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PostPosted: 28 Jan 2009, 15:25 
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Yeah, what about video clips.


You can do that same method with video clips, too.

a = blah()
b = blah()
c = a+b


You can also encode the files separately and just combine the two .264 files in order since they're raw bitstreams.


Another curiosity of mine, is it possible to cut a video clip after it has been encoded without re-rendering it?


Yeah, just extract the raw bitstream out of the MP4 of MKV, cut the end off, and then remux.

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PostPosted: 28 Jan 2009, 17:18 
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Hmm what program is suitable for doing that? I dont think Vegas can do that as when you go to save the file you have to render it in some format or another.

Also for joining things what program are you refering too?

I know how to do it in avisynth but your talking about something else.

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PostPosted: 28 Jan 2009, 17:26 
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copy is a cmd prompt command. You can use it to join files. :) Just type copy /? (you'll want to use /B, too).

For cutting, I'd use Avisynth.

You can probably do that without even demuxing it. (but you'd have to remux it still)

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PostPosted: 28 Jan 2009, 18:43 
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Ok cool I'll look into it later.

I tried my speed test to feed a fraps file directly into x264 and it did not work.

Does not support the video type.

So looks like I have to transcode it with avs2yuv after all.

No big deal, I'll do a speed test on the next file I edit in vegas that is rendered as a huffyuv file.

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PostPosted: 28 Jan 2009, 21:56 
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Nope, you can't pass it directly to x264.

mplayer frapsvid.avi -ao null -vo yuv4mpeg
ren stream.yuv stream.y4m
x264 options stream.y4m

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PostPosted: 29 Jan 2009, 01:29 
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Okay intrupting this Dopefish & ViciousXUSMC chat channel :lol: .

What codec do you guys use for the sound. Currently looking at AAC, but can't encode to it. Or do you know a better codec :)


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PostPosted: 29 Jan 2009, 06:32 
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Nero AAC is what I use now.

Prior to that I used FAAC. AAC is to MP3 as H264 is to DIVX/XVID.

Though for a DVD rip I may just copy the AC3 track depending.

What do you mean you cant encode to it though? NeroAACenc.exe is a free file and all you really need if you use CLI.

If you want a good interface
BeLight uses BeSweet wich is an advanced program that ties Neroaacenc into a few other progograms to expand its options.

http://forum.doom9.org/showthread.php?s=&threadid=85566

BeSweet stuff is here, along with a program that I have not tried yet AACMachine its supposed to be good.

http://besweet.notrace.dk/

Also there is another GUI out there called BeHappy.

@dopefish

This has been a great leaning experience for me. I love to learn new things it gets me all excited. Also it has made me revisit something I didn't dare touch a long time ago.

Mame! :P I can easily use the CLI version of it now rather than relying on a GUI (though a GUI may be nice since there are so many games and remembering the names would be impossible for all of them)

I just got the x86 and x64 versions of the windows binaries and got them up and running. The x64 binary loads stuff way faster but the actual game play so far for the one game I tried is awful it skips and stutters not sure why.

Here is what really interest me though it looks like a good place to start to learn how to compile from source code: http://mrdo.mameworld.info/compile.html

Its probably all automated due to the files they provide but I am going to try to compile a 64bit Mame with the newest updates, and hopefully find how to compile x264 at some point.

Note to self need new hard drive... 150GB of Mame files..

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PostPosted: 25 Feb 2009, 19:22 
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Got any recommended settings/flags for encoding with x264? I've already done a few runs but am wondering if I can get better image quality (High Profile ABR 2000 at 720p).


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PostPosted: 26 Feb 2009, 01:13 
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If you absolutely must target a bitrate instead of quality (i.e. for size reason, burning to a DVD or copying to a memory stick), then mess with these:

x264 --bitrate 2000 --ref 6 --mixed-refs --no-fast-pskip --bframes 16 --b-pyramid --weightb --direct auto --subme 9 --trellis 2 --psy-rd 1.0:0.1 --partitions all --8x8dct --me tesa --threads auto --progress --no-dct-decimate --no-psnr --no-ssim --pass 1 --output video.264 input.y4m

x264 --bitrate 2000 --ref 6 --mixed-refs --no-fast-pskip --bframes 16 --b-pyramid --weightb --direct auto --subme 9 --trellis 2 --psy-rd 1.0:0.1 --partitions all --8x8dct --me tesa --threads auto --progress --no-dct-decimate --no-psnr --no-ssim --pass 2 --output video.264 input.y4m


You can cut down on the options for the first pass to make it go by quicker. However, these options in general are going to encode very slowly. :)

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PostPosted: 26 Feb 2009, 06:02 
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I'm not aiming at a bitrate or filesize (though the lower filesize would be a bit nicer), I just want some better image quality. I mentioned ABR 2000 as an example of what I used (and am kinda unimpressed) with.


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