y4mtoppm -V (return code: 1)
y4mtoppm: invalid option -- '-'
**ERROR: [y4mtoppm] For usage hints, use option '-h'. Please take a hint.
y4mtoppm -h (return code: 0)
usage: y4mtoppm [options]
Reads YUV4MPEG2 stream from stdin and produces RAW PPM image(s) on stdout.
Converts digital video Y'CbCr colorspace to computer graphics R'G'B',
and performs chroma supersampling.
options: (defaults specified in [])
-L interleave fields into single PPM image
-v n verbosity (0,1,2) [1]