/* * Copyright (C) 2020-2024 ArtInChip Technology Co. Ltd * * SPDX-License-Identifier: Apache-2.0 * * Author: * Desc: matroska.h */ #ifndef __MATROSKADEC_H__ #define __MATROSKADEC_H__ #include #include #include "aic_parser.h" #include "aic_tag.h" #include "matroska_tag.h" /* EBML version supported */ #define EBML_VERSION 1 /* top-level master-IDs */ #define EBML_ID_HEADER 0x1A45DFA3 /* IDs in the HEADER master */ #define EBML_ID_EBMLVERSION 0x4286 #define EBML_ID_EBMLREADVERSION 0x42F7 #define EBML_ID_EBMLMAXIDLENGTH 0x42F2 #define EBML_ID_EBMLMAXSIZELENGTH 0x42F3 #define EBML_ID_DOCTYPE 0x4282 #define EBML_ID_DOCTYPEVERSION 0x4287 #define EBML_ID_DOCTYPEREADVERSION 0x4285 /* general EBML types */ #define EBML_ID_VOID 0xEC #define EBML_ID_CRC32 0xBF /* * Matroska element IDs, max. 32 bits */ /* toplevel segment */ #define MATROSKA_ID_SEGMENT 0x18538067 /* Matroska top-level master IDs */ #define MATROSKA_ID_INFO 0x1549A966 #define MATROSKA_ID_TRACKS 0x1654AE6B #define MATROSKA_ID_CUES 0x1C53BB6B #define MATROSKA_ID_TAGS 0x1254C367 #define MATROSKA_ID_SEEKHEAD 0x114D9B74 #define MATROSKA_ID_ATTACHMENTS 0x1941A469 #define MATROSKA_ID_CLUSTER 0x1F43B675 #define MATROSKA_ID_CHAPTERS 0x1043A770 /* IDs in the info master */ #define MATROSKA_ID_TIMECODESCALE 0x2AD7B1 #define MATROSKA_ID_DURATION 0x4489 #define MATROSKA_ID_TITLE 0x7BA9 #define MATROSKA_ID_WRITINGAPP 0x5741 #define MATROSKA_ID_MUXINGAPP 0x4D80 #define MATROSKA_ID_DATEUTC 0x4461 #define MATROSKA_ID_SEGMENTUID 0x73A4 /* ID in the tracks master */ #define MATROSKA_ID_TRACKENTRY 0xAE /* IDs in the trackentry master */ #define MATROSKA_ID_TRACKNUMBER 0xD7 #define MATROSKA_ID_TRACKUID 0x73C5 #define MATROSKA_ID_TRACKTYPE 0x83 #define MATROSKA_ID_TRACKVIDEO 0xE0 #define MATROSKA_ID_TRACKAUDIO 0xE1 #define MATROSKA_ID_TRACKOPERATION 0xE2 #define MATROSKA_ID_TRACKCOMBINEPLANES 0xE3 #define MATROSKA_ID_TRACKPLANE 0xE4 #define MATROSKA_ID_TRACKPLANEUID 0xE5 #define MATROSKA_ID_TRACKPLANETYPE 0xE6 #define MATROSKA_ID_CODECID 0x86 #define MATROSKA_ID_CODECPRIVATE 0x63A2 #define MATROSKA_ID_CODECNAME 0x258688 #define MATROSKA_ID_CODECINFOURL 0x3B4040 #define MATROSKA_ID_CODECDOWNLOADURL 0x26B240 #define MATROSKA_ID_CODECDECODEALL 0xAA #define MATROSKA_ID_CODECDELAY 0x56AA #define MATROSKA_ID_SEEKPREROLL 0x56BB #define MATROSKA_ID_TRACKNAME 0x536E #define MATROSKA_ID_TRACKLANGUAGE 0x22B59C #define MATROSKA_ID_TRACKFLAGENABLED 0xB9 #define MATROSKA_ID_TRACKFLAGDEFAULT 0x88 #define MATROSKA_ID_TRACKFLAGFORCED 0x55AA #define MATROSKA_ID_TRACKFLAGLACING 0x9C #define MATROSKA_ID_TRACKMINCACHE 0x6DE7 #define MATROSKA_ID_TRACKMAXCACHE 0x6DF8 #define MATROSKA_ID_TRACKDEFAULTDURATION 0x23E383 #define MATROSKA_ID_TRACKCONTENTENCODINGS 0x6D80 #define MATROSKA_ID_TRACKCONTENTENCODING 0x6240 #define MATROSKA_ID_TRACKTIMECODESCALE 0x23314F #define MATROSKA_ID_TRACKMAXBLKADDID 0x55EE /* IDs in the trackvideo master */ #define MATROSKA_ID_VIDEOFRAMERATE 0x2383E3 #define MATROSKA_ID_VIDEODISPLAYWIDTH 0x54B0 #define MATROSKA_ID_VIDEODISPLAYHEIGHT 0x54BA #define MATROSKA_ID_VIDEOPIXELWIDTH 0xB0 #define MATROSKA_ID_VIDEOPIXELHEIGHT 0xBA #define MATROSKA_ID_VIDEOPIXELCROPB 0x54AA #define MATROSKA_ID_VIDEOPIXELCROPT 0x54BB #define MATROSKA_ID_VIDEOPIXELCROPL 0x54CC #define MATROSKA_ID_VIDEOPIXELCROPR 0x54DD #define MATROSKA_ID_VIDEODISPLAYUNIT 0x54B2 #define MATROSKA_ID_VIDEOFLAGINTERLACED 0x9A #define MATROSKA_ID_VIDEOFIELDORDER 0x9D #define MATROSKA_ID_VIDEOSTEREOMODE 0x53B8 #define MATROSKA_ID_VIDEOALPHAMODE 0x53C0 #define MATROSKA_ID_VIDEOASPECTRATIO 0x54B3 #define MATROSKA_ID_VIDEOCOLORSPACE 0x2EB524 #define MATROSKA_ID_VIDEOCOLOR 0x55B0 #define MATROSKA_ID_VIDEOCOLORMATRIXCOEFF 0x55B1 #define MATROSKA_ID_VIDEOCOLORBITSPERCHANNEL 0x55B2 #define MATROSKA_ID_VIDEOCOLORCHROMASUBHORZ 0x55B3 #define MATROSKA_ID_VIDEOCOLORCHROMASUBVERT 0x55B4 #define MATROSKA_ID_VIDEOCOLORCBSUBHORZ 0x55B5 #define MATROSKA_ID_VIDEOCOLORCBSUBVERT 0x55B6 #define MATROSKA_ID_VIDEOCOLORCHROMASITINGHORZ 0x55B7 #define MATROSKA_ID_VIDEOCOLORCHROMASITINGVERT 0x55B8 #define MATROSKA_ID_VIDEOCOLORRANGE 0x55B9 #define MATROSKA_ID_VIDEOCOLORTRANSFERCHARACTERISTICS 0x55BA #define MATROSKA_ID_VIDEOCOLORPRIMARIES 0x55BB #define MATROSKA_ID_VIDEOCOLORMAXCLL 0x55BC #define MATROSKA_ID_VIDEOCOLORMAXFALL 0x55BD #define MATROSKA_ID_VIDEOCOLORMASTERINGMETA 0x55D0 #define MATROSKA_ID_VIDEOCOLOR_RX 0x55D1 #define MATROSKA_ID_VIDEOCOLOR_RY 0x55D2 #define MATROSKA_ID_VIDEOCOLOR_GX 0x55D3 #define MATROSKA_ID_VIDEOCOLOR_GY 0x55D4 #define MATROSKA_ID_VIDEOCOLOR_BX 0x55D5 #define MATROSKA_ID_VIDEOCOLOR_BY 0x55D6 #define MATROSKA_ID_VIDEOCOLOR_WHITEX 0x55D7 #define MATROSKA_ID_VIDEOCOLOR_WHITEY 0x55D8 #define MATROSKA_ID_VIDEOCOLOR_LUMINANCEMAX 0x55D9 #define MATROSKA_ID_VIDEOCOLOR_LUMINANCEMIN 0x55DA #define MATROSKA_ID_VIDEOPROJECTION 0x7670 #define MATROSKA_ID_VIDEOPROJECTIONTYPE 0x7671 #define MATROSKA_ID_VIDEOPROJECTIONPRIVATE 0x7672 #define MATROSKA_ID_VIDEOPROJECTIONPOSEYAW 0x7673 #define MATROSKA_ID_VIDEOPROJECTIONPOSEPITCH 0x7674 #define MATROSKA_ID_VIDEOPROJECTIONPOSEROLL 0x7675 /* IDs in the trackaudio master */ #define MATROSKA_ID_AUDIOSAMPLINGFREQ 0xB5 #define MATROSKA_ID_AUDIOOUTSAMPLINGFREQ 0x78B5 #define MATROSKA_ID_AUDIOBITDEPTH 0x6264 #define MATROSKA_ID_AUDIOCHANNELS 0x9F /* IDs in the content encoding master */ #define MATROSKA_ID_ENCODINGORDER 0x5031 #define MATROSKA_ID_ENCODINGSCOPE 0x5032 #define MATROSKA_ID_ENCODINGTYPE 0x5033 #define MATROSKA_ID_ENCODINGCOMPRESSION 0x5034 #define MATROSKA_ID_ENCODINGCOMPALGO 0x4254 #define MATROSKA_ID_ENCODINGCOMPSETTINGS 0x4255 #define MATROSKA_ID_ENCODINGENCRYPTION 0x5035 #define MATROSKA_ID_ENCODINGENCAESSETTINGS 0x47E7 #define MATROSKA_ID_ENCODINGENCALGO 0x47E1 #define MATROSKA_ID_ENCODINGENCKEYID 0x47E2 #define MATROSKA_ID_ENCODINGSIGALGO 0x47E5 #define MATROSKA_ID_ENCODINGSIGHASHALGO 0x47E6 #define MATROSKA_ID_ENCODINGSIGKEYID 0x47E4 #define MATROSKA_ID_ENCODINGSIGNATURE 0x47E3 /* ID in the cues master */ #define MATROSKA_ID_POINTENTRY 0xBB /* IDs in the pointentry master */ #define MATROSKA_ID_CUETIME 0xB3 #define MATROSKA_ID_CUETRACKPOSITION 0xB7 /* IDs in the cuetrackposition master */ #define MATROSKA_ID_CUETRACK 0xF7 #define MATROSKA_ID_CUECLUSTERPOSITION 0xF1 #define MATROSKA_ID_CUERELATIVEPOSITION 0xF0 #define MATROSKA_ID_CUEDURATION 0xB2 #define MATROSKA_ID_CUEBLOCKNUMBER 0x5378 /* IDs in the tags master */ #define MATROSKA_ID_TAG 0x7373 #define MATROSKA_ID_SIMPLETAG 0x67C8 #define MATROSKA_ID_TAGNAME 0x45A3 #define MATROSKA_ID_TAGSTRING 0x4487 #define MATROSKA_ID_TAGLANG 0x447A #define MATROSKA_ID_TAGDEFAULT 0x4484 #define MATROSKA_ID_TAGDEFAULT_BUG 0x44B4 #define MATROSKA_ID_TAGTARGETS 0x63C0 #define MATROSKA_ID_TAGTARGETS_TYPE 0x63CA #define MATROSKA_ID_TAGTARGETS_TYPEVALUE 0x68CA #define MATROSKA_ID_TAGTARGETS_TRACKUID 0x63C5 #define MATROSKA_ID_TAGTARGETS_CHAPTERUID 0x63C4 #define MATROSKA_ID_TAGTARGETS_ATTACHUID 0x63C6 /* IDs in the seekhead master */ #define MATROSKA_ID_SEEKENTRY 0x4DBB /* IDs in the seekpoint master */ #define MATROSKA_ID_SEEKID 0x53AB #define MATROSKA_ID_SEEKPOSITION 0x53AC /* IDs in the cluster master */ #define MATROSKA_ID_CLUSTERTIMECODE 0xE7 #define MATROSKA_ID_CLUSTERPOSITION 0xA7 #define MATROSKA_ID_CLUSTERPREVSIZE 0xAB #define MATROSKA_ID_BLOCKGROUP 0xA0 #define MATROSKA_ID_BLOCKADDITIONS 0x75A1 #define MATROSKA_ID_BLOCKMORE 0xA6 #define MATROSKA_ID_BLOCKADDID 0xEE #define MATROSKA_ID_BLOCKADDITIONAL 0xA5 #define MATROSKA_ID_SIMPLEBLOCK 0xA3 /* IDs in the blockgroup master */ #define MATROSKA_ID_BLOCK 0xA1 #define MATROSKA_ID_BLOCKDURATION 0x9B #define MATROSKA_ID_BLOCKREFERENCE 0xFB #define MATROSKA_ID_CODECSTATE 0xA4 #define MATROSKA_ID_DISCARDPADDING 0x75A2 /* IDs in the attachments master */ #define MATROSKA_ID_ATTACHEDFILE 0x61A7 #define MATROSKA_ID_FILEDESC 0x467E #define MATROSKA_ID_FILENAME 0x466E #define MATROSKA_ID_FILEMIMETYPE 0x4660 #define MATROSKA_ID_FILEDATA 0x465C #define MATROSKA_ID_FILEUID 0x46AE /* IDs in the chapters master */ #define MATROSKA_ID_EDITIONENTRY 0x45B9 #define MATROSKA_ID_CHAPTERATOM 0xB6 #define MATROSKA_ID_CHAPTERTIMESTART 0x91 #define MATROSKA_ID_CHAPTERTIMEEND 0x92 #define MATROSKA_ID_CHAPTERDISPLAY 0x80 #define MATROSKA_ID_CHAPSTRING 0x85 #define MATROSKA_ID_CHAPLANG 0x437C #define MATROSKA_ID_CHAPCOUNTRY 0x437E #define MATROSKA_ID_EDITIONUID 0x45BC #define MATROSKA_ID_EDITIONFLAGHIDDEN 0x45BD #define MATROSKA_ID_EDITIONFLAGDEFAULT 0x45DB #define MATROSKA_ID_EDITIONFLAGORDERED 0x45DD #define MATROSKA_ID_CHAPTERUID 0x73C4 #define MATROSKA_ID_CHAPTERFLAGHIDDEN 0x98 #define MATROSKA_ID_CHAPTERFLAGENABLED 0x4598 #define MATROSKA_ID_CHAPTERPHYSEQUIV 0x63C3 /* max. depth in the EBML tree structure */ #define EBML_MAX_DEPTH 16 #define MATROSKA_VIDEO_STEREO_PLANE_COUNT 3 #define EBML_UNKNOWN_LENGTH UINT64_MAX /* ebml unknown length, in uint64_t */ /* Indicates that some error checks still need to be performed */ #define NEEDS_CHECKING 2 /* return value of ebml_parse when the syntax level used for parsing ended.*/ #define LEVEL_ENDED 3 /* In non-seekable mode, if more than SKIP_THRESHOLD of unkown, * potentially damaged data is encountered, it is considered an error. */ #define SKIP_THRESHOLD 1024 * 1024 /* An unknown element is considered equivalent to this many bytes of * unknown data for the SKIP_THRESHOLD check. */ #define UNKNOWN_EQUIV 50 * 1024 #define EBML_SKIP_AUDIO_TRACK 0x01 #define EBML_SKIP_VIDEO_TRACK 0x02 typedef enum { MATROSKA_TRACK_TYPE_NONE = 0x0, MATROSKA_TRACK_TYPE_VIDEO = 0x1, MATROSKA_TRACK_TYPE_AUDIO = 0x2, MATROSKA_TRACK_TYPE_COMPLEX = 0x3, MATROSKA_TRACK_TYPE_LOGO = 0x10, MATROSKA_TRACK_TYPE_SUBTITLE = 0x11, MATROSKA_TRACK_TYPE_BUTTONS = 0x12, MATROSKA_TRACK_TYPE_CONTROL = 0x20, MATROSKA_TRACK_TYPE_METADATA = 0x21, } MATROSKA_TRACK_TYPE; typedef enum { MATROSKA_TRACK_ENCODING_COMP_ZLIB = 0, MATROSKA_TRACK_ENCODING_COMP_BZLIB = 1, MATROSKA_TRACK_ENCODING_COMP_LZO = 2, MATROSKA_TRACK_ENCODING_COMP_HEADERSTRIP = 3, } MATROSKA_TRACK_ENCODING_COMP_ALGO; typedef enum { MATROSKA_VIDEO_INTERLACE_FLAG_UNDETERMINED = 0, MATROSKA_VIDEO_INTERLACE_FLAG_INTERLACED = 1, MATROSKA_VIDEO_INTERLACE_FLAG_PROGRESSIVE = 2, } MATROSKA_VIDEO_INTERLACE_FLAG; typedef enum { MATROSKA_VIDEO_FIELDORDER_PROGRESSIVE = 0, MATROSKA_VIDEO_FIELDORDER_TT = 1, MATROSKA_VIDEO_FIELDORDER_UNDETERMINED = 2, MATROSKA_VIDEO_FIELDORDER_BB = 6, MATROSKA_VIDEO_FIELDORDER_TB = 9, MATROSKA_VIDEO_FIELDORDER_BT = 14, } MATROSKA_VIDEO_FIELDORDER; typedef enum { MATROSKA_VIDEO_STEREOMODE_TYPE_MONO = 0, MATROSKA_VIDEO_STEREOMODE_TYPE_LEFT_RIGHT = 1, MATROSKA_VIDEO_STEREOMODE_TYPE_BOTTOM_TOP = 2, MATROSKA_VIDEO_STEREOMODE_TYPE_TOP_BOTTOM = 3, MATROSKA_VIDEO_STEREOMODE_TYPE_CHECKERBOARD_RL = 4, MATROSKA_VIDEO_STEREOMODE_TYPE_CHECKERBOARD_LR = 5, MATROSKA_VIDEO_STEREOMODE_TYPE_ROW_INTERLEAVED_RL = 6, MATROSKA_VIDEO_STEREOMODE_TYPE_ROW_INTERLEAVED_LR = 7, MATROSKA_VIDEO_STEREOMODE_TYPE_COL_INTERLEAVED_RL = 8, MATROSKA_VIDEO_STEREOMODE_TYPE_COL_INTERLEAVED_LR = 9, MATROSKA_VIDEO_STEREOMODE_TYPE_ANAGLYPH_CYAN_RED = 10, MATROSKA_VIDEO_STEREOMODE_TYPE_RIGHT_LEFT = 11, MATROSKA_VIDEO_STEREOMODE_TYPE_ANAGLYPH_GREEN_MAG = 12, MATROSKA_VIDEO_STEREOMODE_TYPE_BOTH_EYES_BLOCK_LR = 13, MATROSKA_VIDEO_STEREOMODE_TYPE_BOTH_EYES_BLOCK_RL = 14, MATROSKA_VIDEO_STEREOMODE_TYPE_NB, } MATROSKA_VIDEO_STEREOMODE_TYPE; typedef enum { MATROSKA_VIDEO_DISPLAYUNIT_PIXELS = 0, MATROSKA_VIDEO_DISPLAYUNIT_CENTIMETERS = 1, MATROSKA_VIDEO_DISPLAYUNIT_INCHES = 2, MATROSKA_VIDEO_DISPLAYUNIT_DAR = 3, MATROSKA_VIDEO_DISPLAYUNIT_UNKNOWN = 4, } MATROSKA_VIDEO_DISPLAYUNIT; typedef enum { MATROSKA_COLOUR_CHROMASITINGHORZ_UNDETERMINED = 0, MATROSKA_COLOUR_CHROMASITINGHORZ_LEFT = 1, MATROSKA_COLOUR_CHROMASITINGHORZ_HALF = 2, MATROSKA_COLOUR_CHROMASITINGHORZ_NB } MATROSKA_COLOUR_CHROMASITINGHORZ; typedef enum { MATROSKA_COLOUR_CHROMASITINGVERT_UNDETERMINED = 0, MATROSKA_COLOUR_CHROMASITINGVERT_TOP = 1, MATROSKA_COLOUR_CHROMASITINGVERT_HALF = 2, MATROSKA_COLOUR_CHROMASITINGVERT_NB } MATROSKA_COLOUR_CHROMASITINGVERT; typedef enum { MATROSKA_VIDEO_PROJECTION_TYPE_RECTANGULAR = 0, MATROSKA_VIDEO_PROJECTION_TYPE_EQUIRECTANGULAR = 1, MATROSKA_VIDEO_PROJECTION_TYPE_CUBEMAP = 2, MATROSKA_VIDEO_PROJECTION_TYPE_MESH = 3, } MATROSKA_VIDEO_PROJECTION_TYPE; typedef enum { EBML_NONE, EBML_UINT, EBML_SINT, EBML_FLOAT, EBML_STR, EBML_UTF8, EBML_BIN, EBML_NEST, EBML_LEVEL1, EBML_STOP, EBML_STREAM, EBML_TYPE_COUNT } EBML_TYPE; typedef const struct ebml_syntax { uint32_t id; EBML_TYPE type; size_t list_elem_size; size_t data_offset; union { int64_t i; uint64_t u; double f; const char *s; const struct ebml_syntax *n; } def; } ebml_syntax; typedef struct ebml_list { int nb_elem; unsigned int alloc_elem_size; void *elem; } ebml_list; typedef struct ebml_bin { int size; //AVBufferRef *buf; uint8_t *data; int64_t pos; } ebml_bin; typedef struct ebml_header { uint64_t version; uint64_t max_size; uint64_t id_length; char *doctype; uint64_t doctype_version; } ebml_header; typedef struct matroska_track_compression { uint64_t algo; ebml_bin settings; } matroska_track_compression; typedef struct matroska_track_encryption { uint64_t algo; ebml_bin key_id; } matroska_track_encryption; typedef struct matroska_track_encoding { uint64_t scope; uint64_t type; matroska_track_compression compression; matroska_track_encryption encryption; } matroska_track_encoding; typedef struct matroska_mastering_meta { double r_x; double r_y; double g_x; double g_y; double b_x; double b_y; double white_x; double white_y; double max_luminance; double min_luminance; } matroska_mastering_meta; typedef struct matroska_track_video_color { uint64_t matrix_coefficients; uint64_t bits_per_channel; uint64_t chroma_sub_horz; uint64_t chroma_sub_vert; uint64_t cb_sub_horz; uint64_t cb_sub_vert; uint64_t chroma_siting_horz; uint64_t chroma_siting_vert; uint64_t range; uint64_t transfer_characteristics; uint64_t primaries; uint64_t max_cll; uint64_t max_fall; matroska_mastering_meta mastering_meta; } matroska_track_video_color; typedef struct matroska_track_video_projection { uint64_t type; ebml_bin private; double yaw; double pitch; double roll; } matroska_track_video_projection; typedef struct matroska_track_video { double frame_rate; uint64_t display_width; uint64_t display_height; uint64_t pixel_width; uint64_t pixel_height; ebml_bin color_space; uint64_t display_unit; uint64_t interlaced; uint64_t field_order; uint64_t stereo_mode; uint64_t alpha_mode; ebml_list color; matroska_track_video_projection projection; } matroska_track_video; typedef struct matroska_track_audio { double samplerate; double out_samplerate; uint64_t bitdepth; uint64_t channels; /* real audio header (extracted from extradata) */ int coded_framesize; int sub_packet_h; int frame_size; int sub_packet_size; int sub_packet_cnt; int pkt_cnt; uint64_t buf_timecode; uint8_t *buf; } matroska_track_audio; typedef struct matroska_track_plane { uint64_t uid; uint64_t type; } matroska_track_plane; typedef struct matroska_track_operation { ebml_list combine_planes; } matroska_track_operation; typedef struct matroska_attachment { uint64_t uid; char *filename; char *description; char *mime; ebml_bin bin; } matroska_attachment; typedef struct matroska_chapter { uint64_t start; uint64_t end; uint64_t uid; char *title; } matroska_chapter; typedef struct matroska_index_pos { uint64_t track; uint64_t pos; } matroska_index_pos; typedef struct matroska_index { uint64_t time; ebml_list pos; } matroska_index; typedef struct matroska_tag { char *name; char *string; char *lang; uint64_t def; ebml_list sub; } matroska_tag; typedef struct matroska_tag_targets { char *type; uint64_t typevalue; uint64_t trackuid; uint64_t chapteruid; uint64_t attachuid; } matroska_tag_targets; typedef struct matroska_tags { matroska_tag_targets target; ebml_list tag; } matroska_tags; typedef struct matroska_seek_head { uint64_t id; uint64_t pos; } matroska_seek_head; typedef struct matroska_level { uint64_t start; uint64_t length; } matroska_level; typedef struct matroska_block { uint64_t duration; int64_t reference; uint64_t non_simple; ebml_bin bin; uint64_t additional_id; ebml_bin additional; int64_t discard_padding; } matroska_block; typedef struct matroska_cluster { matroska_block block; uint64_t timecode; int64_t pos; } matroska_cluster; typedef struct matroska_level1_element { int64_t pos; uint32_t id; int parsed; } matroska_level1_element; struct matroska_index_entry { int64_t pos; int64_t timestamp; int size; int min_distance; int flags; }; struct matroska_stream_ctx { void *priv_data; int index; int64_t nb_frames; int64_t duration; int cur_sample_idx; struct aic_codec_param codecpar; int skip_to_keyframe; int nb_index_entries; int alloc_entries_flag; struct matroska_index_entry *index_entries; }; typedef struct matroska_track { uint64_t num; uint64_t uid; uint64_t type; char *name; char *codec_id; ebml_bin codec_priv; char *language; double time_scale; uint64_t default_duration; uint64_t flag_default; uint64_t flag_forced; uint64_t seek_preroll; matroska_track_video video; matroska_track_audio audio; matroska_track_operation operation; ebml_list encodings; uint64_t codec_delay; uint64_t codec_delay_in_track_tb; struct matroska_stream_ctx *stream; int64_t end_timecode; int ms_compat; int needs_decoding; uint64_t max_block_additional_id; uint32_t palette[256]; int has_palette; } matroska_track; struct matroska_demux_context { /* ebml stuff */ matroska_level levels[EBML_MAX_DEPTH]; int num_levels; uint32_t current_id; int64_t resync_pos; int64_t cur_pos; int64_t eos_pos; int unknown_count; uint64_t time_scale; double duration; char *title; char *muxingapp; ebml_bin date_utc; ebml_list tracks; ebml_list attachments; ebml_list chapters; ebml_list index; ebml_list tags; ebml_list seekhead; /* byte position of the segment inside the stream */ int64_t segment_start; int done; /* What to skip before effectively reading a packet. */ int skip_to_keyframe; uint64_t skip_to_timecode; /* File has a CUES element, but we defer parsing until it is needed. */ int cues_parsing_deferred; /* Level1 elements and whether they were read yet */ matroska_level1_element level1_elems[64]; int num_level1_elems; matroska_cluster current_cluster; /* WebM DASH Manifest live flag */ int is_live; /* Bandwidth value for WebM DASH Manifest */ int bandwidth; int skip_track; }; #define MATROSKA_MAX_TRACK_NUM 8 struct aic_matroska_parser { struct aic_parser base; struct aic_stream *stream; struct matroska_demux_context matroska_c; int nb_streams; struct matroska_stream_ctx *streams[MATROSKA_MAX_TRACK_NUM]; struct matroska_index_entry *cur_sample; }; int matroska_read_header(struct aic_matroska_parser *s); int matroska_read_close(struct aic_matroska_parser *s); int matroska_peek_packet(struct aic_matroska_parser *s, struct aic_parser_packet *pkt); int matroska_seek_packet(struct aic_matroska_parser *s, s64 pts); int matroska_read_packet(struct aic_matroska_parser *s, struct aic_parser_packet *pkt); int matroska_control(struct aic_matroska_parser *s, enum parse_command cmd, void *params); #endif /* __MATROSKADEC_H__ */