On 21.10.2006 15.58, "Oliver Endriss" <o.endriss@xxxxxx> wrote: > Udo Richter wrote: >> Tero Siironen wrote: >>> However, like Pasi Juppo told earlier in other thread, in last weeks episode >>> of Lost there was many fadeout-fadeins between scenes and a/v desync >>> happened on every one of these. >> >> I've 'heard of such problems' on ATV+ and Lost. Whenever there's a fade >> into black, the data stream seems to get stuck, frames get delayed, and >> as consequence A/V desyncs and playback gets jerky, with lots of audio >> and video frame drops. This can be fixed by pausing and jumping a few >> frames backwards. >> >> My theory is that since audio is typically 600ms ahead of video, maybe >> the audio buffers run over. Strange thing is why this happens >> reproducible on blackness. Maybe due to extremely low bit rate in this >> situation, more frames get packed into one data block, causing data flow >> to be disturbed beyond some limit. It cant be too high data rate, ATV+ >> has just 2mbit avg, 4mbit max data rate. > > Does it also occur with the latest test firmware? > http://www.suse.de/~werner/test_av-f22623.tar.bz2 > > If yes, please provide short sample clips. > Please verify that the clips are not damaged, i.e. they play fine with > mplayer or xine. > > Oliver Here is a 3 minute clip from the episode of Lost I told earlier. http://kotisivu.suomi.net/izero/lost.tar 80MB file and played ok at least with VLC v 0.8.5. and MPlayer on OS X -- Tero
