Hi, On Wed, Dec 6, 2023 at 3:23 AM Marton Balint <c...@passwd.hu> wrote:
> Signed-off-by: Marton Balint <c...@passwd.hu> > --- > doc/APIchanges | 3 +++ > doc/codecs.texi | 14 ++++++++++++++ > libavcodec/avcodec.h | 4 ++++ > libavcodec/decode.c | 6 ++++++ > libavcodec/options_table.h | 1 + > libavcodec/version.h | 2 +- > 6 files changed, 29 insertions(+), 1 deletion(-) > > diff --git a/doc/APIchanges b/doc/APIchanges > index 416e2bec5e..f839504a64 100644 > --- a/doc/APIchanges > +++ b/doc/APIchanges > @@ -2,6 +2,9 @@ The last version increases of all libraries were on > 2023-02-09 > > API changes, most recent first: > > +2023-12-xx - xxxxxxxxxxx - lavc 60.36.100 - avcodec.h > + Add AV_CODEC_FLAG_CLEAR. > + > 2023-12-xx - xxxxxxxxxxx - lavu 58.33.100 - imgutils.h > Add av_image_fill_color() > > diff --git a/doc/codecs.texi b/doc/codecs.texi > index 5b950b4560..0504a535f2 100644 > --- a/doc/codecs.texi > +++ b/doc/codecs.texi > @@ -76,6 +76,20 @@ Apply interlaced motion estimation. > Use closed gop. > @item output_corrupt > Output even potentially corrupted frames. > +@item clear > +Clear the contents of the video buffer before decoding the next picture > to it. > + > +Usually if only a part of a picture is affected by a decode error then the > +decoder (if it implements error concealment) tries to hide it by > interpolating > +pixels from neighbouring areas or in some cases from the previous frame. > Even > +without error concealment it is quite likely that the affected area will > +contain pixels from an earlier frame, due to frame pooling. > No comment on the patch itself, but wouldn't our users (and the C standard itself) consider it a security issue to return stale (or worse: uninitialized) data while pretending that it's safe to access? I thought touching uninitialized data was UB. Ronald _______________________________________________ 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".