mirror of https://github.com/python/cpython.git
72 lines
2.3 KiB
Plaintext
72 lines
2.3 KiB
Plaintext
This directory contains Python and C code we wrote while we had a
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framegrabber board on loan from SGI.
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--Guido and Jack
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cam.py network real-time tv broadcast; see tv.py
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usage: cam [packfactor [host]]
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specifying 'all' for host broadcasts
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camcorder.py record video movies or make snapshots (in movie format)
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usage: camcorder [-c] [-a audiohost [-s]] [-p pf] [moviefile]
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-c color (equivalent to -p 0)
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-a audiohost syncaudio is running on audiohost
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-s start syncaudio (on audiohost)
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-p packfactor packfactor (default 2; 0 records color)
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moviefile (default film.video)
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keyboard commands:
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s stop grabbing (single step if already stopped)
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c continuous grabbing
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r start recording
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p pause recording (record single frame if paused)
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ESC quit
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statit.py various statistics operations on movie files
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syncaudio.py record audio synchronized with camcorder -a
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usage: syncaudio videohost soundfile
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soundfile format: 16 bits/sample, 16000 samples/sec, 1 channel
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(actually, you'd better set the sampling rate to 16000
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with the audio panel)
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tv.py receiver for transmissions from cam.py
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vcopy.py selectively write frames from one movie file to another
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usage: vcopy infile outfile
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commands: 'n' gets next frame; 'w' writes current frame
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video.py player for movies recorded by camcorder.py
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usage: video [-l] [-p pf] [moviefile [soundfile [skipbytes]]]
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-p pf override packfactor (to zoom)
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-l looping -- restart movie when done
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moviefile default is film.video
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soundfile default is none (no sound)
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skipbytes byte offset in soundfile where sound starts
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vinfo.py print summary of movie file(s)
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usage: vinfo [-d] moviefile ...
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-d print delta times (default: print abs times)
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vpregs.py definition of VP registers
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vtime.py virtual time module imported by syncaudio.py and camcorder.py
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These are C programs, either for efficiency or because they need to
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link with a C library.
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squash.c make a movie smaller by averaging pixels
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usage: squash factor [bits] <moviefile >newmoviefile
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factor x and y compression factor
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bits #bits left per sample in result (default 8)
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squash2.c make a movie smaller by dropping pixels
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usage: squash2 factor <moviefile >newmoviefile
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factor x and y compression factor
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tomono.c like squash2 but outputs a monochrome movie
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v2i.c convert the first frame of a movie file to SGI .rgb format
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link with -limage
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