sbcdec.c File Reference

SBC decoder implementation. More...

#include "avcodec.h"
#include "codec_internal.h"
#include "decode.h"
#include "libavutil/channel_layout.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/mem_internal.h"
#include "sbc.h"
#include "sbcdec_data.h"

Go to the source code of this file.

Data Structures
struct	sbc_decoder_state
struct	SBCDecContext

Functions
static int	sbc_unpack_frame (const uint8_t *data, struct sbc_frame *frame, size_t len)
static void	sbc_synthesize_four (struct sbc_decoder_state *state, struct sbc_frame *frame, int ch, int blk, AVFrame *output_frame)
static void	sbc_synthesize_eight (struct sbc_decoder_state *state, struct sbc_frame *frame, int ch, int blk, AVFrame *output_frame)
static void	sbc_synthesize_audio (struct sbc_decoder_state *state, struct sbc_frame *frame, AVFrame *output_frame)
static av_cold int	sbc_decode_init (AVCodecContext *avctx)
static int	sbc_decode_frame (AVCodecContext *avctx, AVFrame *frame, int *got_frame_ptr, AVPacket *avpkt)

Variables
const FFCodec	ff_sbc_decoder

Detailed Description

SBC decoder implementation.

Definition in file sbcdec.c.

Function Documentation

sbc_unpack_frame()

static int sbc_unpack_frame ( const uint8_t * data, struct sbc_frame * frame, size_t len )

static

Definition at line 63 of file sbcdec.c.

Referenced by sbc_decode_frame().

sbc_synthesize_four()

static void sbc_synthesize_four ( struct sbc_decoder_state * state, struct sbc_frame * frame, int ch, int blk, AVFrame * output_frame )

inlinestatic

Definition at line 213 of file sbcdec.c.

Referenced by sbc_synthesize_audio().

sbc_synthesize_eight()

static void sbc_synthesize_eight ( struct sbc_decoder_state * state, struct sbc_frame * frame, int ch, int blk, AVFrame * output_frame )

inlinestatic

Definition at line 256 of file sbcdec.c.

Referenced by sbc_synthesize_audio().

sbc_synthesize_audio()

static void sbc_synthesize_audio ( struct sbc_decoder_state * state, struct sbc_frame * frame, AVFrame * output_frame )

static

Definition at line 303 of file sbcdec.c.

Referenced by sbc_decode_frame().

sbc_decode_init()

static av_cold int sbc_decode_init ( AVCodecContext * avctx )

static

Definition at line 323 of file sbcdec.c.

sbc_decode_frame()

static int sbc_decode_frame ( AVCodecContext * avctx, AVFrame * frame, int * got_frame_ptr, AVPacket * avpkt )

static

Definition at line 339 of file sbcdec.c.

Variable Documentation

ff_sbc_decoder

const FFCodec ff_sbc_decoder

Initial value:

= {
    .p.name                = "sbc",
    CODEC_LONG_NAME("SBC (low-complexity subband codec)"),
    .p.type                = AVMEDIA_TYPE_AUDIO,
    .p.id                  = AV_CODEC_ID_SBC,
    .priv_data_size        = sizeof(SBCDecContext),
    .init                  = sbc_decode_init,
    FF_CODEC_DECODE_CB(sbc_decode_frame),
    .p.capabilities        = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_CHANNEL_CONF,
}

Definition at line 364 of file sbcdec.c.