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View Full Version : Transcoding Interlaced VC-1 to x264 with Megui


Sci-Fi-Fan
1st April 2013, 20:24
Hi

I'm having decoding issues with an interlaced VC-1 video stream in Megui.

I have extracted the vc-1 stream to an mkv file using HD Streams Extractor.

The resulting mkv file plays perfectly in every player I've tested it on.

However as soon as I load the the mkv in to megui the decoding is jerky and corrupted.

It would appear that whatever megui's preview window/player is using to decode the video is not working correctly.

I get the same jerky / corrupted video after transcoding, so can only assume that ffvideosource is using the same faulty decoder to frameserve.

But I have no clue what decoder is being used or how to fix it.

If anyone here can point me in the right direction it would be greatly appreciated.

Thanks

sneaker_ger
1st April 2013, 21:52
ffvideosource does indeed not work very well with VC-1 interlaced. If you have access to it I'd recommend DGDecNV, otherwise try DirectShow (DirectShowSource() or Haali's DSS2()) with an appropriate filter (like LAV) as a last resort.

Sci-Fi-Fan
3rd April 2013, 12:51
ffvideosource does indeed not work very well with VC-1 interlaced. If you have access to it I'd recommend DGDecNV, otherwise try DirectShow (DirectShowSource() or Haali's DSS2()) with an appropriate filter (like LAV) as a last resort.

I was unable to get DirectShow or DSS2 to work (produced numerous errors) so took a gamble and made the donation for a DGDecNV Licence.

DGDecNV worked perfectly and even corrected the analyze results when determining the method of interlacing.

Thanks Neuron2 for DGIndex.

1 Last Question.

In Megui's File Indexer it auto picks FFMSIndex and all the DGIndex options are greyed out/disabled.

Is there anyway to enable them?

Thanks for the help:)

Zathor
3rd April 2013, 18:35
Copy your lincence.txt in the megui\tools\dgindexnv folder

Sci-Fi-Fan
3rd April 2013, 18:58
Copy your lincence.txt in the megui\tools\dgindexnv folder

Have done that, DGindexNV is licenced and working, I can run the app directly by clicking on the exe and produce dgi project files that I can then open in avs script creator.

The file indexer in megui seems to pick the indexer it thinks is appropriate and locks out all other options.

Zathor
3rd April 2013, 22:01
Sorry, forgot to mention that you need to enable DGIndexNV in the Settings ("Options\Settings\External Program Configuration")

Sci-Fi-Fan
3rd April 2013, 22:24
Sorry, forgot to mention that you need to enable DGIndexNV in the Settings ("Options\Settings\External Program Configuration")

That did the trick.

Thank you very much.