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lav2yuv (1)
  • >> lav2yuv (1) ( Linux man: Команды и прикладные программы пользовательского уровня )
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    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
    -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 in 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).

     

    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)


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    OPTIONS
    AUTHOR
    SEE ALSO


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