[FFmpeg-cvslog] sws: Fix chroma init for 32bit buffers.

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Sun Jul 10 15:58:24 2011 +0200| [29fb1b5a06752d2baf10dd363ece1f1b3c964833] | committer: Michael Niedermayer

sws: Fix chroma init for 32bit buffers.

Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=29fb1b5a06752d2baf10dd363ece1f1b3c964833
---

 libswscale/utils.c |   10 ++++++++--
 1 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/libswscale/utils.c b/libswscale/utils.c
index 00bd89f..9d373cc 100644
--- a/libswscale/utils.c
+++ b/libswscale/utils.c
@@ -778,7 +778,7 @@ SwsContext *sws_alloc_context(void)
 
 int sws_init_context(SwsContext *c, SwsFilter *srcFilter, SwsFilter *dstFilter)
 {
-    int i;
+    int i, j;
     int usesVFilter, usesHFilter;
     int unscaled;
     SwsFilter dummyFilter= {NULL, NULL, NULL, NULL};
@@ -1062,7 +1062,13 @@ int sws_init_context(SwsContext *c, SwsFilter *srcFilter, SwsFilter *dstFilter)
 
     //try to avoid drawing green stuff between the right end and the stride end
     for (i=0; i<c->vChrBufSize; i++)
-        memset(c->chrUPixBuf[i], 64, dst_stride*2+1);
+        if(av_pix_fmt_descriptors[c->dstFormat].comp[0].depth_minus1 == 15){
+            av_assert0(c->scalingBpp == 16);
+            for(j=0; j<dst_stride/2+1; j++)
+                ((int32_t*)(c->chrUPixBuf[i]))[j] = 1<<18;
+        } else
+            for(j=0; j<dst_stride+1; j++)
+                ((int16_t*)(c->chrUPixBuf[i]))[j] = 1<<14;
 
     assert(c->chrDstH <= dstH);