libavcodec/mpc7.c File Reference

Musepack SV7 decoder MPEG Audio Layer 1/2 -like codec with frames of 1152 samples divided into 32 subbands. More...

#include "libavutil/random.h"
#include "avcodec.h"
#include "bitstream.h"
#include "dsputil.h"
#include "mpegaudio.h"
#include "mpc.h"
#include "mpc7data.h"

Go to the source code of this file.

Defines
#define	BANDS   32
#define	SAMPLES_PER_BAND   36
#define	MPC_FRAME_SIZE   (BANDS * SAMPLES_PER_BAND)
Functions
static av_cold int	mpc7_decode_init (AVCodecContext *avctx)
static void	idx_to_quant (MPCContext *c, GetBitContext *gb, int idx, int *dst)
	Fill samples for given subband.
static int	mpc7_decode_frame (AVCodecContext *avctx, void *data, int *data_size, const uint8_t *buf, int buf_size)
static void	mpc7_decode_flush (AVCodecContext *avctx)
Variables
static VLC	scfi_vlc
static VLC	dscf_vlc
static VLC	hdr_vlc
static VLC	quant_vlc [MPC7_QUANT_VLC_TABLES][2]
AVCodec	mpc7_decoder

---

Detailed Description

Musepack SV7 decoder MPEG Audio Layer 1/2 -like codec with frames of 1152 samples divided into 32 subbands.

Definition in file mpc7.c.

---

Define Documentation

#define BANDS   32

Definition at line 37 of file mpc7.c.

#define MPC_FRAME_SIZE   (BANDS * SAMPLES_PER_BAND)

Definition at line 39 of file mpc7.c.

#define SAMPLES_PER_BAND   36

Definition at line 38 of file mpc7.c.

---

Function Documentation

static void idx_to_quant	(	MPCContext *	c,
		GetBitContext *	gb,
		int	idx,
		int *	dst
	)			[inline, static]

Fill samples for given subband.

Definition at line 115 of file mpc7.c.

Referenced by mpc7_decode_frame().

static void mpc7_decode_flush

(

AVCodecContext *

avctx

)

[static]

Definition at line 263 of file mpc7.c.

static int mpc7_decode_frame	(	AVCodecContext *	avctx,
		void *	data,
		int *	data_size,
		const uint8_t *	buf,
		int	buf_size
	)			[static]

Definition at line 157 of file mpc7.c.

static av_cold int mpc7_decode_init

(

AVCodecContext *

avctx

)

[static]

Definition at line 43 of file mpc7.c.

---

Variable Documentation

VLC dscf_vlc [static]

Definition at line 41 of file mpc7.c.

VLC hdr_vlc [static]

Definition at line 41 of file mpc7.c.

AVCodec mpc7_decoder

Initial value:

 {
    "mpc7",
    CODEC_TYPE_AUDIO,
    CODEC_ID_MUSEPACK7,
    sizeof(MPCContext),
    mpc7_decode_init,
    NULL,
    NULL,
    mpc7_decode_frame,
    .flush = mpc7_decode_flush,
    .long_name = NULL_IF_CONFIG_SMALL("Musepack SV7"),
}

Definition at line 271 of file mpc7.c.

VLC quant_vlc[MPC7_QUANT_VLC_TABLES][2] [static]

Definition at line 41 of file mpc7.c.

VLC scfi_vlc [static]

Definition at line 41 of file mpc7.c.