When converting RGB format to RGB format with the same bits per sample,
unscaled path performs conversion on the whole buffer at once. For
non-multiple-of-16 BGR24 to RGB24 conversion it means that padding at the
end of line will be converted too. Since it may be of arbitrary length
(e.g. 8 bytes), operating on the whole buffer produces obviously wrong
results.
---
libswscale/swscale_unscaled.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/libswscale/swscale_unscaled.c b/libswscale/swscale_unscaled.c
index 59f31c6..c0161c2 100644
--- a/libswscale/swscale_unscaled.c
+++ b/libswscale/swscale_unscaled.c
@@ -382,7 +382,7 @@ static int rgbToRgbWrapper(SwsContext *c, const uint8_t*
src[], int srcStride[],
if ((dstFormat == PIX_FMT_RGB32_1 || dstFormat == PIX_FMT_BGR32_1) &&
!isRGBA32(srcFormat))
dstPtr += ALT32_CORR;
- if (dstStride[0]*srcBpp == srcStride[0]*dstBpp && srcStride[0] > 0)
+ if (dstStride[0]*srcBpp == srcStride[0]*dstBpp && srcStride[0] > 0 &&
!(srcStride[0] % srcBpp))
conv(srcPtr, dstPtr + dstStride[0]*srcSliceY,
srcSliceH*srcStride[0]);
else {
int i;
--
1.7.0.4
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