxiliary_offsets_count;
|
||
|
|
} MOVEncryptionIndex;
|
||
|
|
|
||
|
|
typedef struct MOVFragmentStreamInfo {
|
||
|
|
int id;
|
||
|
|
int64_t sidx_pts;
|
||
|
|
int64_t first_tfra_pts;
|
||
|
|
int64_t tfdt_dts;
|
||
|
|
int64_t next_trun_dts;
|
||
|
|
int index_entry;
|
||
|
|
MOVEncryptionIndex *encryption_index;
|
||
|
|
} MOVFragmentStreamInfo;
|
||
|
|
|
||
|
|
typedef struct MOVFragmentIndexItem {
|
||
|
|
int64_t moof_offset;
|
||
|
|
int headers_read;
|
||
|
|
int current;
|
||
|
|
int nb_stream_info;
|
||
|
|
MOVFragmentStreamInfo * stream_info;
|
||
|
|
} MOVFragmentIndexItem;
|
||
|
|
|
||
|
|
typedef struct MOVFragmentIndex {
|
||
|
|
int allocated_size;
|
||
|
|
int complete;
|
||
|
|
int current;
|
||
|
|
int nb_items;
|
||
|
|
MOVFragmentIndexItem * item;
|
||
|
|
} MOVFragmentIndex;
|
||
|
|
|
||
|
|
typedef struct MOVIndexRange {
|
||
|
|
int64_t start;
|
||
|
|
int64_t end;
|
||
|
|
} MOVIndexRange;
|
||
|
|
|
||
|
|
typedef struct MOVStreamContext {
|
||
|
|
AVIOContext *pb;
|
||
|
|
int pb_is_copied;
|
||
|
|
int ffindex; ///< AVStream index
|
||
|
|
int next_chunk;
|
||
|
|
unsigned int chunk_count;
|
||
|
|
int64_t *chunk_offsets;
|
||
|
|
unsigned int stts_count;
|
||
|
|
MOVStts *stts_data;
|
||
|
|
unsigned int sdtp_count;
|
||
|
|
uint8_t *sdtp_data;
|
||
|
|
unsigned int ctts_count;
|
||
|
|
unsigned int ctts_allocated_size;
|
||
|
|
MOVStts *ctts_data;
|
||
|
|
unsigned int stsc_count;
|
||
|
|
MOVStsc *stsc_data;
|
||
|
|
unsigned int stsc_index;
|
||
|
|
int stsc_sample;
|
||
|
|
unsigned int stps_count;
|
||
|
|
unsigned *stps_data; ///< partial sync sample for mpeg-2 open gop
|
||
|
|
MOVElst *elst_data;
|
||
|
|
unsigned int elst_count;
|
||
|
|
int ctts_index;
|
||
|
|
int ctts_sample;
|
||
|
|
unsigned int sample_size; ///< may contain value calculated from stsd or value from stsz atom
|
||
|
|
unsigned int stsz_sample_size; ///< always contains sample size from stsz atom
|
||
|
|
unsigned int sample_count;
|
||
|
|
int *sample_sizes;
|
||
|
|
int keyframe_absent;
|
||
|
|
unsigned int keyframe_count;
|
||
|
|
int *keyframes;
|
||
|
|
int time_scale;
|
||
|
|
int64_t time_offset; ///< time offset of the edit list entries
|
||
|
|
int64_t min_corrected_pts; ///< minimum Composition time shown by the edits excluding empty edits.
|
||
|
|
int current_sample;
|
||
|
|
int64_t current_index;
|
||
|
|
MOVIndexRange* index_ranges;
|
||
|
|
MOVIndexRange* current_index_range;
|
||
|
|
unsigned int bytes_per_frame;
|
||
|
|
unsigned int samples_per_frame;
|
||
|
|
int dv_audio_container;
|
||
|
|
int pseudo_stream_id; ///< -1 means demux all ids
|
||
|
|
int16_t audio_cid; ///< stsd audio compression id
|
||
|
|
unsigned drefs_count;
|
||
|
|
MOVDref *drefs;
|
||
|
|
int dref_id;
|
||
|
|
int timecode_track;
|
||
|
|
int width; ///< tkhd width
|
||
|
|
int height; ///< tkhd height
|
||
|
|
int dts_shift; ///< dts shift when ctts is negative
|
||
|
|
uint32_t palette[256];
|
||
|
|
int has_palette;
|
||
|
|
int64_t data_size;
|
||
|
|
uint32_t tmcd_flags; ///< tmcd track flags
|
||
|
|
int64_t track_end; ///< used for dts generation in fragmented movie files
|
||
|
|
int start_pad; ///< amount of samples to skip due to enc-dec delay
|
||
|
|
unsigned int rap_group_count;
|
||
|
|
MOVSbgp *rap_group;
|
||
|
|
|
||
|
|
int nb_frames_for_fps;
|
||
|
|
int64_t duration_for_fps;
|
||
|
|
|
||
|
|
/** extradata array (and size) for multiple stsd */
|
||
|
|
uint8_t **extradata;
|
||
|
|
int *extradata_size;
|
||
|
|
int last_stsd_index;
|
||
|
|
int stsd_count;
|
||
|
|
int stsd_version;
|
||
|
|
|
||
|
|
int32_t *display_matrix;
|
||
|
|
AVStereo3D *stereo3d;
|
||
|
|
AVSphericalMapping *spherical;
|
||
|
|
size_t spherical_size;
|
||
|
|
AVMasteringDisplayMetadata *mastering;
|
||
|
|
AVContentLightMetadata *coll;
|
||
|
|
size_t coll_size;
|
||
|
|
|
||
|
|
uint32_t format;
|
||
|
|
|
||
|
|
int has_sidx; // If there is an sidx entry for this stream.
|
||
|
|
struct {
|
||
|
|
struct AVAESCTR* aes_ctr;
|
||
|
|
unsigned int per_sample_iv_size; // Either 0, 8, or 16.
|
||
|
|
AVEncryptionInfo *default_encrypted_sample;
|
||
|
|
MOVEncryptionIndex *encryption_index;
|
||
|
|
} cenc;
|
||
|
|
} MOVStreamContext;
|
||
|
|
|
||
|
|
typedef struct MOVContext {
|
||
|
|
const AVClass *class; ///< class for private options
|
||
|
|
AVFormatContext *fc;
|
||
|
|
int time_scale;
|
||
|
|
int64_t duration; ///< duration of the longest track
|
||
|
|
int found_moov; ///< 'moov' atom has been found
|
||
|
|
int found_mdat; ///< 'mdat' atom has been found
|
||
|
|
int found_hdlr_mdta; ///< 'hdlr' atom with type 'mdta' has been found
|
||
|
|
int trak_index; ///< Index of the current 'trak'
|
||
|
|
char **meta_keys;
|
||
|
|
unsigned meta_keys_count;
|
||
|
|
DVDemuxContext *dv_demux;
|
||
|
|
AVFormatContext *dv_fctx;
|
||
|
|
int isom; ///< 1 if file is ISO Media (mp4/3gp)
|
||
|
|
MOVFragment fragment; ///< current fragment in moof atom
|
||
|
|
MOVTrackExt *trex_data;
|
||
|
|
unsigned trex_count;
|
||
|
|
int itunes_metadata; ///< metadata are itunes style
|
||
|
|
int handbrake_version;
|
||
|
|
int *chapter_tracks;
|
||
|
|
unsigned int nb_chapter_tracks;
|
||
|
|
int use_absolute_path;
|
||
|
|
int ignore_editlist;
|
||
|
|
int advanced_editlist;
|
||
|
|
int ignore_chapters;
|
||
|
|
int seek_individually;
|
||
|
|
int64_t next_root_atom; ///< offset of the next root atom
|
||
|
|
int export_all;
|
||
|
|
int export_xmp;
|
||
|
|
int *bitrates; ///< bitrates read before streams creation
|
||
|
|
int bitrates_count;
|
||
|
|
int moov_retry;
|
||
|
|
int use_mfra_for;
|
||
|
|
int has_looked_for_mfra;
|
||
|
|
MOVFragmentIndex frag_index;
|
||
|
|
int atom_depth;
|
||
|
|
unsigned int aax_mode; ///< 'aax' file has been detected
|
||
|
|
uint8_t file_key[20];
|
||
|
|
uint8_t file_iv[20];
|
||
|
|
void *activation_bytes;
|
||
|
|
int activation_bytes_size;
|
||
|
|
void *audible_fixed_key;
|
||
|
|
int audible_fixed_key_size;
|
||
|
|
struct AVAES *aes_decrypt;
|
||
|
|
uint8_t *decryption_key;
|
||
|
|
int decryption_key_len;
|
||
|
|
int enable_drefs;
|
||
|
|
int32_t movie_display_matrix[3][3]; ///< display matrix from mvhd
|
||
|
|
} MOVContext;
|
||
|
|
|
||
|
|
int ff_mp4_read_descr_len(AVIOContext *pb);
|
||
|
|
int ff_mp4_read_descr(AVFormatContext *fc, AVIOContext *pb, int *tag);
|
||
|
|
int ff_mp4_read_dec_config_descr(AVFormatContext *fc, AVStream *st, AVIOContext *pb);
|
||
|
|
void ff_mp4_parse_es_descr(AVIOContext *pb, int *es_id);
|
||
|
|
|
||
|
|
#define MP4ODescrTag 0x01
|
||
|
|
#define MP4IODescrTag 0x02
|
||
|
|
#define MP4ESDescrTag 0x03
|
||
|
|
#define MP4DecConfigDescrTag 0x04
|
||
|
|
#define MP4DecSpecificDescrTag 0x05
|
||
|
|
#define MP4SLDescrTag 0x06
|
||
|
|
|
||
|
|
#define MOV_TFHD_BASE_DATA_OFFSET 0x01
|
||
|
|
#define MOV_TFHD_STSD_ID 0x02
|
||
|
|
#define MOV_TFHD_DEFAULT_DURATION 0x08
|
||
|
|
#define MOV_TFHD_DEFAULT_SIZE 0x10
|
||
|
|
#define MOV_TFHD_DEFAULT_FLAGS 0x20
|
||
|
|
#define MOV_TFHD_DURATION_IS_EMPTY 0x010000
|
||
|
|
#define MOV_TFHD_DEFAULT_BASE_IS_MOOF 0x020000
|
||
|
|
|
||
|
|
#define MOV_TRUN_DATA_OFFSET 0x01
|
||
|
|
#define MOV_TRUN_FIRST_SAMPLE_FLAGS 0x04
|
||
|
|
#define MOV_TRUN_SAMPLE_DURATION 0x100
|
||
|
|
#define MOV_TRUN_SAMPLE_SIZE 0x200
|
||
|
|
#define MOV_TRUN_SAMPLE_FLAGS 0x400
|
||
|
|
#define MOV_TRUN_SAMPLE_CTS 0x800
|
||
|
|
|
||
|
|
#define MOV_FRAG_SAMPLE_FLAG_DEGRADATION_PRIORITY_MASK 0x0000ffff
|
||
|
|
#define MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC 0x00010000
|
||
|
|
#define MOV_FRAG_SAMPLE_FLAG_PADDING_MASK 0x000e0000
|
||
|
|
#define MOV_FRAG_SAMPLE_FLAG_REDUNDANCY_MASK 0x00300000
|
||
|
|
#define MOV_FRAG_SAMPLE_FLAG_DEPENDED_MASK 0x00c00000
|
||
|
|
#define MOV_FRAG_SAMPLE_FLAG_DEPENDS_MASK 0x03000000
|
||
|
|
|
||
|
|
#define MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO 0x02000000
|
||
|
|
#define MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES 0x01000000
|
||
|
|
|
||
|
|
#define MOV_TKHD_FLAG_ENABLED 0x0001
|
||
|
|
#define MOV_TKHD_FLAG_IN_MOVIE 0x0002
|
||
|
|
#define MOV_TKHD_FLAG_IN_PREVIEW 0x0004
|
||
|
|
#define MOV_TKHD_FLAG_IN_POSTER 0x0008
|
||
|
|
|
||
|
|
#define MOV_SAMPLE_DEPENDENCY_UNKNOWN 0x0
|
||
|
|
#define MOV_SAMPLE_DEPENDENCY_YES 0x1
|
||
|
|
#define MOV_SAMPLE_DEPENDENCY_NO 0x2
|
||
|
|
|
||
|
|
|
||
|
|
#define TAG_IS_AVCI(tag) \
|
||
|
|
((tag) == MKTAG('a', 'i', '5', 'p') || \
|
||
|
|
(tag) == MKTAG('a', 'i', '5', 'q') || \
|
||
|
|
(tag) == MKTAG('a', 'i', '5', '2') || \
|
||
|
|
(tag) == MKTAG('a', 'i', '5', '3') || \
|
||
|
|
(tag) == MKTAG('a', 'i', '5', '5') || \
|
||
|
|
(tag) == MKTAG('a', 'i', '5', '6') || \
|
||
|
|
(tag) == MKTAG('a', 'i', '1', 'p') || \
|
||
|
|
(tag) == MKTAG('a', 'i', '1', 'q') || \
|
||
|
|
(tag) == MKTAG('a', 'i', '1', '2') || \
|
||
|
|
(tag) == MKTAG('a', 'i', '1', '3') || \
|
||
|
|
(tag) == MKTAG('a', 'i', '1', '5') || \
|
||
|
|
(tag) == MKTAG('a', 'i', '1', '6') || \
|
||
|
|
(tag) == MKTAG('a', 'i', 'v', 'x') || \
|
||
|
|
(tag) == MKTAG('A', 'V', 'i', 'n'))
|
||
|
|
|
||
|
|
|
||
|
|
int ff_mov_read_esds(AVFormatContext *fc, AVIOContext *pb);
|
||
|
|
|
||
|
|
int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries);
|
||
|
|
void ff_mov_write_chan(AVIOContext *pb, int64_t channel_layout);
|
||
|
|
|
||
|
|
#define FF_MOV_FLAG_MFRA_AUTO -1
|
||
|
|
#define FF_MOV_FLAG_MFRA_DTS 1
|
||
|
|
#define FF_MOV_FLAG_MFRA_PTS 2
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Compute codec id for 'lpcm' tag.
|
||
|
|
* See CoreAudioTypes and AudioStreamBasicDescription at Apple.
|
||
|
|
*/
|
||
|
|
static inline enum AVCodecID ff_mov_get_lpcm_codec_id(int bps, int flags)
|
||
|
|
{
|
||
|
|
/* lpcm flags:
|
||
|
|
* 0x1 = float
|
||
|
|
* 0x2 = big-endian
|
||
|
|
* 0x4 = signed
|
||
|
|
*/
|
||
|
|
return ff_get_pcm_codec_id(bps, flags & 1, flags & 2, flags & 4 ? -1 : 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif /* AVFORMAT_ISOM_H */
|