Created Vedit.py, the video editor. This uses the classes in Viewer.py.
Viewer.py in turn requires changes to VFile.py (unfortunately that file
is now a complete mess...).
diff --git a/Demo/sgi/video/Vedit.py b/Demo/sgi/video/Vedit.py
new file mode 100755
index 0000000..fa8631a
--- /dev/null
+++ b/Demo/sgi/video/Vedit.py
@@ -0,0 +1,247 @@
+#! /ufs/guido/bin/sgi/python
+
+# Edit CMIF movies interactively -- copy one or more files to an output file
+
+
+# Possibilities:
+#
+# - convert between formats (grey, rgb, rgb8, ...)
+# - change size
+# - cut out a given area of the image
+# - change time base (a la Vtime)
+# - skip stretches of frames
+
+
+import sys
+import os
+import gl, GL, DEVICE
+import fl, FL
+import flp
+import Viewer
+import getopt
+import string
+
+
+def main():
+ qsize = 20
+ opts, args = getopt.getopt(sys.argv[1:], 'q:')
+ for o, a in opts:
+ if o == '-q':
+ qsize = string.atoi(a)
+ ed = Editor().init(qsize)
+ if args[0:]:
+ ed.open_input(args[0])
+ if args[1:]:
+ ed.open_output(args[1])
+ while 1:
+ dummy = fl.do_forms()
+
+
+class Editor:
+
+ def init(self, qsize):
+ self.qsize = qsize
+ self.vin = None
+ self.vout = None
+ self.ifile = ''
+ self.ofile = ''
+ formdef = flp.parse_form('VeditForm', 'form')
+ flp.create_full_form(self, formdef)
+ self.form.show_form(FL.PLACE_SIZE, FL.TRUE, 'Vedit')
+ fl.set_event_call_back(self.do_event)
+ return self
+
+ def do_event(self, (dev, val)):
+ if dev == DEVICE.REDRAW:
+ if self.vin:
+ self.vin.redraw(val)
+ if self.vout:
+ self.vout.redraw(val)
+
+
+ def iocheck(self):
+ self.msg('')
+ if self.vin == None and self.vout == None:
+ self.err('Please open input and output files first')
+ return 0
+ return self.icheck() and self.ocheck()
+
+ def icheck(self):
+ self.msg('')
+ if self.vin == None:
+ self.err('Please open an input file first')
+ return 0
+ return 1
+
+ def ocheck(self):
+ self.msg('')
+ if self.vout == None:
+ self.err('Please open an output file first')
+ return 0
+ return 1
+
+
+ def cb_in_new(self, args):
+ self.msg('')
+ hd, tl = os.path.split(self.ifile)
+ filename = fl.file_selector('Input video file', hd, '', tl)
+ if not filename: return
+ self.open_input(filename)
+
+ def cb_in_close(self, args):
+ self.msg('')
+ self.close_input()
+
+ def cb_in_skip(self, args):
+ if not self.icheck(): return
+ if not self.vin.get(): self.err('End of input file')
+ self.ishow()
+
+ def cb_in_back(self, args):
+ if not self.icheck(): return
+ if not self.vin.backup(): self.err('Input buffer exhausted')
+ self.ishow()
+
+ def cb_in_rewind(self, args):
+ if not self.icheck(): return
+ self.vin.rewind()
+ self.ishow()
+
+
+ def cb_copy(self, args):
+ if not self.iocheck(): return
+ data = self.vin.get()
+ if data:
+ if self.vout.getinfo() <> self.vin.getinfo():
+ print 'Copying info...'
+ self.vout.setinfo(self.vin.getinfo())
+ self.vout.put(data)
+ self.oshow()
+ self.ishow()
+
+ def cb_uncopy(self, args):
+ if not self.iocheck(): return
+ if not self.vout.backup():
+ self.err('Output buffer exhausted')
+ return
+ self.oshow()
+ if not self.vin.backup():
+ self.err('Input buffer exhausted')
+ return
+ self.ishow()
+
+
+ def cb_out_new(self, args):
+ self.msg('')
+ hd, tl = os.path.split(self.ofile)
+ filename = fl.file_selector('Output video file', hd, '', tl)
+ if not filename: return
+ self.open_output(filename)
+
+ def cb_out_close(self, args):
+ self.msg('')
+ self.close_output()
+
+ def cb_out_skip(self, arg):
+ if not self.ocheck(): return
+ if not self.vout.forward(): self.err('Output buffer exhausted')
+ self.oshow()
+
+ def cb_out_back(self, args):
+ if not self.ocheck(): return
+ if not self.vout.backup(): self.err('Output buffer exhausted')
+ self.oshow()
+
+ def cb_out_rewind(self, args):
+ if not self.ocheck(): return
+ self.vout.rewind()
+ self.oshow()
+
+
+ def cb_quit(self, args):
+ self.close_input()
+ self.close_output()
+ sys.exit(0)
+
+
+ def open_input(self, filename):
+ self.ifile = filename
+ basename = os.path.split(filename)[1]
+ title = 'in: ' + basename
+ try:
+ vin = Viewer.InputViewer().init(filename, \
+ title, self.qsize)
+ except:
+ self.err('Can\'t open input file', filename)
+ return
+ self.close_input()
+ self.vin = vin
+ self.in_file.label = basename
+ self.ishow()
+
+ def close_input(self):
+ if self.vin:
+ self.msg('Closing input file...')
+ self.vin.close()
+ self.msg('')
+ self.vin = None
+ self.in_file.label = '(none)'
+ self.format('in')
+
+ def ishow(self):
+ self.vin.show()
+ self.format('in')
+
+ def open_output(self, filename):
+ self.ofile = filename
+ basename = os.path.split(filename)[1]
+ title = 'out: ' + basename
+ try:
+ vout = Viewer.OutputViewer().init(filename, \
+ title, self.qsize)
+ except:
+ self.err('Can\'t open output file', filename)
+ return
+ self.close_output()
+ self.vout = vout
+ self.out_file.label = basename
+ if self.vin:
+ self.vout.setinfo(self.vin.getinfo())
+ self.oshow()
+
+ def close_output(self):
+ if self.vout:
+ self.msg('Closing output file...')
+ self.vout.close()
+ self.msg('')
+ self.vout = None
+ self.out_file.label = '(none)'
+ self.format('out')
+
+ def oshow(self):
+ self.vout.show()
+ self.format('out')
+
+
+ def msg(self, *args):
+ str = string.strip(string.join(args))
+ self.msg_area.label = str
+
+ def err(self, *args):
+ gl.ringbell()
+ apply(self.msg, args)
+
+ def format(self, io):
+ v = getattr(self, 'v' + io)
+ if v == None:
+ left = right = pos = 0
+ else:
+ left, right = v.qsizes()
+ pos = v.tell()
+ left = pos - left
+ right = pos + right
+ getattr(self, io + '_info1').label = `left`
+ getattr(self, io + '_info2').label = `pos`
+ getattr(self, io + '_info3').label = `right`
+
+main()