Hi On 2017-03-13 07:13:09, Luke Kenneth Casson Leighton wrote: > On Sun, Mar 12, 2017 at 7:01 PM, Sebastian Ramacher > <sramac...@debian.org> wrote: > > Control: tags -1 + moreinfo > > > > On 2017-03-12 13:31:24, lkcl wrote: > >> Package: i965-va-driver > >> Severity: important > >> Tags: upstream > >> > >> i'm getting a video stopping half-way through with the following errors > >> (reported under vlc): > > ... > >> [00007f16c0d62ff8] avcodec decoder: Using Intel i965 driver for Intel(R) > >> Skylake - 1.7.3 for hardware decoding. > >> [00007f16c0c01978] mkv demux error: Dummy Element at unexpected > >> position... corrupted file? > >> [00007f16c0c01978] mkv demux error: Dummy element too large or misplaced > >> at 770798513... skipping to next upper element > >> [00007f16c0c01978] mkv demux error: Dummy Element at unexpected > >> position... corrupted file? > >> [00007f16c0c01978] mkv demux error: Dummy element too large or misplaced > >> at 772666289... skipping to next upper element > >> [00007f16c0c01978] mkv demux error: Dummy Element at unexpected > >> position... corrupted file? > >> [00007f16c0c01978] mkv demux error: Dummy element too large or misplaced > >> at 774009777... skipping to next upper element > >> [00007f16c0c01978] mkv demux error: This element is outside its known > >> parent... upping level > >> [h264 @ 0x7f16c0c3f460] co located POCs unavailable > >> [h264 @ 0x7f16c0c30420] co located POCs unavailable > >> [h264 @ 0x7f16c0c3f460] co located POCs unavailable > >> [h264 @ 0x7f16c0c30420] co located POCs unavailable > >> [h264 @ 0x7f16c0c30420] co located POCs unavailable > > > > Or is that a problem with the file? > > yes... but it certainly shouldn't just bomb-out like that (it's not a > corrupted file from being downloaded, it's a correctly-downloaded > confirmed uncorrupted download)
Yes, but that still leaves the possibilites that the mkv files were created with a buggy muxer or vlc's mkv demuxer fails on them. Could you share the affected files? > > Does the issue happen with every file or only that one? > > on occasion, several files (not all), but it's repeatable and at the > exact same place if it occurs. so for example let's say that vlc > stops with the above error at 1m30s into the file, it's going to > happen *exactly* at that point *every* time *specifically* for that > file and that file only. > > > Does it happen with any > > other video player (or when disabling hardware acceleration)? > > hmmm good points, i'll find out. of course i'll have to set up hw > accel for other players... resource-hogging might make playback > difficult without hwaccel.... these are 720p files, quite > resource-intensive: just have to see how it goes. Please do. Cheers -- Sebastian Ramacher
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