[FFmpeg-devel] [PATCH] avcodec/qtrle: Do not output duplicated frames on insufficient input

Michael Niedermayer michael at niedermayer.cc
Wed May 30 02:30:48 EEST 2018


On Sun, May 27, 2018 at 09:59:58PM +0200, Michael Niedermayer wrote:
> This improves performance and makes qtrle behave more similar to other decoders.
> Libavcodec does generally not output known duplicated frames, instead the calling Application
> can insert them as it needs.
> 
> Fixes: Timeout
> Fixes: 6383/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_QTRLE_fuzzer-6199846902956032
> 
> Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
> Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
> ---
>  libavcodec/qtrle.c        |  12 ++---
>  tests/ref/fate/qtrle-8bit | 109 --------------------------------------
>  2 files changed, 6 insertions(+), 115 deletions(-)

will apply

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

The worst form of inequality is to try to make unequal things equal.
-- Aristotle
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