[gstreamer-bugs] [Bug 505463] New: Gstreamer streaming buffer too small for large videos

[GStreamer (bugzilla.gnome.org)]

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  GStreamer | don't know | Ver: 0.10.14
           Summary: Gstreamer streaming buffer too small for large videos
           Product: GStreamer
           Version: 0.10.14
          Platform: Other
        OS/Version: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: don't know
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: dnas.dnas at gmail.com
         QAContact: gstreamer-bugs at lists.sourceforge.net
     GNOME version: 2.19/2.20
   GNOME milestone: Unspecified


Please describe the problem:
Gstreamer should have more accurate heuristics on how much to buffer when
streaming video. The current setup works extremely poorly for large videos.

Steps to reproduce:
1. Go to http://www.apple.com/trailers/
2. Pick a trailer available in HD. (For example, WALL-E).
3. Select the highest size available (1080p)
4. Watch video


Actual results:
Every 5-20 seconds, play stops to fill the buffer again. This is annoying and
makes the video more-or-less unwatchable.

Expected results:
After buffering some initial amount, the video plays with little or no stops
for further buffering.

Does this happen every time?
Yes.

Other information:
(I have the totem-mozilla plugin, as packaged by Ubuntu Gutsy Gibbon. I assume
that is needed to get the video to launch nicely.)

Perhaps gstreamer should take into account the current average download speed
(a moving average?) and how much data is needed for one second of playback, and
use that to calculate the needed buffer size.


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