On Wed, 7 Nov 2001, Justin Schoeman wrote: > > Could I ask you to give NVrec a try, using the FFMPEGrec front-end. I > haven't had much feedback yet on audio synch for this frontend... > I have the 20011101 version; I'm using it into bttv 0.8.28's v4l2 interface with btaudio. Some minor changes were needed on both sides to get them to play - so I suppose that this is a combination others haven't tried. (I will send the patches, but read on) I haven't done thorough tests - and will try to this weekend. But my first impression is that sync isn't as "sorted" as I expected. And certainly more problems with btaudio. One thing I notice is that the "Warp" sits at 0 when capturing from the SBLive, and cycle 37 -1 -17 -23 with the btaudio. Perhaps this is a problem with my GETISPACE patch for btaudio, perhaps its normal and to do with how btaudio packetizes. But I'd prefer to investigate properly. A question - how can I be sure that sync issues are at capture and not an mplayer playback problem...? The other thing I don't understand about ffmpeg is: why does sync go way out when I use ffmpeg to process existing mpeg1 files that I captured with mp1e? Is this about some incompatibility with PTS info? Perhaps ffmpeg ignores that? Steve
