diff options
| -rwxr-xr-x | Demo/sgi/video/Vb.py | 89 | ||||
| -rw-r--r-- | Demo/sgi/video/VbForm.fd | 20 |
2 files changed, 83 insertions, 26 deletions
diff --git a/Demo/sgi/video/Vb.py b/Demo/sgi/video/Vb.py index e6fecdf..0a0ced1 100755 --- a/Demo/sgi/video/Vb.py +++ b/Demo/sgi/video/Vb.py @@ -118,7 +118,7 @@ class VideoBagOfTricks: self.in_maxmem.set_input('1.0') self.in_nframes.set_input('0') self.in_nframes_vcr.set_input('1') - self.in_sleeptime.set_input('1.0') + self.in_rate_vcr.set_input('1') # Audio defaults self.aout = None self.aport = None @@ -200,6 +200,13 @@ class VideoBagOfTricks: def reset(self): self.close_video() self.close_audio() + if self.vcr: + try: + ok = self.vcr.still() + except VCR.error: + pass + self.vcr = None + self.b_capture.set_button(0) # Event handler (catches resize of video window) @@ -277,7 +284,7 @@ class VideoBagOfTricks: def cb_nframes_vcr(self, *args): pass - def cb_sleeptime(self, *args): + def cb_rate_vcr(self, *args): pass # Audio controls: format, file @@ -319,6 +326,7 @@ class VideoBagOfTricks: self.reset() def cb_play(self, *args): + self.reset() sts = os.system('Vplay -q ' + self.vfile + ' &') def cb_quit(self, *args): @@ -411,7 +419,9 @@ class VideoBagOfTricks: self.stop_audio() self.capturing = 0 self.end_cont() - self.reset() + if self.aout: + # If recording audio, can't capture multiple sequences + self.reset() self.b_capture.label = saved_label def single_capture(self): @@ -436,22 +446,66 @@ class VideoBagOfTricks: try: self.vcr = VCR.VCR().init() self.vcr.wait() - self.vcr.fmmode('dnr') + if not (self.vcr.fmmode('dnr') and \ + self.vcr.dmcontrol('digital slow')): + self.vcr_error('digital slow failed') + return except VCR.error, msg: self.vcr = None - self.b_capture.set_button(0) - fl.show_message('VCR error', str(msg), '') + self.vcr_error(msg) return - count = self.getint(self.in_nframes_vcr, 1) - if count <= 0: count = 1 - sleeptime = self.getfloat(self.in_sleeptime, 1.0) - for i in range(count): - if i > 0: - time.sleep(sleeptime) - if not self.single_capture(): - break - if not self.vcr.step(): + if not self.vcr.still(): + self.vcr_error('still failed') + return + # XXX for some reason calling where() too often hangs the VCR, + # XXX so we insert sleep(0.1) before every sense() call. + self.open_if_closed() + rate = self.getint(self.in_rate_vcr, 1) + rate = max(rate, 1) + self.speed_factor = rate + addr = self.vcr.sense() + if not self.single_capture(): + return + print 'captured %02d:%02d:%02d:%02d' % self.vcr.addr2tc(addr) + count = self.getint(self.in_nframes_vcr, 1) - 1 + if count <= 0: + while rate > 0: + if not self.vcr.step(): + self.vcr_error('step failed') + here = self.vcr.sense() + if here > addr: + rate = rate - (here - addr) + addr = here + return + if not self.vcr.fwdshuttle(2): # one tenth speed + self.vcr_error('fwd shuttle failed') + return + cycle = 0 + while count > 0: + time.sleep(0.1) + try: + here = self.vcr.sense() + except VCR.error, msg: + self.vcr_error(msg) break + if here <> addr: + if here <> addr+1: + print 'Missed', here-addr-1, + print 'frame' + 's'*(here-addr-1 <> 1) + cycle = (cycle+1) % rate + if cycle == 0: + if not self.single_capture(): + break + print 'captured %02d:%02d:%02d:%02d' \ + % self.vcr.addr2tc(here) + count = count -1 + addr = here + if self.vcr and not self.vcr.still(): + self.vcr_error('still failed') + + def vcr_error(self, msg): + self.reset() + fl.show_message('VCR error:', str(msg), '') # Init/end continuous capture mode @@ -551,12 +605,14 @@ class VideoBagOfTricks: vout.writeheader() self.vout = vout self.nframes = 0 + self.speed_factor = 1 self.t_nframes.label = `self.nframes` def write_frame(self, t, data): + t = t * self.speed_factor if not self.vout: gl.ringbell() - return + return 0 if self.convertor: data = self.convertor(data, len(data), 1) elif self.mono: @@ -570,6 +626,7 @@ class VideoBagOfTricks: try: self.vout.writeframe(int(t), data, None) except IOError, msg: + self.reset() if msg == (0, 'Error 0'): msg = 'disk full??' fl.show_message('IOError', str(msg), '') diff --git a/Demo/sgi/video/VbForm.fd b/Demo/sgi/video/VbForm.fd index 1c0be37..ef58488 100644 --- a/Demo/sgi/video/VbForm.fd +++ b/Demo/sgi/video/VbForm.fd @@ -29,7 +29,7 @@ argument: -------------------- class: 11 type: 5 -box: 330.000000 170.000000 110.000015 60.000004 +box: 330.000000 130.000000 110.000015 60.000004 boxtype: 1 colors: 47 47 alignment: 4 @@ -89,7 +89,7 @@ argument: 0 -------------------- class: 11 type: 0 -box: 330.000000 90.000000 110.000000 30.000000 +box: 330.000000 200.000000 110.000000 30.000000 boxtype: 1 colors: 47 47 alignment: 4 @@ -419,7 +419,7 @@ argument: -------------------- class: 2 type: 0 -box: 390.000000 130.000000 50.000000 30.000002 +box: 390.000000 90.000000 50.000000 30.000002 boxtype: 2 colors: 47 47 alignment: 2 @@ -434,7 +434,7 @@ argument: -------------------- class: 2 type: 0 -box: 320.000000 130.000000 60.000000 30.000000 +box: 320.000000 90.000000 60.000000 30.000000 boxtype: 0 colors: 47 47 alignment: 2 @@ -451,7 +451,7 @@ class: 10000 type: 0 box: 0.000000 0.000000 0.000000 0.000000 boxtype: 0 -colors: 0 0 +colors: 1147496041 1852404841 alignment: 4 style: 0 size: 11.000000 @@ -478,7 +478,7 @@ argument: 0 -------------------- class: 31 -type: 1 +type: 2 box: 220.000000 170.000000 100.000000 30.000000 boxtype: 2 colors: 13 5 @@ -486,9 +486,9 @@ alignment: 0 style: 0 size: 11.000000 lcol: 0 -label: Delay: -name: in_sleeptime -callback: cb_sleeptime +label: Sample rate: +name: in_rate_vcr +callback: cb_rate_vcr argument: 0 -------------------- @@ -496,7 +496,7 @@ class: 20000 type: 0 box: 0.000000 0.000000 0.000000 0.000000 boxtype: 0 -colors: 0 0 +colors: 544171552 1331849829 alignment: 4 style: 0 size: 11.000000 |