Man / CODEC固有オプション / -nuvopts

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nuv (-nuvopts) †

Nuppel video is based on RTJPEG and LZO. By default frames are first encoded with RTJPEG and then compressed with LZO, but it is possible to disable either or both of the two passes. As a result, you can in fact output raw i420, LZO compressed i420, RTJPEG, or the default LZO com- pressed RTJPEG.
NOTE: The nuvrec documentation contains some advice and examples about the settings to use for the most common TV encodings.

c=<0-20> †

chrominance threshold (default: 1)

l=<0-20> †

luminance threshold (default: 1)

lzo †

Enable LZO compression (default).

nolzo †

Disable LZO compression.

q=<3-255> †

quality level (default: 255)

raw †

Disable RTJPEG encoding.

rtjpeg †

Enable RTJPEG encoding (default).

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