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Macros | Functions | Variables
msmpeg4.c File Reference

MSMPEG4 backend for encoder and decoder. More...

#include "avcodec.h"
#include "dsputil.h"
#include "mpegvideo.h"
#include "msmpeg4.h"
#include "libavutil/x86/asm.h"
#include "h263.h"
#include "mpeg4video.h"
#include "msmpeg4data.h"
#include "vc1data.h"
#include "libavutil/imgutils.h"

Go to the source code of this file.

Macros

#define DC_VLC_BITS   9
 
#define V2_INTRA_CBPC_VLC_BITS   3
 
#define V2_MB_TYPE_VLC_BITS   7
 
#define MV_VLC_BITS   9
 
#define V2_MV_VLC_BITS   9
 
#define TEX_VLC_BITS   9
 
#define DEFAULT_INTER_INDEX   3
 

Functions

static av_cold void init_h263_dc_for_msmpeg4 (void)
 
av_cold void ff_msmpeg4_common_init (MpegEncContext *s)
 
int ff_msmpeg4_coded_block_pred (MpegEncContext *s, int n, uint8_t **coded_block_ptr)
 
static int msmpeg4v1_pred_dc (MpegEncContext *s, int n, int32_t **dc_val_ptr)
 
static int get_dc (uint8_t *src, int stride, int scale)
 
int ff_msmpeg4_pred_dc (MpegEncContext *s, int n, int16_t **dc_val_ptr, int *dir_ptr)
 
static int msmpeg4v2_decode_motion (MpegEncContext *s, int pred, int f_code)
 
static int msmpeg4v12_decode_mb (MpegEncContext *s, DCTELEM block[6][64])
 
static int msmpeg4v34_decode_mb (MpegEncContext *s, DCTELEM block[6][64])
 
av_cold int ff_msmpeg4_decode_init (AVCodecContext *avctx)
 
int ff_msmpeg4_decode_picture_header (MpegEncContext *s)
 
int ff_msmpeg4_decode_ext_header (MpegEncContext *s, int buf_size)
 
static int msmpeg4_decode_dc (MpegEncContext *s, int n, int *dir_ptr)
 
int ff_msmpeg4_decode_block (MpegEncContext *s, DCTELEM *block, int n, int coded, const uint8_t *scan_table)
 
int ff_msmpeg4_decode_motion (MpegEncContext *s, int *mx_ptr, int *my_ptr)
 

Variables

VLC ff_mb_non_intra_vlc [4]
 
static VLC v2_dc_lum_vlc
 
static VLC v2_dc_chroma_vlc
 
static VLC v2_intra_cbpc_vlc
 
static VLC v2_mb_type_vlc
 
static VLC v2_mv_vlc
 
VLC ff_inter_intra_vlc
 
AVCodec ff_msmpeg4v1_decoder
 
AVCodec ff_msmpeg4v2_decoder
 
AVCodec ff_msmpeg4v3_decoder
 
AVCodec ff_wmv1_decoder
 

Detailed Description

MSMPEG4 backend for encoder and decoder.

Definition in file msmpeg4.c.

Macro Definition Documentation

#define DC_VLC_BITS   9

Definition at line 50 of file msmpeg4.c.

Referenced by ff_msmpeg4_decode_init(), and msmpeg4_decode_dc().

#define V2_INTRA_CBPC_VLC_BITS   3

Definition at line 51 of file msmpeg4.c.

Referenced by ff_msmpeg4_decode_init(), and msmpeg4v12_decode_mb().

#define V2_MB_TYPE_VLC_BITS   7

Definition at line 52 of file msmpeg4.c.

Referenced by ff_msmpeg4_decode_init(), and msmpeg4v12_decode_mb().

#define MV_VLC_BITS   9

Definition at line 53 of file msmpeg4.c.

Referenced by ff_msmpeg4_decode_init(), and ff_msmpeg4_decode_motion().

#define V2_MV_VLC_BITS   9

Definition at line 54 of file msmpeg4.c.

Referenced by ff_msmpeg4_decode_init(), and msmpeg4v2_decode_motion().

#define TEX_VLC_BITS   9

Definition at line 55 of file msmpeg4.c.

Referenced by ff_msmpeg4_decode_block().

#define DEFAULT_INTER_INDEX   3

Definition at line 57 of file msmpeg4.c.

Referenced by msmpeg4v34_decode_mb().

Function Documentation

static av_cold void init_h263_dc_for_msmpeg4 ( void  )
static

Definition at line 61 of file msmpeg4.c.

Referenced by ff_msmpeg4_common_init().

av_cold void ff_msmpeg4_common_init ( MpegEncContext s)

Definition at line 118 of file msmpeg4.c.

Referenced by ff_msmpeg4_decode_init(), and ff_msmpeg4_encode_init().

int ff_msmpeg4_coded_block_pred ( MpegEncContext s,
int  n,
uint8_t **  coded_block_ptr 
)
static int msmpeg4v1_pred_dc ( MpegEncContext s,
int  n,
int32_t **  dc_val_ptr 
)
inlinestatic

Definition at line 188 of file msmpeg4.c.

Referenced by msmpeg4_decode_dc().

static int get_dc ( uint8_t src,
int  stride,
int  scale 
)
static

Definition at line 203 of file msmpeg4.c.

Referenced by ff_msmpeg4_pred_dc().

int ff_msmpeg4_pred_dc ( MpegEncContext s,
int  n,
int16_t **  dc_val_ptr,
int *  dir_ptr 
)

Definition at line 217 of file msmpeg4.c.

Referenced by msmpeg4_decode_dc(), and msmpeg4_encode_dc().

static int msmpeg4v2_decode_motion ( MpegEncContext s,
int  pred,
int  f_code 
)
static

Definition at line 376 of file msmpeg4.c.

Referenced by msmpeg4v12_decode_mb().

static int msmpeg4v12_decode_mb ( MpegEncContext s,
DCTELEM  block[6][64] 
)
static

Definition at line 407 of file msmpeg4.c.

Referenced by ff_msmpeg4_decode_init().

static int msmpeg4v34_decode_mb ( MpegEncContext s,
DCTELEM  block[6][64] 
)
static

Definition at line 497 of file msmpeg4.c.

Referenced by ff_msmpeg4_decode_init().

av_cold int ff_msmpeg4_decode_init ( AVCodecContext avctx)

Definition at line 590 of file msmpeg4.c.

Referenced by vc1_decode_frame(), vc1_decode_init(), wmv2_decode_init(), and wmv9_init().

int ff_msmpeg4_decode_picture_header ( MpegEncContext s)

Definition at line 700 of file msmpeg4.c.

Referenced by ff_h263_decode_frame().

int ff_msmpeg4_decode_ext_header ( MpegEncContext s,
int  buf_size 
)

Definition at line 855 of file msmpeg4.c.

Referenced by ff_h263_decode_frame(), and ff_msmpeg4_decode_picture_header().

static int msmpeg4_decode_dc ( MpegEncContext s,
int  n,
int *  dir_ptr 
)
static

Definition at line 883 of file msmpeg4.c.

Referenced by ff_msmpeg4_decode_block().

int ff_msmpeg4_decode_block ( MpegEncContext s,
DCTELEM block,
int  n,
int  coded,
const uint8_t scan_table 
)
int ff_msmpeg4_decode_motion ( MpegEncContext s,
int *  mx_ptr,
int *  my_ptr 
)

Definition at line 1177 of file msmpeg4.c.

Referenced by msmpeg4v34_decode_mb(), and wmv2_decode_motion().

Variable Documentation

VLC ff_mb_non_intra_vlc[4]

Definition at line 367 of file msmpeg4.c.

Referenced by ff_wmv2_decode_mb().

VLC v2_dc_lum_vlc
static

Definition at line 368 of file msmpeg4.c.

VLC v2_dc_chroma_vlc
static

Definition at line 369 of file msmpeg4.c.

VLC v2_intra_cbpc_vlc
static

Definition at line 370 of file msmpeg4.c.

VLC v2_mb_type_vlc
static

Definition at line 371 of file msmpeg4.c.

VLC v2_mv_vlc
static

Definition at line 372 of file msmpeg4.c.

VLC ff_inter_intra_vlc

Definition at line 373 of file msmpeg4.c.

Referenced by ff_wmv2_decode_mb().

AVCodec ff_msmpeg4v1_decoder
Initial value:
= {
.name = "msmpeg4v1",
.priv_data_size = sizeof(MpegEncContext),
.max_lowres = 3,
.long_name = NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 1"),
.pix_fmts = ff_pixfmt_list_420,
}

Definition at line 1215 of file msmpeg4.c.

AVCodec ff_msmpeg4v2_decoder
Initial value:
= {
.name = "msmpeg4v2",
.priv_data_size = sizeof(MpegEncContext),
.max_lowres = 3,
.long_name = NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 2"),
.pix_fmts = ff_pixfmt_list_420,
}

Definition at line 1229 of file msmpeg4.c.

AVCodec ff_msmpeg4v3_decoder
Initial value:
= {
.name = "msmpeg4",
.priv_data_size = sizeof(MpegEncContext),
.max_lowres = 3,
.long_name = NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 3"),
.pix_fmts = ff_pixfmt_list_420,
}

Definition at line 1243 of file msmpeg4.c.

AVCodec ff_wmv1_decoder
Initial value:
= {
.name = "wmv1",
.priv_data_size = sizeof(MpegEncContext),
.max_lowres = 3,
.long_name = NULL_IF_CONFIG_SMALL("Windows Media Video 7"),
.pix_fmts = ff_pixfmt_list_420,
}

Definition at line 1257 of file msmpeg4.c.