Hi David, 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 fine. > > 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. > http://launchpad.net/~diwic -- guanqun
