def getnextpacket(self): if not self.data or self.dataoffset >= len(self.data): try: cd, id = v.GetCaptureData() except sv.error: return None data = cd.InterleaveFields(1) cd.UnlockCaptureData() if self.justright: self.data = data else: self.data = imageop.crop(data, 1, \ self.realwidth, \ self.realheight, \ self.x0, self.y0, \ self.x1, self.y1) self.lpos = 0 self.dataoffset = 0 if self.type == 'mono': self.data = imageop.dither2mono(self.data, \ self.width, self.height) elif self.type == 'grey2': self.data = imageop.dither2grey2(self.data, \ self.width, self.height) elif self.type == 'grey4': self.data = imageop.grey2grey4(self.data, \ self.width, self.height) data = self.data[self.dataoffset:self.dataoffset+self.pktsize] lpos = self.lpos self.dataoffset = self.dataoffset + self.pktsize self.lpos = self.lpos + self.lpp return lpos, data
def saveframes(vout, queue, done, mono, monotreshold, convertor):
while 1:
x = queue.get()
if not x:
break
data, t = x
if convertor:
data = convertor(data, len(data), 1)
elif mono and monotreshold >= 0:
data = imageop.grey2mono(data, len(data), 1,\
monotreshold)
elif mono:
data = imageop.dither2mono(data, len(data), 1)
vout.writeframe(t, data, None)
sys.stderr.write('Done writing video\n')
vout.close()
done.release_lock()
def saveframes(vout, queue, done, mono, monotreshold, convertor):
while 1:
x = queue.get()
if not x:
break
data, t = x
if convertor:
data = convertor(data, len(data), 1)
elif mono and monotreshold >= 0:
data = imageop.grey2mono(data, len(data), 1,\
monotreshold)
elif mono:
data = imageop.dither2mono(data, len(data), 1)
vout.writeframe(t, data, None)
sys.stderr.write('Done writing video\n')
vout.close()
done.release_lock()
def write_frame(self, t, data):
t = t * self.speed_factor
if not self.vout:
gl.ringbell()
return 0
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:
self.reset()
if msg == (0, 'Error 0'):
msg = 'disk full??'
fl.show_message('IOError', str(msg), '')
return 0
def write_frame(self, t, data):
t = t * self.speed_factor
if not self.vout:
gl.ringbell()
return 0
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:
self.reset()
if msg == (0, 'Error 0'):
msg = 'disk full??'
fl.show_message('IOError', str(msg), '')
return 0
print skipstretch, 'skipped'
skipstretch = 0
okstretch = okstretch + 1
#
# Save field.
# XXXX Works only for fields and top-to-bottom
#
start = frameno*fieldsize
field = data[start:start+fieldsize]
if convertor:
field = convertor(field, len(field), 1)
elif mono and monotreshold >= 0:
field = imageop.grey2mono( \
field, len(field), 1, monotreshold)
elif mono:
field = imageop.dither2mono( \
field, len(field), 1)
realframeno = realframeno + 1
vout.writeframe(int(realframeno*tpf), field, None)
print okstretch, 'ok',
print skipstretch, 'skipped'
print 'Skipped', nskipped, 'duplicate frames'
vout.close()
gl.wintitle('(done) ' + filename)
# Initialize audio recording
AQSIZE = 8*8000 # XXX should be a user option
def initaudio(filename, stop, start, done):
import thread, aifc
afile = aifc.open(filename, 'w')
def main(use_rgbimg=1):
# Create binary test files
uu.decode(get_qualified_path('testrgb' + os.extsep + 'uue'),
'test' + os.extsep + 'rgb')
if use_rgbimg:
image, width, height = getrgbimage('test' + os.extsep + 'rgb')
else:
image, width, height = getimage('test' + os.extsep + 'rgb')
# Return the selected part of image, which should by width by height
# in size and consist of pixels of psize bytes.
if verbose:
print 'crop'
newimage = imageop.crop(image, 4, width, height, 0, 0, 1, 1)
# Return image scaled to size newwidth by newheight. No interpolation
# is done, scaling is done by simple-minded pixel duplication or removal.
# Therefore, computer-generated images or dithered images will
# not look nice after scaling.
if verbose:
print 'scale'
scaleimage = imageop.scale(image, 4, width, height, 1, 1)
# Run a vertical low-pass filter over an image. It does so by computing
# each destination pixel as the average of two vertically-aligned source
# pixels. The main use of this routine is to forestall excessive flicker
# if the image two vertically-aligned source pixels, hence the name.
if verbose:
print 'tovideo'
videoimage = imageop.tovideo(image, 4, width, height)
# Convert an rgb image to an 8 bit rgb
if verbose:
print 'rgb2rgb8'
greyimage = imageop.rgb2rgb8(image, width, height)
# Convert an 8 bit rgb image to a 24 bit rgb image
if verbose:
print 'rgb82rgb'
image = imageop.rgb82rgb(greyimage, width, height)
# Convert an rgb image to an 8 bit greyscale image
if verbose:
print 'rgb2grey'
greyimage = imageop.rgb2grey(image, width, height)
# Convert an 8 bit greyscale image to a 24 bit rgb image
if verbose:
print 'grey2rgb'
image = imageop.grey2rgb(greyimage, width, height)
# Convert a 8-bit deep greyscale image to a 1-bit deep image by
# thresholding all the pixels. The resulting image is tightly packed
# and is probably only useful as an argument to mono2grey.
if verbose:
print 'grey2mono'
monoimage = imageop.grey2mono(greyimage, width, height, 0)
# monoimage, width, height = getimage('monotest.rgb')
# Convert a 1-bit monochrome image to an 8 bit greyscale or color image.
# All pixels that are zero-valued on input get value p0 on output and
# all one-value input pixels get value p1 on output. To convert a
# monochrome black-and-white image to greyscale pass the values 0 and
# 255 respectively.
if verbose:
print 'mono2grey'
greyimage = imageop.mono2grey(monoimage, width, height, 0, 255)
# Convert an 8-bit greyscale image to a 1-bit monochrome image using a
# (simple-minded) dithering algorithm.
if verbose:
print 'dither2mono'
monoimage = imageop.dither2mono(greyimage, width, height)
# Convert an 8-bit greyscale image to a 4-bit greyscale image without
# dithering.
if verbose:
print 'grey2grey4'
grey4image = imageop.grey2grey4(greyimage, width, height)
# Convert an 8-bit greyscale image to a 2-bit greyscale image without
# dithering.
if verbose:
print 'grey2grey2'
grey2image = imageop.grey2grey2(greyimage, width, height)
# Convert an 8-bit greyscale image to a 2-bit greyscale image with
# dithering. As for dither2mono, the dithering algorithm is currently
# very simple.
if verbose:
print 'dither2grey2'
grey2image = imageop.dither2grey2(greyimage, width, height)
# Convert a 4-bit greyscale image to an 8-bit greyscale image.
if verbose:
print 'grey42grey'
greyimage = imageop.grey42grey(grey4image, width, height)
# Convert a 2-bit greyscale image to an 8-bit greyscale image.
if verbose:
print 'grey22grey'
image = imageop.grey22grey(grey2image, width, height)
# Cleanup
unlink('test' + os.extsep + 'rgb')
if frameno <> 0 and \
bitvec[frameno] == bitvec[frameno-1]:
nskipped = nskipped + 1
continue
#
# Save field.
# XXXX Works only for fields and top-to-bottom
#
start = frameno * fieldsize
field = data[start:start + fieldsize]
if convertor:
field = convertor(field, x, y)
elif mono and monotreshold >= 0:
field = imageop.grey2mono(field, x, y, \
1, monotreshold)
elif mono:
field = imageop.dither2mono(field, x, y)
vout.writeframe(int(realframeno * tpf), field, None)
print 'Skipped', nskipped, 'duplicate frames'
vout.close()
gl.wintitle('(done) ' + filename)
# Don't forget to call the main program
try:
main()
except KeyboardInterrupt:
print '[Interrupt]'
#! /usr/bin/env python
def main(use_rgbimg=1):
# Create binary test files
uu.decode(get_qualified_path('testrgb'+os.extsep+'uue'), 'test'+os.extsep+'rgb')
if use_rgbimg:
image, width, height = getrgbimage('test'+os.extsep+'rgb')
else:
image, width, height = getimage('test'+os.extsep+'rgb')
# Return the selected part of image, which should by width by height
# in size and consist of pixels of psize bytes.
if verbose:
print 'crop'
newimage = imageop.crop (image, 4, width, height, 0, 0, 1, 1)
# Return image scaled to size newwidth by newheight. No interpolation
# is done, scaling is done by simple-minded pixel duplication or removal.
# Therefore, computer-generated images or dithered images will
# not look nice after scaling.
if verbose:
print 'scale'
scaleimage = imageop.scale(image, 4, width, height, 1, 1)
# Run a vertical low-pass filter over an image. It does so by computing
# each destination pixel as the average of two vertically-aligned source
# pixels. The main use of this routine is to forestall excessive flicker
# if the image two vertically-aligned source pixels, hence the name.
if verbose:
print 'tovideo'
videoimage = imageop.tovideo (image, 4, width, height)
# Convert an rgb image to an 8 bit rgb
if verbose:
print 'rgb2rgb8'
greyimage = imageop.rgb2rgb8(image, width, height)
# Convert an 8 bit rgb image to a 24 bit rgb image
if verbose:
print 'rgb82rgb'
image = imageop.rgb82rgb(greyimage, width, height)
# Convert an rgb image to an 8 bit greyscale image
if verbose:
print 'rgb2grey'
greyimage = imageop.rgb2grey(image, width, height)
# Convert an 8 bit greyscale image to a 24 bit rgb image
if verbose:
print 'grey2rgb'
image = imageop.grey2rgb(greyimage, width, height)
# Convert a 8-bit deep greyscale image to a 1-bit deep image by
# thresholding all the pixels. The resulting image is tightly packed
# and is probably only useful as an argument to mono2grey.
if verbose:
print 'grey2mono'
monoimage = imageop.grey2mono (greyimage, width, height, 0)
# monoimage, width, height = getimage('monotest.rgb')
# Convert a 1-bit monochrome image to an 8 bit greyscale or color image.
# All pixels that are zero-valued on input get value p0 on output and
# all one-value input pixels get value p1 on output. To convert a
# monochrome black-and-white image to greyscale pass the values 0 and
# 255 respectively.
if verbose:
print 'mono2grey'
greyimage = imageop.mono2grey (monoimage, width, height, 0, 255)
# Convert an 8-bit greyscale image to a 1-bit monochrome image using a
# (simple-minded) dithering algorithm.
if verbose:
print 'dither2mono'
monoimage = imageop.dither2mono (greyimage, width, height)
# Convert an 8-bit greyscale image to a 4-bit greyscale image without
# dithering.
if verbose:
print 'grey2grey4'
grey4image = imageop.grey2grey4 (greyimage, width, height)
# Convert an 8-bit greyscale image to a 2-bit greyscale image without
# dithering.
if verbose:
print 'grey2grey2'
grey2image = imageop.grey2grey2 (greyimage, width, height)
# Convert an 8-bit greyscale image to a 2-bit greyscale image with
# dithering. As for dither2mono, the dithering algorithm is currently
# very simple.
if verbose:
print 'dither2grey2'
grey2image = imageop.dither2grey2 (greyimage, width, height)
# Convert a 4-bit greyscale image to an 8-bit greyscale image.
if verbose:
print 'grey42grey'
greyimage = imageop.grey42grey (grey4image, width, height)
# Convert a 2-bit greyscale image to an 8-bit greyscale image.
if verbose:
print 'grey22grey'
image = imageop.grey22grey (grey2image, width, height)
# Cleanup
unlink('test'+os.extsep+'rgb')
#! /usr/bin/env python
#! /usr/bin/env python
# Copy a video file, interactively, frame-by-frame.
import sys
import getopt
from gl import *
from DEVICE import *
import VFile
import VGrabber
import string
import imageop
def report(time, iframe):
print 'Frame', iframe, ': t =', time
def usage():
sys.stderr.write(
'usage: Vcopy [-t type] [-m threshold] [-a] infile outfile\n')
sys.stderr.write('-t Convert to other type\n')
sys.stderr.write('-a Automatic\n')
sys.stderr.write('-m Convert grey to mono with threshold\n')
sys.stderr.write('-d Convert grey to mono with dithering\n')
sys.exit(2)
def help():
print 'Command summary:'
print 'n get next image from input'
print 'w write current image to output'
class GrabbingVoutFile(VFile.VoutFile, VGrabber.VGrabber):
pass
print skipstretch, 'skipped'
skipstretch = 0
okstretch = okstretch + 1
#
# Save field.
# XXXX Works only for fields and top-to-bottom
#
start = frameno * fieldsize
field = data[start:start + fieldsize]
if convertor:
field = convertor(field, len(field), 1)
elif mono and monotreshold >= 0:
field = imageop.grey2mono( \
field, len(field), 1, monotreshold)
elif mono:
field = imageop.dither2mono( \
field, len(field), 1)
realframeno = realframeno + 1
vout.writeframe(int(realframeno * tpf), field, None)
print okstretch, 'ok',
print skipstretch, 'skipped'
print 'Skipped', nskipped, 'duplicate frames'
vout.close()
gl.wintitle('(done) ' + filename)
# Initialize audio recording
AQSIZE = 8 * 8000 # XXX should be a user option
#! /usr/bin/env python
# Capture a CMIF movie using the Indigo video library and board in burst mode
# User interface:
#
# Start the application. Resize the window to the desired movie size.
# Press the left mouse button to start recording, release it to end
# recording. You can record as many times as you wish, but each time
# you overwrite the output file(s), so only the last recording is
# kept.
#
# Press ESC or select the window manager Quit or Close window option
# to quit. If you quit before recording anything, the output file(s)
# are not touched.
import sys
sys.path.append('/ufs/guido/src/video')
import sv, SV
import VFile
import gl, GL, DEVICE
import al, AL
import time
import posix
import getopt
import string
import imageop
import sgi
# Usage and help functions (keep this up-to-date if you change the program!)
def usage():
#! /usr/bin/env python
# Copy a video file, interactively, frame-by-frame.
import sys
import getopt
from gl import *
from DEVICE import *
import VFile
import VGrabber
import string
import imageop
def report(time, iframe):
print 'Frame', iframe, ': t =', time
def usage():
sys.stderr.write('usage: Vcopy [-t type] [-m threshold] [-a] infile outfile\n')
sys.stderr.write('-t Convert to other type\n')
sys.stderr.write('-a Automatic\n')
sys.stderr.write('-m Convert grey to mono with threshold\n')
sys.stderr.write('-d Convert grey to mono with dithering\n')
sys.exit(2)
def help():
print 'Command summary:'
print 'n get next image from input'
print 'w write current image to output'
class GrabbingVoutFile(VFile.VoutFile, VGrabber.VGrabber):
pass
def main():
foreground()
try:
opts, args = getopt.getopt(sys.argv[1:], 't:am:d')
except getopt.error, msg:
# Live video input class.
if c == 'B': c3i(0,0,255) clear() if c == 'w' or continuous: if use_grabber: try: data, cdata = ofilm.grabframe() except VFile.Error, msg: print msg break if tomono: data = imageop.grey2mono(data, \ ifilm.width, ifilm.height, \ treshold) if tomonodither: data = imageop.dither2mono(data, \ ifilm.width, ifilm.height) ofilm.writeframe(time, data, cdata) print 'Frame', iframe, 'written.' if c == 'n' or continuous: try: time,data,cdata = ifilm.getnextframe() ifilm.showframe(data, cdata) iframe = iframe+1 report(time, iframe) except EOFError: print 'EOF' if continuous: break ringbell() elif dev == INPUTCHANGE: pass
if c == 'B':
c3i(0, 0, 255)
clear()
if c == 'w' or continuous:
if use_grabber:
try:
data, cdata = ofilm.grabframe()
except VFile.Error, msg:
print msg
break
if tomono:
data = imageop.grey2mono(data, \
ifilm.width, ifilm.height, \
treshold)
if tomonodither:
data = imageop.dither2mono(data, \
ifilm.width, ifilm.height)
ofilm.writeframe(time, data, cdata)
print 'Frame', iframe, 'written.'
if c == 'n' or continuous:
try:
time, data, cdata = ifilm.getnextframe()
ifilm.showframe(data, cdata)
iframe = iframe + 1
report(time, iframe)
except EOFError:
print 'EOF'
if continuous:
break
ringbell()
elif dev == INPUTCHANGE:
pass
# Live video input class.
#! /usr/bin/env python
#! /usr/bin/env python
def main():
foreground()
opts, args = getopt.getopt(sys.argv[1:], 't:am:d')
if len(args) <> 2:
usage()
[ifile, ofile] = args
print 'open film ', ifile
ifilm = VFile.VinFile().init(ifile)
print 'open output ', ofile
ofilm = VFile.VoutFile().init(ofile)
ofilm.setinfo(ifilm.getinfo())
use_grabber = 0
continuous = 0
tomono = 0
tomonodither = 0
for o, a in opts:
if o == '-t':
ofilm.format = a
use_grabber = 1
if o == '-a':
continuous = 1
if o == '-m':
if ifilm.format <> 'grey':
print '-m only supported for greyscale'
sys.exit(1)
tomono = 1
treshold = string.atoi(a)
ofilm.format = 'mono'
if o == '-d':
if ifilm.format <> 'grey':
print '-m only supported for greyscale'
sys.exit(1)
tomonodither = 1
ofilm.format = 'mono'
ofilm.writeheader()
#
prefsize(ifilm.width, ifilm.height)
w = winopen(ifile)
qdevice(KEYBD)
qdevice(ESCKEY)
qdevice(WINQUIT)
qdevice(WINSHUT)
print 'qdevice calls done'
#
help()
#
time, data, cdata = ifilm.getnextframe()
ifilm.showframe(data, cdata)
iframe = 1
report(time, iframe)
#
while 1:
if continuous:
dev = KEYBD
else:
dev, val = qread()
if dev in (ESCKEY, WINQUIT, WINSHUT):
break
if dev == REDRAW:
reshapeviewport()
elif dev == KEYBD:
if continuous:
c = '0'
else:
c = chr(val)
#XXX Debug
if c == 'R':
c3i(255, 0, 0)
clear()
if c == 'G':
c3i(0, 255, 0)
clear()
if c == 'B':
c3i(0, 0, 255)
clear()
if c == 'w' or continuous:
if use_grabber:
data, cdata = ofilm.grabframe()
if tomono:
data = imageop.grey2mono(data, \
ifilm.width, ifilm.height, \
treshold)
if tomonodither:
data = imageop.dither2mono(data, \
ifilm.width, ifilm.height)
ofilm.writeframe(time, data, cdata)
print 'Frame', iframe, 'written.'
if c == 'n' or continuous:
try:
time, data, cdata = ifilm.getnextframe()
ifilm.showframe(data, cdata)
iframe = iframe + 1
report(time, iframe)
except EOFError:
print 'EOF'
if continuous:
break
ringbell()
elif dev == INPUTCHANGE:
pass
else:
print '(dev, val) =', (dev, val)
ofilm.close()
#! /usr/bin/env python
#! /usr/bin/env python
# Capture a CMIF movie using the Indigo video library and board in burst mode
# User interface:
#
# Start the application. Resize the window to the desired movie size.
# Press the left mouse button to start recording, release it to end
# recording. You can record as many times as you wish, but each time
# you overwrite the output file(s), so only the last recording is
# kept.
#
# Press ESC or select the window manager Quit or Close window option
# to quit. If you quit before recording anything, the output file(s)
# are not touched.
import sys
sys.path.append('/ufs/guido/src/video')
import sv, SV
import VFile
import gl, GL, DEVICE
import al, AL
import time
import posix
import getopt
import string
import imageop
import sgi
# Usage and help functions (keep this up-to-date if you change the program!)
def usage():
print 'Usage: Vrecb [options] [moviefile [audiofile]]'
print
