On Mon, Aug 13, 2018 at 08:11:52PM +0200, Carl Eugen Hoyos wrote: > 2018-08-13 2:24 GMT+02:00, Michael Niedermayer <mich...@niedermayer.cc>: > > Fixes: Timeout > > Fixes: > > 9484/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_LAGARITH_fuzzer-5707859156271104 > > > > Found-by: continuous fuzzing process > > https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > > Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > > --- > > libavcodec/lagarith.c | 8 +++++++- > > 1 file changed, 7 insertions(+), 1 deletion(-) > > > > diff --git a/libavcodec/lagarith.c b/libavcodec/lagarith.c > > index 510a6ff2d6..b9a0649c31 100644 > > --- a/libavcodec/lagarith.c > > +++ b/libavcodec/lagarith.c > > @@ -572,8 +572,14 @@ static int lag_decode_frame(AVCodecContext *avctx, > > > > dst = p->data[0]; > > if (frametype == FRAME_SOLID_RGBA) { > > + int w2 = avctx->width>>2; > > qwidth? w2 is hard to read imo.
changed
>
> > + uint64_t c = ((uint64_t)offset_gu << 32) | offset_gu;
> > for (j = 0; j < avctx->height; j++) {
> > - for (i = 0; i < avctx->width; i++)
> > + for (i = 0; i < w2; i++) {
> > + AV_WN64(dst + i * 16 , c);
> > + AV_WN64(dst + i * 16 + 8, c);
> > + }
> > + for (i = 4*w2; i < avctx->width; i++)
>
> And please add (very) rough numbers to the commit message.
will apply with benchmark details
thx
[...]
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