mark0077
12th October 2009, 21:09
Hi all,
I have ripped all of my DVD's to mkv and have a very neat movie collection. Recent builds of ffdshow and mpc-hc play these at the correct aspect ratio (some tricks and if statements I believe to get around inaccurate mpeg2 aspect ratio flags).
Well I have one movie, James Bond - The World Is Not Enough. This movie plays in 4:3 instead of the 16:9 that is seen when playing from the original DVD.
To get around this, I had to
1) Extract the mpeg2 video file from my mkv using mkvextract 2) Use DVDPatcher to change the Horizontal + Vertical Size + Aspect Ratio settings and apply to "entire file"
3) Deselect the original mpeg2 stream from my mkv, and use the "fixed" mpeg2 file that was output from dvd patcher.
4) Mux this to the final file
This is fine, the aspect ratio is perfect now, image quality all fine etc, but the audio and video is out of sync by approx 2 seconds.
I can't understand why. I have made sure this mpeg2 track within the mkv has the ID of 1 (just like the original mkv file) but nothing seems to get rid of the audio / video sync problem.
Does anyone know what I might be doing wrong, or is there a nicer way to do what I did above. I notice the audio and video is perfectly in sync at the start, and seems to get worse as the time goes on. I can seek back and forth to compare the sync from beginnning to end and the start seems almost perfect.... Even merging back in the original mpeg2 stream gives the same effect so its not dvdpatchers fault.
I have ripped all of my DVD's to mkv and have a very neat movie collection. Recent builds of ffdshow and mpc-hc play these at the correct aspect ratio (some tricks and if statements I believe to get around inaccurate mpeg2 aspect ratio flags).
Well I have one movie, James Bond - The World Is Not Enough. This movie plays in 4:3 instead of the 16:9 that is seen when playing from the original DVD.
To get around this, I had to
1) Extract the mpeg2 video file from my mkv using mkvextract 2) Use DVDPatcher to change the Horizontal + Vertical Size + Aspect Ratio settings and apply to "entire file"
3) Deselect the original mpeg2 stream from my mkv, and use the "fixed" mpeg2 file that was output from dvd patcher.
4) Mux this to the final file
This is fine, the aspect ratio is perfect now, image quality all fine etc, but the audio and video is out of sync by approx 2 seconds.
I can't understand why. I have made sure this mpeg2 track within the mkv has the ID of 1 (just like the original mkv file) but nothing seems to get rid of the audio / video sync problem.
Does anyone know what I might be doing wrong, or is there a nicer way to do what I did above. I notice the audio and video is perfectly in sync at the start, and seems to get worse as the time goes on. I can seek back and forth to compare the sync from beginnning to end and the start seems almost perfect.... Even merging back in the original mpeg2 stream gives the same effect so its not dvdpatchers fault.