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View Full Version : AV sync, frames missing


Mounir
18th May 2012, 08:08
I have a problem with a video after encoding in mpeg2 there are missing frames/ time missing(10sec) i don't quite understand what's going on, i have tried various encoder (mainconcept reference etc..)

-When i verify in AVSP all frames are there (7343)

-The video is 59.94i (100% sure) no progressive pulldown or whatever.


What could explain this ?

The script i have used is as follow (img sequence)
v=ImageSource("D:\MyVideo%04d.bmp", 0, 7343,fps = 29.970, use_DevIL = false,pixel_type = "RGB32").assumetff()
a=WAVSource("E:\MyAudio.wav")
audiodub(v,a)
converttoyv12(matrix="rec601",interlaced=true)

sneaker_ger
18th May 2012, 15:36
How did you measure the duration of the final encode? Raw video data duration without a container/an index is often guessed by players.

Mounir
18th May 2012, 21:47
Very simple i'm using mpeg video wizard or even on Sony vegas and compare the source file with the processed file