2010-11-14, 10:23 | Link #521 | |
C
Join Date: Oct 2010
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Quote:
Unfortuatly that commanfd don't work for me. |
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2010-11-15, 09:31 | Link #523 | |
Banned
Join Date: Nov 2003
Location: Hamburg
Age: 54
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Quote:
It's something you shouldn't turn on except in the most desperate CPU conditions. |
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2010-11-15, 18:28 | Link #524 | |
C
Join Date: Oct 2010
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Quote:
I don't have playback issues with VSfilter Subpicture pre-buffering set ON with any kind of non retarded softsubbed stuff when I play the video normally (from the start to the end). But when I change the position to one that have moving signs or soft-k the effect don't play in a stable way just for the effect-time. The CPU is T6600. |
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2010-11-22, 14:52 | Link #526 | |
yotsuba channel
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2010-12-05, 17:05 | Link #528 |
Member Member
Join Date: Jul 2008
Location: Czech Republic
Age: 32
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My question might sound dumb, but I really need some help with it. I'm trying to convert a DVD into MKV. I've created the .d2v file with DGIndex, ITVC'd it and applied some other filters in AviSynth, and processed it through MeGui into the final .mkv file. However, only later did I realize that there's something wrong with the aspect ratio.
I did some research and found what I should probably do. I've got here a NTSC DVD 16:9 with SAR 40:33, so I should crop it to 704x480, the closest mod16 resolution to the active frame of 710.85×480. In my AviSynth script I cropped it to 704x480 using Crop(8,0,-8,0), and what do I do now? Can I do something in AviSynth (like LanczosResize) or do I have to set something in MeGui? I tried reading some instructions but everyone said something completely different. A few minutes later I found an option to set DAR in MeGui. I thought I should use 1.823, however 1.778 seems to be the correct one. Does it have to do anything with me cropping it in AviSynth? Or is it just my imagination and 1.823 is correct? Still, I'd like to know if I can get the right aspect ratio by setting SAR instead? |
2010-12-05, 19:34 | Link #529 |
Aegisub dev
Join Date: Sep 2004
Location: Stockholm, Sweden
Age: 39
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As long as you haven't resampled the video frame, the SAR is constant regardless of crop. That's the point of using the sample aspect ratio, rather than the display (or frame) aspect ratio.
Also I believe that the sample aspect ratio for 16:9 480 line video would be more along the lines of 1.2:1. 480 lines / (16/9 pixels/line) = 853.33 pixels 853.33 display pixels / 710.85 encoded pixels = 1.2 stretch factor Please correct me if I'm wrong.
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2010-12-05, 22:43 | Link #530 | |
Translator, Producer
Join Date: Nov 2003
Location: Tokyo, Japan
Age: 44
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Quote:
DAR / SAR = PAR, so (16/9) / (3/2) = 32/27 = 1.18 = PAR. (DAR is Display Aspect Ratio, SAR is Storage Aspect Ratio, and PAR is Pixel Aspect Ratio = stretch factor). The PAR for 16/9 DVD video should be 32/27 (1.18) The PAR for 4/3 DVD video should likewise be 8/9 (0.89).
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2010-12-06, 16:39 | Link #532 |
Member Member
Join Date: Jul 2008
Location: Czech Republic
Age: 32
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Thanks for your advices. In the end I decided to try out different settings and compare the results. The video file I eventually muxed into my final matroska file was encoded with --sar 40:33 line. There is one thing that's been bothering me regarding this. 40:33 is PAR, isn't it? Then why is it "--sar"?
If anyone was interested, here's what I got: DAR set to 1.823 produced the same file size as --sar 32:27. DAR 1.823 was too flat, --sar 32:27 was too stretched. --sar 40:33 gave me the correct ratio. The final AR was 853x480 (though MPC plays it at 704x396 with borders expanding it to 704x480). I also achieved the same result by setting DAR to 1.778 (16:9). |
2010-12-09, 03:57 | Link #536 | |
Translator, Producer
Join Date: Nov 2003
Location: Tokyo, Japan
Age: 44
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Quote:
Terminology sucks, ya know? Anyway that's why I was specific to what PAR meant in my post.
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2011-10-05, 16:49 | Link #538 |
Aegisub dev
Join Date: Sep 2004
Location: Stockholm, Sweden
Age: 39
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Yes. You did something wrong.
After the "return" statement, nothing more is done, that's what return means. It means "the clip given here is the final result", in this case it's the "C" clip.
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2011-10-05, 23:55 | Link #539 |
Member
Join Date: Sep 2010
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Emm TNX! I fixed it like that:
a=DirectShowSource(Video,fps=23.976,convertfps=true) b=DirectShowSource(Video,fps=23.976,convertfps=true).Trim(2159,33311) last=a+b TEXTSUB(Subtitles) TEXTSUB(Subtitles) Workin'! edit: I have anothr problem ): Avsp write: "the audio of the two clips have different samplerates, use SSRC/()ResampleAudio()" What is SSRC ot Resampeaudio? Thanks. Last edited by gilcohen; 2011-10-06 at 14:08. |
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