mpc8.c File Reference

#include "libavutil/channel_layout.h"
#include "libavutil/lfg.h"
#include "libavutil/thread.h"
#include "avcodec.h"
#include "codec_internal.h"
#include "decode.h"
#include "get_bits.h"
#include "mpegaudiodsp.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 void	build_vlc (VLC *vlc, unsigned *buf_offset, const uint8_t codes_counts[16], const uint8_t **syms, int offset)
static av_cold void	mpc8_init_static (void)
static av_cold int	mpc8_decode_init (AVCodecContext *avctx)
static int	mpc8_decode_frame (AVCodecContext *avctx, AVFrame *frame, int *got_frame_ptr, AVPacket *avpkt)
static av_cold void	mpc8_decode_flush (AVCodecContext *avctx)

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
const FFCodec	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

mpc8_dec_base()

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

inlinestatic

Definition at line 44 of file mpc8.c.

Referenced by mpc8_dec_enum(), and mpc8_get_mod_golomb().

mpc8_dec_enum()

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

inlinestatic

Definition at line 55 of file mpc8.c.

Referenced by mpc8_get_mask().

mpc8_get_mod_golomb()

static int mpc8_get_mod_golomb ( GetBitContext *  gb, int  m  )

inlinestatic

Definition at line 74 of file mpc8.c.

Referenced by mpc8_decode_frame().

mpc8_get_mask()

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

static

Definition at line 80 of file mpc8.c.

Referenced by mpc8_decode_frame().

build_vlc()

static av_cold void build_vlc ( VLC *  vlc, unsigned *  buf_offset, const uint8_t  codes_counts[16], const uint8_t **  syms, int  offset  )

static

Definition at line 91 of file mpc8.c.

Referenced by mpc8_init_static().

mpc8_init_static()

static av_cold void mpc8_init_static ( void  )

static

Definition at line 112 of file mpc8.c.

Referenced by mpc8_decode_init().

mpc8_decode_init()

static av_cold int mpc8_decode_init ( AVCodecContext *  avctx )

static

Definition at line 141 of file mpc8.c.

mpc8_decode_frame()

static int mpc8_decode_frame ( AVCodecContext *  avctx, AVFrame *  frame, int *  got_frame_ptr, AVPacket *  avpkt  )

static

Definition at line 181 of file mpc8.c.

mpc8_decode_flush()

static av_cold void mpc8_decode_flush ( AVCodecContext *  avctx )

static

Definition at line 380 of file mpc8.c.

Variable Documentation

band_vlc

VLC band_vlc

static

Definition at line 41 of file mpc8.c.

Referenced by mpc8_decode_frame(), and mpc8_init_static().

scfi_vlc

VLC scfi_vlc[2]

static

Definition at line 41 of file mpc8.c.

Referenced by mpc8_decode_frame(), and mpc8_init_static().

dscf_vlc

VLC dscf_vlc[2]

static

Definition at line 41 of file mpc8.c.

Referenced by mpc8_decode_frame(), and mpc8_init_static().

res_vlc

VLC res_vlc[2]

static

Definition at line 41 of file mpc8.c.

Referenced by mpc8_decode_frame(), and mpc8_init_static().

q1_vlc

VLC q1_vlc

static

Definition at line 42 of file mpc8.c.

Referenced by mpc8_decode_frame(), and mpc8_init_static().

q2_vlc

VLC q2_vlc[2]

static

Definition at line 42 of file mpc8.c.

Referenced by mpc8_decode_frame(), and mpc8_init_static().

q3_vlc

VLC q3_vlc[2]

static

Definition at line 42 of file mpc8.c.

Referenced by mpc8_decode_frame(), and mpc8_init_static().

quant_vlc

VLC quant_vlc[4][2]

static

Definition at line 42 of file mpc8.c.

Referenced by mpc8_decode_frame(), and mpc8_init_static().

q9up_vlc

VLC q9up_vlc

static

Definition at line 42 of file mpc8.c.

Referenced by mpc8_decode_frame(), and mpc8_init_static().

ff_mpc8_decoder

const FFCodec ff_mpc8_decoder

Initial value:

= {
    .p.name         = "mpc8",
    CODEC_LONG_NAME("Musepack SV8"),
    .p.type         = AVMEDIA_TYPE_AUDIO,
    .p.id           = AV_CODEC_ID_MUSEPACK8,
    .priv_data_size = sizeof(MPCContext),
    .init           = mpc8_decode_init,
    FF_CODEC_DECODE_CB(mpc8_decode_frame),
    .flush          = mpc8_decode_flush,
    .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_CHANNEL_CONF,
    .p.sample_fmts  = (const enum AVSampleFormat[]) { AV_SAMPLE_FMT_S16P,
                                                      AV_SAMPLE_FMT_NONE },
}

Definition at line 386 of file mpc8.c.