bboy_sonik Wrote:So I'm wondering if anyone has any tips or advice in this regard. In particular, I use TMPGEnc 4 Xpress to create my AVC videos for the PSP with the settings below - if anyone has any tips/corrections/optimizations for what I use, let me know what you think is best!

x264 is one of the best H.264 encoders out there - dunno what your TMPGEnc is using.

bboy_sonik Wrote:Oh ONE LAST THING; does anybody know what the FULL FORMAT SUPPORT is for the PSP v5.00 firmware???? I had to guess my AVC encoder settings and trial-and-error to get it to work and don't know if its the best encode! Anyway those TMPGEnc 4 settings are here...

Limitations for PSP:
- Main profile
- Level 3.0
- Max reference frames = 3
- Appears to have no b-frame limit
- Resolutions up to 480x272; supports some resolutions above that (640x480, 720x480 and some other one), however, for playback on the PSP, there's no need to exceed 480x272, since that's the size of the PSP screen
- Not sure what framerate limitations it has, but anything under 30fps (majority of videos) should work fine
- Any LC-AAC audio seems to work (probably doesn't accept sampling rates above 48kHz, but I've yet to see anything that exceeds that)



As for efficiency of compression, the rest depends on your preference for quality, and how slow you're willing to make the encoder go.