diff options
| -rw-r--r-- | libavcodec/ivi.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/libavcodec/ivi.c b/libavcodec/ivi.c index cea40d82ca..ebb7f03007 100644 --- a/libavcodec/ivi.c +++ b/libavcodec/ivi.c @@ -913,8 +913,15 @@ static void ivi_output_plane(IVIPlaneDesc *plane, uint8_t *dst, ptrdiff_t dst_pi return; for (y = 0; y < plane->height; y++) { - for (x = 0; x < plane->width; x++) - dst[x] = av_clip_uint8(src[x] + 128); + int m = 0; + for (x = 0; x < plane->width; x++) { + int t = src[x] + 128; + dst[x] = t; + m |= t; + } + if (m & ~255) + for (x = 0; x < plane->width; x++) + dst[x] = av_clip_uint8(src[x] + 128); src += pitch; dst += dst_pitch; } |