diff options
| author | Michael Niedermayer <michaelni@gmx.at> | 2003-12-30 19:19:45 +0000 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2003-12-30 19:19:45 +0000 |
| commit | 7d67aa9b0f3bd2cb6c023e8b9e537606aa6b08d9 (patch) | |
| tree | 3dae406b3cfcdfc63da8418d3d4479cf43a883b8 | |
| parent | bb198e198abc42753274edc376fdd15543694315 (diff) | |
info about h and tpel
Originally committed as revision 2639 to svn://svn.ffmpeg.org/ffmpeg/trunk
| -rw-r--r-- | doc/optimization.txt | 3 | ||||
| -rw-r--r-- | libavcodec/dsputil.h | 4 |
2 files changed, 6 insertions, 1 deletions
diff --git a/doc/optimization.txt b/doc/optimization.txt index 87e9d88468..6bba4c078a 100644 --- a/doc/optimization.txt +++ b/doc/optimization.txt @@ -60,6 +60,9 @@ qpel{8,16}_mc??_old_c / *pixels{8,16}_l4 just used to workaround a bug in old libavcodec encoder dont optimze them +tpel_mc_func {put,avg}_tpel_pixels_tab + used only for SVQ3, so only optimze them if u need fast SVQ3 decoding + add_bytes/diff_bytes for huffyuv only, optimize if u want a faster ff-huffyuv codec diff --git a/libavcodec/dsputil.h b/libavcodec/dsputil.h index 0bd85e19ec..30779c34e6 100644 --- a/libavcodec/dsputil.h +++ b/libavcodec/dsputil.h @@ -79,6 +79,7 @@ void clear_blocks_c(DCTELEM *blocks); /* add and put pixel (decoding) */ // blocksizes for op_pixels_func are 8x4,8x8 16x8 16x16 +//h for op_pixels_func is limited to {width/2, width} but never larger than 16 and never smaller then 4 typedef void (*op_pixels_func)(uint8_t *block/*align width (8 or 16)*/, const uint8_t *pixels/*align 1*/, int line_size, int h); typedef void (*tpel_mc_func)(uint8_t *block/*align width (8 or 16)*/, const uint8_t *pixels/*align 1*/, int line_size, int w, int h); typedef void (*qpel_mc_func)(uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride); @@ -109,7 +110,8 @@ static void a(uint8_t *block, const uint8_t *pixels, int line_size, int h){\ } /* motion estimation */ - +// h is limited to {width/2, width, 2*width} but never larger than 16 and never smaller then 2 +// allthough currently h<4 is not used as functions with width <8 are not used and neither implemented typedef int (*me_cmp_func)(void /*MpegEncContext*/ *s, uint8_t *blk1/*align width (8 or 16)*/, uint8_t *blk2/*align 1*/, int line_size, int h)/* __attribute__ ((const))*/; |