DVR-MS to MPG


a solution...

Using Microsoft's Graphedit and Cyberlink filters, it is possible to to strip the ASF wrapper from a dvr-ms file and get the recorded mpg file without encoding.

Taken from the Media Portal Forums

Here is a quick guide to strip off the ASF wrapper MS use for their DVR-MS file format. This is used in MediaPortal for recording with MPEG-2 capture cards like the Hauppauge PVR-250 / 350 models.

What you need to have...
1. Graphedit http://www.digital-digest.com/dvd/downloads/graphedit.html
2. Cyberlink DirectShow filters MPGMUX.AX & CLDUMP.AX (You'll have to find these)

What you need to do...
1. If not done already register the two filters listed above from the directory where they have been installed.
regsvr32.exe MPGMUX.AX
regsvr32.exe CLDUMP.AX
2. Start Graphedit and the click 'File' then 'Render Media File'
3. Choose the *.DVR-MS file you wish to make into a *.MPG equivalent.
This will automatically build a Graph ultimately providing an output to the Video Renderer and Default DirectSound Device.
4. Remove all filters except the *.DVR-MS output box.
5. Click on 'Graph' then 'Insert Filters' within Graph Edit.
6. Go to the 'Direct Show Filters' section and add 'Cyberlink MPEG Muxer' (MPGMUX.AX) to the Graph.
7. Now add the 'Cyberlink Dump Filter' (CLDUMP.AX) to the Graph and it will prompt for a filename give it a name with a .MPG extension. i.e. Test.mpg.
8. Leave the Filter addition window and connect the DVR Out-1 connector to Audio In on the 'Cyberlink MPEG Muxer' on the Graph.
9. Also connect the DVR Out-2 connector to Video In on the 'Cyberlink MPEG Muxer'
10. Next connect the Output pin from the 'Cyberlink MPEG Muxer' to the 'Cyberlink Dump Filter'
11. You are now ready to get your MPG equivalent file click on 'Graph' and then 'Play' (or click the green play button)
12. You'll notice a green progress indicator moving from left to right. Once complete you will have successfully dumped your MPG file in the same quality it was recorded without re-encoding!!!

Note: The MPG file should be slightly smaller the the original. Don't worry if they are not exactly the same size as we have stripped off the ASF guff.

You can do what you want with the MPEG file. i.e. Convert to AVI, Deinterlace it, Crop It, Resize it, Burn it to DVD/SVCD...etc etc

It worked fine with the two files I tried, but I then ran out of time to try doing something with the resulting MPG files. As I was using RDC to connect into the Media Centre, even playing them wouldn't work as expected. I did try VirtualDub but it didn't like the mpg file, but I am not sure if this was a RDC issue or an issue with the mpg files.

Posted: Mon - March 21, 2005 at 09:16 AM         | |

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