On Fri, 8 Sep 2017 at 22:29 Michael Niedermayer <mich...@niedermayer.cc> wrote:
> Speeds code up from 50sec to 15sec > > Fixes Timeout > Fixes: 3242/clusterfuzz-testcase-5811951672229888 > > Found-by: continuous fuzzing process > https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > Signed-off-by > <https://github.com/google/oss-fuzz/tree/master/projects/ffmpegSigned-off-by>: > Michael Niedermayer <mich...@niedermayer.cc> > --- > libavcodec/scpr.c | 11 ++++++++++- > 1 file changed, 10 insertions(+), 1 deletion(-) > > diff --git a/libavcodec/scpr.c b/libavcodec/scpr.c > index 37fbe7a106..2ef63a7bf8 100644 > --- a/libavcodec/scpr.c > +++ b/libavcodec/scpr.c > @@ -827,7 +827,16 @@ static int decode_frame(AVCodecContext *avctx, void > *data, int *got_frame, > return ret; > > for (y = 0; y < avctx->height; y++) { > - for (x = 0; x < avctx->width * 4; x++) { > + if (!(((uintptr_t)dst) & 7)) { > + uint64_t *dst64 = (uint64_t *)dst; > + int w = avctx->width>>1; > + for (x = 0; x < w; x++) { > + dst64[x] = (dst64[x] << 3) & 0xFCFCFCFCFCFCFCFCULL; > + } > + x *= 8; > + } else > + x = 0; > + for (; x < avctx->width * 4; x++) { > dst[x] = dst[x] << 3; > } > dst += frame->linesize[0]; > -- > 2.14.1 > This is as clear as mud. _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
