[gstreamer-bugs] [Bug 640859] basesink default drift-tolerance causes glitches on some clips
bugzilla at gnome.org
Mon Jan 31 12:00:33 PST 2011
GStreamer | gst-plugins-base | git
--- Comment #24 from Felipe Contreras <felipe.contreras at gmail.com> 2011-01-31 20:00:31 UTC ---
And here's another argument. Pick any mp3 file, convert it with GStreamer to
matroska vorbis or flac, and try this:
gst-launch-0.10 filesrc location=test.mka ! matroskademux ! flacdec ! pulsesink
You would hear glitches all the time, because basesink would do
resynchronization every buffer and apparently GStreamer timestamps have a
jitter of around 100us, while FFmpeg has 10ms.
Note that this is *not* drift, it's jitter, but basesink is wrongly detecting
it as drift, messing up all the playback.
With my patch now the playback would not be affected by jitter, you can even
set a drift-tolerance of 1, and clips with any jitter would play fine.
And streams with drift would also play fine, the re-sync would only be slightly
delayed but it would also be detected.
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