[Bug 797345] New: wasapisrc - does not drain devices of buffers when reading leading to dropped audio
GStreamer (GNOME Bugzilla)
bugzilla at gnome.org
Sat Oct 27 16:10:48 UTC 2018
https://bugzilla.gnome.org/show_bug.cgi?id=797345
Bug ID: 797345
Summary: wasapisrc - does not drain devices of buffers when
reading leading to dropped audio
Classification: Platform
Product: GStreamer
Version: git master
OS: Windows
Status: NEW
Severity: normal
Priority: Normal
Component: gst-plugins-bad
Assignee: gstreamer-bugs at lists.freedesktop.org
Reporter: Florian.P.Nierhaus at gmail.com
QA Contact: gstreamer-bugs at lists.freedesktop.org
GNOME version: ---
Created attachment 374068
--> https://bugzilla.gnome.org/attachment.cgi?id=374068&action=edit
patch for wasapi against master
There are a few issues with the buffer handling:
* we sometimes get notified when smaller number of frames are provided by the
driver - in this case we need to buffer and wait so gstreamer gets the expected
size
* we sometimes get multiple buffers with one notification and we need to save
that and return that the next cycle as to not have audio gaps -
https://blogs.msdn.microsoft.com/matthew_van_eerde/2014/11/05/draining-the-wasapi-capture-buffer-fully/
* not clearing the audio buffer on some devices on the notification / partial
sizes confuses some devices
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