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View Full Version : Possibility of copying a DVD with applied AVS filters?

Typhoon859
16th February 2009, 11:48
This may sound a little crazy, but I was wondering if there was any program that is able to copy a DVD, only, copies it with your added AVS script. It would have to re-encode the MPEG-2 stream I guess but, I dunno how it'd turn out really... Is there something like that though?
Comatose
16th February 2009, 17:12
You just load your DVD, add your filters and encode the AVS to MPEG-2 then replace the video...
But you would probably be better off encoding to DivX/XviD if you're re-encoding for a standalone.
Typhoon859
16th February 2009, 23:42
You just load your DVD, add your filters and encode the AVS to MPEG-2 then replace the video...
But you would probably be better off encoding to DivX/XviD if you're re-encoding for a standalone.

You recommend DivX/XVID over h264?...

And uh, yeah, if I'm going to do that, might as well encode to one of those rather than to MPEG-2. Besides, that's not exactly what I meant. 1) Is it even possible to just replace the VOB files with my encoded ones in the DVD, burn the files with the switched VOBs, and have it working? 2) If I re-encode MPEG-2 to MPEG-2, using the same bitrate especially, the quality is going to worsen, isn't it?

The whole point was not to lose any quality in this process by re-encoding to another codec. I want to be able to just apply the filters to the original MPEG-2 stream by just applying the changes to the frames or something. I was thinking that maybe there was a program that can do that. Something similar to what MKV2VOB does for MKV files, when it transcodes them to work for the PS3.
Typhoon859
18th February 2009, 12:54
I guess not :/ If somebody knows for sure that it isn't a possibility, posting that would be appreciated too. That way, I won't have to waste my time.
Guest
18th February 2009, 15:12
Avisynth works with decompressed video. VOBs contain compressed video. So to apply filtering you will need to decompress the video and then recompress it.
Alex_ander
18th February 2009, 15:13
1) Is it even possible to just replace the VOB files with my encoded ones in the DVD, burn the files with the switched VOBs, and have it working? 2) If I re-encode MPEG-2 to MPEG-2, using the same bitrate especially, the quality is going to worsen, isn't it?

1) It is possible to replace with DVDRemake. Some people like VOBBlanker + PGCEdit for this; there are manuals at videohelp.com for addition of subtitles etc. with further replacement in original structure with menus.
2)Yes, it's better to re-encode with a higher bitrate.
Typhoon859
18th February 2009, 15:35
1) It is possible to replace with DVDRemake. Some people like VOBBlanker + PGCEdit for this; there are manuals at videohelp.com for addition of subtitles etc. with further replacement in original structure with menus.
2)Yes, it's better to re-encode with a higher bitrate.

Either way, it's going to worsen. The point of this is not to have any losses besides those that may be caused due to the AVS script. Plus, it would have to be the same bitrate in order for the content to fit back on a disc. Thanks for the info though. There were times that I've needed to remake a DVD so now I know that it's possible :)
Typhoon859
18th February 2009, 15:40
Avisynth works with decompressed video. VOBs contain compressed video. So to apply filtering you will need to decompress the video and then recompress it.

I'm not quite sure I follow. I'm able to apply my AVISynth code in FFDShow in order to play back DVDs/any other video file supported by FFDShow with applied filtering (to the degree that my processor can handle). That's where this idea came from. I want to be able to have these changes permanently, rather than have them reprocessed every time I play the DVD. Plus, I want these improvements to remain for playback on DVD Players, like on the PS3 or w/e.
Guest
18th February 2009, 15:42
FFDShow applies its filters after decompressing the video. Then the filtered, decompressed video is displayed on the screen. If you want to put it back on a DVD you have to re-encode to MPEG2.
Typhoon859
18th February 2009, 15:47
FFDShow applies its filters after decompressing the video. Then the filtered, decompressed video is displayed on the screen.

OH! Cool. I didn't know that. Well then, obviously it's not possible then to do what it is I want. Thanks.

I guess the closest thing would be encode it with an MPEG-2 codec with the applied filters and remake the DVD. I'm going to have to try that some time ^^