On Wed, Nov 29, 2017 at 11:57:17AM -0800, Dale Curtis wrote: > On Tue, Nov 28, 2017 at 4:32 PM, Michael Niedermayer <mich...@niedermayer.cc > > wrote: > > > > > > This breaks converting of this: > > ./ffmpeg -i bgc.sub.dub.ogm -vf subtitles=bgc.sub.dub.ogm -an file.avi > > > > https://samples.ffmpeg.org/ogg/bgc.sub.dub.ogm > > > > > That's due to the vorbis parser returning AVERROR_INVALIDDATA here, with > pkt_type == 5 and priv->packet[0] == priv_packet[1] == null. > http://git.videolan.org/?p=ffmpeg.git;a=blob;f=libavformat/oggparsevorbis.c;h=65b1998a02d92d0fcaeb740d8f4523641502dbea;hb=HEAD#l319 > > > Which were added in 2010 here: > http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=73c44cb2869bfdbea829942eb35efa6d4c4e2f91 > > It seems that file has invalid vorbis streams if the check is to be > believed. What do you want to do here? Restrict this error behind > AV_EF_EXPLODE?
AV_EF_EXPLODE appears to be a possibility, yes in general demuxers should try to extract as much as possible from a file and not give up if some broken packet is found [...] -- 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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