C.Y.M 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. >> > > This theory sounds reasonable. Any idea on a way to fix it? The biggest > question is if it can be fixed from within VDR's source code or if it would > require an additional firmware/driver revision. I have given up hope on it. > The only way I know of that is reliable is using software decoding. > But, the biggest question is.. why does the ONLY happen when playing back recordings?? Best Regards.
