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halfpel MC doxy

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Originally committed as revision 1684 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2003-03-15 02:06:09 +00:00
parent 5beaa01b4a
commit d518aebdee
1 changed files with 41 additions and 0 deletions
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41
libavcodec/dsputil.h
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@ -116,7 +116,13 @@ typedef struct DSPContext {
void (*diff_pixels)(DCTELEM *block/*align 16*/, const uint8_t *s1/*align 8*/, const uint8_t *s2/*align 8*/, int stride);
void (*put_pixels_clamped)(const DCTELEM *block/*align 16*/, uint8_t *pixels/*align 8*/, int line_size);
void (*add_pixels_clamped)(const DCTELEM *block/*align 16*/, uint8_t *pixels/*align 8*/, int line_size);
/**
* translational global motion compensation.
*/
void (*gmc1)(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int srcStride, int h, int x16, int y16, int rounder);
/**
* global motion compensation.
*/
void (*gmc )(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int stride, int h, int ox, int oy,
int dxx, int dxy, int dyx, int dyy, int shift, int r, int width, int height);
void (*clear_blocks)(DCTELEM *blocks/*align 16*/);
@ -137,9 +143,44 @@ typedef struct DSPContext {
me_cmp_func mb_cmp[11];
/* maybe create an array for 16/8 functions */
/**
* Halfpel motion compensation with rounding (a+b+1)>>1.
* *pixels_tab[ 0->16x16 1->8x8 ][ xhalfpel + 2*yhalfpel ]
* @param block destination where the result is stored
* @param pixels source
* @param line_size number of bytes in a horizontal line of block
* @param h height
*/
op_pixels_func put_pixels_tab[2][4];
/**
* Halfpel motion compensation with rounding (a+b+1)>>1.
* *pixels_tab[ 0->16x16 1->8x8 ][ xhalfpel + 2*yhalfpel ]
* @param block destination into which the result is averaged (a+b+1)>>1
* @param pixels source
* @param line_size number of bytes in a horizontal line of block
* @param h height
*/
op_pixels_func avg_pixels_tab[2][4];
/**
* Halfpel motion compensation with no rounding (a+b)>>1.
* *pixels_tab[ 0->16x16 1->8x8 ][ xhalfpel + 2*yhalfpel ]
* @param block destination where the result is stored
* @param pixels source
* @param line_size number of bytes in a horizontal line of block
* @param h height
*/
op_pixels_func put_no_rnd_pixels_tab[2][4];
/**
* Halfpel motion compensation with no rounding (a+b)>>1.
* *pixels_tab[ 0->16x16 1->8x8 ][ xhalfpel + 2*yhalfpel ]
* @param block destination into which the result is averaged (a+b)>>1
* @param pixels source
* @param line_size number of bytes in a horizontal line of block
* @param h height
*/
op_pixels_func avg_no_rnd_pixels_tab[2][4];
qpel_mc_func put_qpel_pixels_tab[2][16];
qpel_mc_func avg_qpel_pixels_tab[2][16];