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4th July 2006, 00:45 | #1 | Link |
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Location: UK
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Want to use MEGUI/x264 for something but cant.
Right now, i encode my caps 3 at a time for 1 dvd. i use x264 via vdubmod to encode. basically, i do 1 pass across all 3 clips together, and the 2nd pass to individual clips.
i.e 1st pass frame 1 - 30 and 2nd pass - frame 1 - 10, then another clip from frame 11 - 20, and 3rd clip frame 21 - 30. to get better quality i would like to use megui with x264 as opposed to vfw but i need to be able to split the encoded mp4 video file. i cant see any way of doing this in megui. only using zones which afaik, doesnt create seperate files. i've also checked mkvmerge and while it does let me specify a time to split the file, it isnt frame specific. ok, that took a lot more writing than i though anyone know anyway of doing what i need here? either frame specific cutting on mp4 video files, or using megui to split the video as above? Last edited by tomos; 4th July 2006 at 00:52. |
4th July 2006, 01:33 | #2 | Link |
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You can't do it frame-accurately while also keeping the frame allocation decided by the first pass, unless you are exceptionally lucky, because you can only split on GOP boundaries, which are determined by the first pass.
So you have a few choices:
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4th July 2006, 14:55 | #3 | Link |
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ta for the reply,
constant quality is simply not an option really. the other options of encoding each segment individually is also not something i could do. i want to spread the bitrate over the entire video and this would defeat that purpose. on a positive note, i tried the splitting in mkvmerge and while it wasnt perfect, it wasnt noticeable to me so i'll use that. as long as i keep the original timestamps i should be ok with that i think |
4th July 2006, 22:47 | #4 | Link | ||
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4th July 2006, 16:00 | #5 | Link | |
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6th July 2006, 10:14 | #7 | Link | |
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Quote:
It's amazing what some people can think of >_< In short: you could not do it in VfW and you can't do it with MeGUI either........ [edit] this is perhaps a good proof that XviD's 2pass2 must do some sanity checks on video - same resolution and length (+/- couple of frames for b-frame lag safety) are a must... Last edited by sysKin; 6th July 2006 at 10:19. |
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7th July 2006, 15:40 | #8 | Link |
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the only thing now that i need to fix, is to be able to insert a keyframe to make the splitting a little more precise. would 'zones' help at all in this?
i mean could i just add the different sections into megui as zones but leave settings in there as default, encode as normal with 2 passes and then split with mkvmerge? |
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