asvdec.c File Reference

ASUS V1/V2 decoder. More...

#include "libavutil/attributes.h"
#include "libavutil/mem.h"
#include "libavutil/mem_internal.h"
#include "libavutil/thread.h"
#include "asv.h"
#include "avcodec.h"
#include "blockdsp.h"
#include "codec_internal.h"
#include "config_components.h"
#include "decode.h"
#include "get_bits.h"
#include "idctdsp.h"
#include "mpeg12data.h"
#include "vlc.h"

Go to the source code of this file.

Data Structures
struct	ASVDecContext

Macros
#define	CCP_VLC_BITS   5
#define	DC_CCP_VLC_BITS   4
#define	AC_CCP_VLC_BITS   6
#define	ASV1_LEVEL_VLC_BITS   4
#define	ASV2_LEVEL_VLC_BITS   10

Functions
static av_cold void	init_vlcs (void)
static int	asv1_get_level (GetBitContext *gb)
static int	asv2_get_vlc2 (GetBitContext *gb, const VLCElem *table, int bits)
static int	asv2_get_level (GetBitContext *gb)
static int	asv1_decode_block (ASVDecContext *a, int16_t block[64])
static int	asv2_decode_block (ASVDecContext *a, int16_t block[64])
static int	decode_mb (ASVDecContext *a, int16_t block[6][64])
static void	idct_put (ASVDecContext *a, AVFrame *frame, int mb_x, int mb_y)
static int	decode_frame (AVCodecContext *avctx, AVFrame *p, int *got_frame, AVPacket *avpkt)
static av_cold int	decode_init (AVCodecContext *avctx)
static av_cold int	decode_end (AVCodecContext *avctx)

Variables
static VLCElem	ccp_vlc [32]
static VLCElem	level_vlc [16]
static VLCElem	dc_ccp_vlc [16]
static VLCElem	ac_ccp_vlc [64]
static VLCElem	asv2_level_vlc [1024]

Detailed Description

ASUS V1/V2 decoder.

Definition in file asvdec.c.

Macro Definition Documentation

CCP_VLC_BITS

#define CCP_VLC_BITS   5

Definition at line 42 of file asvdec.c.

Referenced by asv1_decode_block(), and init_vlcs().

DC_CCP_VLC_BITS

#define DC_CCP_VLC_BITS   4

Definition at line 43 of file asvdec.c.

Referenced by asv2_decode_block(), and init_vlcs().

AC_CCP_VLC_BITS

#define AC_CCP_VLC_BITS   6

Definition at line 44 of file asvdec.c.

Referenced by asv2_decode_block(), and init_vlcs().

ASV1_LEVEL_VLC_BITS

#define ASV1_LEVEL_VLC_BITS   4

Definition at line 45 of file asvdec.c.

Referenced by asv1_get_level(), and init_vlcs().

ASV2_LEVEL_VLC_BITS

#define ASV2_LEVEL_VLC_BITS   10

Definition at line 46 of file asvdec.c.

Referenced by asv2_get_level(), and init_vlcs().

Function Documentation

init_vlcs()

static av_cold void init_vlcs ( void )

static

Definition at line 68 of file asvdec.c.

asv1_get_level()

static int asv1_get_level ( GetBitContext * gb )

inlinestatic

Definition at line 87 of file asvdec.c.

Referenced by asv1_decode_block().

asv2_get_vlc2()

static int asv2_get_vlc2 ( GetBitContext * gb, const VLCElem * table, int bits )

inlinestatic

Definition at line 98 of file asvdec.c.

Referenced by asv2_decode_block(), and asv2_get_level().

asv2_get_level()

static int asv2_get_level ( GetBitContext * gb )

inlinestatic

Definition at line 116 of file asvdec.c.

Referenced by asv2_decode_block().

asv1_decode_block()

static int asv1_decode_block ( ASVDecContext * a, int16_t block[64] )

inlinestatic

Definition at line 126 of file asvdec.c.

Referenced by decode_mb().

asv2_decode_block()

static int asv2_decode_block ( ASVDecContext * a, int16_t block[64] )

inlinestatic

Definition at line 157 of file asvdec.c.

Referenced by decode_mb().

decode_mb()

static int decode_mb ( ASVDecContext * a, int16_t block[6][64] )

inlinestatic

Definition at line 193 of file asvdec.c.

Referenced by decode_frame().

idct_put()

static void idct_put ( ASVDecContext * a, AVFrame * frame, int mb_x, int mb_y )

inlinestatic

Definition at line 213 of file asvdec.c.

Referenced by decode_frame().

decode_frame()

static int decode_frame ( AVCodecContext * avctx, AVFrame * p, int * got_frame, AVPacket * avpkt )

static

Definition at line 233 of file asvdec.c.

decode_init()

static av_cold int decode_init ( AVCodecContext * avctx )

static

Definition at line 297 of file asvdec.c.

decode_end()

static av_cold int decode_end ( AVCodecContext * avctx )

static

Definition at line 336 of file asvdec.c.

Variable Documentation

ccp_vlc

VLCElem ccp_vlc[32]

static

Definition at line 48 of file asvdec.c.

Referenced by asv1_decode_block(), and init_vlcs().

level_vlc

VLCElem level_vlc[16]

static

Definition at line 49 of file asvdec.c.

Referenced by asv1_get_level(), and init_vlcs().

dc_ccp_vlc

VLCElem dc_ccp_vlc[16]

static

Definition at line 50 of file asvdec.c.

Referenced by asv2_decode_block(), and init_vlcs().

ac_ccp_vlc

VLCElem ac_ccp_vlc[64]

static

Definition at line 51 of file asvdec.c.

Referenced by asv2_decode_block(), and init_vlcs().

asv2_level_vlc

VLCElem asv2_level_vlc[1024]

static

Definition at line 52 of file asvdec.c.

Referenced by asv2_get_level(), and init_vlcs().