isom.c File Reference

#include "avformat.h"
#include "internal.h"
#include "isom.h"
#include "libavcodec/mpeg4audio.h"
#include "libavcodec/mpegaudiodata.h"
#include "libavutil/avstring.h"
#include "libavutil/intreadwrite.h"

Go to the source code of this file.

Data Structures
struct	MovChannelLayout

Functions
int	ff_mov_iso639_to_lang (const char lang[4], int mp4)
int	ff_mov_lang_to_iso639 (unsigned code, char to[4])
int	ff_mp4_read_descr_len (AVIOContext *pb)
int	ff_mp4_read_descr (AVFormatContext *fc, AVIOContext *pb, int *tag)
void	ff_mp4_parse_es_descr (AVIOContext *pb, int *es_id)
int	ff_mp4_read_dec_config_descr (AVFormatContext *fc, AVStream *st, AVIOContext *pb)
void	ff_mov_write_chan (AVIOContext *pb, int64_t channel_layout)
const struct AVCodecTag *	avformat_get_mov_video_tags (void)
const struct AVCodecTag *	avformat_get_mov_audio_tags (void)

Variables
const AVCodecTag	ff_mp4_obj_type []
const AVCodecTag	ff_codec_movvideo_tags []
const AVCodecTag	ff_codec_movaudio_tags []
const AVCodecTag	ff_codec_movsubtitle_tags []
const AVCodecTag	ff_codec_movdata_tags []
static const char	mov_mdhd_language_map [][4]
static const AVCodecTag	mp4_audio_types []
static const MovChannelLayout	mov_channel_layout []

Function Documentation

ff_mov_iso639_to_lang()

int ff_mov_iso639_to_lang	(	const char	lang[4],
		int	mp4
	)

Definition at line 414 of file isom.c.

Referenced by get_metadata_lang(), mov_init(), and mov_write_string_data_tag().

ff_mov_lang_to_iso639()

int ff_mov_lang_to_iso639	(	unsigned	code,
		char	to[4]
	)

Definition at line 441 of file isom.c.

Referenced by mov_metadata_loci(), mov_read_mdhd(), and mov_read_udta_string().

ff_mp4_read_descr_len()

int ff_mp4_read_descr_len

(

AVIOContext *

pb

)

Definition at line 463 of file isom.c.

Referenced by ff_mp4_read_descr(), and read_pakt_chunk().

ff_mp4_read_descr()

int ff_mp4_read_descr	(	AVFormatContext *	fc,
		AVIOContext *	pb,
		int *	tag
	)

Definition at line 476 of file isom.c.

Referenced by ff_mov_read_esds(), ff_mp4_read_dec_config_descr(), and parse_mp4_descr().

ff_mp4_parse_es_descr()

void ff_mp4_parse_es_descr	(	AVIOContext *	pb,
		int *	es_id
	)

Definition at line 485 of file isom.c.

Referenced by ff_mov_read_esds(), and parse_MP4ESDescrTag().

ff_mp4_read_dec_config_descr()

int ff_mp4_read_dec_config_descr	(	AVFormatContext *	fc,
		AVStream *	st,
		AVIOContext *	pb
	)

Definition at line 510 of file isom.c.

Referenced by ff_mov_read_esds(), ff_parse_mpeg2_descriptor(), and m4sl_cb().

ff_mov_write_chan()

void ff_mov_write_chan	(	AVIOContext *	pb,
		int64_t	channel_layout
	)

Definition at line 642 of file isom.c.

Referenced by aiff_write_header(), and caf_write_header().

Variable Documentation

ff_mp4_obj_type

const AVCodecTag ff_mp4_obj_type[]

Definition at line 34 of file isom.c.

Referenced by ff_mp4_read_dec_config_descr(), mov_write_esds_tag(), and set_codec_str().

ff_codec_movvideo_tags

const AVCodecTag ff_codec_movvideo_tags[]

Definition at line 75 of file isom.c.

Referenced by avformat_get_mov_video_tags(), avi_read_header(), decode_stream_header(), mkv_write_codecprivate(), mkv_write_native_codecprivate(), mkv_write_track(), mov_codec_id(), mov_get_codec_tag(), mov_skip_multiple_stsd(), and set_codec_str().

ff_codec_movaudio_tags

const AVCodecTag ff_codec_movaudio_tags[]

Definition at line 318 of file isom.c.

Referenced by avformat_get_mov_audio_tags(), mov_codec_id(), mov_get_codec_tag(), and set_codec_str().

ff_codec_movsubtitle_tags

const AVCodecTag ff_codec_movsubtitle_tags[]

Initial value:

= {
    { AV_CODEC_ID_MOV_TEXT, MKTAG('t', 'e', 'x', 't') },
    { AV_CODEC_ID_MOV_TEXT, MKTAG('t', 'x', '3', 'g') },
    { AV_CODEC_ID_EIA_608,  MKTAG('c', '6', '0', '8') },
    { AV_CODEC_ID_NONE, 0 },
}

Definition at line 376 of file isom.c.

Referenced by mov_codec_id(), and mov_get_codec_tag().

ff_codec_movdata_tags

const AVCodecTag ff_codec_movdata_tags[]

Initial value:

= {
    { AV_CODEC_ID_BIN_DATA, MKTAG('g', 'p', 'm', 'd') },
    { AV_CODEC_ID_NONE, 0 },
}

Definition at line 383 of file isom.c.

Referenced by mov_codec_id().

mov_mdhd_language_map

const char mov_mdhd_language_map[][4]

static

Initial value:

= {
    
    "eng", "fra", "ger", "ita", "dut", "sve", "spa", "dan", "por", "nor",
    "heb", "jpn", "ara", "fin", "gre", "ice", "mlt", "tur", "hr ", "chi",
    "urd", "hin", "tha", "kor", "lit", "pol", "hun", "est", "lav",    "",
    "fo ",    "", "rus", "chi",    "", "iri", "alb", "ron", "ces", "slk",
    "slv", "yid", "sr ", "mac", "bul", "ukr", "bel", "uzb", "kaz", "aze",
    
    "aze", "arm", "geo", "mol", "kir", "tgk", "tuk", "mon",    "", "pus",
    "kur", "kas", "snd", "tib", "nep", "san", "mar", "ben", "asm", "guj",
    "pa ", "ori", "mal", "kan", "tam", "tel",    "", "bur", "khm", "lao",
    
    "vie", "ind", "tgl", "may", "may", "amh", "tir", "orm", "som", "swa",
    
       "", "run",    "", "mlg", "epo",    "",    "",    "",    "",    "",
    
       "",    "",    "",    "",    "",    "",    "",    "",    "",    "",
       "",    "",    "",    "",    "",    "",    "",    "",    "",    "",
       "",    "",    "",    "",    "",    "",    "",    "", "wel", "baq",
    "cat", "lat", "que", "grn", "aym", "tat", "uig", "dzo", "jav"
}

Definition at line 392 of file isom.c.

Referenced by ff_mov_iso639_to_lang(), and ff_mov_lang_to_iso639().

mp4_audio_types

const AVCodecTag mp4_audio_types[]

static

Initial value:

= {
    { AV_CODEC_ID_MP3ON4, AOT_PS   }, 
    { AV_CODEC_ID_MP3ON4, AOT_L1   }, 
    { AV_CODEC_ID_MP3ON4, AOT_L2   }, 
    { AV_CODEC_ID_MP3ON4, AOT_L3   }, 
    { AV_CODEC_ID_MP4ALS, AOT_ALS  }, 
    { AV_CODEC_ID_NONE,   AOT_NULL },
}

Definition at line 501 of file isom.c.

Referenced by ff_mp4_read_dec_config_descr().

mov_channel_layout

const MovChannelLayout mov_channel_layout[]

static

Initial value:

= {
    { AV_CH_LAYOUT_MONO,                         (100<<16) | 1}, 
    { AV_CH_LAYOUT_STEREO,                       (101<<16) | 2}, 
    { AV_CH_LAYOUT_STEREO,                       (102<<16) | 2}, 
    { AV_CH_LAYOUT_2_1,                          (131<<16) | 3}, 
    { AV_CH_LAYOUT_QUAD,                         (132<<16) | 4}, 
    { AV_CH_LAYOUT_2_2,                          (132<<16) | 4}, 
    { AV_CH_LAYOUT_QUAD,                         (108<<16) | 4}, 
    { AV_CH_LAYOUT_SURROUND,                     (113<<16) | 3}, 
    { AV_CH_LAYOUT_4POINT0,                      (115<<16) | 4}, 
    { AV_CH_LAYOUT_5POINT0_BACK,                 (117<<16) | 5}, 
    { AV_CH_LAYOUT_5POINT0,                      (117<<16) | 5}, 
    { AV_CH_LAYOUT_5POINT1_BACK,                 (121<<16) | 6}, 
    { AV_CH_LAYOUT_5POINT1,                      (121<<16) | 6}, 
    { AV_CH_LAYOUT_7POINT1,                      (128<<16) | 8}, 
    { AV_CH_LAYOUT_7POINT1_WIDE,                 (126<<16) | 8}, 
    { AV_CH_LAYOUT_5POINT1_BACK|AV_CH_LAYOUT_STEREO_DOWNMIX, (130<<16) | 8}, 
    { AV_CH_LAYOUT_STEREO|AV_CH_LOW_FREQUENCY,   (133<<16) | 3}, 
    { AV_CH_LAYOUT_2_1|AV_CH_LOW_FREQUENCY,      (134<<16) | 4}, 
    { AV_CH_LAYOUT_QUAD|AV_CH_LOW_FREQUENCY,     (135<<16) | 4}, 
    { AV_CH_LAYOUT_2_2|AV_CH_LOW_FREQUENCY,      (135<<16) | 4}, 
    { AV_CH_LAYOUT_SURROUND|AV_CH_LOW_FREQUENCY, (136<<16) | 4}, 
    { AV_CH_LAYOUT_4POINT0|AV_CH_LOW_FREQUENCY,  (137<<16) | 5}, 
    { 0, 0},
}

Definition at line 577 of file isom.c.

Referenced by ff_mov_write_chan().