I am using Gnome's Totem player, but cannot play videos encoded as H.264 properly. They play, but the sound rapidly becomes unsynchronised from the video. This only happens with H.264 videos.

I have tried researching this problem generally on the internet, but have come up empty.

I am aware that codecs are to do with the back-end of this application, namely GStreamer.

Totem does not have - as far as I know - any facility to alter the playback speed of video/audio as the video is playing (unlike mplayer). However, mplayer does not play H.264 on my machine at all, and another thread I put on Linuxquestions about this has ground to a halt (http://www.linuxquestions.org/questi...-video-738275/). However, if I could just get the sound-synching problem fixed in Totem, all would be well.

Are there any forums for Totem that I could try for an answer, or does anyone have any suggestions how I could fix this problem? H.264 videos play, but just not with synchronised sound!

Steve

Can you check your CPU while playing? Maybe it can't handle the h264 video and that's why the audio gets desynced.

No, processor never gets above 30%. And my graphics are on-board - no separate video card.

It's actually the sound getting a tiny bit advanced of the picture. You notice it most when someone is speaking direct to camera - lip sync is about 0.25 of a second out.

I have searched for a proper Totem forum but cannot find one. Other Linux/Ubuntu forums have messages from users mostly not being able to play H.264 at all, and many messages are years old.

Does anyone have any further suggestions?

Steve