67 lines
2.2 KiB
Plaintext
67 lines
2.2 KiB
Plaintext
PRPA
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====
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Apply a video-filtering chain with full exploitation of multi-threading.
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Usage
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-----
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./prpa [options] [file...]
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Options are one or more of the following:
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-h [ --help ] produce help message
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-f [ --filter ] arg apply a filter (see below)
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-i [ --input-file ] arg file to treat
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-o [ --output ] arg output file
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-c [ --codec ] arg output codec
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-d [ --disable ] disable parallelism
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Codecs
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------
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Codec name are 4-character codes that can be found on this page
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http://www.fourcc.org/codecs.php
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Codec name *must* match the output file extension.
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Exemples are:
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-c MP42 -o .avi # MPEG4
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-c MP42 -o .mp4 # MPEG4
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-c XVID -o .avi # Xvid
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-c theo -o .ogg # OGG Theora
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Note that MP42 and XVID are two of the quickest output codecs and thus will not
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be a bottleneck for the parallelism.
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Filter
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------
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Available filters are:
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* grey Produce black and white ouput.
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* reverse Reverse colors.
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* cartoon Try to apply a "cartoon" effect (VERY SLOW).
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* drunk Simulate alcool abuse.
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* count Count frame per thread (debug?).
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* color=B,G,R Apply the B,G,R color filter.
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* sepia Apply a sepia effect.
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* blur[=X] Blurs the video, X is the strength of the blur effect.
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* merge Merge 2 videos pixel per pixel with a transparent effect.
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* interlace Merge 2 videos, alterning between one pixel of each.
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* inlay=B,G,R Inlay a video into another one at the place of the
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B, G or R color, trying to replace the whole color, not
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just the particular value.
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* strictinlay=B,G,R Inlay a video into another one at the place of the
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precise BGR color asked.
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For the merge, interlace, inlay and strict inlay filters, at least two videos
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must be passed in the input files list.
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Examples
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--------
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./prpa -f drunk -f sepia -o bar.avi -c MP42 foo.avi
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./prpa -f blur=50 -f reverse -o bar.avi -c XVID foo.avi
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./prpa -f inlay=1,0,0 -o bar.avi -c XVID foo.avi inlayed.avi
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./prpa -f strictinlay=255,137,42 -o bar.avi -c XVID orig.avi inlayed.avi
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time ./prpa -f drunk -f sepia -o bar.avi -c MP42 foo.avi
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time ./prpa -d -f drunk -f sepia -o bar.avi -c MP42 foo.avi
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