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Protected Commands

To perform most commands that reduce the coding quality, you must enter the level three security password. This is UNLOCK and is entered by typing:

This will now allow you to enter protected commands, although it will time out after a while.

• - fix the H261 quantiser to 8. Bitfield codecs have a bug which mean the usual variable quantisers the codecs generate cause corrupted images. Fixing the quantiser to 8 prevents this at the expense of slightly lower quality video.

• - cancel a fix quantiser command and return to higher quality video.

• - don't produce inter frames (results in very low quality video)

• - stop encoding motion vectors (results in lower quality, but may be useful when there's a lot of packet loss)

• - actually not a protected command, but cancels most of the above.