FFmpeg: libavformat/iamf_parse.c File Reference

FFmpeg

libavformat

iamf_parse.c File Reference

#include "libavutil/avassert.h"
#include "libavutil/iamf.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/log.h"
#include "libavutil/mem.h"
#include "libavcodec/get_bits.h"
#include "libavcodec/flac.h"
#include "libavcodec/leb.h"
#include "libavcodec/mpeg4audio.h"
#include "libavcodec/put_bits.h"
#include "avio_internal.h"
#include "iamf_parse.h"
#include "isom.h"

Go to the source code of this file.

Functions

static int opus_decoder_config (IAMFCodecConfig *codec_config, AVIOContext *pb, int len)

static int aac_decoder_config (IAMFCodecConfig *codec_config, AVIOContext *pb, int len, void *logctx)

static int flac_decoder_config (IAMFCodecConfig *codec_config, AVIOContext *pb, int len)

static int ipcm_decoder_config (IAMFCodecConfig *codec_config, AVIOContext *pb, int len)

static int codec_config_obu (void *s, IAMFContext *c, AVIOContext *pb, int len)

static int update_extradata (AVCodecParameters *codecpar)

static int scalable_channel_layout_config (void *s, AVIOContext *pb, IAMFAudioElement *audio_element, const IAMFCodecConfig *codec_config)

static int ambisonics_config (void *s, AVIOContext *pb, IAMFAudioElement *audio_element, const IAMFCodecConfig *codec_config)

static int param_parse (void *s, IAMFContext *c, AVIOContext *pb, unsigned int type, const IAMFAudioElement *audio_element, AVIAMFParamDefinition **out_param_definition)

static int audio_element_obu (void *s, IAMFContext *c, AVIOContext *pb, int len)

static int label_string (AVIOContext *pb, char **label)

static int mix_presentation_obu (void *s, IAMFContext *c, AVIOContext *pb, int len)

int ff_iamf_parse_obu_header (const uint8_t *buf, int buf_size, unsigned *obu_size, int *start_pos, enum IAMF_OBU_Type *type, unsigned *skip_samples, unsigned *discard_padding)

int ff_iamfdec_read_descriptors (IAMFContext *c, AVIOContext *pb, int max_size, void *log_ctx)

Function Documentation

◆ opus_decoder_config()

static int opus_decoder_config ( IAMFCodecConfig * codec_config,

AVIOContext * pb,

int len

)

static

Definition at line 36 of file iamf_parse.c.

Referenced by codec_config_obu().

◆ aac_decoder_config()

static int aac_decoder_config ( IAMFCodecConfig * codec_config,

AVIOContext * pb,

int len,

void * logctx

)

static

Definition at line 60 of file iamf_parse.c.

Referenced by codec_config_obu().

◆ flac_decoder_config()

static int flac_decoder_config ( IAMFCodecConfig * codec_config,

AVIOContext * pb,

int len

)

static

Definition at line 117 of file iamf_parse.c.

Referenced by codec_config_obu().

◆ ipcm_decoder_config()

static int ipcm_decoder_config ( IAMFCodecConfig * codec_config,

AVIOContext * pb,

int len

)

static

Definition at line 145 of file iamf_parse.c.

Referenced by codec_config_obu().

◆ codec_config_obu()

static int codec_config_obu ( void * s,

IAMFContext * c,

AVIOContext * pb,

int len

)

static

Definition at line 166 of file iamf_parse.c.

Referenced by ff_iamfdec_read_descriptors().

◆ update_extradata()

static int update_extradata ( AVCodecParameters * codecpar )

static

Definition at line 274 of file iamf_parse.c.

Referenced by ambisonics_config(), and scalable_channel_layout_config().

◆ scalable_channel_layout_config()

static int scalable_channel_layout_config ( void * s,

AVIOContext * pb,

IAMFAudioElement * audio_element,

const IAMFCodecConfig * codec_config

)

static

Definition at line 350 of file iamf_parse.c.

Referenced by audio_element_obu().

◆ ambisonics_config()

static int ambisonics_config ( void * s,

AVIOContext * pb,

IAMFAudioElement * audio_element,

const IAMFCodecConfig * codec_config

)

static

Definition at line 483 of file iamf_parse.c.

Referenced by audio_element_obu().

◆ param_parse()

static int param_parse ( void * s,

IAMFContext * c,

AVIOContext * pb,

unsigned int type,

const IAMFAudioElement * audio_element,

AVIAMFParamDefinition ** out_param_definition

)

static

Definition at line 570 of file iamf_parse.c.

Referenced by audio_element_obu(), and mix_presentation_obu().

◆ audio_element_obu()

static int audio_element_obu ( void * s,

IAMFContext * c,

AVIOContext * pb,

int len

)

static

Definition at line 692 of file iamf_parse.c.

Referenced by ff_iamfdec_read_descriptors().

◆ label_string()

static int label_string ( AVIOContext * pb,

char ** label

)

static

Definition at line 876 of file iamf_parse.c.

Referenced by mix_presentation_obu().

◆ mix_presentation_obu()

static int mix_presentation_obu ( void * s,

IAMFContext * c,

AVIOContext * pb,

int len

)

static

Definition at line 893 of file iamf_parse.c.

Referenced by ff_iamfdec_read_descriptors().

◆ ff_iamf_parse_obu_header()

int ff_iamf_parse_obu_header ( const uint8_t * buf,

int buf_size,

unsigned * obu_size,

int * start_pos,

enum IAMF_OBU_Type * type,

unsigned * skip_samples,

unsigned * discard_padding

)

Definition at line 1110 of file iamf_parse.c.

Referenced by ff_iamf_read_packet(), ff_iamfdec_read_descriptors(), and iamf_probe().

◆ ff_iamfdec_read_descriptors()

int ff_iamfdec_read_descriptors ( IAMFContext * c,

AVIOContext * pb,

int max_size,

void * log_ctx

)

Definition at line 1165 of file iamf_parse.c.

Referenced by iamf_read_header().

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