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avcodec/cngdec: Remove AV_CODEC_CAP_DELAY

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As is the decoder will never stop, it will cause an infinite loop. The RFC seems only
to speak of non empty packets so endlessly generating noise from the last empty flush
packets seems wrong.

Fixes: infinite loop
Fixes: 18333/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_COMFORTNOISE_fuzzer-5668481831272448

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 327a968817)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2019-10-19 21:58:26 +02:00
parent e5baac772c
commit e2def5f382
1 changed files with 1 additions and 1 deletions
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2
libavcodec/cngdec.c
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@ -174,5 +174,5 @@ AVCodec ff_comfortnoise_decoder = {
.close = cng_decode_close,
.sample_fmts = (const enum AVSampleFormat[]){ AV_SAMPLE_FMT_S16,
AV_SAMPLE_FMT_NONE },
.capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_DR1,
.capabilities = AV_CODEC_CAP_DR1,
};