libavcodec/snow.c File Reference

#include "libavutil/intmath.h"
#include "libavutil/log.h"
#include "libavutil/opt.h"
#include "avcodec.h"
#include "dsputil.h"
#include "dwt.h"
#include "snow.h"
#include "snowdata.h"
#include "rangecoder.h"
#include "mathops.h"
#include "h263.h"
#include <assert.h>

Go to the source code of this file.

Defines

#define mca(dx, dy, b_w)
#define mcf(dx, dy)
#define mcfh(dx, dy)
#define USE_HALFPEL_PLANE   0

Functions

void ff_snow_inner_add_yblock (const uint8_t *obmc, const int obmc_stride, uint8_t **block, int b_w, int b_h, int src_x, int src_y, int src_stride, slice_buffer *sb, int add, uint8_t *dst8)
void ff_snow_reset_contexts (SnowContext *s)
int ff_snow_alloc_blocks (SnowContext *s)
static void init_qexp (void)
static void mc_block (Plane *p, uint8_t *dst, const uint8_t *src, int stride, int b_w, int b_h, int dx, int dy)
void ff_snow_pred_block (SnowContext *s, uint8_t *dst, uint8_t *tmp, int stride, int sx, int sy, int b_w, int b_h, BlockNode *block, int plane_index, int w, int h)
 mca (mca(0, mca(0, 16)
int ff_snow_common_init_after_header (AVCodecContext *avctx)
static void halfpel_interpol (SnowContext *s, uint8_t *halfpel[4][4], AVFrame *frame)
void ff_snow_release_buffer (AVCodecContext *avctx)
int ff_snow_frame_start (SnowContext *s)
av_cold void ff_snow_common_end (SnowContext *s)


Define Documentation

#define mca ( dx,
dy,
b_w   ) 

Value:

static void mc_block_hpel ## dx ## dy ## b_w(uint8_t *dst, const uint8_t *src, int stride, int h){\
    assert(h==b_w);\
    mc_block(NULL, dst, src-(HTAPS_MAX/2-1)-(HTAPS_MAX/2-1)*stride, stride, b_w, b_w, dx, dy);\
}

Definition at line 370 of file snow.c.

#define mcf ( dx,
dy   ) 

Value:

s->dsp.put_qpel_pixels_tab       [0][dy+dx/4]=\
    s->dsp.put_no_rnd_qpel_pixels_tab[0][dy+dx/4]=\
        s->dsp.put_h264_qpel_pixels_tab[0][dy+dx/4];\
    s->dsp.put_qpel_pixels_tab       [1][dy+dx/4]=\
    s->dsp.put_no_rnd_qpel_pixels_tab[1][dy+dx/4]=\
        s->dsp.put_h264_qpel_pixels_tab[1][dy+dx/4];

Referenced by mca().

#define mcfh ( dx,
dy   ) 

Value:

s->dsp.put_pixels_tab       [0][dy/4+dx/8]=\
    s->dsp.put_no_rnd_pixels_tab[0][dy/4+dx/8]=\
        mc_block_hpel ## dx ## dy ## 16;\
    s->dsp.put_pixels_tab       [1][dy/4+dx/8]=\
    s->dsp.put_no_rnd_pixels_tab[1][dy/4+dx/8]=\
        mc_block_hpel ## dx ## dy ## 8;

Referenced by mca().

#define USE_HALFPEL_PLANE   0

Definition at line 507 of file snow.c.

Referenced by ff_snow_frame_start().


Function Documentation

int ff_snow_alloc_blocks ( SnowContext s  ) 

Definition at line 85 of file snow.c.

Referenced by decode_frame().

av_cold void ff_snow_common_end ( SnowContext s  ) 

Definition at line 616 of file snow.c.

Referenced by decode_end().

int ff_snow_common_init_after_header ( AVCodecContext avctx  ) 

Definition at line 454 of file snow.c.

Referenced by decode_frame().

int ff_snow_frame_start ( SnowContext s  ) 

Definition at line 564 of file snow.c.

Referenced by decode_frame().

void ff_snow_inner_add_yblock ( const uint8_t *  obmc,
const int  obmc_stride,
uint8_t **  block,
int  b_w,
int  b_h,
int  src_x,
int  src_y,
int  src_stride,
slice_buffer sb,
int  add,
uint8_t *  dst8 
)

Definition at line 38 of file snow.c.

Referenced by ff_dwt_init(), ff_snow_inner_add_yblock_mmx(), and ff_snow_inner_add_yblock_sse2().

void ff_snow_pred_block ( SnowContext s,
uint8_t *  dst,
uint8_t *  tmp,
int  stride,
int  sx,
int  sy,
int  b_w,
int  b_h,
BlockNode block,
int  plane_index,
int  w,
int  h 
)

Definition at line 290 of file snow.c.

Referenced by add_yblock().

void ff_snow_release_buffer ( AVCodecContext avctx  ) 

Definition at line 551 of file snow.c.

Referenced by decode_frame(), and ff_snow_frame_start().

void ff_snow_reset_contexts ( SnowContext s  ) 

Definition at line 71 of file snow.c.

Referenced by decode_header().

static void halfpel_interpol ( SnowContext s,
uint8_t *  halfpel[4][4],
AVFrame frame 
) [static]

Definition at line 509 of file snow.c.

Referenced by ff_snow_frame_start().

static void init_qexp ( void   )  [static]

Definition at line 97 of file snow.c.

Referenced by mca().

static void mc_block ( Plane p,
uint8_t *  dst,
const uint8_t *  src,
int  stride,
int  b_w,
int  b_h,
int  dx,
int  dy 
) [static]

Definition at line 106 of file snow.c.

Referenced by ff_snow_pred_block().

mca ( mca(  0,
mca(  0,
16   
)

Definition at line 376 of file snow.c.


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