jpeg2yuv(1)

NAME
jpeg2yuv - Convert jpeg images to the yuv format.

SYNOPSIS
jpeg2yuv [-b num] [-f num] [-I num] [-L num] [-n num] [-j filename]

DESCRIPTION
jpeg2yuv pipes a sequence of JPEG files to stdout, making the direct encoding of MPEG files possible under mpeg2enc. Any JPEG format supported by libjpeg can be read. stdout will be filled with the YUV4MPEG2 movie data stream, so be prepared to pipe it on to mpeg2enc or to write it into a file.

OPTIONS
jpeg2yuv 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 JPEG file)
    1 = interleaved fields

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

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

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

BUGS
The frame rate desciption seems not to be up to date. The NTSC integer ratios seems not to be suportet well. As workaround specify a PAL (25) or nativ FILM (24) and set the right frame rate in mpeg2enc with the -F option.

AUTHOR
This man page was written by Bernhard Praschinger.
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)