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Capturing Non-dvd Source
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spockminov
Posted: Sep 2 2002, 10:56 PM


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Hey, I'm a newb, so what the hell....I'll ask away.

Here's the scoop, I'm capturing non-DVD quality source (VHS tapes) and then burning it onto SVCD. I understand that the 'proper' VDub procedure is to use a codec w/ almost no compression -- Huffyuv or PicVideo MJPEG. The resulting capture file using those codecs is MASSIVE (many, many GB...).

Well, here's the question....is there anything wrong w/ capturing to DivX (using a high bitrate (say, 1400-2200)). You end up w/ compressed capture file, but not too bad and the quality is still good. Then I edit it and encode to MPEG2/SVCD via TMPGEnc. The result so far is pretty good (good enough for archiving VHS tapes).

What do I lose by capturing to DivX and then converting to MPEG2? Maybe it is a newb way to capture but I don't have 20-30+ GB of HD space to play with....
 
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avih
Posted: Sep 3 2002, 10:35 AM


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capturing directly to divx/xvid/others is quite hard for the cpu at high resolutions. i.e. you would need quite a strong pc to capture 704x576 with divx (with any settings that u try), especially if u want high quality (you STILL have to re-encode to your desired bitrate).

basically, if it looks good enough for u at the end, here u go wink.gif

i can also suggest capturing with ffmpeg, which from my experience is quite light on the cpu with some settings. worth a try as an intermediate substitution for huffyuv or mjpeg if you're low on hd space, but have a 1G+ cpu.
 
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spockminov
Posted: Sep 3 2002, 03:09 PM


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avih --

thanks for the reply. Yeah, I guess my PC (P3, 1.0Ghz) can handle capture to DivX only at lo-rez (320x240). Any higher rez, and it craps out/drops frames.

You mentioned ffmpeg codec. I d/d'ed it but all it contains is one file, a ".out" file. How to I load that inot VDub so it shows up in my codec list?

Thanks..
 
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avih
Posted: Sep 3 2002, 03:38 PM


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oops, i ment ffvfw (which is based on ffmpeg). get it from http://cutka.szm.sk/ffvfw

cheers
 
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SillKotscha
Posted: Sep 3 2002, 05:23 PM


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Posts: 146
Member No.: 6
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QUOTE (spockminov @ Sep 3 2002, 12:56 AM)
What do I lose by capturing to DivX and then converting to MPEG2?

most of the quality... cool.gif

--------------------
"Have you ever noticed that whenever Microsoft calls something 'Smart', it's definitely a feature you want to disable!"
 
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spockminov
Posted: Sep 3 2002, 05:38 PM


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avih:

so if i hit that d/l page, I can get ffvfw as an .exe or a .dll. How I install it? If I run the .exe., it finishes and then when I go into VDub and capture>compression, VDub crashes/closes. If I uninstall the ffvfw.exe, VDub is fine.

Any ideas? Do I need to move the ffvfw.dll to a certain VDub or programfiles folder?

thanks..
 
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avih
Posted: Sep 3 2002, 08:32 PM


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it seems you installed it correctly. ffvfw is VERY experimental atm. it's working for many, and not working for some (i.e. with my pc i can use it for quantizer/quality mode, but not cbr mode).

just forget it, or wait for an improved release.

anyway, as most ppl know, if you can afford this, you should use huffyuv or mjpeg at quality of about 19.

 
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