NAME

       lav2yuv - Convert a MJPEG file to raw yuv

SYNOPSIS

       lav2yuv [options] lavfile1 [lavfile2 ... lavfileN]

DESCRIPTION

       lav2yuv  converts  an  MJPEG  video  sequence described by a sequence of MJPEG video files
       and/or edit lists pointing to such files into the simple uncompressed planar 4:2:0  Y'CbCr
       format, as used by mpeg2enc(1) MPEG encoder and image processing filters like yuvscaler(1)
       or yuv2dfilter(1) or yuvdenoise(1).

       Output is to stdout so that by piping the output of lav2yuv into a suitable pipeline it is
       possible  to  process and then encode or play back video recorded in any of the mjpegtools
       MJPEG container formats: AVI, quicktime or edit lists describing editted versions of video
       held in such files.

       Mixing different files with different video formats is currently not possible.

       The -S -T -D options are used for scene detection which is used by linux video studio.

OPTIONS

       lav2yuv accepts the following options:

       -m   Force mono-chrome

       -c   Conceal frames containing corrupt MJPEG data by repeating the preceeding good frame.

       -S list.el
            Output a scene list with scene detection

       -T num
            Set scene detection threshold to num (default: 4)

       -D num
            Width decimation to use for scene detection (default: 2)

       -o num
            Frame offset - skip num frames at the beginning.  if num is negative all but the last
            num frames are skipped

       -f num
            Only num frames are written to stdout. 0 means that all frames are processed.

       -A width:height
            Set/override the sample aspect ratio (SAR)  emitted  in  the  output  stream  header.
            Currently, the SAR is only auto-detected for DV files, and guessed otherwise.

       -P width:height
            Set  the  intended/approximate display aspect ratio (DAR) for the stream.  This value
            is only used to guess the SAR when it cannot be detected from the input stream.   The
            default DAR is '4:3' (corresponding to a standard TV screen); another useful value is
            '16:9' (corresponding to widescreen TV).

       -C chroma
            Set  output  chroma  (default:   '420jpeg').    Currently,   '420jpeg',   '420mpeg2',
            '420paldv', '422' are available.

       -x   Exchange fields.  Useful if the field order was reversed during editing.

AUTHOR

       This man page was originally 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), yuvscaler(1), yuv2lav(1), yuvdenoise(1), yuvplay(1)