Scripts for AVI recording

[wheels1758]

Is there a reason that my game runs at about 1/10th of the normal speed. It is basically impossible to actually ride, because the game is running so slow. It took about 5 minutes to record 53 seconds.....

[DJ99X]

Well, your not supposed to ride when you are recording. As you are recording and playing the game, more cpu will be used, which will slow the gameplay down. It will do this with any recorder, just this one will replay at 30 fps regardless of how many fps the game is running at

[yomo]

Well, your not supposed to ride when you are recording.

Which means record a demo file

Edit mxavi.bat. To set the jpeg quality, add -q [quality] to the yuv2lav command where quality is between 24 and 100. E.g:

mx --record-audio a-stereo-88320.ub --record-video --lock-fps 30 --width 640 --height 480 | ppmtoy4m -F 30:1 -S 420jpeg | yuv2lav -o v.avi -f a -q 100

You can set some other things too. Change --width 640 --height 480 to whatever resolution you want. You can also set the framerate. Try --lock-fps 60 and -F 60:1 and you will get more temporal resolution for doing slow motion effects.

if i put the resolution to 1440 x 900 (size of my screen) and at jpeg quality 100 will the movie be huge? (will is even run?)

Also i know it records in avi, but all of my movie editing software (on mac) doesn't support it. can i use a converter or is there another way to change it to mp4 or .dv etc.

[jlv]

1440x900 should work but I bet it will be slow. For quicktime output change "-f a" to "-f q":

mx --record-audio a-stereo-88320.ub --record-video --lock-fps 30 --width 640 --height 480 | ppmtoy4m -F 30:1 -S 420jpeg | yuv2lav -o v.mov -f q -q 100

You might want to check out the MJPEG Tools page and the MJPEG Howto.

[yomo]

you really are amazing thanks heaps.

[motox161]

When I first tried this it would always bring up the 1.1 version. I read in an earlier post just to rename it to mx.exe. Tried it and it still didnt work. So I just decided to delete all off the mxsim snapshots so that I would only have the latest and thats what it would have to open. But now when I click on the mxavi to record it opens for a millisecond and then goes away. Does anyone have any idea on how to get it to work?

[jlv]

In mxavi.bat, try replacing mx with the full path to the mx.exe you want. For example:

path %PATH%;c:\Program Files\MX Simulator

"c:\Wherever MX Sim Is Installed\mx.exe" --record-audio a-stereo-88320.ub --record-video --lock-fps 30 --width 640 --height 480 | ppmtoy4m -F 30:1 -S 420jpeg | yuv2lav -o v.avi -f a

[motox161]

tried that and it still didnt work, but i renamed it to mx-2008-12-03.exe and it works fine now. Thanks for the help though

[yomo]

ok i built my new computer today and it is amazing...

Anyway i recorded at the stock resolution at quality 100 and it worked perfect... i tried to change the resolution to 2560x1600 (size of the screen) it recorded with very slight glitchyness but then it didnt join the avi. I tried with 1280x1024 and it still didnt join. It looked like it was and the audio file disappeared but there is no movie?

anyhelp anyone>?

[yomo]

Sorry to double post...

But how do I increase the buffer size. That seems to be the problem for anything bigger that the stock settings

[wheels1758]

Yomo, did you change the size in the mxavi.bat file? or did you run the file and change the size of the game by pressing maximize? If you are using the command prompt, when you press maximize(or change the size at all) it says that it cannot record. Change the resolution in the mxavi.bat file. Should solve the problem.

[yomo]

yeah I have been changing that but as soon as I go to high resolution it says it is buffering to slow

[jlv]

Try adding -b 15000 to the yuv2lav options:

mx --record-audio a-stereo-88320.ub --record-video --lock-fps 30 --width 2560 --height 1600 | ppmtoy4m -F 30:1 -S 420jpeg | yuv2lav -o v.avi -f a -q 100 -b 15000

That will set the buffer size to 15 megabytes.

[Mutt]

whatever, got it working

[suzuki98]

sorry i am new to the recording here is my question i can record fine but the playback is very poor quality here is what my bat file looks like
mx --record-audio a-stereo-88320.ub --record-video --lock-fps 30 --width 640 --height 480 | ppmtoy4m -F 30:1 -S 420jpeg | yuv2lav -o v.avi -f a -q 100 -b 15000