pnmtoy4m(1) MJPEG tools manual pnmtoy4m(1) (NAME) pnmtoy4m - PNM/PPM YUV4MPEG2 (SYNOPSIS) pnmtoy4m [] [] (DESCRIPTION) pnmtoy4m PPM PGM PBM PAM YUV4MPEG2 . ( ) << PNM>> . (stdout) (pipe) MJPEG . () () . PNM (stdin) . PNM pnmtoy4m . . (progressive) (interleaved fields) ( ) (interlaced) . PPM PGM ( 'maxval' ). PPM R'G'B' . YUV4MPEG2 "4:4:4" ( ) Y'CbCr ( ITU-R BT.601) . ( 4:2:0 MPEG) y4mscaler . PGM ([0,255]) . PGM PBM BT.601 YUV4MPEG2 ("MONO" - ) . PAM PNM PAM TUPLTYPE . pnmtoy4m TUPLTYPE "GRAYSCALE" PGM "RGB" PPM "RGB_ALPHA" PPM ( YUV4MPEG2 BT.601 ). pnmtoy4m y4mtopnm . (lossy) . PNM (interlacing) (sample aspect ratio) ( pnmtoy4m ). (OPTIONS) pnmtoy4m : -o num : num . (: 0) -n num num . '0' . (: 0) -B RGB BGR . -r . -n 0 . -D x PNM () . : t - (top-field) b - (bottom-field) . : -I -D ( ) . -F n:d . (: 30000:1001) : 24000:1001 - NTSC 3:2 pulldown 24:1 - (native film) 25:1 - PAL/SECAM 30000:1001 - NTSC 50:1 - PAL 60000:1001 - NTSC -A n:d . (: 1:1) : 1:1 - ( ) 10:11 - CCIR-601 NTSC 59:54 - CCIR-601 PAL -I x . ( -D 'p' .) p - (progressive) t - / (top-field-first) b - / (bottom-field-first) -v [0,1,2] . 0 = . 1 = . 2 = . (EXAMPLES) PPM (): pnmtoy4m -n 15 -r some-image.ppm Targa ( ) YUV4MPEG2 yuvplay : ls *.tga | xargs -n1 tgatoppm | pnmtoy4m | yuvplay (AUTHOR) Matt Marjanovic . MJPEG-tools : mjpeg-users@lists.sourceforge.net : http://mjpeg.sourceforge.net (SEE ALSO) pam(5), pbm(5), pgm(5), pnm(5), ppm(5), y4mtopnm(1), mjpegtools(1), mpeg2enc(1), y4mscaler(1), yuv2lav(1), yuvplay(1) MJPEG Tools Team 28 April 2004 pnmtoy4m(1)