[Bug 758879] New: [pulsesink] Audio and Video sync is not matched when hearing through BT headset

GStreamer (GNOME Bugzilla) bugzilla at gnome.org
Mon Nov 30 16:50:53 PST 2015


https://bugzilla.gnome.org/show_bug.cgi?id=758879

            Bug ID: 758879
           Summary: [pulsesink] Audio and Video sync is not matched when
                    hearing through BT headset
    Classification: Platform
           Product: GStreamer
           Version: 1.4.5
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: gst-plugins-good
          Assignee: gstreamer-bugs at lists.freedesktop.org
          Reporter: galaxyra at gmail.com
        QA Contact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---

Hello. I'm Lee work at mobile company.(I'm working in audiofw)
Actually, we are using pulsesink for video-player.
I found out some strange bugs.

reproduce step
1. play video contents on the target.
2. connect bluetooth headset to the target.(audio is played through BT headset)
3. get away from the target.
4. pulseaudio willl face "Skipping" (because of bluetooth RF)
5. and then check video, audio and video sync is not matched.

I have been trying to figure out but i don't know why sync is not matched.
I think "gst_pulsesink_get_time" in gst_pulsesink_get_time doesn't consider
skipping data.

If you have good ideas, please leave you comments. 
thank you.

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