libavcodec/mpc8.c File Reference

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

#include "libavutil/lfg.h"
#include "avcodec.h"
#include "get_bits.h"
#include "dsputil.h"
#include "mpegaudiodsp.h"
#include "libavutil/audioconvert.h"
#include "mpc.h"
#include "mpc8data.h"
#include "mpc8huff.h"

Go to the source code of this file.

Functions

static int mpc8_dec_base (GetBitContext *gb, int k, int n)

static int mpc8_dec_enum (GetBitContext *gb, int k, int n)

static int mpc8_get_mod_golomb (GetBitContext *gb, int m)

static int mpc8_get_mask (GetBitContext *gb, int size, int t)

static av_cold int mpc8_decode_init (AVCodecContext *avctx)

static int mpc8_decode_frame (AVCodecContext *avctx, void *data, int *got_frame_ptr, AVPacket *avpkt)

Variables

static VLC band_vlc

static VLC scfi_vlc [2]

static VLC dscf_vlc [2]

static VLC res_vlc [2]

static VLC q1_vlc

static VLC q2_vlc [2]

static VLC q3_vlc [2]

static VLC quant_vlc [4][2]

static VLC q9up_vlc

static const int q3_offsets [2] = { MPC8_Q3_OFFSET, MPC8_Q4_OFFSET }

static const int quant_offsets [6] = { MPC8_Q5_OFFSET, MPC8_Q6_OFFSET, MPC8_Q7_OFFSET, MPC8_Q8_OFFSET }

static const uint16_t vlc_offsets [13]

AVCodec ff_mpc8_decoder

Detailed Description

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

Definition in file mpc8.c.

Function Documentation

static int mpc8_dec_base	(	GetBitContext *	gb,
		int	k,
		int	n
	)			`[inline, static]`

Definition at line 45 of file mpc8.c.

Referenced by mpc8_dec_enum(), and mpc8_get_mod_golomb().

static int mpc8_dec_enum	(	GetBitContext *	gb,
		int	k,
		int	n
	)			`[inline, static]`

Definition at line 56 of file mpc8.c.

Referenced by mpc8_get_mask().

static int mpc8_decode_frame	(	AVCodecContext *	avctx,
		void *	data,
		int *	got_frame_ptr,
		AVPacket *	avpkt
	)			`[static]`

Definition at line 240 of file mpc8.c.

static av_cold int mpc8_decode_init ( AVCodecContext * avctx ) [static]

Definition at line 96 of file mpc8.c.

static int mpc8_get_mask	(	GetBitContext *	gb,
		int	size,
		int	t
	)			`[static]`

Definition at line 81 of file mpc8.c.

Referenced by mpc8_decode_frame().

static int mpc8_get_mod_golomb	(	GetBitContext *	gb,
		int	m
	)			`[inline, static]`

Definition at line 75 of file mpc8.c.

Referenced by mpc8_decode_frame().

Variable Documentation

VLC band_vlc [static]

Definition at line 39 of file mpc8.c.

VLC dscf_vlc[2] [static]

Definition at line 39 of file mpc8.c.

AVCodec ff_mpc8_decoder

Initial value:

 {
    .name           = "mpc8",
    .type           = AVMEDIA_TYPE_AUDIO,
    .id             = CODEC_ID_MUSEPACK8,
    .priv_data_size = sizeof(MPCContext),
    .init           = mpc8_decode_init,
    .decode         = mpc8_decode_frame,
    .capabilities   = CODEC_CAP_DR1,
    .long_name = NULL_IF_CONFIG_SMALL("Musepack SV8"),
}

Definition at line 424 of file mpc8.c.

VLC q1_vlc [static]