I stand corrected, the tuner input also suffers from drift. I checked it around 26 hours of continuous use and there was a material drift between the audio and the video, similar to what was seen on the AV inputs. The audio is getting ahead of the video.
I sent the debug=3 log entries under a different thread, nothing too strange appeared there. Is AV_LOCK still enabled in the driver? -Jeff On Fri, Nov 28, 2008 at 3:47 PM, Jeff Campbell <[EMAIL PROTECTED]> wrote: > Hi Andy, Hans, > > We're still hunting down the audio issues we raised a while back. While we > thought we had it beat, we have discovered through testing that over a > period of a few days we end up with audio drift (the audio appears to get > ahead of a the video slightly). Given this, we're still investigating > itwhich is why we haven't reported back. > > We are also actively switching between different inputs (Tuner, SVideo, > Composite), as well as between NTSC and PAL input sources. We have no yet > successfully encoded a PAL signal from a PAL DVD player. Is there any known > issue with PAL mode? Does anyone have that working with the latest mainline > (1.0.3) driver? > > A few other observations: > > The tuner audio does not appear to drift, although I am checking that this > weekend (leaving it running for 48 hours straight). > > Switching from NTSC to PAL format and back for the AV inputs appears to > result in an unusualble system and requires a reboot. > > The transport stream of the tuner feed appears to work properly (no popping > audio or issues), whereas the TS of the AV inputs exhibits audio problems. > If we apply the changes we shared two weeks ago, the audio problem on the AV > inputs goes away but we eventually see the drift where the audio gets ahead > of the video. > > Andy, out of curiosity, is your primary testing againt tuner input or do > you often use the AV inputs as well? > > We are just at the beginning of digging through the data sheet on the > cx25840 to start to understand the different pathways and how the AV lock > differs between the tuner input and the other inputs and will share any > findings or questions. > > I have a wide range of input types I can test against so if there is > anything you want me to try out and report back on, please let me know. > > -Jeff > >
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