mirror of
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174 lines
3.4 KiB
Python
Executable file
174 lines
3.4 KiB
Python
Executable file
#! /usr/bin/env python
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# Print some info about a CMIF movie file
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# Usage:
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#
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# Vinfo [-d] [-q] [-s] [-t] [file] ...
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# Options:
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#
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# -d : print deltas between frames instead of frame times
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# -q : quick: don't read the frames
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# -s : don't print times (but do count frames and print the total)
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# -t : terse (one line/file, implies -s)
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# file ... : file(s) to inspect; default film.video
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import sys
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sys.path.append('/ufs/guido/src/video')
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import VFile
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import getopt
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import string
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# Global options
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short = 0
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quick = 0
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delta = 0
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terse = 0
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maxwidth = 10
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# Main program -- mostly command line parsing
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def main():
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global short, quick, delta, terse, maxwidth
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try:
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opts, args = getopt.getopt(sys.argv[1:], 'dqst')
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except getopt.error, msg:
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sys.stdout = sys.stderr
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print msg
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print 'usage: Vinfo [-d] [-q] [-s] [-t] [file] ...'
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sys.exit(2)
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for opt, arg in opts:
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if opt == '-q':
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quick = 1
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if opt == '-d':
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delta = 1
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if opt == '-s':
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short = 1
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if opt == '-t':
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terse = short = 1
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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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maxwidth = max(maxwidth, len(filename))
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sts = 0
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for filename in args:
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if process(filename):
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sts = 1
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sys.exit(sts)
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# Process one file
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def process(filename):
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try:
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vin = VFile.RandomVinFile(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 1
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except VFile.Error, msg:
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sys.stderr.write(msg + '\n')
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return 1
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except EOFError:
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sys.stderr.write(filename + ': EOF in video file\n')
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return 1
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if terse:
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print string.ljust(filename, maxwidth),
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kbytes = (VFile.getfilesize(filename) + 1023) / 1024
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print string.rjust(`kbytes`, 5) + 'K',
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print ' ', string.ljust(`vin.version`, 5),
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print string.ljust(vin.format, 8),
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print string.rjust(`vin.width`, 4),
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print string.rjust(`vin.height`, 4),
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if type(vin.packfactor) == type(()):
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xpf, ypf = vin.packfactor
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s = string.rjust(`xpf`, 2) + ',' + \
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string.rjust(`ypf`, 2)
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else:
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s = string.rjust(`vin.packfactor`, 2)
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if type(vin.packfactor) == type(0) and \
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vin.format not in ('rgb', 'jpeg') and \
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(vin.width/vin.packfactor) % 4 <> 0:
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s = s + '! '
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else:
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s = s + ' '
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print s,
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sys.stdout.flush()
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else:
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vin.printinfo()
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if quick:
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if terse:
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print
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vin.close()
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return 0
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try:
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vin.readcache()
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if not terse:
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print '[Using cached index]'
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except VFile.Error:
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if not terse:
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print '[Constructing index on the fly]'
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if not short:
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if delta:
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print 'Frame time deltas:',
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else:
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print 'Frame times:',
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n = 0
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t = 0
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told = 0
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datasize = 0
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while 1:
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try:
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t, ds, cs = vin.getnextframeheader()
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vin.skipnextframedata(ds, cs)
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except EOFError:
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break
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datasize = datasize + ds
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if cs: datasize = datasize + cs
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if not short:
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if n%8 == 0:
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sys.stdout.write('\n')
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if delta:
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sys.stdout.write('\t' + `t - told`)
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told = t
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else:
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sys.stdout.write('\t' + `t`)
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n = n+1
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if not short: print
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if terse:
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print string.rjust(`n`, 6),
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if t: print string.rjust(`int(n*10000.0/t)*0.1`, 5),
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print
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else:
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print 'Total', n, 'frames in', t*0.001, 'sec.',
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if t: print '-- average', int(n*10000.0/t)*0.1, 'frames/sec',
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print
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print 'Total data', 0.1 * int(datasize / 102.4), 'Kbytes',
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if t:
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print '-- average',
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print 0.1 * int(datasize / 0.1024 / t), 'Kbytes/sec',
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print
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vin.close()
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return 0
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# Don't forget to call the main program
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try:
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main()
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except KeyboardInterrupt:
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print '[Interrupt]'
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