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Bug 79468 - MKV playback halts Impress
Summary: MKV playback halts Impress
Status: RESOLVED WORKSFORME
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: Impress (show other bugs)
Version:
(earliest affected)
4.0.6.2 release
Hardware: Other Linux (All)
: high critical
Assignee: Not Assigned
URL:
Whiteboard:
Keywords:
Depends on:
Blocks: Media-Playback
  Show dependency treegraph
 
Reported: 2014-05-31 02:39 UTC by Yousuf Philips (jay) (retired)
Modified: 2017-10-07 11:50 UTC (History)
2 users (show)

See Also:
Crash report or crash signature:


Attachments
packages i installed on xubuntu 14.04 to get things running (6.07 KB, text/plain)
2014-05-31 17:33 UTC, Yousuf Philips (jay) (retired)
Details
packages installed with the ubuntu-restricted-extras packages from Ubuntu 14.04 software center (6.83 KB, text/plain)
2014-06-03 14:18 UTC, Yousuf Philips (jay) (retired)
Details

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Description Yousuf Philips (jay) (retired) 2014-05-31 02:39:58 UTC
As i was testing various media files in impress for bug 56847, i noticed that if i put an MKV file into impress and press play, it runs. But if i then press stop, and then play again, LibO will halt. Pressing pause and then play is fine though. Another means of halting is while it initially plays, seek to another position.

When it crashes the following is outputted in the commandline:

"(soffice:3527): GStreamer-WARNING **: wrong STREAM_LOCK count 0"

Tested on Linux Mint and it effects the latest releases of 4.0 to 4.2 and 4.3 beta.
Comment 1 retired 2014-05-31 06:58:47 UTC
On OSX 10.9.3 I get a message "not supported" when trying to add any mkv file to LO Impress.
Comment 2 Yousuf Philips (jay) (retired) 2014-05-31 12:08:10 UTC
I think OSX uses a different backend for processing videos.
Comment 3 Yousuf Philips (jay) (retired) 2014-05-31 15:35:36 UTC
Was testing this on Xubuntu 14.04 and if you dont have xubuntu-restricted-extras, and lav-tools installed, you wont be able to playback video.

On Linux Mint 17, video playback wont work until you install libreoffice-avmedia-backend-gstreamer. MKVs didnt halt here, so
Comment 4 Yousuf Philips (jay) (retired) 2014-05-31 15:54:04 UTC
Was testing this on Xubuntu 14.04 and if you dont have xubuntu-restricted-extras and lav-tools installed, you wont be able to playback video. MKVs worked fine here.

On Linux Mint 17, video playback wont work until you install libreoffice-avmedia-backend-gstreamer. MKVs worked here as well.

So i'm assuming the issue boils down to the library's capabilities. For Linux Mint the library versions were:
gstreamer0.10-ffmpeg: 0.10.13-5
libav-tools: 9.13-0

Looking at the Linux Mint installation that i used for this bug, it has these versions:
gstreamer0.10-ffmpeg: 0.10.13-1
libav-tools: 0.8.10
Comment 5 Yousuf Philips (jay) (retired) 2014-05-31 17:33:15 UTC
Created attachment 100210 [details]
packages i installed on xubuntu 14.04 to get things running
Comment 6 Yousuf Philips (jay) (retired) 2014-05-31 17:38:26 UTC
With Linux Mint 17, i had to installed libreoffice-avmedia-backend-gstreamer, gstreamer 0.10's ffmpeg and fluendo mp3 packages to get things running. Not sure if the gstreamer packages were needed though.
Comment 7 retired 2014-05-31 19:18:01 UTC
setting to NEW as something is off.

@devs: let us know if you want a separate issue for the problem of LO in OSX not allowing import of MKV files.

Setting to new, as jmadero was unable to get this done in ubuntu as well. Now it'S for the devs how to deal with this: either tell the user why things are failing and provide a solution via wiki or bundle stuff into LO. That is far above my competence to decide ;)
Comment 8 Yousuf Philips (jay) (retired) 2014-06-03 14:18:47 UTC
Created attachment 100361 [details]
packages installed with the ubuntu-restricted-extras packages from Ubuntu 14.04 software center

@Foss this bug tracker is only for the linux issue, so no need to discuss the problems with OSX here as OSX doesnt use the gstreamer backend.

Did extensive testing of all video formats on a clean installation of Ubuntu 14.04 with the only installation being the ubuntu-restricted-extras package from the software center. This was done by converting a video file to all these formats in mainly QWinFF and a few in Curlew (mp4a, ogv).

Audio
 AC3 - supported
 AU/AIFF - supported, playback after seeking resets it to the beginning
 FLAC - supported
 M4A - supported
 MP3 - supported
 OGG - supported
 WAV - supported
 WMA - supported
 ----
 LibO doesnt list .ac3 or .m4a as possible audio extensions

Video
 ASF [MP43/MP2] - supported
 AVI [MP43/MP3] - supported
 DV [DV/PCM] - supported
 FLV [FLV1/SWFa] - supported
 MKV [AVC/AAC] - supported
 MOV [MP4V/AAC] - supported
 MP2 [MPG2/MP2] - supported
 MP4 [MP4V/AAC] - supported
 MPG [MPG1/MPG2] - supported, but some arent supported *
 OGV [Theora/FLAC] - supported
 RM [RealVideo1/AC-3] - displayed first frame, cant play, cant seek
 WEBM [VP8/Vorbis] - supported
 WMV [WMV2/WMA2] - supported
 -----
 LibO didnt list asf, dv, or rm as possible formats

* < https://archive.org/download/test-mpeg/test-mpeg.mpg >

I noticed that adding media to impress would normally halt LibO for ~20s when the ubuntu-restricted-extras package wasnt installed, and after its installation, media would halt LibO for 30 to 60 second depending on the file size. This is weird as it only takes 6 - 9 seconds on the same machine using xubuntu 14.04.
Comment 9 Yousuf Philips (jay) (retired) 2014-06-03 15:16:39 UTC
Okay after more testing i see that installing libav-tools is needed as it will reduce the load time of the videos to the same < 10s, but there is still a problem with audio files which still take about a minute to load. Not sure what is causing this when i compared the packages against my linux mint box, which loads audio files in 1 to 11 seconds depending on their size.
Comment 10 Björn Michaelsen 2014-08-21 12:21:09 UTC Comment hidden (obsolete)