[pulseaudio-discuss] how's fighting rewind going?
guanqun.lu at intel.com
Fri Jun 17 00:13:42 PDT 2011
On Fri, Jun 17, 2011 at 02:31:41PM +0800, David Henningsson wrote:
> On 2011-06-17 02:21, Lu Guanqun wrote:
> > Hi David,
> > How's your fighting rewind going?
> > Now, I find there's a rewind flood in my environment, and it's doing a
> > rewrite rewind all the times. At the time of rewinding, the write index
> > is less than the read index.
> > Do you have any idea what's going on? I'm only seeing this when I'm
> > viewing an 1080p MP4 file.
> > Thanks!
> Hi Lu,
> My patches has been optimisations so far, which means that it's reducing
> the amount of rewinds rather than eliminating them. With a slow enough
> computer (for Intel, the Atom comes to mind), or lots of other things to
> do for that computer (such as viewing an 1080p file?), the rewind flood
> thing can still happen.
Oh, man, you totally got me. :) I'm playing 1080p on an Atom based machine.
I find the rewind flood on this platform. For 480p video, it works quite
> What client are you using to connect to PulseAudio? For gstreamer based
> clients, my gstreamer patch was first applied upstream, then reverted
> for reasons I don't fully understand. Applying it is likely to help
> against rewinds. See bug https://bugzilla.gnome.org/show_bug.cgi?id=641072
Yes, I used gstreamer clients. FYI. The two patches on pulesaudio are
already applied. However, no matter when I applied the gstreamer patch,
the rewind flood still can be seen.
As you said, you're doing optimizations. Is there a way to fully solve
this issue, or this is just a mission impossible per your understanding?
> David Henningsson, Canonical Ltd.
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