virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2025-08-15 14:13:16 +02:00
Code Issues Releases Activity

VP8: fix bug in prefetch

Browse Source 
Motion vectors in VP8 are qpel, not fullpel.

Originally committed as revision 24707 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Jason Garrett-Glaser
2010-08-05 20:03:54 +00:00
parent fa2d5d54b9
commit 7e13022a4d
1 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
libavcodec/vp8.c
View File

@@ -1155,8 +1155,8 @@ static av_always_inline void prefetch_motion(VP8Context *s, VP8Macroblock *mb, i
/* Don't prefetch refs that haven't been used very often this frame. */ /* Don't prefetch refs that haven't been used very often this frame. */
if (s->ref_count[ref-1] > (mb_xy >> 5)) { if (s->ref_count[ref-1] > (mb_xy >> 5)) {
int x_off = mb_x << 4, y_off = mb_y << 4; int x_off = mb_x << 4, y_off = mb_y << 4;
int mx = mb->mv.x + x_off + 8; int mx = (mb->mv.x>>2) + x_off + 8;
int my = mb->mv.y + y_off; int my = (mb->mv.y>>2) + y_off;
uint8_t **src= s->framep[ref]->data; uint8_t **src= s->framep[ref]->data;
int off= mx + (my + (mb_x&3)*4)*s->linesize + 64; int off= mx + (my + (mb_x&3)*4)*s->linesize + 64;
s->dsp.prefetch(src[0]+off, s->linesize, 4); s->dsp.prefetch(src[0]+off, s->linesize, 4);