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  1. Qt
  2. QTBUG-127001

[gstreamer] seeking with pulseaudio broken

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Details

    • Bug
    • Resolution: Unresolved
    • P2: Important
    • None
    • 6.9
    • Multimedia

    Description

      steps to reproduce:

      • open player example
      • select file
      • play file

      behaviour:

      • the audio stream starts at the position of 2000ms instead of starting immediately
      • dragging the position slider can cause (a) the audio playback to stop and (b) the pipeline to hang (position is not updated). this typically happens a few seconds after the last position updates

      observations:

      • this only happens with pulsesink. alsasink does not show this behaviour, even when using the alsa's pulseaudio plugin to play via pulseaudio.

      sometimes gstreamer floods the terminal with skew correction messages

      0:00:37.217830652 32816 0x76cbb4001e30 WARN           audiobasesink gstaudiobasesink.c:1493:gst_audio_base_sink_skew_slaving:<audiosink> correct clock skew -36153:53:02.192799062 < -+0:00:00.020000000
0:00:37.217887812 32816 0x76cbb4001e30 WARN           audiobasesink gstaudiobasesink.c:1493:gst_audio_base_sink_skew_slaving:<audiosink> correct clock skew -36153:53:02.192799062 < -+0:00:00.020000000

      Attachments

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          duplicates

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-124372 After seeking using the GStreamer backend, the stream goes into a paused state.

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed
          is required for

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-126799 [gstreamer] playback rate / seeking unreliable

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed
          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-122423 [gstreamer] audio stops when switching rate

          • P3: Somewhat important - Should be fixed, but doesn't affect the release in any way.
          • Closed
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              timblechmann tim blechmann
              timblechmann tim blechmann
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              Dates

                Created:
                Updated:

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