[mythtv-users] MythVideo DVD playback fault tolerance

[Chris Jewell]

Hi All,

I'm having a problem with Mythvideo DVD playback in MythTV 0.24. Essentially, despite being a little jittery the DVD playback does not seem tolerant to defects on the DVD disc, even for the slightest scratch. For a given faulty disc, the result is that playback simply exits at a certain (and consistent) point while watching the movie.

I have compared this to playback on my Mac (apologies for swearing!), which works smoothly, and doesn't appear to notice the disc defect, and also with VLC (running on the mythbuntu box) which appears simply to skip a frame and carry on. Thus I think I can rule out a) that the disc is completely unplayable, and b) that it's not a hardware issue.

My Mythbuntu box is configured to use VDPAU High Quality, and changing the quality (or disabling VDPAU altogether) does not make a difference (besides degraded screen quality). I am using a Sony BC-5500H-01 Bluray slimline combo drive, with an AT3IONT-I deluxe mobo.

The log from > mythfrontend -v playback is here: http://go.warwick.ac.uk/stats/staff/academic-research/jewell/mythfrontend.log.gz

Questions:

1) are there any playback settings I could change in order to improve things? Increasing the size of the playback buffer to allow disc re-reading somehow?

2) Is there a workaround?

3) is anybody else experiencing this issue?

I think this is important to get right, as most DVDs that come from rental stores have seen better days, and fault tolerance is therefore required.

Cheers,

Chris