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Bug 617855 - [oggdemux] Fails to play LAC2010 videos
[oggdemux] Fails to play LAC2010 videos
Status: RESOLVED FIXED
Product: GStreamer
Classification: Platform
Component: gst-plugins-base
git master
Other Linux
: Normal blocker
: 0.10.30
Assigned To: GStreamer Maintainers
GStreamer Maintainers
Depends on:
Blocks:
 
 
Reported: 2010-05-06 05:53 UTC by Sebastian Dröge (slomo)
Modified: 2010-05-06 10:58 UTC
See Also:
GNOME target: ---
GNOME version: ---


Description Sebastian Dröge (slomo) 2010-05-06 05:53:09 UTC 
Playing the LAC2010 videos with latest GIT results in an error while it works with latest release. This happens over http and locally.

http://lac.linuxaudio.org/2010/recordings/

$ totem day1_1630_Writing_Audio_Applications_Using_GStreamer.ogv 
0:00:01.021570116 25904      0x12aa100 ERROR                  totem bacon-video-widget-gst-0.10.c:392:bvw_error_msg: message = Could not decode stream.
0:00:01.021729984 25904      0x12aa100 ERROR                  totem bacon-video-widget-gst-0.10.c:394:bvw_error_msg: domain  = 3595 (gst-stream-error-quark)
0:00:01.021761971 25904      0x12aa100 ERROR                  totem bacon-video-widget-gst-0.10.c:395:bvw_error_msg: code    = 7
0:00:01.021787323 25904      0x12aa100 ERROR                  totem bacon-video-widget-gst-0.10.c:396:bvw_error_msg: debug   = gsttheoradec.c(1147): theora_handle_data_packet (): /GstPlayBin2:play/GstURIDecodeBin:uridecodebin0/GstDecodeBin2:decodebin20/GstTheoraDec:theoradec0:
no header sent yet
0:00:01.021806669 25904      0x12aa100 ERROR                  totem bacon-video-widget-gst-0.10.c:397:bvw_error_msg: source  = <theoradec0>
0:00:01.021835584 25904      0x12aa100 ERROR                  totem bacon-video-widget-gst-0.10.c:398:bvw_error_msg: uri     = file:///home/slomo/projects/gstreamer/head/samples/day1_1630_Writing_Audio_Applications_Using_GStreamer.ogv
** Message: Error: Could not decode stream.
gsttheoradec.c(1147): theora_handle_data_packet (): /GstPlayBin2:play/GstURIDecodeBin:uridecodebin0/GstDecodeBin2:decodebin20/GstTheoraDec:theoradec0:
Comment 1 Sebastian Dröge (slomo) 2010-05-06 08:03:13 UTC 
Problem is, that only the 0x80 header packet is pushed and the 0x81, 0x82 header packets disappear somewhere in oggdemux. theoradec needs them both though.
Comment 2 Sebastian Dröge (slomo) 2010-05-06 10:58:25 UTC 
This is fixed by one of the following commits:


commit e33425e4d0697a88138c361aadd2cb6162678a67
Author: Wim Taymans <wim.taymans@collabora.co.uk>
Date:   Thu May 6 12:21:38 2010 +0200

    oggdemux: ignore the skeleton start time
    
    Ignore the skeleton start time as it is usually wrong for live streams
    and we have the needed logic to calculate it anyway.

commit 27de725038a3734ab48e20439059455917f1054d
Author: Wim Taymans <wim.taymans@collabora.co.uk>
Date:   Thu May 6 12:06:09 2010 +0200

    oggdemux: wait for headers before exposing chains
    
    Wait until we have all the stream headers before we start exposing the strea
    of a chain.