| import sys |
| import sv, SV |
| import gl, GL, DEVICE |
| |
| def main(): |
| format = SV.RGB8_FRAMES |
| requestedwidth = SV.PAL_XMAX |
| queuesize = 30 |
| if sys.argv[1:]: |
| queuesize = eval(sys.argv[1]) |
| |
| v = sv.OpenVideo() |
| svci = (format, requestedwidth, 0, queuesize, 0) |
| |
| go = raw_input('Press return to capture ' + `queuesize` + ' frames: ') |
| result = v.CaptureBurst(svci) |
| svci, buffer, bitvec = result |
| ## svci, buffer = result # XXX If bit vector not yet implemented |
| |
| print 'Captured', svci[3], 'frames, i.e.', len(buffer)/1024, 'K bytes' |
| |
| w, h = svci[1:3] |
| framesize = w * h |
| |
| gl.prefposition(300, 300+w-1, 100, 100+h-1) |
| gl.foreground() |
| win = gl.winopen('Burst Capture') |
| gl.RGBmode() |
| gl.gconfig() |
| gl.qdevice(DEVICE.LEFTMOUSE) |
| gl.qdevice(DEVICE.ESCKEY) |
| |
| print 'Click left mouse for next frame' |
| |
| for i in range(svci[3]): |
| inverted_frame = sv.RGB8toRGB32(1, \ |
| buffer[i*framesize:(i+1)*framesize], w, h) |
| gl.lrectwrite(0, 0, w-1, h-1, inverted_frame) |
| while 1: |
| dev, val = gl.qread() |
| if dev == DEVICE.LEFTMOUSE and val == 1: |
| break |
| if dev == DEVICE.REDRAW: |
| gl.lrectwrite(0, 0, w-1, h-1, inverted_frame) |
| if dev == DEVICE.ESCKEY: |
| v.CloseVideo() |
| gl.winclose(win) |
| return |
| v.CloseVideo() |
| gl.winclose(win) |
| |
| main() |