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| 1 | +#! /ufs/guido/bin/sgi/python |
| 2 | + |
| 3 | +# Play synchronous video and audio. |
| 4 | +# Highly experimental! |
| 5 | + |
| 6 | +import sys |
| 7 | +import getopt |
| 8 | +import string |
| 9 | +import os |
| 10 | + |
| 11 | +import VFile |
| 12 | +import aifc |
| 13 | + |
| 14 | +import gl, GL, DEVICE |
| 15 | +import al, AL |
| 16 | + |
| 17 | + |
| 18 | +def usage(): |
| 19 | + sys.stderr.write( \ |
| 20 | + 'usage: aplay [-o offset] [-q qsize] videofile audiofile\n') |
| 21 | + sys.exit(2) |
| 22 | + |
| 23 | +def main(): |
| 24 | + offset = 0 |
| 25 | + qsize = 0 # This defaults to 1/10 second of sound |
| 26 | + videofile = 'film.video' |
| 27 | + audiofile = 'film.aiff' |
| 28 | + |
| 29 | + try: |
| 30 | + opts, args = getopt.getopt(sys.argv[1:], 'o:q:') |
| 31 | + except getopt.error, msg: |
| 32 | + sys.stderr.write(msg + '\n') |
| 33 | + usage() |
| 34 | + |
| 35 | + try: |
| 36 | + for o, a in opts: |
| 37 | + if o == '-o': |
| 38 | + offset = string.atoi(a) |
| 39 | + if o == '-q': |
| 40 | + qsize = string.atoi(a) |
| 41 | + except string.atoi_error: |
| 42 | + sys.stderr.write(o + ' arg must be integer\n') |
| 43 | + usage() |
| 44 | + |
| 45 | + if len(args) > 2: |
| 46 | + usage() |
| 47 | + |
| 48 | + if args: videofile = args[0] |
| 49 | + if args[1:]: audiofile = args[1] |
| 50 | + |
| 51 | + if not os.path.exists(videofile) and \ |
| 52 | + os.path.exists(videofile + '.video'): |
| 53 | + if not args[1:] and os.path.exists(videofile + '.aiff'): |
| 54 | + audiofile = videofile + '.aiff' |
| 55 | + videofile = videofile + '.video' |
| 56 | + |
| 57 | + print 'Opening video input file..' |
| 58 | + vin = VFile.VinFile().init(videofile) |
| 59 | + |
| 60 | + print 'Opening audio input file..' |
| 61 | + ain = aifc.open(audiofile, 'r') |
| 62 | + print 'rate :', ain.getframerate() |
| 63 | + print 'channels:', ain.getnchannels() |
| 64 | + print 'frames :', ain.getnframes() |
| 65 | + print 'width :', ain.getsampwidth() |
| 66 | + print 'kbytes :', \ |
| 67 | + ain.getnframes() * ain.getnchannels() * ain.getsampwidth() |
| 68 | + |
| 69 | + print 'Opening audio output port..' |
| 70 | + c = al.newconfig() |
| 71 | + c.setchannels(ain.getnchannels()) |
| 72 | + c.setwidth(ain.getsampwidth()) |
| 73 | + nullsample = '\0' * ain.getsampwidth() |
| 74 | + samples_per_second = ain.getnchannels() * ain.getframerate() |
| 75 | + if qsize <= 0: qsize = samples_per_second / 10 |
| 76 | + qsize = max(qsize, 512) |
| 77 | + c.setqueuesize(qsize) |
| 78 | + saveparams = [AL.OUTPUT_RATE, 0] |
| 79 | + al.getparams(AL.DEFAULT_DEVICE, saveparams) |
| 80 | + newparams = [AL.OUTPUT_RATE, ain.getframerate()] |
| 81 | + al.setparams(AL.DEFAULT_DEVICE, newparams) |
| 82 | + aport = al.openport(audiofile, 'w', c) |
| 83 | + |
| 84 | + print 'Opening video output window..' |
| 85 | + gl.foreground() |
| 86 | + gl.prefsize(vin.width, vin.height) |
| 87 | + wid = gl.winopen(videofile + ' + ' + audiofile) |
| 88 | + gl.clear() |
| 89 | + vin.initcolormap() |
| 90 | + |
| 91 | + print 'Playing..' |
| 92 | + gl.qdevice(DEVICE.ESCKEY) |
| 93 | + gl.qdevice(DEVICE.LEFTARROWKEY) |
| 94 | + gl.qdevice(DEVICE.RIGHTARROWKEY) |
| 95 | +## gl.qdevice(DEVICE.UPARROWKEY) |
| 96 | +## gl.qdevice(DEVICE.DOWNARROWKEY) |
| 97 | + gl.qdevice(DEVICE.SPACEKEY) |
| 98 | + |
| 99 | + while 1: |
| 100 | + samples_written = 0 |
| 101 | + samples_read = 0 |
| 102 | + lastt = 0 |
| 103 | + pause = 0 |
| 104 | + while 1: |
| 105 | + if gl.qtest(): |
| 106 | + dev, val = gl.qread() |
| 107 | + if val == 1: |
| 108 | + if dev == DEVICE.ESCKEY: |
| 109 | + sys.exit(0) |
| 110 | + elif dev == DEVICE.LEFTARROWKEY: |
| 111 | + offset = offset - 100 |
| 112 | + print 'offset =', offset |
| 113 | + elif dev == DEVICE.RIGHTARROWKEY: |
| 114 | + offset = offset + 100 |
| 115 | + print 'offset =', offset |
| 116 | + elif dev == DEVICE.SPACEKEY: |
| 117 | + pause = (not pause) |
| 118 | + |
| 119 | + if pause: |
| 120 | + continue |
| 121 | + |
| 122 | + try: |
| 123 | + t, data, cdata = vin.getnextframe() |
| 124 | + except EOFError: |
| 125 | + break |
| 126 | + t = int(t) |
| 127 | + dt = t - lastt |
| 128 | + lastt = t |
| 129 | + target = samples_per_second * t / 1000 |
| 130 | + n = target - samples_written + qsize - offset |
| 131 | + if n > 0: |
| 132 | + # This call will block until the time is right: |
| 133 | + try: |
| 134 | + samples = ain.readframes(n) |
| 135 | + except EOFError: |
| 136 | + samples = '' |
| 137 | + k = len(samples) / len(nullsample) |
| 138 | + samples_read = samples_read + k |
| 139 | + if k < n: |
| 140 | + samples = samples + (n-k) * nullsample |
| 141 | + aport.writesamps(samples) |
| 142 | + samples_written = samples_written + n |
| 143 | + vin.showframe(data, cdata) |
| 144 | + |
| 145 | + while 1: |
| 146 | + try: |
| 147 | + samples = ain.readframes(qsize) |
| 148 | + except EOFError: |
| 149 | + break |
| 150 | + if not samples: |
| 151 | + break |
| 152 | + aport.writesamps(samples) |
| 153 | + k = len(samples) / len(nullsample) |
| 154 | + samples_read = samples_read + k |
| 155 | + samples_written = samples_written + k |
| 156 | + |
| 157 | + print samples_read, 'samples ==', |
| 158 | + print samples_read * 1.0 / samples_per_second, 'sec.' |
| 159 | + print lastt, 'milliseconds' |
| 160 | + |
| 161 | + print 'Restarting..' |
| 162 | + ain.close() |
| 163 | + ain = aifc.open(audiofile, 'r') |
| 164 | + vin.rewind() |
| 165 | + |
| 166 | + |
| 167 | +main() |
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