mirror of https://github.com/python/cpython.git
Lots of changes, options (from Vtime.py) etc.
Cleverer skipping of frames.
This commit is contained in:
Guido van Rossum
parent
9a35d57ab2
commit
78aab86201
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@ -5,13 +5,17 @@
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# Usage:
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#
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# Vplay [-l] [-m maginfy] [file] ...
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# Vplay [-L] [-M maginfy] [-m msec] [-q] [-r msec] [-s factor] [file] ...
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# Options:
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#
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# -l : loop, playing the movie over and over again
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# -m magnify : magnify the image by the given factor
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# -L : loop, playing the movie over and over again
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# -M magnify : magnify the image by the given factor
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# -m n : drop frames closer than n msec (default 0)
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# -q : quiet, no informative messages
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# -r n : regenerate input time base n msec apart
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# -s speed : speed change factor after other processing (default 1.0)
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# file ... : file(s) to play; default film.video
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@ -22,7 +26,8 @@
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#
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# Press ESC or select the window manager Quit or Close window option
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# to close a window; if more files are given the window for the next
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# file now pops up.
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# file now pops up. Unless looping, the window closes automatically
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# at the end of the movie.
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import sys
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@ -39,94 +44,174 @@
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magnify = 1
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looping = 0
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speed = 1.0
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mindelta = 0
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quiet = 0
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regen = None
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# Main program -- mostly command line parsing
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def main():
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global magnify, looping
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opts, args = getopt.getopt(sys.argv[1:], 'lm:')
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global magnify, looping, speed, mindelta, quiet, regen
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opts, args = getopt.getopt(sys.argv[1:], 'LM:m:qr:s:')
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for opt, arg in opts:
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if opt == '-l':
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if opt == '-L':
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looping = 1
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elif opt == '-m':
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elif opt == '-M':
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magnify = string.atoi(arg)
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elif opt == '-m':
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mindelta = string.atoi(arg)
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elif opt == '-q':
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quiet = 1
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elif opt == '-r':
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regen = string.atoi(arg)
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elif opt == '-s':
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speed = float(eval(arg))
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if not args:
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args = ['film.video']
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for filename in args:
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process(filename)
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# Process one file
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# Process one movie file
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def process(filename):
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vin = VFile.VinFile().init(filename)
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print 'File: ', filename
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print 'Version: ', vin.version
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print 'Size: ', vin.width, 'x', vin.height
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print 'Pack: ', vin.packfactor, '; chrom:', vin.chrompack
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print 'Bits: ', vin.c0bits, vin.c1bits, vin.c2bits
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print 'Format: ', vin.format
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print 'Offset: ', vin.offset
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vin.magnify = magnify
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try:
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vin = VFile.VinFile().init(filename)
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except IOError, msg:
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sys.stderr.write(filename + ': I/O error: ' + `msg` + '\n')
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return
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except VFile.Error, msg:
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sys.stderr.write(msg + '\n')
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return
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except EOFError:
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sys.stderr.write(filename + ': EOF in video header\n')
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return
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if not quiet:
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print 'File: ', filename
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print 'Version: ', vin.version
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print 'Size: ', vin.width, 'x', vin.height
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print 'Pack: ', vin.packfactor, '; chrom:', vin.chrompack
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print 'Bits: ', vin.c0bits, vin.c1bits, vin.c2bits
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print 'Format: ', vin.format
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print 'Offset: ', vin.offset
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gl.foreground()
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gl.prefsize(vin.width * magnify, vin.height * magnify)
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win = gl.winopen('* ' + filename)
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win = gl.winopen(filename)
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if quiet:
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vin.quiet = 1
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vin.initcolormap()
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gl.qdevice(ESCKEY)
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gl.qdevice(WINSHUT)
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gl.qdevice(WINQUIT)
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t0 = time.millitimer()
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running = 1
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data = None
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t = 0
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n = 0
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while 1:
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if running:
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stop = playonce(vin)
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if stop or not looping:
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break
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gl.wintitle('(done) ' + filename)
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while not stop:
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dev, val = gl.qread()
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if dev in (ESCKEY, WINSHUT, WINQUIT):
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stop = 1
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gl.winclose(win)
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# Play a movie once; return 1 if user wants to stop, 0 if not
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def playonce(vin):
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if vin.hascache:
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vin.rewind()
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vin.colormapinited = 1
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vin.magnify = magnify
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tin = 0
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told = 0
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nin = 0
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nout = 0
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nmissed = 0
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nskipped = 0
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t0 = time.millitimer()
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while 1:
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try:
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tin, size, csize = vin.getnextframeheader()
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except EOFError:
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break
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nin = nin+1
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if regen:
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tout = nin * regen
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else:
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tout = tin
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tout = int(tout / speed)
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if tout - told < mindelta:
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try:
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t, data, chromdata = vin.getnextframe()
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n = n+1
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vin.skipnextframedata(size, csize)
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except EOFError:
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t1 = time.millitimer()
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gl.wintitle(filename)
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print 'Recorded:', n,
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print 'frames in', t*0.001, 'sec.',
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if t:
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print '-- average',
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print int(n*10000.0/t)*0.1,
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print 'frames/sec',
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print
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t = t1-t0
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print 'Played:', n,
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print 'frames in', t*0.001, 'sec.',
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if t:
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print '-- average',
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print int(n*10000.0/t)*0.1,
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print 'frames/sec',
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print
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if looping and n > 0:
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vin.rewind()
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vin.magnify = magnify
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continue
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else:
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running = 0
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if running:
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dt = t + t0 - time.millitimer()
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if dt > 0:
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time.millisleep(dt)
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vin.showframe(data, chromdata)
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if not running or gl.qtest():
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print '[short data at EOF]'
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break
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nskipped = nskipped + 1
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else:
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told = tout
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dt = tout + t0 - time.millitimer()
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if dt < 0:
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try:
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vin.skipnextframedata(size, csize)
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except EOFError:
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print '[short data at EOF]'
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break
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nmissed = nmissed + 1
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else:
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try:
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data, cdata = vin.getnextframedata \
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(size, csize)
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except EOFError:
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print '[short data at EOF]'
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break
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dt = tout + t0 - time.millitimer()
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if dt > 0:
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time.millisleep(dt)
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vin.showframe(data, cdata)
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nout = nout + 1
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if gl.qtest():
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dev, val = gl.qread()
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if dev in (ESCKEY, WINSHUT, WINQUIT):
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gl.winclose(win)
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break
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return 1
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if dev == REDRAW:
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gl.reshapeviewport()
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if data:
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vin.showframe(data, chromdata)
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vin.showframe(data, cdata)
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t1 = time.millitimer()
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if quiet:
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return 0
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print 'Recorded:', nin, 'frames in', tin*0.001, 'sec.',
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if tin: print '-- average', int(nin*10000.0/tin)*0.1, 'frames/sec',
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print
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if nskipped:
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print 'Skipped', nskipped, 'frames'
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tout = t1-t0
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print 'Played:', nout,
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print 'frames in', tout*0.001, 'sec.',
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if tout: print '-- average', int(nout*10000.0/tout)*0.1, 'frames/sec',
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print
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if nmissed:
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print 'Missed', nmissed, 'frames'
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return 0
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# Don't forget to call the main program
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