From ff3da0502f6b866930b794d971ba5e9daeb594c5 Mon Sep 17 00:00:00 2001
From: Guido van Rossum <guido@python.org>
Date: Wed, 9 Dec 1992 22:16:35 +0000
Subject: [PATCH] Microscopic changes, comments/messages changed. Real
 important: turn off FIELDDROP in Vrec.

---
 Demo/sgi/video/README   | 15 +++++++++------
 Demo/sgi/video/VFile.py |  2 ++
 Demo/sgi/video/Vplay.py |  2 --
 Demo/sgi/video/Vrec.py  |  5 +++++
 Demo/sgi/video/Vsend.py |  2 +-
 5 files changed, 17 insertions(+), 9 deletions(-)

diff --git a/Demo/sgi/video/README b/Demo/sgi/video/README
index 071ca9b4c96..3f54cf5d322 100644
--- a/Demo/sgi/video/README
+++ b/Demo/sgi/video/README
@@ -61,6 +61,9 @@ Vmkjpeg.py	compress an rgb or grey video file to jpeg[grey] format
 
 Vunjpeg.py	expand a jpeg[grey] video file to rgb or grey format
 
+Vfix.py		truncate the scan line width of a video file to
+		a multiple of 4 ('grey' images only)
+
 Vedit.py	interactive video editing program
 
 Vsend.py	unicast or multicast live video as UDP packets
@@ -80,7 +83,10 @@ LiveVideoOut.py	live video output class, used by Vsend and Vreceive
 
 
 The following are C programs, either for efficiency or because they
-need to link with a C library:
+need to link with a C library.  (These probably don't work any more
+since the video file format has changed several times since they were
+written.  Also, they can now be recoded in Python using the 'imageop'
+and 'imgfile' modules.)
 
 squash.c	make a movie smaller by averaging pixels
 		usage: squash factor [bits] <moviefile >newmoviefile
@@ -104,9 +110,8 @@ These programs are obsolete, but kept around for sentimental reasons.
 Most either don't work any more because they don't use VFile and hence
 haven't followed the frequent changes in the CMIF video file format;
 or they are dependent upon hardware we don't have (SGI's previous
-generation framegrabber).  Except for cam.py / tv.py, their
-functionality is present in the suite of programs whose name begins
-with 'V' listed above.
+generation framegrabber).  Anyway, their functionality is present in
+the suite of programs whose name begins with 'V' listed above.
 
 cam.py		network real-time tv broadcast; see tv.py
 		usage: cam [packfactor [host]]
@@ -158,5 +163,3 @@ vinfo.py	print summary of movie file(s)
 vpregs.py	definition of VP registers
 
 vtime.py	virtual time module imported by syncaudio.py and camcorder.py
-
-colorsys.py	color system conversions (now part of std python lib)
diff --git a/Demo/sgi/video/VFile.py b/Demo/sgi/video/VFile.py
index 6443fb66efa..a5d1d92aa3a 100755
--- a/Demo/sgi/video/VFile.py
+++ b/Demo/sgi/video/VFile.py
@@ -538,6 +538,8 @@ def readfileheader(fp, filename):
 			format, rest = eval(line[:-1])
 		except:
 			raise Error, filename + ': Bad 3.0 color info'
+		if format == 'xrgb8':
+			format = 'rgb8' # rgb8 upside-down, for X
 		if format in ('rgb', 'jpeg'):
 			c0bits = c1bits = c2bits = 0
 			chrompack = 0
diff --git a/Demo/sgi/video/Vplay.py b/Demo/sgi/video/Vplay.py
index 4fe13c5995a..4a51c6e394a 100755
--- a/Demo/sgi/video/Vplay.py
+++ b/Demo/sgi/video/Vplay.py
@@ -1,6 +1,4 @@
-#! /ufs/guido/bin/sgi/python-405
 #! /ufs/guido/bin/sgi/python
-#! /usr/local/python
 
 # Play CMIF movie files
 
diff --git a/Demo/sgi/video/Vrec.py b/Demo/sgi/video/Vrec.py
index 867c404047f..69b0102f4ce 100755
--- a/Demo/sgi/video/Vrec.py
+++ b/Demo/sgi/video/Vrec.py
@@ -123,6 +123,11 @@ def main():
 	print x, 'x', y
 
 	v.SetSize(x, y)
+
+	# VERY IMPORTANT (for PAL at least): don't drop fields!
+	param = [SV.FIELDDROP, 0]
+	v.SetParam(param)
+
 	v.BindGLWindow(win, SV.IN_REPLACE)
 
 	gl.qdevice(DEVICE.LEFTMOUSE)
diff --git a/Demo/sgi/video/Vsend.py b/Demo/sgi/video/Vsend.py
index 54554c2fc20..888a3665f99 100755
--- a/Demo/sgi/video/Vsend.py
+++ b/Demo/sgi/video/Vsend.py
@@ -74,7 +74,7 @@ def main():
 		hosts.append(gethostbyname(DEFMCAST))
 
 	if not LiveVideoIn.have_video:
-		print 'Sorry, no video available (use python-405 on roos)'
+		print 'Sorry, no video available (use python-405)'
 		sys.exit(1)
 
 	gl.foreground()