GNOME Bugzilla – Bug 343962
[matroska] can't generate thumbnails of some mkv files
Last modified: 2011-05-17 08:11:29 UTC
Please describe the problem: when open folder with nautilus, video files are presented with thumbnail. but can't generate thumbnails of some mkv files Steps to reproduce: 1. open folder contains mkv files 2. 3. Actual results: show mkv files with unknown file icon Expected results: show mkv files with thumbnail Does this happen every time? no, but many time. Other information: When run totem-video-thumbnailer in command line, that prints like this. $ totem-video-thumbnailer "Fate／Stay Night 05.mkv" test.png totem-video-thumbnailer couln't thumbnail file: 'Fate／Stay Night 05.mkv' Reason: Took too much time to thumbnail. It seems that takes long time to seek frame. In totem player, plays properly, but seek function takes long time too.
Does seeking work at all in those files though in totem? Could you run $ export GST_DEBUG=totem:5,matroskademux:5 $ totem-video-thumbnailer "Fate／Stay Night 05.mkv" test.png 2> dbg.log $ gzip dbg.log and attach the log to this bug report? (or even better: make one or more of the files available somewhere in their entirety, if they are not too large)
Created attachment 67343 [details] totem-video-thumbnailer log
File sizes are too big to upload public url. (about 200-250MB) Do you have any idea how do you take them?
(I tried e-mailing you, but your mail host thinks my mails are spam) > Do you have any idea how do you take them? Maybe you could point me to the source? No idea what's going on here from the log, it's all a bit weird. The index for example seems to have multiple entries at the same byte position for the same stream but with different time offsets, and where it should seek to ca ~8 minutes it actually seeks to ~4 minutes something (while seeking to the byte position claimed to be around 8mins in the index). But despite all that it should still output something. Would be easier to debug with the file in hand.
Please contact me by e-mail, it is difficult to guess the problem withou the file. It seems that the decoder can not decode the file or the pipeline is not correctly linked. In any case, it would be good to see the output from decoder too, try with export GST_DEBUG=totem:5,matroskademux:5,ffmpeg:5
Is this still an issue.
Closing this bug report as no further information has been provided. Please feel free to reopen this bug if you can provide the information asked for. Thanks!