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| author | Ronaldo Moura <ronaldo.moura@monity.com.br> | 2010-05-07 21:59:18 +0000 |
|---|---|---|
| committer | Måns Rullgård <mans@mansr.com> | 2010-05-07 21:59:18 +0000 |
| commit | 447a5b1996805e9e91acc5cb459ea1a047db12a1 (patch) | |
| tree | 82434df18955412e640d8b8d9a029a28aa1986fe /libswscale | |
| parent | f66b390582bc3760770461b4332b34c2b283dbf6 (diff) | |
| download | ffmpeg-447a5b1996805e9e91acc5cb459ea1a047db12a1.tar.gz | |
blackfin: fix yuv422 to yuv420 conversion
The old code is correct only when stride = 2*width.
Patch by Ronaldo Moura <ronaldo d moura monity com br>
Originally committed as revision 31142 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale
Diffstat (limited to 'libswscale')
| -rw-r--r-- | libswscale/bfin/internal_bfin.S | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/libswscale/bfin/internal_bfin.S b/libswscale/bfin/internal_bfin.S index 98f69ef53f..5af46540a8 100644 --- a/libswscale/bfin/internal_bfin.S +++ b/libswscale/bfin/internal_bfin.S @@ -479,9 +479,6 @@ DEFUN(uyvytoyv12, mL3, (const uint8_t *src, uint8_t *ydst, uint8_t *udst, uint8 r1 = [fp + ARG_srcStride]; r2 = r0 + r1; - r1 += -8; // i0,i1 is pre read need to correct - m0 = r1; - i0 = r0; // uyvy_T even i1 = r2; // uyvy_B odd @@ -494,6 +491,12 @@ DEFUN(uyvytoyv12, mL3, (const uint8_t *src, uint8_t *ydst, uint8_t *udst, uint8 p4 = p4 >> 1; p5 = p5 >> 2; + r2 = r0 << 1; + r1 = r1 << 1; + r1 = r1 - r2; // srcStride + (srcStride - 2*width) + r1 += -8; // i0,i1 is pre read need to correct + m0 = r1; + r2 = [fp + ARG_chromStride]; r0 = r0 >> 1; r2 = r2 - r0; @@ -549,8 +552,6 @@ DEFUN(yuyvtoyv12, mL3, (const uint8_t *src, uint8_t *ydst, uint8_t *udst, uint8 r1 = [fp + ARG_srcStride]; r2 = r0 + r1; - r1 += -8; // i0,i1 is pre read need to correct - m0 = r1; i0 = r0; // uyvy_T even i1 = r2; // uyvy_B odd @@ -564,6 +565,12 @@ DEFUN(yuyvtoyv12, mL3, (const uint8_t *src, uint8_t *ydst, uint8_t *udst, uint8 p4 = p4 >> 1; p5 = p5 >> 2; + r2 = r0 << 1; + r1 = r1 << 1; + r1 = r1 - r2; // srcStride + (srcStride - 2*width) + r1 += -8; // i0,i1 is pre read need to correct + m0 = r1; + r2 = [fp + ARG_chromStride]; r0 = r0 >> 1; r2 = r2 - r0; |