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FFmpeg
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FFmpeg
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#include "avformat.h"#include "internal.h"#include "riff.h"#include "isom.h"#include "matroska.h"#include "avc.h"#include "flacenc.h"#include "avlanguage.h"#include "libavutil/samplefmt.h"#include "libavutil/sha.h"#include "libavutil/intreadwrite.h"#include "libavutil/intfloat.h"#include "libavutil/mathematics.h"#include "libavutil/random_seed.h"#include "libavutil/lfg.h"#include "libavutil/dict.h"#include "libavutil/avstring.h"#include "libavcodec/xiph.h"#include "libavcodec/mpeg4audio.h"Go to the source code of this file.
Data Structures | |
| struct | ebml_master |
| struct | mkv_seekhead_entry |
| struct | mkv_seekhead |
| struct | mkv_cuepoint |
| struct | mkv_cues |
| struct | mkv_track |
| struct | MatroskaMuxContext |
Macros | |
| #define | MODE_MATROSKAv2 0x01 |
| #define | MODE_WEBM 0x02 |
| #define | MAX_SEEKENTRY_SIZE 21 |
| 2 bytes * 3 for EBML IDs, 3 1-byte EBML lengths, 8 bytes for 64 bit offset, 4 bytes for target EBML ID | |
| #define | MAX_CUETRACKPOS_SIZE 22 |
| per-cuepoint-track - 3 1-byte EBML IDs, 3 1-byte EBML sizes, 2 8-byte uint max | |
| #define | MAX_CUEPOINT_SIZE(num_tracks) 12 + MAX_CUETRACKPOS_SIZE*num_tracks |
| per-cuepoint - 2 1-byte EBML IDs, 2 1-byte EBML sizes, 8-byte uint max | |
Functions | |
| static int | ebml_id_size (unsigned int id) |
| static void | put_ebml_id (AVIOContext *pb, unsigned int id) |
| static void | put_ebml_size_unknown (AVIOContext *pb, int bytes) |
| Write an EBML size meaning "unknown size". | |
| static int | ebml_num_size (uint64_t num) |
| Calculate how many bytes are needed to represent a given number in EBML. | |
| static void | put_ebml_num (AVIOContext *pb, uint64_t num, int bytes) |
| Write a number in EBML variable length format. | |
| static void | put_ebml_uint (AVIOContext *pb, unsigned int elementid, uint64_t val) |
| static void | put_ebml_float (AVIOContext *pb, unsigned int elementid, double val) |
| static void | put_ebml_binary (AVIOContext *pb, unsigned int elementid, const void *buf, int size) |
| static void | put_ebml_string (AVIOContext *pb, unsigned int elementid, const char *str) |
| static void | put_ebml_void (AVIOContext *pb, uint64_t size) |
| Write a void element of a given size. | |
| static ebml_master | start_ebml_master (AVIOContext *pb, unsigned int elementid, uint64_t expectedsize) |
| static void | end_ebml_master (AVIOContext *pb, ebml_master master) |
| static void | put_xiph_size (AVIOContext *pb, int size) |
| static mkv_seekhead * | mkv_start_seekhead (AVIOContext *pb, int64_t segment_offset, int numelements) |
| Initialize a mkv_seekhead element to be ready to index level 1 Matroska elements. | |
| static int | mkv_add_seekhead_entry (mkv_seekhead *seekhead, unsigned int elementid, uint64_t filepos) |
| static int64_t | mkv_write_seekhead (AVIOContext *pb, mkv_seekhead *seekhead) |
| Write the seek head to the file and free it. | |
| static mkv_cues * | mkv_start_cues (int64_t segment_offset) |
| static int | mkv_add_cuepoint (mkv_cues *cues, int stream, int64_t ts, int64_t cluster_pos) |
| static int64_t | mkv_write_cues (AVIOContext *pb, mkv_cues *cues, mkv_track *tracks, int num_tracks) |
| static int | put_xiph_codecpriv (AVFormatContext *s, AVIOContext *pb, AVCodecContext *codec) |
| static void | get_aac_sample_rates (AVFormatContext *s, AVCodecContext *codec, int *sample_rate, int *output_sample_rate) |
| static int | mkv_write_codecprivate (AVFormatContext *s, AVIOContext *pb, AVCodecContext *codec, int native_id, int qt_id) |
| static int | mkv_write_tracks (AVFormatContext *s) |
| static int | mkv_write_chapters (AVFormatContext *s) |
| static void | mkv_write_simpletag (AVIOContext *pb, AVDictionaryEntry *t) |
| static int | mkv_write_tag (AVFormatContext *s, AVDictionary *m, unsigned int elementid, unsigned int uid, ebml_master *tags) |
| static int | mkv_write_tags (AVFormatContext *s) |
| static int | mkv_write_attachments (AVFormatContext *s) |
| static int | mkv_write_header (AVFormatContext *s) |
| static int | mkv_blockgroup_size (int pkt_size) |
| static int | ass_get_duration (const uint8_t *p) |
| static int | mkv_write_ass_blocks (AVFormatContext *s, AVIOContext *pb, AVPacket *pkt) |
| static void | mkv_write_block (AVFormatContext *s, AVIOContext *pb, unsigned int blockid, AVPacket *pkt, int flags) |
| static int | srt_get_duration (uint8_t **buf) |
| static int | mkv_write_srt_blocks (AVFormatContext *s, AVIOContext *pb, AVPacket *pkt) |
| static void | mkv_flush_dynbuf (AVFormatContext *s) |
| static int | mkv_write_packet_internal (AVFormatContext *s, AVPacket *pkt) |
| static int | mkv_copy_packet (MatroskaMuxContext *mkv, const AVPacket *pkt) |
| static int | mkv_write_packet (AVFormatContext *s, AVPacket *pkt) |
| static int | mkv_write_trailer (AVFormatContext *s) |
| static int | mkv_query_codec (enum AVCodecID codec_id, int std_compliance) |
Variables | |
| const AVCodecTag | additional_audio_tags [] |
| const AVCodecTag | additional_video_tags [] |
| #define MODE_MATROSKAv2 0x01 |
Definition at line 78 of file matroskaenc.c.
Referenced by mkv_write_header().
| #define MODE_WEBM 0x02 |
Definition at line 79 of file matroskaenc.c.
Referenced by mkv_write_header(), and mkv_write_tracks().
| #define MAX_SEEKENTRY_SIZE 21 |
2 bytes * 3 for EBML IDs, 3 1-byte EBML lengths, 8 bytes for 64 bit offset, 4 bytes for target EBML ID
Definition at line 104 of file matroskaenc.c.
Referenced by mkv_start_seekhead(), and mkv_write_seekhead().
| #define MAX_CUETRACKPOS_SIZE 22 |
per-cuepoint-track - 3 1-byte EBML IDs, 3 1-byte EBML sizes, 2 8-byte uint max
Definition at line 108 of file matroskaenc.c.
Referenced by mkv_write_cues().
| #define MAX_CUEPOINT_SIZE | ( | num_tracks | ) | 12 + MAX_CUETRACKPOS_SIZE*num_tracks |
per-cuepoint - 2 1-byte EBML IDs, 2 1-byte EBML sizes, 8-byte uint max
Definition at line 111 of file matroskaenc.c.
Referenced by mkv_write_cues().
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Definition at line 114 of file matroskaenc.c.
Referenced by mkv_write_seekhead(), and put_ebml_id().
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Definition at line 119 of file matroskaenc.c.
Referenced by mkv_write_ass_blocks(), mkv_write_block(), mkv_write_seekhead(), put_ebml_binary(), put_ebml_float(), put_ebml_uint(), put_ebml_void(), and start_ebml_master().
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Write an EBML size meaning "unknown size".
| bytes | The number of bytes the size should occupy (maximum: 8). |
Definition at line 131 of file matroskaenc.c.
Referenced by start_ebml_master().
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Calculate how many bytes are needed to represent a given number in EBML.
Definition at line 142 of file matroskaenc.c.
Referenced by mkv_blockgroup_size(), put_ebml_num(), and start_ebml_master().
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Write a number in EBML variable length format.
| bytes | The number of bytes that need to be used to write the number. If zero, any number of bytes can be used. |
Definition at line 155 of file matroskaenc.c.
Referenced by end_ebml_master(), mkv_write_ass_blocks(), mkv_write_block(), mkv_write_seekhead(), put_ebml_binary(), put_ebml_float(), put_ebml_uint(), and put_ebml_void().
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Definition at line 174 of file matroskaenc.c.
Referenced by mkv_write_ass_blocks(), mkv_write_attachments(), mkv_write_chapters(), mkv_write_cues(), mkv_write_header(), mkv_write_packet_internal(), mkv_write_seekhead(), mkv_write_srt_blocks(), mkv_write_tag(), and mkv_write_tracks().
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Definition at line 186 of file matroskaenc.c.
Referenced by mkv_write_tracks(), and mkv_write_trailer().
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Definition at line 193 of file matroskaenc.c.
Referenced by mkv_write_attachments(), mkv_write_codecprivate(), mkv_write_header(), mkv_write_tracks(), and put_ebml_string().
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Definition at line 201 of file matroskaenc.c.
Referenced by mkv_write_attachments(), mkv_write_chapters(), mkv_write_header(), mkv_write_simpletag(), and mkv_write_tracks().
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Write a void element of a given size.
Useful for reserving space in the file to be written to later.
| size | The number of bytes to reserve, which must be at least 2. |
Definition at line 212 of file matroskaenc.c.
Referenced by mkv_start_seekhead(), mkv_write_header(), and mkv_write_seekhead().
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Definition at line 230 of file matroskaenc.c.
Referenced by mkv_write_ass_blocks(), mkv_write_attachments(), mkv_write_chapters(), mkv_write_cues(), mkv_write_header(), mkv_write_packet_internal(), mkv_write_seekhead(), mkv_write_simpletag(), mkv_write_srt_blocks(), mkv_write_tag(), and mkv_write_tracks().
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Definition at line 238 of file matroskaenc.c.
Referenced by mkv_write_ass_blocks(), mkv_write_attachments(), mkv_write_chapters(), mkv_write_cues(), mkv_write_header(), mkv_write_packet(), mkv_write_packet_internal(), mkv_write_seekhead(), mkv_write_simpletag(), mkv_write_srt_blocks(), mkv_write_tag(), mkv_write_tags(), mkv_write_tracks(), and mkv_write_trailer().
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Definition at line 248 of file matroskaenc.c.
Referenced by put_xiph_codecpriv().
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Initialize a mkv_seekhead element to be ready to index level 1 Matroska elements.
If a maximum number of elements is specified, enough space will be reserved at the current file location to write a seek head of that size.
| segment_offset | The absolute offset to the position in the file where the segment begins. |
| numelements | The maximum number of elements that will be indexed by this seek head, 0 if unlimited. |
Definition at line 267 of file matroskaenc.c.
Referenced by mkv_write_header().
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Definition at line 287 of file matroskaenc.c.
Referenced by mkv_write_attachments(), mkv_write_chapters(), mkv_write_header(), mkv_write_tag(), mkv_write_tracks(), and mkv_write_trailer().
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Write the seek head to the file and free it.
If a maximum number of elements was specified to mkv_start_seekhead(), the seek head will be written at the location reserved for it. Otherwise, it is written at the current location in the file.
Definition at line 315 of file matroskaenc.c.
Referenced by mkv_write_header(), and mkv_write_trailer().
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Definition at line 359 of file matroskaenc.c.
Referenced by mkv_write_header().
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Definition at line 369 of file matroskaenc.c.
Referenced by mkv_write_packet_internal().
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Definition at line 388 of file matroskaenc.c.
Referenced by mkv_write_trailer().
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Definition at line 428 of file matroskaenc.c.
Referenced by mkv_write_codecprivate().
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Definition at line 456 of file matroskaenc.c.
Referenced by mkv_write_tracks().
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Definition at line 470 of file matroskaenc.c.
Referenced by mkv_write_tracks().
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Definition at line 538 of file matroskaenc.c.
Referenced by mkv_write_header().
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Definition at line 716 of file matroskaenc.c.
Referenced by mkv_write_header().
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Definition at line 760 of file matroskaenc.c.
Referenced by mkv_write_tag().
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Definition at line 790 of file matroskaenc.c.
Referenced by mkv_write_tags().
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Definition at line 819 of file matroskaenc.c.
Referenced by mkv_write_header().
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Definition at line 856 of file matroskaenc.c.
Referenced by mkv_write_header().
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Definition at line 935 of file matroskaenc.c.
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Definition at line 1053 of file matroskaenc.c.
Referenced by mkv_write_ass_blocks(), mkv_write_packet_internal(), and mkv_write_srt_blocks().
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Definition at line 1064 of file matroskaenc.c.
Referenced by mkv_write_ass_blocks().
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Definition at line 1077 of file matroskaenc.c.
Referenced by mkv_write_packet_internal().
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Definition at line 1122 of file matroskaenc.c.
Referenced by mkv_write_packet_internal(), and mkv_write_srt_blocks().
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Definition at line 1157 of file matroskaenc.c.
Referenced by mkv_write_srt_blocks().
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Definition at line 1176 of file matroskaenc.c.
Referenced by mkv_write_packet_internal().
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Definition at line 1192 of file matroskaenc.c.
Referenced by mkv_write_packet(), and mkv_write_trailer().
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Definition at line 1207 of file matroskaenc.c.
Referenced by mkv_write_packet(), and mkv_write_trailer().
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Definition at line 1265 of file matroskaenc.c.
Referenced by mkv_write_packet().
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Definition at line 1278 of file matroskaenc.c.
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Definition at line 1320 of file matroskaenc.c.
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Definition at line 1372 of file matroskaenc.c.
| const AVCodecTag additional_audio_tags[] |
Definition at line 1388 of file matroskaenc.c.
| const AVCodecTag additional_video_tags[] |
Definition at line 1405 of file matroskaenc.c.
1.8.2