ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Sat Aug 4 02:31:58 2018 +0200| [82920bf49434d14ed0144319f785cc74a1534fc5] | committer: Michael Niedermayer
avcodec/ivi: Only clip samples when needed in ivi_output_plane() 435740 -> 396078 dezicycles Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=82920bf49434d14ed0144319f785cc74a1534fc5 --- libavcodec/ivi.c | 11 +++++++++-- 1 file 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; } _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
