2012-03-06, 17:54
Okay, from your description I suspect that your problem is a configuration issue. What you are doing is not "typical" and the problem with any kind of re-clocking and re-sampling of the audio/video (which you must do in order to speed up a 23.976 source to 24.00 fps) is that you are going to either drop audio or drop video frames when bitstreaming audio.
Just for reference, I experienced many of the same issues that you are describing, when I was trying to get "proper" clocking with a GT430 and the Intel on-board graphics. I wanted perfect 1080P playback with no frame drops. However, the clocks in the video cards are not accurate enough for this to happen. You have to choose if you want a dropped video frame or dropped audio frame (audio dropout). I was able to get away with it with the low def formats (I could clock both playback and source to 1080p/23.976 and get error free playback) but it is not possible with HD audio, probably due to some of the differences like frame size variation in True-HD bitstream output.
However, with the Radeon 6000 series, the clock appears close enough that re-sync frames are able to keep it in sync properly to my Yamaha RXV-1800 and then on to my Panasonic 1080P Plasma TV, with no frame drops and no audio dropouts.
I am simply using the "sync to source" option in XBMC. Monitoring diagnostics during playback show that even during a 2+ hour long movie there is not a single dropped frame unless I pause/resume or ff/rew the movie.
I think that you are reporting breakage that isn't really there. You should find out if anyone using re-clock or similarly speeding up the playback clock speed to 24FPS as you are doing is able to use these builds without audio dropout taking place.
Just for reference, I experienced many of the same issues that you are describing, when I was trying to get "proper" clocking with a GT430 and the Intel on-board graphics. I wanted perfect 1080P playback with no frame drops. However, the clocks in the video cards are not accurate enough for this to happen. You have to choose if you want a dropped video frame or dropped audio frame (audio dropout). I was able to get away with it with the low def formats (I could clock both playback and source to 1080p/23.976 and get error free playback) but it is not possible with HD audio, probably due to some of the differences like frame size variation in True-HD bitstream output.
However, with the Radeon 6000 series, the clock appears close enough that re-sync frames are able to keep it in sync properly to my Yamaha RXV-1800 and then on to my Panasonic 1080P Plasma TV, with no frame drops and no audio dropouts.
I am simply using the "sync to source" option in XBMC. Monitoring diagnostics during playback show that even during a 2+ hour long movie there is not a single dropped frame unless I pause/resume or ff/rew the movie.
I think that you are reporting breakage that isn't really there. You should find out if anyone using re-clock or similarly speeding up the playback clock speed to 24FPS as you are doing is able to use these builds without audio dropout taking place.