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frubsen · 14th October 2013, 06:01

Yes if I add the delay it fixes the sync problem. My point is that there shouldn't even be a delay.

I did a test. I demuxed an ac3 track using both VRD(I know this isn't your program), DGIndexNV, and DGAVCDec(I know you don't support this program anymore, I was merely using it for testing purposes.)

I checked the frame count on all 3 AC3 files. Both the output from VRD and DGAVCDec match. The output from DGIndexNV is 3 frames shorter. If I then take those AC3 files and mux it to my encoded video, for both the VRD and DGAVCDec output, I do not have to add a delay and the file is perfectly in sync. If I mux the AC3 output from DGIndexNV to my encoded video, I have to add a delay.

So basically, for whatever reason, DGIndexNV is chopping off 3 frames somewhere. Either at the beginning or end and is causing this delay.

Again, this only seems to be for H.264 files. MPEG2 does not have this issue.

14th October 2013, 06:01	#2957 \| Link
frubsen Registered User Join Date: Jul 2004 Posts: 98	Yes if I add the delay it fixes the sync problem. My point is that there shouldn't even be a delay. I did a test. I demuxed an ac3 track using both VRD(I know this isn't your program), DGIndexNV, and DGAVCDec(I know you don't support this program anymore, I was merely using it for testing purposes.) I checked the frame count on all 3 AC3 files. Both the output from VRD and DGAVCDec match. The output from DGIndexNV is 3 frames shorter. If I then take those AC3 files and mux it to my encoded video, for both the VRD and DGAVCDec output, I do not have to add a delay and the file is perfectly in sync. If I mux the AC3 output from DGIndexNV to my encoded video, I have to add a delay. So basically, for whatever reason, DGIndexNV is chopping off 3 frames somewhere. Either at the beginning or end and is causing this delay. Again, this only seems to be for H.264 files. MPEG2 does not have this issue.