iamf_writer.c File Reference

#include "libavutil/bprint.h"
#include "libavutil/channel_layout.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/iamf.h"
#include "libavutil/mem.h"
#include "libavcodec/get_bits.h"
#include "libavcodec/put_bits.h"
#include "avformat.h"
#include "avio_internal.h"
#include "iamf.h"
#include "iamf_writer.h"

Go to the source code of this file.

Functions
static int	update_extradata (IAMFCodecConfig *codec_config)
static int	populate_audio_roll_distance (IAMFCodecConfig *codec_config)
static int	fill_codec_config (IAMFContext *iamf, const AVStreamGroup *stg, IAMFCodecConfig *codec_config, void *log_ctx)
static int	add_param_definition (IAMFContext *iamf, AVIAMFParamDefinition *param, const IAMFAudioElement *audio_element, void *log_ctx)
int	ff_iamf_add_audio_element (IAMFContext *iamf, const AVStreamGroup *stg, void *log_ctx)
int	ff_iamf_add_mix_presentation (IAMFContext *iamf, const AVStreamGroup *stg, void *log_ctx)
static int	iamf_write_codec_config (const IAMFContext *iamf, const IAMFCodecConfig *codec_config, AVIOContext *pb)
static int	rescale_rational (AVRational q, int b)
static void	get_loudspeaker_layout (const AVIAMFLayer *layer, int *playout, int *pexpanded_layout)
static int	scalable_channel_layout_config (const IAMFAudioElement *audio_element, AVIOContext *dyn_bc)
static int	ambisonics_config (const IAMFAudioElement *audio_element, AVIOContext *dyn_bc)
static int	param_definition (const IAMFContext *iamf, const IAMFParamDefinition *param_def, AVIOContext *dyn_bc, void *log_ctx)
static int	iamf_write_audio_element (const IAMFContext *iamf, const IAMFAudioElement *audio_element, AVIOContext *pb, void *log_ctx)
static int	iamf_write_mixing_presentation (const IAMFContext *iamf, const IAMFMixPresentation *mix_presentation, AVIOContext *pb, void *log_ctx)
int	ff_iamf_write_descriptors (const IAMFContext *iamf, AVIOContext *pb, void *log_ctx)
static int	write_parameter_block (const IAMFContext *iamf, AVIOContext *pb, const AVIAMFParamDefinition *param, void *log_ctx)
int	ff_iamf_write_parameter_blocks (const IAMFContext *iamf, AVIOContext *pb, const AVPacket *pkt, void *log_ctx)
static IAMFAudioElement *	get_audio_element (const IAMFContext *c, unsigned int audio_substream_id)
int	ff_iamf_write_audio_frame (const IAMFContext *iamf, AVIOContext *pb, unsigned audio_substream_id, const AVPacket *pkt)

Function Documentation

update_extradata()

static int update_extradata ( IAMFCodecConfig * codec_config )

static

Definition at line 35 of file iamf_writer.c.

Referenced by ff_iamf_write_audio_frame(), and fill_codec_config().

populate_audio_roll_distance()

static int populate_audio_roll_distance ( IAMFCodecConfig * codec_config )

static

Definition at line 80 of file iamf_writer.c.

Referenced by fill_codec_config().

fill_codec_config()

static int fill_codec_config ( IAMFContext * iamf, const AVStreamGroup * stg, IAMFCodecConfig * codec_config, void * log_ctx )

static

Definition at line 108 of file iamf_writer.c.

Referenced by ff_iamf_add_audio_element().

add_param_definition()

static int add_param_definition ( IAMFContext * iamf, AVIAMFParamDefinition * param, const IAMFAudioElement * audio_element, void * log_ctx )

static

Definition at line 180 of file iamf_writer.c.

Referenced by ff_iamf_add_audio_element(), and ff_iamf_add_mix_presentation().

ff_iamf_add_audio_element()

int ff_iamf_add_audio_element	(	IAMFContext *	iamf,
		const AVStreamGroup *	stg,
		void *	log_ctx )

Definition at line 223 of file iamf_writer.c.

Referenced by iamf_init().

ff_iamf_add_mix_presentation()

int ff_iamf_add_mix_presentation	(	IAMFContext *	iamf,
		const AVStreamGroup *	stg,
		void *	log_ctx )

Definition at line 433 of file iamf_writer.c.

Referenced by iamf_init().

iamf_write_codec_config()

static int iamf_write_codec_config ( const IAMFContext * iamf, const IAMFCodecConfig * codec_config, AVIOContext * pb )

static

Definition at line 512 of file iamf_writer.c.

Referenced by ff_iamf_write_descriptors().

rescale_rational()

static int rescale_rational ( AVRational q, int b )

inlinestatic

Definition at line 591 of file iamf_writer.c.

Referenced by ambisonics_config(), iamf_write_mixing_presentation(), scalable_channel_layout_config(), and write_parameter_block().

get_loudspeaker_layout()

static void get_loudspeaker_layout ( const AVIAMFLayer * layer, int * playout, int * pexpanded_layout )

static

Definition at line 596 of file iamf_writer.c.

Referenced by iamf_write_audio_element(), and scalable_channel_layout_config().

scalable_channel_layout_config()

static int scalable_channel_layout_config ( const IAMFAudioElement * audio_element, AVIOContext * dyn_bc )

static

Definition at line 631 of file iamf_writer.c.

Referenced by iamf_write_audio_element().

ambisonics_config()

static int ambisonics_config ( const IAMFAudioElement * audio_element, AVIOContext * dyn_bc )

static

Definition at line 669 of file iamf_writer.c.

Referenced by iamf_write_audio_element().

param_definition()

static int param_definition ( const IAMFContext * iamf, const IAMFParamDefinition * param_def, AVIOContext * dyn_bc, void * log_ctx )

static

Definition at line 702 of file iamf_writer.c.

Referenced by add_param_definition(), ff_iamf_add_audio_element(), ff_iamf_add_mix_presentation(), ff_iamf_get_param_definition(), iamf_write_audio_element(), iamf_write_mixing_presentation(), param_parse(), parameter_block_obu(), and write_parameter_block().

iamf_write_audio_element()

static int iamf_write_audio_element ( const IAMFContext * iamf, const IAMFAudioElement * audio_element, AVIOContext * pb, void * log_ctx )

static

Definition at line 743 of file iamf_writer.c.

Referenced by ff_iamf_write_descriptors().

iamf_write_mixing_presentation()

static int iamf_write_mixing_presentation ( const IAMFContext * iamf, const IAMFMixPresentation * mix_presentation, AVIOContext * pb, void * log_ctx )

static

Definition at line 875 of file iamf_writer.c.

Referenced by ff_iamf_write_descriptors().

ff_iamf_write_descriptors()

int ff_iamf_write_descriptors	(	const IAMFContext *	iamf,
		AVIOContext *	pb,
		void *	log_ctx )

Definition at line 1014 of file iamf_writer.c.

Referenced by iamf_write_header(), and iamf_write_trailer().

write_parameter_block()

static int write_parameter_block ( const IAMFContext * iamf, AVIOContext * pb, const AVIAMFParamDefinition * param, void * log_ctx )

static

Definition at line 1047 of file iamf_writer.c.

Referenced by ff_iamf_write_parameter_blocks().

ff_iamf_write_parameter_blocks()

int ff_iamf_write_parameter_blocks	(	const IAMFContext *	iamf,
		AVIOContext *	pb,
		const AVPacket *	pkt,
		void *	log_ctx )

Definition at line 1172 of file iamf_writer.c.

Referenced by iamf_write_packet().

get_audio_element()

static IAMFAudioElement * get_audio_element ( const IAMFContext * c, unsigned int audio_substream_id )

static

Definition at line 1207 of file iamf_writer.c.

Referenced by ff_iamf_write_audio_frame().

ff_iamf_write_audio_frame()

int ff_iamf_write_audio_frame	(	const IAMFContext *	iamf,
		AVIOContext *	pb,
		unsigned	audio_substream_id,
		const AVPacket *	pkt )

Definition at line 1222 of file iamf_writer.c.

Referenced by iamf_write_packet().