dsddec.c File Reference

Direct Stream Digital (DSD) decoder. More...

#include "libavcodec/internal.h"
#include "libavcodec/mathops.h"
#include "avcodec.h"
#include "dsd_tablegen.h"

Go to the source code of this file.

Data Structures
struct	DSDContext
	Per-channel buffer. More...

Macros
#define	FIFOSIZE   16 /** must be a power of two */
#define	FIFOMASK   (FIFOSIZE - 1) /** bit mask for FIFO offsets */
#define	DSD_DECODER(id_, name_, long_name_)

Functions
static void	dsd2pcm_translate (DSDContext *s, size_t samples, int lsbf, const unsigned char *src, ptrdiff_t src_stride, float *dst, ptrdiff_t dst_stride)
static av_cold void	init_static_data (void)
static av_cold int	decode_init (AVCodecContext *avctx)
static int	decode_frame (AVCodecContext *avctx, void *data, int *got_frame_ptr, AVPacket *avpkt)

Detailed Description

Direct Stream Digital (DSD) decoder.

Definition in file dsddec.c.

Macro Definition Documentation

#define FIFOSIZE   16 /** must be a power of two */

Definition at line 34 of file dsddec.c.

#define FIFOMASK   (FIFOSIZE - 1) /** bit mask for FIFO offsets */

Definition at line 35 of file dsddec.c.

Referenced by dsd2pcm_translate().

#define DSD_DECODER	(		id_,
			name_,
			long_name_
	)

Value:

AVCodec ff_##name_##_decoder = { \
    .name         = #name_, \
    .long_name    = NULL_IF_CONFIG_SMALL(long_name_), \
    .type         = AVMEDIA_TYPE_AUDIO, \
    .id           = AV_CODEC_ID_##id_, \
    .init         = decode_init, \
    .decode       = decode_frame, \
    .sample_fmts  = (const enum AVSampleFormat[]){ AV_SAMPLE_FMT_FLTP, \
                                                   AV_SAMPLE_FMT_NONE }, \
};

Definition at line 152 of file dsddec.c.

Function Documentation

static void dsd2pcm_translate ( DSDContext *  s, size_t  samples, int  lsbf, const unsigned char *  src, ptrdiff_t  src_stride, float *  dst, ptrdiff_t  dst_stride  )

static

Definition at line 49 of file dsddec.c.

Referenced by decode_frame().

static av_cold void init_static_data ( void  )

static

Definition at line 82 of file dsddec.c.

Referenced by decode_init().

static av_cold int decode_init ( AVCodecContext *  avctx )

static

Definition at line 91 of file dsddec.c.

static int decode_frame ( AVCodecContext *  avctx, void *  data, int *  got_frame_ptr, AVPacket *  avpkt  )

static

Definition at line 118 of file dsddec.c.