How PTS/DTS is set/calculated in vlc ?

[ragas]

Dear Xperts,

I am working on linux. And i am trying to sync Audio n Video . And the pts data generated at ....ffmpeg/video.c is constant i.e it doesn't get updated ( throughout the running of the video file ) . So due to which i think, i am getting a wrong time stamp all the time. As in the following code below , i_late_frames gets incremented ...
if( p_sys->i_pts && p_sys->i_pts <=( mdate() + 1000000 ) &&
!(p_block->i_flags & BLOCK_FLAG_PREROLL) )
{
p_sys->i_late_frames++;
.
.
}

and finally i get " "more than 5 seconds of late video -> dropping frame (computer too slow ?)" ) " error message and the video passes till 5 sec, and it continous again.

A/V sync is present, but it pauses n plays from time to time. Anybody can put some light on this problem ?

Question :
1) Can somebody direct/ guide me to some material on how/ where pts information is set in vlc ?
2) Any other methods to manipulate PTS to prevent it as late frame and stop those error messages , such that it doesn't affects
A/V sync ?


Warm Regards,
Sagar

[Jean-Baptiste Kempf]

Ask on vlc-devel mailing list.