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NAME

       yuv2lav - encodes lavtool’s raw YUV frame streams into MJPEG files

SYNOPSIS

       yuv2lav  [-f a|A|q|m]  [-q num] [-b num] [-I num] [-m num] [-v num] [-w
       file] -o output-file

DESCRIPTION

       yuv2lav is a simple MJPEG encoder for raw YUV frame streams as they are
       emitted  by  lav2yuv(1)  or lavpipe(1), for example. It reads its input
       from stdin and is capable of writing AVI and Quicktime.

OPTIONS

       The command line options allow to specify the output  file  name,  JPEG
       encoding  quality  and  the amount of memory that will be allocated for
       JPEG compressed data.

       -o output-file
              This (compulsorary) option  sets  the  name  of  the  file  that
              yuv2lav  will write its output to. If the output file contains a
              % (e.g. file%02d.avi), the output will be  written  to  multiple
              files  in  case this is necessary (file00.avi, file01.avi and so
              on).

       -f a|A|q
              This sets the output file format, which has to be one of
               a - for AVI file output,
               A - for AVI with reversed fields,
               q - for Quicktime output or
              AVI with reversed field of course only makes sense if  yuv2lav’s
              feed  is an interlaced video source and should only be needed if
              you experience frame reversal problems in your output.   If  you
              don’t  use that option yuv2lav will set the output format to AVI
              if the last 3 char are avi, or to Quicktime if you use  mov.  If
              you use the -f option it overides the setting in the filename

       -q num This  option  specifies  the  JPEG  encoding  quality  as passed
              through to libjpeg. The default value is 80, num must lie within
              24...100  inclusive  (think of it as percentage values, although
              with a lossy compression algorithm like JPEG,  keeping  100%  of
              the original quality is of course not really possible).

       -b num This  option  specifies  the size of the buffer (in kBytes) that
              yuv2lav allocates in order to store the compressed JPEG data  in
              it.  The  default  value  (256k)  is  perfectly  enough for 100%
              quality full sized PAL/NTSC, but if you want to compress  Super-
              Mega-HDTV  or  if you are low on memory, you can use this option
              to suit your needs.

       -m num This is the maximum size (in MB) per file. Normally this depends
              on the output file type.

       -I num Force  a  specific  interlacing  type. 0 means no interlacing, 1
              means top-field-first, 2 means bottom-field-first.

       -w file
              This is the WAV file containing audio data to be  combined  with
              the video stream into the output file.

       -v num Verbosity  level.  0  means  only print error messages, 2 prints
              full debug output.

       -?     Display a synopsis of the command syntax.

EXAMPLES

       lav2yuv movie.avi | yuv2lav -fq -q 30 lowbitrate.qt
              would recompress movie.avi as a low bit rate Quicktime file.

       lavpipe input.pli | yuv2lav -q80 output.avi
              would save the movie assembled by lavpipe as a single AVI  file.

BUGS

       If  you  experience  any  problems  with this tool, please feel free to
       contact the developers (see below).

AUTHOR

       This man page was written by pHilipp Zabel.
       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

       lav2yuv(1),    lavpipe(1),    lavplay(1),    lavrec(1),    mpeg2enc(1),
       yuvscaler(1)