[mythtv-users] MythVideo audio sync
raymond at wagnerrp.com
Wed Oct 5 19:10:57 UTC 2011
On 10/5/2011 14:58, Stefan D wrote:
> I have a few videos that works fine in mplayer but in Myth i get very
> jerky video and sound. Get the following errors:
> 2011-10-05 20:49:44.870072 W [10793/16831] Decoder
> avformatdecoder.cpp:4230 (GetFrame) - AFD: Audio 1381 ms behind video
> but already 180 video frames queued. AV-Sync might be broken.
> It is some kind of HD wmv file i think. Should Myth be able to play
> files as good as mplayer, or is the video file to blame?
MythTV and mplayer both run off the same set of video decoding libraries
provided by the FFmpeg project. In theory, they should both be equally
capable players, but of course different forks from different times, and
different optimizations applied to each are going to cause problems. It
is entirely possible there is a flaw in MythTV's handling of such files
that has yet gone unrecognized, as there is simply so little use of them.
What hardware are you playing this on? What playback profile are you
using? 'wmv' is a pretty broad description, encompassing several
generations of video encoding. Do you know specifically what format the
video is in or the bitrate? If not, use 'mplayer -identify' to print
out this information.
More information about the mythtv-users