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Bug 154785 - Clock does not run if audio stream lacks data for a short while
Clock does not run if audio stream lacks data for a short while
Status: RESOLVED FIXED
Product: GStreamer
Classification: Platform
Component: gstreamer (core)
git master
Other Linux
: Normal normal
: 0.9.2
Assigned To: GStreamer Maintainers
GStreamer Maintainers
Depends on:
Blocks:
 
 
Reported: 2004-10-07 14:23 UTC by Alexander Larsson
Modified: 2005-08-25 23:58 UTC
See Also:
GNOME target: ---
GNOME version: ---


Description Alexander Larsson 2004-10-07 14:23:26 UTC 
I'm having some trouble playing a file with 0.99.17 using the gstreamer backend.
On my FC3 build, downloading and playing:
http://www.itcollege.ee/dl/OGG/avaloeng10_1.ogg

with alsasink:
Unable to get the video to start playing

with osssink:
Initially the video plays extremely slow, and no audio. If I seek a bit into the
stream it starts playing fine.
Comment 1 Alexander Larsson 2004-10-07 14:41:03 UTC 
http://www.itcollege.ee/dl/OGG/avaloeng10_2.ogg works well, so its something
about the first part of the file.
Comment 2 Ronald Bultje 2004-12-03 22:29:18 UTC 
Wim claims this file to be invalid, because the video and audio are muxed
inappropriately. I'm assuming that the file plays fine in other players?
Comment 3 Alexander Larsson 2004-12-06 23:03:59 UTC 
I haven't really tried it. It was linked from the vorbis home page, and i wanted
to try vorbis playback in totem.
Comment 4 Ronald Bultje 2005-06-08 12:36:46 UTC 
I had a closer look. The file indeed has a large, cruelly large, max-page-delay.
Totem-gst has a workaround for such files. You can set
/schemas/apps/totem/buffer-size to a value (float, in seconds) of the
buffersize. The default is 3; this file seems to start playing at 6. The direct
bug is fixed with that.

I'll keep the bug open to fix the deeper clocking issue: the clock does not run
if there is no data. This is not good...
Comment 5 Andy Wingo 2005-07-15 15:52:47 UTC 
1) the file has huge pages, time-wise
2) the beginning of it has digital silence. See oggzdump | grep granulepos, all
the 1-byte packets are digital silence.
3) there starts being audio when the stallman starts speaking.

The file is muxed correctly, thinks Mike Smith. Also oggz-validate does not
complain.

Totem with GStreamer 0.9 handles playback of this file correctly, without
fumbling around with GConf keys. Closing as fixed, yay! (Reopen if there is
still a problem.)