Discussion:
[Bug 778812] New: GAP events don't unblock a pipeline
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"GStreamer" (GNOME Bugzilla)
2017-02-17 09:05:51 UTC
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https://bugzilla.gnome.org/show_bug.cgi?id=778812

Bug ID: 778812
Summary: GAP events don't unblock a pipeline
Classification: Platform
Product: GStreamer
Version: 1.8.3
OS: Linux
Status: NEW
Severity: normal
Priority: Normal
Component: gstreamer (core)
Assignee: gstreamer-***@lists.freedesktop.org
Reporter: ***@gmail.com
QA Contact: gstreamer-***@lists.freedesktop.org
GNOME version: ---

Created attachment 346044
--> https://bugzilla.gnome.org/attachment.cgi?id=346044&action=edit
Pygi script to mux live kate subtitle stream into ogg

Live subtitles are generated in appsrc and passed to oggmux along with an audio
from audiotestsrc.

File stays empty.

I expect it to be filling with audio.

The appsrc in the example script generates GAP event at its need-data handler.
Logs show that oggmux gets it, but all threads remain blocked. Also tried:
queues everywhere, GAP buffers instead of events, sending some real text
buffers and then GAPs (it locks up when I stop generating buffers).

Note: there is a large probability that I'm doing something wrong.
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