Trivial change, LGTM On 10/28/19, Michael Niedermayer <mich...@niedermayer.cc> wrote: > Fixes: left shift of negative value -1 > Fixes: > 18397/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ADPCM_DTK_fuzzer-5675653487132672 > > Found-by: continuous fuzzing process > https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > --- > libavcodec/adpcm.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/libavcodec/adpcm.c b/libavcodec/adpcm.c > index a8e74522b3..53d8d0be6a 100644 > --- a/libavcodec/adpcm.c > +++ b/libavcodec/adpcm.c > @@ -1723,7 +1723,7 @@ static int adpcm_decode_frame(AVCodecContext *avctx, > void *data, > else > sampledat = sign_extend(byte >> 4, 4); > > - sampledat = (((sampledat << 12) >> (header & 0xf)) << > 6) + prev; > + sampledat = ((sampledat * (1 << 12)) >> (header & 0xf)) > * (1 << 6) + prev; > *samples++ = av_clip_int16(sampledat >> 6); > c->status[channel].sample2 = > c->status[channel].sample1; > c->status[channel].sample1 = sampledat; > -- > 2.23.0 > > _______________________________________________ > ffmpeg-devel mailing list > ffmpeg-devel@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel > > To unsubscribe, visit link above, or email > ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe". _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
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