[MPlayer-users] A/V sync doesn't work due to invalid frame duration?

[Liu Mars]

Hi, currently I am facing a funny A/V sync problem. 

When I play some RMVB files, the A/V sync doesn't work. Sound is much 
faster than the Video. Like the following message:
A:  29.1 V:  19.0 A-V: 10.129 ct:  0.308 567/567 99% 21% 12.7% 560 0

If I try to do fast forwarding, I get this message:
Invalid frame duration value (45145.000/45.111 => -45099.889). Defaulting 
to 0.033 sec.

I thought this may be why A/V doesn't work.

The Video decoder is [rv3040] vfm: realvid (Linux RealPlayer 10 RV30/40 
decoder).
The Audio decoder is [ffcook] afm: ffmpeg (FFmpeg COOK audio decoder)

I've already tested a lot of RMVB files which are encoded in the same Video 
and Audio Codec. A/V sync works in some RMVB, but not all of them.

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