numinterval(1) [debian man page]

NUMINTERVAL(1)						User Contributed Perl Documentation					    NUMINTERVAL(1)

NAME

       numinterval - Show the numeric intervals between each line in a file.

SYNOPSIS

       numinterval [-dhV] <FILE>

       | numinterval [-dhV]    (Input on STDIN from pipeline.)

       numinterval [-dhV]      (Input on STDIN.  Use Ctrl-D to stop.)

DESCRIPTION

       numinterval will calculate and display the numeric interval between one number and the next on an input stream.

       This can be quite useful for showing quantities of increase or decrease of data when the numbers themselves aren't providing you with what
       you want.  For instance, I wrote this program after wanting to see the rate of change in box office ticket sales for movies on imdb.com.
       ;-)

OPTIONS

	   -h  Help: You're looking at it.
	   -V  Increase verbosity.
	   -d  Debug mode.  For developers
	   -q  Don't print any warnings.  Quiet mode.

SEE ALSO

       numaverage(1), numbound(1), numnormalize(1), numgrep(1), numprocess(1), numsum(1), numrandom(1), numrange(1), numround(1)

COPYRIGHT

       numinterval is part of the num-utils package, which is copyrighted by Suso Banderas and released under the GPL license.	Please read the
       COPYING and LICENSE files that came with the num-utils package

	 Developers can read the GOALS file and contact me about providing
       submitions or help for the project.

MORE INFO

       More info on numinterval can be found at:

       http://suso.suso.org/programs/num-utils/

perl v5.10.1							    2009-10-31							    NUMINTERVAL(1)

png2yuv(1)							MJPEG tools manual							png2yuv(1)

NAME

       png2yuv - Convert PNG images to the YUV4MPEG stream format.

SYNOPSIS

       png2yuv [-b num] [-f num] [-I num] [-L num] [-n num] [-l num] [-j filename]

DESCRIPTION

       png2yuv decompresses a sequence of PNG files and pipes the image data to stdout as a YUV4MPEG2 stream.  Any 8bit/pixel PNG format supported
       by libpng can be read.  stdout will be filled with the YUV4MPEG movie data stream, so be prepared to pipe it on to mpeg2enc or to write	it
       into a file.

       This tool is incomplete.  The alternative utility you are probably looking for is ppmtoy4m(1), which is also included in MJPEGtools.

OPTIONS

       png2yuv accepts the following options:

       -b num
	    Frame offset:  skip output of the first 'num' frames.  (default: 0)

       -f num
	    Set the frame rate of stream accepts the same numbers. Not default, this option has to be specified.

       -I num
	    interlacing mode: p = none / progressive
	    t = top field first
	    b = bottom field first
	    No default, this option has to be specified.

       -L num
	    0 = non-interleaved (two successive fields per PNG file)
	    1 = interleaved fields

       -l num
	    Specifies the number of loops (default: 0 loops )

       -S samp_mode
	    chroma subsampling mode, only for professionals, for more info see ppmtoy4m and the YUV guide on http://www.mir.com/DMG/.
	    default: 420_jpeg
	    When  this	option	is not used the given range of images is only processed once. If you use this option and as number 1, jpeg2yv will
	    loop forever writing the image to stdout. When you use n > 1 it will loop. n-time till it finishes.

       -n num
	    Specifies the nummber of frames to process. (default: all = -1)

       -j {1}%{2}d{3}
	    Read PNG frames with the name components as follows:
	     {1} PNG filename prefix (e g: picture_ )
	     {2} Counting placeholder (like in C, printf, eg 06 ))
	     {3} File extension. Something like this: .png A correct description of the files could look like this: picture_%06d.png

       -v num
	    Verbosity level (0, 1 or 2)

BUGS

       The frame rate description does not seem to be up to date. The NTSC integer ratios are not supported (use floating point instead). As work-
       around  specify	a  PAL	(25)  or native FILM (24) and set the right frame rate in mpeg2enc with the -F option.	Interlaced handling is not
       implemented yet.

AUTHOR

       This man page was written by Gernot Ziegler.
       If you have questions, remarks, problems or you just want to contact the developers, the main mailing list for the MJPEG-tools is:
	 mjpeg-users@lists.sourceforge.net

       For more info, see our website at
	      http://mjpeg.sourceforge.net

SEE ALSO

       mjpegtools(1), mpeg2enc(1), ppmtoy4m(1), yuv2lav(1), yuvdenoise(1), yuvmedianfilter(1), yuvscaler(1)

MJPEG Linux Square						  2 February 2003							png2yuv(1)