mirror of https://github.com/python/cpython
New program: Video Bag Of Tricks. Will eventually replace Vrec and
Vrecb. Has a user interface dialog to set options etc.
This commit is contained in:
Guido van Rossum
parent
acbe8da4f8
commit
b7e3cc12e1
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@ -0,0 +1,300 @@
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#! /ufs/guido/bin/sgi/python
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# Video bag-of-tricks
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import sys
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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"
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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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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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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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formats = ['rgb24', 'rgb8', 'grey8', 'grey4', 'grey2', \
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'grey2_dith', 'mono_dith', 'mono_thresh']
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formatmap = {'rgb24': 'rgb', 'grey8': 'grey'}
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class VideoBagOfTricks:
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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.setdefaults()
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self.openvideo()
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self.makewindow()
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self.bindvideo()
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self.capturing = 0
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self.b_stop.hide_object()
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self.form.show_form(FL.PLACE_SIZE, FL.TRUE, \
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'Video Bag Of Tricks')
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fl.set_event_call_back(self.do_event)
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return self
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def setwatch(self):
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gl.winset(self.form.window)
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gl.setcursor(WATCH, 0, 0)
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def setarrow(self):
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gl.winset(self.form.window)
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gl.setcursor(ARROW, 0, 0)
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def setdefaults(self):
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self.format = 'rgb8'
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self.c_format.clear_choice()
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for label in formats:
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self.c_format.addto_choice(label)
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self.c_format.set_choice(1 + formats.index(self.format))
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self.mono_thresh = 128
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self.mono_use_thresh = 0
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self.b_drop.set_button(1)
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self.b_burst.set_button(0)
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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_file.set_input('film.video')
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def openvideo(self):
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self.video = sv.OpenVideo()
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param = [SV.BROADCAST, 0]
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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 settitle(self):
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gl.winset(self.window)
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gl.wintitle(self.maketitle())
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def bindvideo(self):
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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.getformat()[:3] == '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 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.cb_quit()
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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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def cb_format(self, *args):
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i = self.c_format.get_choice()
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label = format = formats[i-1]
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if '_' in format:
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i = string.find(format, '_')
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format = format[:i]
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if formatmap.has_key(format):
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format = formatmap[format]
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self.format = format
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#
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if label == 'mono_thresh':
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self.mono_use_thresh = 1
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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( \
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'Bad input, using ' + \
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`self.mono_thresh`)
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else:
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self.mono_use_thresh = 0
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#
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self.rebindvideo()
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def getformat(self):
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return self.format
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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_burst(self, *args):
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pass
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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_file(self, *args):
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filename = self.in_file.get_input()
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if filename == '':
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filename = 'film.video'
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self.in_file.set_input(filename)
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self.settitle()
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def cb_open(self, *args):
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filename = self.in_file.get_input()
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hd, tl = os.path.split(filename)
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filename = fl.file_selector('Select file:', hd, '', tl)
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if filename:
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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.in_file.set_input(filename)
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self.cb_file()
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def cb_play(self, *args):
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filename = self.in_file.get_input()
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sts = os.system('Vplay -q ' + filename + ' &')
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def cb_stop(self, *args):
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if self.capturing:
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raise StopCapture
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gl.ringbell()
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def cb_capture(self, *args):
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self.setwatch()
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self.cb_file() # Make sure filename is OK
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filename = self.in_file.get_input()
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format = self.getformat()
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vout = VFile.VoutFile().init(filename)
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vout.setformat(format)
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gl.winset(self.window)
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x, y = gl.getsize()
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vout.setsize(x, y)
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vout.writeheader()
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convertor = None
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if format[:4] == 'grey':
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s = format[4:]
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if s:
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greybits = string.atoi(s)
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else:
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greybits = 8
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# XXX Should get this from somewhere else?
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if greybits == 2:
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convertor = imageop.grey2grey2
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elif greybits == 4:
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convertor = imageop.grey2grey4
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elif greybits == -2:
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convertor = imageop.dither2grey2
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vformat = SV.RGB8_FRAMES
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qsize = 0
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rate = eval(self.in_rate.get_input())
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info = (vformat, x, y, qsize, rate)
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ids = []
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tpf = 50
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self.video.InitContinuousCapture(info)
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self.capturing = 1
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self.setarrow()
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self.b_stop.show_object()
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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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self.capturing = 0
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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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ids.append(id)
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id = id + 2*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 convertor:
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data = convertor(data, len(data), 1)
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## elif mono and monotreshold >= 0:
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## data = imageop.grey2mono(data, len(data), 1,\
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## monotreshold)
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## elif mono:
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## data = imageop.dither2mono(data, len(data), 1)
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vout.writeframe(t, data, None)
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self.setwatch()
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vout.close()
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self.b_stop.hide_object()
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self.video.EndContinuousCapture()
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self.setarrow()
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def cb_quit(self, *args):
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raise SystemExit, 0
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def maketitle(self):
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x, y = gl.getsize()
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return 'Vb:' + self.in_file.get_input() + ' (%dx%d)' % (x, y)
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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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sys.exit(1)
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@ -0,0 +1,270 @@
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Magic: 12321
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Internal Form Definition File
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(do not change)
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Number of forms: 1
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=============== FORM ===============
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Name: form
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Width: 350.000000
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Height: 240.000000
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Number of Objects: 17
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--------------------
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class: 1
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type: 1
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box: 0.000000 0.000000 350.000000 240.000000
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boxtype: 1
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colors: 47 47
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alignment: 4
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style: 0
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size: 11.000000
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lcol: 0
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label:
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name:
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callback:
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argument:
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--------------------
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class: 1
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type: 2
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box: 140.000000 10.000000 120.000000 160.000000
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boxtype: 2
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colors: 47 47
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alignment: 0
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style: 0
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size: 11.000000
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lcol: 0
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label: Burst mode:
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name:
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callback:
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argument:
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--------------------
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class: 1
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type: 2
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box: 10.000000 10.000000 120.000000 160.000000
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boxtype: 2
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colors: 47 47
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alignment: 0
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style: 0
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size: 11.000000
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lcol: 0
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label: Options:
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name:
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callback:
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argument:
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--------------------
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class: 31
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type: 2
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box: 60.000000 50.000000 40.000000 30.000000
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boxtype: 2
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colors: 13 5
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alignment: 0
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style: 0
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size: 11.000000
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lcol: 0
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label: Capture rate:
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name: in_rate
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callback: cb_rate
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argument: 0
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--------------------
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class: 31
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type: 1
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box: 150.000000 70.000000 100.000000 30.000000
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boxtype: 2
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colors: 13 5
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alignment: 0
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style: 0
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size: 11.000000
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lcol: 0
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label: Max Mbytes:
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name: in_maxmem
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callback: cb_maxmem
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argument: 0
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--------------------
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class: 31
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type: 2
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box: 150.000000 20.000000 100.000000 30.000000
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boxtype: 2
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colors: 13 5
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alignment: 0
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style: 0
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size: 11.000000
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lcol: 0
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label: Nr. of fields:
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name: in_nframes
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callback: cb_nframes
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argument: 0
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--------------------
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class: 12
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type: 1
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box: 150.000000 130.000000 100.000000 30.000000
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boxtype: 1
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colors: 39 3
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alignment: 4
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style: 0
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size: 11.000000
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lcol: 0
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label: Burst mode
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name: b_burst
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callback: cb_burst
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argument: 0
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--------------------
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class: 31
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type: 0
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box: 50.000000 200.000000 209.999985 30.000000
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boxtype: 2
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colors: 13 5
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alignment: 2
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style: 0
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size: 11.000000
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lcol: 0
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label: File:
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name: in_file
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callback: cb_file
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argument: 0
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--------------------
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class: 11
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type: 0
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box: 270.000000 200.000000 70.000000 30.000000
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boxtype: 1
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colors: 47 47
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alignment: 4
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style: 0
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size: 11.000000
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lcol: 0
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label: Open...
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name: b_open
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callback: cb_open
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argument: 0
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--------------------
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class: 11
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type: 0
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box: 270.000000 110.000000 70.000015 60.000004
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boxtype: 1
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||||
colors: 47 47
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alignment: 4
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style: 1
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size: 11.000000
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lcol: 0
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label: Capture
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name: b_capture
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callback: cb_capture
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argument: 0
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--------------------
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class: 13
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type: 1
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||||
box: 20.000000 20.000000 110.000000 30.000000
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||||
boxtype: 0
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||||
colors: 7 3
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||||
alignment: 4
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||||
style: 0
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size: 11.000000
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lcol: 0
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label: "Fielddrop"
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name: b_drop
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callback: cb_drop
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argument: 0
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--------------------
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class: 2
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||||
type: 0
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||||
box: 30.000000 50.000000 30.000000 30.000000
|
||||
boxtype: 0
|
||||
colors: 47 47
|
||||
alignment: 2
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||||
style: 0
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||||
size: 11.000000
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||||
lcol: 0
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label: 1/
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name:
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callback:
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argument:
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--------------------
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||||
class: 2
|
||||
type: 0
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||||
box: 100.000000 50.000000 30.000000 30.000000
|
||||
boxtype: 0
|
||||
colors: 47 47
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||||
alignment: 2
|
||||
style: 0
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size: 11.000000
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lcol: 0
|
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label: fr
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name:
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callback:
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argument:
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|
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--------------------
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class: 11
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||||
type: 0
|
||||
box: 270.000000 10.000000 70.000008 30.000000
|
||||
boxtype: 1
|
||||
colors: 47 47
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||||
alignment: 4
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style: 0
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size: 11.000000
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lcol: 0
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label: Quit
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name: b_quit
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callback: cb_quit
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argument: 0
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||||
|
||||
--------------------
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||||
class: 11
|
||||
type: 0
|
||||
box: 270.000000 60.000000 70.000000 30.000000
|
||||
boxtype: 1
|
||||
colors: 47 47
|
||||
alignment: 4
|
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style: 0
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size: 11.000000
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lcol: 0
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label: Play
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name: b_play
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callback: cb_play
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argument: 0
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||||
|
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--------------------
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class: 42
|
||||
type: 0
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||||
box: 20.000000 110.000000 100.000000 30.000000
|
||||
boxtype: 5
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||||
colors: 7 0
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||||
alignment: 0
|
||||
style: 0
|
||||
size: 11.000000
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||||
lcol: 0
|
||||
label: Video format:
|
||||
name: c_format
|
||||
callback: cb_format
|
||||
argument: 0
|
||||
|
||||
--------------------
|
||||
class: 11
|
||||
type: 0
|
||||
box: 0.000000 0.000000 350.000000 240.000000
|
||||
boxtype: 1
|
||||
colors: 47 47
|
||||
alignment: 4
|
||||
style: 0
|
||||
size: 11.000000
|
||||
lcol: 0
|
||||
label: Stop capture
|
||||
name: b_stop
|
||||
callback: cb_stop
|
||||
argument: 0
|
||||
|
||||
==============================
|
||||
create_the_forms
|
||||
Loading…
Reference in New Issue