diff options
Diffstat (limited to 'Demo/sgi/video/Vrecb.py')
| -rwxr-xr-x | Demo/sgi/video/Vrecb.py | 134 |
1 files changed, 82 insertions, 52 deletions
diff --git a/Demo/sgi/video/Vrecb.py b/Demo/sgi/video/Vrecb.py index 6a539f8..84cd5cc 100755 --- a/Demo/sgi/video/Vrecb.py +++ b/Demo/sgi/video/Vrecb.py @@ -1,28 +1,7 @@ #! /ufs/guido/bin/sgi/python-405 #! /ufs/guido/bin/sgi/python -# Capture a continuous CMIF movie using the Indigo video library and board - - -# Usage: -# -# makemovie [-r rate] [-w width] [moviefile] - - -# Options: -# -# -r rate : capture 1 out of every 'rate' frames (default 1) -# -w width : initial window width (default interactive placement) -# -d : drop fields if needed -# -g bits : greyscale (2, 4 or 8 bits) -# -G : 2-bit greyscale dithered -# -m : monochrome dithered -# -M value : monochrome tresholded with value -# -f : Capture fields (in stead of frames) -# -n number : Capture 'number' fields (default 60) -# -# moviefile : here goes the movie data (default film.video); -# the format is documented in cmif-film.ms +# Capture a CMIF movie using the Indigo video library and board in burst mode # User interface: @@ -51,6 +30,38 @@ import string import imageop import sgi + +# Usage and help functions (keep this up-to-date if you change the program!) + +def usage(): + print 'Usage: Vrecb [options] [moviefile]' + print + print 'Options:' + print '-r rate : capture 1 out of every "rate" frames', \ + '(default and min 1)' + print '-w width : initial window width', \ + '(default interactive placement)' + print '-d : drop fields if needed' + print '-g bits : greyscale (2, 4 or 8 bits)' + print '-G : 2-bit greyscale dithered' + print '-m : monochrome dithered' + print '-M value : monochrome tresholded with value' + print '-f : Capture fields (instead of frames)' + print '-n number : Capture this many frames (default 60)' + print 'moviefile : here goes the movie data (default film.video)' + +def help(): + print 'Press the left mouse button to start recording.' + print 'Recording time is determined by the -n option.' + print 'You can record as many times as you wish, but each' + print 'recording overwrites the output file(s) -- only the' + print 'last recording is kept.' + print + print 'Press ESC or use the window manager Quit or Close window option' + print 'to quit. If you quit before recording anything, the output' + print 'file(s) are not touched.' + + # Main program def main(): @@ -65,37 +76,55 @@ def main(): fields = 0 number = 60 - opts, args = getopt.getopt(sys.argv[1:], 'r:w:dg:mM:Gfn:') - for opt, arg in opts: - if opt == '-r': - rate = string.atoi(arg) - if rate < 2: - sys.stderr.write('-r rate must be >= 2\n') - sys.exit(2) - elif opt == '-w': - width = string.atoi(arg) - elif opt == '-d': - drop = 1 - elif opt == '-g': - grey = 1 - greybits = string.atoi(arg) - if not greybits in (2,4,8): - print 'Only 2, 4 or 8 bit greyscale supported' - elif opt == '-G': - grey = 1 - greybits = -2 - elif opt == '-m': - mono = 1 - elif opt == '-M': - mono = 1 - monotreshold = string.atoi(arg) - elif opt == '-f': - fields = 1 - elif opt == '-n': - number = string.atoi(arg) + try: + opts, args = getopt.getopt(sys.argv[1:], 'r:w:dg:mM:Gfn:') + except getopt.error, msg: + sys.stdout = sys.stderr + print 'Error:', msg, '\n' + usage() + sys.exit(2) + + try: + for opt, arg in opts: + if opt == '-r': + rate = string.atoi(arg) + if rate < 1: + sys.stderr.write('-r rate must be >= 1\n') + sys.exit(2) + elif opt == '-w': + width = string.atoi(arg) + elif opt == '-d': + drop = 1 + elif opt == '-g': + grey = 1 + greybits = string.atoi(arg) + if not greybits in (2,4,8): + sys.stderr.write( \ + 'Only 2, 4 or 8 bit greyscale supported\n') + sys.exit(2) + elif opt == '-G': + grey = 1 + greybits = -2 + elif opt == '-m': + mono = 1 + elif opt == '-M': + mono = 1 + monotreshold = string.atoi(arg) + elif opt == '-f': + fields = 1 + elif opt == '-n': + number = string.atoi(arg) + except string.atoi_error: + sys.stdout = sys.stderr + print 'Option', opt, 'requires integer argument' + sys.exit(2) + + if not fields: + print '-f option assumed until Jack fixes it' + fields = 1 if args[2:]: - sys.stderr.write('usage: Vrec [options] [file]\n') + sys.stderr.write('usage: Vrecb [options] [file]\n') sys.exit(2) if args: @@ -151,7 +180,7 @@ def main(): gl.qdevice(DEVICE.WINSHUT) gl.qdevice(DEVICE.ESCKEY) - print 'Press left mouse to start recording' + help() while 1: dev, val = gl.qread() @@ -231,6 +260,7 @@ def record(v, info, filename, mono, grey, greybits, monotreshold, fields): vout.packfactor = (1,-2) else: print 'Sorry, can only save fields at the moment' + print '(i.e. you *must* use the -f option)' gl.wintitle(filename) return vout.writeheader() |