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27th December 2008, 23:03 | #21 | Link | |
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28th December 2008, 18:05 | #23 | Link |
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I know this isnt too smart but: i open file with VirtualDub, in import file dialor set RederiveKeyframes and change fourcc to something stupid like cvid(cinepak). Then change fcc back to "true" codec.
Also its possible to edit index with hexedit but i dunno how to do that. Found that with x264vfw result is not impressive(it often outputs black screen with such totrures), wmv or xvid gives better result Last edited by chornobyl; 28th December 2008 at 18:10. |
29th December 2008, 21:50 | #24 | Link |
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Costs money, but: http://www.digieffects.com/products/damageintro.html
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29th December 2008, 23:05 | #25 | Link |
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Join Date: Sep 2008
Posts: 79
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I compressed part of a DVD in MeGUI to x264 using RAWAVC and made an Avisynth script to open the resulting .264 stream in VirtualDub using FFmpegSource(). When I seek in VirtualDub I get the desired effect, however, when I compress it looks fine.
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30th December 2008, 02:29 | #26 | Link |
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I was just messing around in a hex editor and managed to get the desired effect pretty well. Basically first of all just cut the clip down so it is only the part you want. Then I opened it up in a hex editor, found the data relating to the first frame, and overwrote parts of it.
This hex editor works quite well: http://www.gero-net.de/avihex/ It has a function to jump to the beginning of an avi file. |
30th December 2008, 10:50 | #27 | Link | |
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also I second the hex editor they're always a good option |
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30th December 2008, 18:58 | #28 | Link |
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Additional options are using a fuzzer to damage the file, e.g. http://caca.zoy.org/wiki/zzuf which you can use to help at the same time fixing bugs. Keep in mind that different decoders will treat damaged files very differently.
Another well-know issue that can be used is non-matching idcts for en- and decoding or disabling the inloop filter for H.264 (once saw a video where this caused the sky to go pink...) |
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artifacts, distortion, painting, psychedelic, takeshi murata |
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