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https://github.com/python/cpython.git
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c17c84fbe3
Wait for VCR ready and set VCR mode to DNR when initializing VCR. Fix type error in getfloat().
697 lines
16 KiB
Python
Executable file
697 lines
16 KiB
Python
Executable file
#! /ufs/guido/bin/sgi/python
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# Video bag of tricks: record video(+audio) in various formats and modes
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# XXX To do:
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# - audio
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# - improve user interface
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# - help button?
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# - command line options to set initial settings
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# - save settings in a file
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# - ...?
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import sys
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import time
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import getopt
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import string
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import os
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sts = os.system('makemap') # Must be before "import fl" to work
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import sgi
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import gl
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import GL
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import DEVICE
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import fl
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import FL
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import flp
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import watchcursor
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import sv
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import SV
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import VFile
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import VGrabber
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import imageop
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sys.path.append('/ufs/jack/src/av/vcr')
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ARROW = 0
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WATCH = 1
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watchcursor.defwatch(WATCH)
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def main():
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## fl.set_graphics_mode(0, 1)
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vb = VideoBagOfTricks().init()
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while 1:
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dummy = fl.do_forms()
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[dummy]
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StopCapture = 'StopCapture'
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VideoFormatLabels = ['Video off', 'rgb8', 'grey8', 'grey4', 'grey2', \
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'grey2 dith', 'mono dith', 'mono thresh']
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VideoFormats = ['', 'rgb8', 'grey', 'grey4', 'grey2', \
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'grey2', 'mono', 'mono']
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VideoModeLabels = ['Continuous', 'Burst', 'Single frame', 'VCR sync']
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[VM_CONT, VM_BURST, VM_SINGLE, VM_VCR] = range(1, 5)
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AudioFormatLabels = ['Audio off', \
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'16 bit mono', '16 bit stereo', '8 bit mono', '8 bit stereo']
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[A_OFF, A_16_MONO, A_16_STEREO, A_8_MONO, A_8_STEREO] = range(1, 6)
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class VideoBagOfTricks:
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# Init/close stuff
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def init(self):
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formdef = flp.parse_form('VbForm', 'form')
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flp.create_full_form(self, formdef)
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self.g_cont.hide_object()
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self.g_burst.hide_object()
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self.g_single.hide_object()
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self.g_vcr.hide_object()
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self.setdefaults()
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self.openvideo()
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self.makewindow()
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self.bindvideo()
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self.showform()
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fl.set_event_call_back(self.do_event)
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return self
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def close(self):
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self.close_video()
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self.close_audio()
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raise SystemExit, 0
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def showform(self):
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# Get position of video window
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gl.winset(self.window)
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x, y = gl.getorigin()
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width, height = gl.getsize()
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# Calculate position of form window
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x1 = x + width + 10
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x2 = x1 + int(self.form.w) - 1
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y2 = y + height - 1
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y1 = y2 - int(self.form.h) + 1
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# Position and show form window
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gl.prefposition(x1, x2, y1, y2)
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self.form.show_form(FL.PLACE_FREE, FL.TRUE, \
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'Video Bag Of Tricks')
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def setdefaults(self):
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self.vcr = None
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self.vout = None
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self.capturing = 0
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# Video defaults
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self.vfile = 'film.video'
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self.vmode = VM_CONT
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self.mono_thresh = 128
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self.vformat = 'rgb8'
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self.c_vformat.clear_choice()
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for label in VideoFormatLabels:
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self.c_vformat.addto_choice(label)
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self.c_vformat.set_choice(1 + VideoFormats.index(self.vformat))
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self.c_vmode.clear_choice()
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for label in VideoModeLabels:
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self.c_vmode.addto_choice(label)
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self.c_vmode.set_choice(self.vmode)
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self.get_vformat()
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self.b_drop.set_button(1)
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self.in_rate.set_input('2')
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self.in_maxmem.set_input('1.0')
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self.in_nframes.set_input('0')
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self.in_nframes_vcr.set_input('1')
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self.in_sleeptime.set_input('1.0')
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# Audio defaults
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self.aout = None
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self.aport = None
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self.afile = 'film.aiff'
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self.aformat = A_OFF
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self.c_aformat.clear_choice()
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for label in AudioFormatLabels:
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self.c_aformat.addto_choice(label)
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self.c_aformat.set_choice(self.aformat)
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self.get_aformat()
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def openvideo(self):
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try:
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self.video = sv.OpenVideo()
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except sv.error, msg:
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print 'Error opening video:', msg
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self.video = None
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param = [SV.BROADCAST, SV.PAL]
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if self.video: self.video.GetParam(param)
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if param[1] == SV.PAL:
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x = SV.PAL_XMAX
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y = SV.PAL_YMAX
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elif param[1] == SV.NTSC:
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x = SV.NTSC_XMAX
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y = SV.NTSC_YMAX
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else:
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print 'Unknown video standard:', param[1]
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sys.exit(1)
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self.maxx, self.maxy = x, y
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def makewindow(self):
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x, y = self.maxx, self.maxy
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gl.foreground()
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gl.maxsize(x, y)
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gl.keepaspect(x, y)
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gl.stepunit(8, 6)
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width = 256 # XXX
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if width:
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height = width*3/4
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x1 = 150
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x2 = x1 + width-1
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y2 = 768-150
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y1 = y2-height+1
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gl.prefposition(x1, x2, y1, y2)
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self.window = gl.winopen('Vb: initializing')
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self.settitle()
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if width:
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gl.maxsize(x, y)
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gl.keepaspect(x, y)
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gl.stepunit(8, 6)
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gl.winconstraints()
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gl.qdevice(DEVICE.LEFTMOUSE)
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gl.qdevice(DEVICE.WINQUIT)
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gl.qdevice(DEVICE.WINSHUT)
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def bindvideo(self):
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if not self.video: return
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x, y = gl.getsize()
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self.video.SetSize(x, y)
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drop = self.b_drop.get_button()
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if drop:
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param = [SV.FIELDDROP, 1, SV.GENLOCK, SV.GENLOCK_OFF]
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else:
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param = [SV.FIELDDROP, 0, SV.GENLOCK, SV.GENLOCK_ON]
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if self.rgb:
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param = param+[SV.COLOR, SV.DEFAULT_COLOR, \
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SV.DITHER, 1, \
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SV.INPUT_BYPASS, 0]
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else:
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param = param+[SV.COLOR, SV.MONO, SV.DITHER, 0, \
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SV.INPUT_BYPASS, 1]
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self.video.BindGLWindow(self.window, SV.IN_REPLACE)
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self.video.SetParam(param)
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def rebindvideo(self):
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gl.winset(self.window)
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self.bindvideo()
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def reset(self):
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self.close_video()
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self.close_audio()
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# Event handler (catches resize of video window)
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def do_event(self, dev, val):
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#print 'Event:', dev, val
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if dev in (DEVICE.WINSHUT, DEVICE.WINQUIT):
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self.close()
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if dev == DEVICE.REDRAW and val == self.window:
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self.rebindvideo()
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self.settitle()
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# Video controls: format, mode, file
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def cb_vformat(self, *args):
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self.reset()
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self.get_vformat()
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if self.mono_use_thresh:
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s = `self.mono_thresh`
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s = fl.show_input('Please enter mono threshold', s)
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if s:
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try:
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self.mono_thresh = string.atoi(s)
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except string.atoi_error:
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fl.show_message('Bad input, using', \
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`self.mono_thresh`, '')
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self.rebindvideo()
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def cb_vmode(self, *args):
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if self.vcr:
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self.vcr = None
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self.vmode = self.c_vmode.get_choice()
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self.form.freeze_form()
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self.g_cont.hide_object()
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self.g_burst.hide_object()
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self.g_single.hide_object()
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self.g_vcr.hide_object()
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if self.vmode == VM_CONT:
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self.g_cont.show_object()
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elif self.vmode == VM_BURST:
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self.g_burst.show_object()
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elif self.vmode == VM_SINGLE:
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self.g_single.show_object()
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elif self.vmode == VM_VCR:
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self.g_vcr.show_object()
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self.form.unfreeze_form()
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def cb_vfile(self, *args):
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filename = self.vfile
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hd, tl = os.path.split(filename)
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filename = fl.file_selector('Video save file:', hd, '', tl)
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if filename:
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self.reset()
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hd, tl = os.path.split(filename)
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if hd == os.getcwd():
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filename = tl
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self.vfile = filename
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# Video mode specific video controls
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def cb_rate(self, *args):
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pass
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def cb_drop(self, *args):
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self.rebindvideo()
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def cb_maxmem(self, *args):
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pass
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def cb_nframes(self, *args):
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pass
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def cb_fps(self, *args):
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pass
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def cb_nframes_vcr(self, *args):
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pass
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def cb_sleeptime(self, *args):
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pass
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# Audio controls: format, file
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def cb_aformat(self, *args):
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self.get_aformat()
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def cb_afile(self, *args):
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filename = self.afile
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hd, tl = os.path.split(filename)
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filename = fl.file_selector('Audio save file:', hd, '', tl)
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if filename:
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self.reset()
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hd, tl = os.path.split(filename)
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if hd == os.getcwd():
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filename = tl
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self.afile = filename
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# General controls: capture, reset, play, quit
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def cb_capture(self, *args):
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if self.capturing:
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raise StopCapture
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if not self.b_capture.get_button():
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return
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if not self.video or not self.vformat:
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gl.ringbell()
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return
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if self.vmode == VM_CONT:
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self.cont_capture()
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elif self.vmode == VM_BURST:
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self.burst_capture()
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elif self.vmode == VM_SINGLE:
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self.single_capture()
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elif self.vmode == VM_VCR:
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self.vcr_capture()
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def cb_reset(self, *args):
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self.reset()
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def cb_play(self, *args):
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sts = os.system('Vplay -q ' + self.vfile + ' &')
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def cb_quit(self, *args):
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self.close()
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# Capture routines
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def burst_capture(self):
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self.setwatch()
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gl.winset(self.window)
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x, y = gl.getsize()
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vformat = SV.RGB8_FRAMES
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nframes = self.getint(self.in_nframes, 0)
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if nframes == 0:
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maxmem = self.getint(self.in_maxmem, 1.0)
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memsize = int(maxmem * 1024 * 1024)
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nframes = self.calcnframes()
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info = (vformat, x, y, nframes, 1)
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try:
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info2, data, bitvec = self.video.CaptureBurst(info)
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except sv.error, msg:
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self.b_capture.set_button(0)
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self.setarrow()
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fl.show_message('Capture error:', str(msg), '')
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return
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if info <> info2: print info, '<>', info2
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self.save_burst(info2, data, bitvec)
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self.setarrow()
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def calcnframes(self):
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gl.winset(self.window)
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x, y = gl.getsize()
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pixels = x*y
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pixels = pixels/2 # XXX always assume fields
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if self.mono or self.grey:
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n = memsize/pixels
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else:
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n = memsize/(4*pixels)
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return max(1, n)
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def save_burst(self, info, data, bitvec):
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(vformat, x, y, nframes, rate) = info
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self.open_if_closed()
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fieldsize = x*y/2
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nskipped = 0
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realframeno = 0
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tpf = 1000 / 50.0 # XXX
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for frameno in range(0, nframes*2):
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if frameno <> 0 and \
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bitvec[frameno] == bitvec[frameno-1]:
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nskipped = nskipped + 1
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continue
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#
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# Save field.
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# XXX Works only for fields and top-to-bottom
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#
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start = frameno*fieldsize
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field = data[start:start+fieldsize]
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realframeno = realframeno + 1
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fn = int(realframeno*tpf)
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if not self.write_frame(fn, field):
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break
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def cont_capture(self):
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saved_label = self.b_capture.label
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self.b_capture.label = 'Stop\n' + saved_label
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self.open_if_closed()
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self.init_cont()
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fps = 59.64 # Fields per second
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# XXX (fps of Indigo monitor, not of PAL or NTSC!)
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tpf = 1000.0 / fps # Time per field in msec
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self.capturing = 1
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self.start_audio()
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while 1:
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try:
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void = fl.check_forms()
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except StopCapture:
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break
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try:
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cd, id = self.video.GetCaptureData()
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except sv.error:
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sgi.nap(1)
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continue
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id = id + 2*self.rate
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data = cd.InterleaveFields(1)
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cd.UnlockCaptureData()
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t = id*tpf
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if not self.write_frame(t, data):
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break
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self.stop_audio()
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self.capturing = 0
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self.end_cont()
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self.reset()
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self.b_capture.label = saved_label
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def single_capture(self):
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self.open_if_closed()
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self.init_cont()
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while 1:
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try:
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cd, id = self.video.GetCaptureData()
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break
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except sv.error:
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pass
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sgi.nap(1)
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data = cd.InterleaveFields(1)
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cd.UnlockCaptureData()
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self.end_cont()
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t = (self.nframes+1) * (1000/25)
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return self.write_frame(t, data)
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def vcr_capture(self):
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if not self.vcr:
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import VCR
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try:
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self.vcr = VCR.VCR().init()
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self.vcr.wait()
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self.vcr.fmmode('dnr')
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except VCR.error, msg:
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self.vcr = None
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self.b_capture.set_button(0)
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fl.show_message('VCR error', str(msg), '')
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return
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count = self.getint(self.in_nframes_vcr, 1)
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if count <= 0: count = 1
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sleeptime = self.getfloat(self.in_sleeptime, 1.0)
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for i in range(count):
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if i > 0:
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time.sleep(sleeptime)
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if not self.single_capture():
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break
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if not self.vcr.step():
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break
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# Init/end continuous capture mode
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def init_cont(self):
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qsize = 1
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if self.vmode == VM_CONT:
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self.rate = self.getint(self.in_rate, 2)
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else:
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self.rate = 2
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x, y = self.vout.getsize()
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info = (SV.RGB8_FRAMES, x, y, qsize, self.rate)
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info2 = self.video.InitContinuousCapture(info)
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if info2 <> info:
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# XXX This is really only debug info
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print 'Info mismatch: requested', info, 'got', info2
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def end_cont(self):
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self.video.EndContinuousCapture()
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# Misc stuff
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def settitle(self):
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gl.winset(self.window)
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x, y = gl.getsize()
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title = 'Vb:' + self.vfile + ' (%dx%d)' % (x, y)
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gl.wintitle(title)
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def get_vformat(self):
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i = self.c_vformat.get_choice()
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label = VideoFormatLabels[i-1]
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format = VideoFormats[i-1]
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self.vformat = format
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if self.vformat == '':
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self.form.freeze_form()
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self.g_video.hide_object()
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self.g_cont.hide_object()
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self.g_burst.hide_object()
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self.g_single.hide_object()
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self.form.unfreeze_form()
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return
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else:
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self.g_video.show_object()
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if self.vmode == VM_CONT:
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self.g_cont.show_object()
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elif self.vmode == VM_BURST:
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self.g_burst.show_object()
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elif self.vmode == VM_SINGLE:
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self.g_single.show_object()
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#
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self.rgb = (format[:3] == 'rgb')
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self.mono = (format == 'mono')
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self.grey = (format[:4] == 'grey')
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self.mono_use_thresh = (label == 'mono thresh')
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s = format[4:]
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if s:
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self.greybits = string.atoi(s)
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else:
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self.greybits = 8
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if label == 'grey2 dith':
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self.greybits = -2
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#
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convertor = None
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if self.grey:
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if self.greybits == 2:
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convertor = imageop.grey2grey2
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|
elif self.greybits == 4:
|
|
convertor = imageop.grey2grey4
|
|
elif self.greybits == -2:
|
|
convertor = imageop.dither2grey2
|
|
self.convertor = convertor
|
|
|
|
def get_aformat(self):
|
|
self.reset()
|
|
self.aformat = self.c_aformat.get_choice()
|
|
if self.aformat == A_OFF:
|
|
self.g_audio.hide_object()
|
|
else:
|
|
self.g_audio.show_object()
|
|
|
|
def open_if_closed(self):
|
|
if not self.vout:
|
|
self.open_video()
|
|
if not self.aout:
|
|
self.open_audio()
|
|
|
|
# File I/O handling
|
|
|
|
def open_video(self):
|
|
self.close_video()
|
|
gl.winset(self.window)
|
|
x, y = gl.getsize()
|
|
vout = VFile.VoutFile().init(self.vfile)
|
|
vout.setformat(self.vformat)
|
|
vout.setsize(x, y)
|
|
if self.vmode == VM_BURST:
|
|
vout.setpf((1, -2))
|
|
vout.writeheader()
|
|
self.vout = vout
|
|
self.nframes = 0
|
|
self.t_nframes.label = `self.nframes`
|
|
|
|
def write_frame(self, t, data):
|
|
if not self.vout:
|
|
gl.ringbell()
|
|
return
|
|
if self.convertor:
|
|
data = self.convertor(data, len(data), 1)
|
|
elif self.mono:
|
|
if self.mono_use_thresh:
|
|
data = imageop.grey2mono(data, \
|
|
len(data), 1,\
|
|
self.mono_thresh)
|
|
else:
|
|
data = imageop.dither2mono(data, \
|
|
len(data), 1)
|
|
try:
|
|
self.vout.writeframe(int(t), data, None)
|
|
except IOError, msg:
|
|
if msg == (0, 'Error 0'):
|
|
msg = 'disk full??'
|
|
fl.show_message('IOError', str(msg), '')
|
|
return 0
|
|
self.nframes = self.nframes + 1
|
|
self.t_nframes.label = `self.nframes`
|
|
return 1
|
|
|
|
def close_video(self):
|
|
if not self.vout:
|
|
return
|
|
self.nframes = 0
|
|
self.t_nframes.label = ''
|
|
try:
|
|
self.vout.close()
|
|
except IOError, msg:
|
|
if msg == (0, 'Error 0'):
|
|
msg = 'disk full??'
|
|
fl.show_message('IOError', str(msg), '')
|
|
self.vout = None
|
|
|
|
# Watch cursor handling
|
|
|
|
def setwatch(self):
|
|
gl.winset(self.form.window)
|
|
gl.setcursor(WATCH, 0, 0)
|
|
gl.winset(self.window)
|
|
gl.setcursor(WATCH, 0, 0)
|
|
|
|
def setarrow(self):
|
|
gl.winset(self.form.window)
|
|
gl.setcursor(ARROW, 0, 0)
|
|
gl.winset(self.window)
|
|
gl.setcursor(ARROW, 0, 0)
|
|
|
|
# Numeric field handling
|
|
|
|
def getint(self, field, default):
|
|
try:
|
|
value = string.atoi(field.get_input())
|
|
except string.atoi_error:
|
|
value = default
|
|
field.set_input(`value`)
|
|
return value
|
|
|
|
def getfloat(self, field, default):
|
|
try:
|
|
value = float(eval(field.get_input()))
|
|
except:
|
|
value = float(default)
|
|
field.set_input(`value`)
|
|
return value
|
|
|
|
# Audio stuff
|
|
|
|
def open_audio(self):
|
|
if self.aformat == A_OFF:
|
|
return
|
|
import aifc
|
|
import al
|
|
import AL
|
|
import thread
|
|
self.close_audio()
|
|
params = [AL.INPUT_RATE, 0]
|
|
al.getparams(AL.DEFAULT_DEVICE, params)
|
|
rate = params[1]
|
|
self.aout = aifc.open(self.afile, 'w')
|
|
if self.aformat in (A_16_STEREO, A_8_STEREO):
|
|
nch = AL.STEREO
|
|
else:
|
|
nch = AL.MONO
|
|
if self.aformat in (A_16_STEREO, A_16_MONO):
|
|
width = AL.SAMPLE_16
|
|
else:
|
|
width = AL.SAMPLE_8
|
|
self.aout.setnchannels(nch)
|
|
self.aout.setsampwidth(width)
|
|
self.aout.setframerate(rate)
|
|
self.aout.writeframes('')
|
|
c = al.newconfig()
|
|
c.setqueuesize(8000)
|
|
c.setchannels(nch)
|
|
c.setwidth(width)
|
|
self.aport = al.openport('Vb audio record', 'r', c)
|
|
self.audio_stop = 0
|
|
self.audio_ok = 0
|
|
self.audio_busy = 1
|
|
thread.start_new_thread(self.record_audio, ())
|
|
|
|
def start_audio(self):
|
|
if self.aformat == A_OFF:
|
|
return
|
|
self.audio_ok = 1
|
|
|
|
def record_audio(self, *args):
|
|
# This function runs in a separate thread
|
|
# Currently no semaphores are used
|
|
while not self.audio_stop:
|
|
data = self.aport.readsamps(4000)
|
|
if self.audio_ok:
|
|
self.aout.writeframesraw(data)
|
|
data = None
|
|
self.audio_busy = 0
|
|
|
|
def stop_audio(self):
|
|
self.audio_ok = 0
|
|
|
|
def close_audio(self):
|
|
if self.aout:
|
|
self.audio_ok = 0
|
|
self.audio_stop = 1
|
|
while self.audio_busy:
|
|
time.sleep(0.1)
|
|
self.aout.close()
|
|
self.aout = None
|
|
if self.aport:
|
|
self.aport.closeport()
|
|
self.aport = None
|
|
|
|
|
|
try:
|
|
main()
|
|
except KeyboardInterrupt:
|
|
print '[Interrupt]'
|
|
sys.exit(1)
|