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 338 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 405 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 490 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 600 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 770 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 787 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 1004 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 1059 of file iamf_parse.c.

Referenced by iamf_read_header().