On Fri, Oct 02, 2015 at 11:04:10PM +0200, Hendrik Leppkes wrote: > On Fri, Oct 2, 2015 at 9:49 PM, wm4 <nfx...@googlemail.com> wrote: > > On Fri, 2 Oct 2015 21:41:59 +0200 > > Michael Niedermayer <michae...@gmx.at> wrote: > > > >> On Fri, Oct 02, 2015 at 09:23:04PM +0200, wm4 wrote: > >> > On Fri, 2 Oct 2015 21:14:57 +0200 > >> > Michael Niedermayer <michae...@gmx.at> wrote: > >> > > >> > > From: Michael Niedermayer <mich...@niedermayer.cc> > >> > > > >> > > Fixes: https://trac.ffmpeg.org/attachment/ticket/685/movie.264 > >> > > > >> > > In the available testcase the actual PPS only uses a few bits > >> > > while there are 7kbyte of apparently random data after it > >> > > > >> > > Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > >> > > --- > >> > > libavcodec/h264_ps.c | 4 ++-- > >> > > 1 file changed, 2 insertions(+), 2 deletions(-) > >> > > > >> > > diff --git a/libavcodec/h264_ps.c b/libavcodec/h264_ps.c > >> > > index fd16a95..0dca5f0 100644 > >> > > --- a/libavcodec/h264_ps.c > >> > > +++ b/libavcodec/h264_ps.c > >> > > @@ -611,8 +611,8 @@ int > >> > > ff_h264_decode_picture_parameter_set(H264Context *h, int bit_length) > >> > > return AVERROR(ENOMEM); > >> > > pps->data_size = h->gb.buffer_end - h->gb.buffer; > >> > > if (pps->data_size > sizeof(pps->data)) { > >> > > - ret = AVERROR_INVALIDDATA; > >> > > - goto fail; > >> > > + av_log(h->avctx, AV_LOG_WARNING, "Truncating likely oversized > >> > > PPS\n"); > >> > > + pps->data_size = sizeof(pps->data); > >> > > } > >> > > memcpy(pps->data, h->gb.buffer, pps->data_size); > >> > > pps->sps_id = get_ue_golomb_31(&h->gb); > >> > > >> > That was quick. > >> > > >> > >> > Should the same be done for SPS? > >> > >> i dont know > >> > > > > I'd say it would be good for symmetry. > > > > Its a new error condition which wouldn't affect 99% of all users, so > its probably best to switch it to a warning as well and hope for the > best.
ok, switched the 2nd and applied thanks [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB Old school: Use the lowest level language in which you can solve the problem conveniently. New school: Use the highest level language in which the latest supercomputer can solve the problem without the user falling asleep waiting.
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