| /* | |
| * 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/ambient_viewing_environment.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; | |
| unsigned int duration; | |
| } MOVStts; | |
| typedef struct MOVCtts { | |
| unsigned int count; | |
| int duration; | |
| } MOVCtts; | |
| 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; | |
| // Index of the first sample/trun in the fragment. | |
| int index_base; | |
| int index_entry; | |
| MOVEncryptionIndex *encryption_index; | |
| int stsd_id; // current fragment stsd_id | |
| } 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 refcount; | |
| int pb_is_copied; | |
| int id; ///< AVStream id | |
| 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; | |
| MOVCtts *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; | |
| unsigned 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 | |
| uint8_t tmcd_nb_frames; ///< tmcd number of frames per tick / second | |
| 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; | |
| unsigned int sync_group_count; | |
| MOVSbgp *sync_group; | |
| uint8_t *sgpd_sync; | |
| uint32_t sgpd_sync_count; | |
| int32_t *sample_offsets; | |
| int sample_offsets_count; | |
| int *open_key_samples; | |
| int open_key_samples_count; | |
| uint32_t min_sample_duration; | |
| 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; | |
| AVAmbientViewingEnvironment *ambient; | |
| size_t ambient_size; | |
| uint32_t format; | |
| int has_sidx; // If there is an sidx entry for this stream. | |
| struct { | |
| struct AVAESCTR* aes_ctr; | |
| struct AVAES *aes_ctx; | |
| unsigned int per_sample_iv_size; // Either 0, 8, or 16. | |
| AVEncryptionInfo *default_encrypted_sample; | |
| MOVEncryptionIndex *encryption_index; | |
| } cenc; | |
| struct IAMFDemuxContext *iamf; | |
| int iamf_stream_offset; | |
| } MOVStreamContext; | |
| typedef struct HEIFItem { | |
| AVStream *st; | |
| char *name; | |
| int item_id; | |
| int64_t extent_length; | |
| int64_t extent_offset; | |
| int width; | |
| int height; | |
| int type; | |
| int is_idat_relative; | |
| } HEIFItem; | |
| typedef struct HEIFGrid { | |
| HEIFItem *item; | |
| HEIFItem **tile_item_list; | |
| int16_t *tile_id_list; | |
| int nb_tiles; | |
| } HEIFGrid; | |
| 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_iloc; ///< 'iloc' atom has been found | |
| int found_iinf; ///< 'iinf' 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 advanced_editlist_autodisabled; | |
| 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; | |
| int use_tfdt; | |
| 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; | |
| void *audible_key; | |
| int audible_key_size; | |
| void *audible_iv; | |
| int audible_iv_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 | |
| int have_read_mfra_size; | |
| uint32_t mfra_size; | |
| uint32_t max_stts_delta; | |
| int primary_item_id; | |
| int cur_item_id; | |
| HEIFItem *heif_item; | |
| int nb_heif_item; | |
| HEIFGrid *heif_grid; | |
| int nb_heif_grid; | |
| int thmb_item_id; | |
| int64_t idat_offset; | |
| int interleaved_read; | |
| } MOVContext; | |
| int ff_mp4_read_descr_len(AVIOContext *pb); | |
| int ff_mp4_read_descr(void *logctx, AVIOContext *pb, int *tag); | |
| int ff_mp4_read_dec_config_descr(void *logctx, 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); | |
| } | |
| #define MOV_ISMV_TTML_TAG MKTAG('d', 'f', 'x', 'p') | |
| #define MOV_MP4_TTML_TAG MKTAG('s', 't', 'p', 'p') | |
| #define MOV_MP4_FPCM_TAG MKTAG('f', 'p', 'c', 'm') | |
| #define MOV_MP4_IPCM_TAG MKTAG('i', 'p', 'c', 'm') | |
| struct MP4TrackKindValueMapping { | |
| int disposition; | |
| const char *value; | |
| }; | |
| struct MP4TrackKindMapping { | |
| const char *scheme_uri; | |
| const struct MP4TrackKindValueMapping *value_maps; | |
| }; | |
| extern const struct MP4TrackKindMapping ff_mov_track_kind_table[]; | |
| #endif /* AVFORMAT_ISOM_H */ |