Encoding for the PSP

[Suzuka]

Im trying to use FFMPEGX to encode videos to the PSP, I've followed to tutorial on the site and was successful twice...but when i try again, it just quickly makes the bell sound and leaves an empty MP4.
The source format is
From: MP4
Video: H264, yuv420p, 640x360
Audio: aac, 44100 Hz, Sterio

Targer Format:
To: PSP
Video: FFMPEG xvid, 320x240, 300kbps, 29,97fps, no crop
Audio: aac, 24000 Hz, 32 kpbs
(AKA default PSP setting)

Im on a real iMac running OS X Leopard

[Case]

Please post the Process Information log, accessible by clicking the blue "i" in the ffmpegX Progress window, so we know what was going on during the conversion attempt.

[jmohr1]

For some reason there is a problem with 264 encoding on multi-core intel macs... To get around this, you need to disable multi-core support. unfortunately, there isnt a good way to do this with out using terminal.

This is the script I use; you can of course change size, bitrate, codec, etc. rename old.avi to the file you're converting and new.mp4 will be your new file. In case you're curious, -level 21 makes the h264 a format psp and ps3 will understand (not needed if you're using xvid), and -coder 1 limits you to 1 thread/core (or so i've been told). Hopefully this is a good starting point in your hunt, not sure if this solves encode from problems, but it solve my encode to problems.

/Applications/ffmpegX.app/Contents/Resources/ffmpeg -y -i ~/Desktop/old.avi -f mp4 -vcodec h264 -level 21 -s 480x272 -b 1000k -coder 1 -acodec aac -ac 2 -ab 128k ~/Desktop/new.mp4