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lav2yuv - Online in the Cloud

Run lav2yuv in OnWorks free hosting provider over Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

This is the command lav2yuv that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

PROGRAM:

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.

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