Renamed Vrecc to Vrecb (*b*urst mode capture).
This commit is contained in:
Guido van Rossum
parent
6bc8c7f3e2
commit
6e0e668d1c
|
|
@ -0,0 +1,281 @@
|
|||
#! /ufs/guido/bin/sgi/python-405
|
||||
#! /ufs/guido/bin/sgi/python
|
||||
|
||||
# Capture a continuous CMIF movie using the Indigo video library and board
|
||||
|
||||
|
||||
# Usage:
|
||||
#
|
||||
# makemovie [-r rate] [-w width] [moviefile]
|
||||
|
||||
|
||||
# Options:
|
||||
#
|
||||
# -r rate : capture 1 out of every 'rate' frames (default 1)
|
||||
# -w width : initial window width (default interactive placement)
|
||||
# -d : drop fields if needed
|
||||
# -g bits : greyscale (2, 4 or 8 bits)
|
||||
# -G : 2-bit greyscale dithered
|
||||
# -m : monochrome dithered
|
||||
# -M value : monochrome tresholded with value
|
||||
# -f : Capture fields (in stead of frames)
|
||||
# -n number : Capture 'number' fields (default 60)
|
||||
#
|
||||
# moviefile : here goes the movie data (default film.video);
|
||||
# the format is documented in cmif-film.ms
|
||||
|
||||
|
||||
# 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
|
||||
|
||||
# Main program
|
||||
|
||||
def main():
|
||||
format = SV.RGB8_FRAMES
|
||||
rate = 1
|
||||
width = 0
|
||||
drop = 0
|
||||
mono = 0
|
||||
grey = 0
|
||||
greybits = 0
|
||||
monotreshold = -1
|
||||
fields = 0
|
||||
number = 60
|
||||
|
||||
opts, args = getopt.getopt(sys.argv[1:], 'r:w:dg:mM:Gfn:')
|
||||
for opt, arg in opts:
|
||||
if opt == '-r':
|
||||
rate = string.atoi(arg)
|
||||
if rate < 2:
|
||||
sys.stderr.write('-r rate must be >= 2\n')
|
||||
sys.exit(2)
|
||||
elif opt == '-w':
|
||||
width = string.atoi(arg)
|
||||
elif opt == '-d':
|
||||
drop = 1
|
||||
elif opt == '-g':
|
||||
grey = 1
|
||||
greybits = string.atoi(arg)
|
||||
if not greybits in (2,4,8):
|
||||
print 'Only 2, 4 or 8 bit greyscale supported'
|
||||
elif opt == '-G':
|
||||
grey = 1
|
||||
greybits = -2
|
||||
elif opt == '-m':
|
||||
mono = 1
|
||||
elif opt == '-M':
|
||||
mono = 1
|
||||
monotreshold = string.atoi(arg)
|
||||
elif opt == '-f':
|
||||
fields = 1
|
||||
elif opt == '-n':
|
||||
number = string.atoi(arg)
|
||||
|
||||
if args[2:]:
|
||||
sys.stderr.write('usage: Vrec [options] [file]\n')
|
||||
sys.exit(2)
|
||||
|
||||
if args:
|
||||
filename = args[0]
|
||||
else:
|
||||
filename = 'film.video'
|
||||
|
||||
v = sv.OpenVideo()
|
||||
# Determine maximum window size based on signal standard
|
||||
param = [SV.BROADCAST, 0]
|
||||
v.GetParam(param)
|
||||
if param[1] == SV.PAL:
|
||||
x = SV.PAL_XMAX
|
||||
y = SV.PAL_YMAX
|
||||
elif param[1] == SV.NTSC:
|
||||
x = SV.NTSC_XMAX
|
||||
y = SV.NTSC_YMAX
|
||||
else:
|
||||
print 'Unknown video standard', param[1]
|
||||
sys.exit(1)
|
||||
|
||||
gl.foreground()
|
||||
gl.maxsize(x, y)
|
||||
gl.keepaspect(x, y)
|
||||
gl.stepunit(8, 6)
|
||||
if width:
|
||||
gl.prefsize(width, width*3/4)
|
||||
win = gl.winopen(filename)
|
||||
if width:
|
||||
gl.maxsize(x, y)
|
||||
gl.keepaspect(x, y)
|
||||
gl.stepunit(8, 6)
|
||||
gl.winconstraints()
|
||||
x, y = gl.getsize()
|
||||
print x, 'x', y
|
||||
|
||||
v.SetSize(x, y)
|
||||
|
||||
if drop:
|
||||
param = [SV.FIELDDROP, 1, SV.GENLOCK, SV.GENLOCK_OFF]
|
||||
else:
|
||||
param = [SV.FIELDDROP, 0, SV.GENLOCK, SV.GENLOCK_ON]
|
||||
if mono or grey:
|
||||
param = param+[SV.COLOR, SV.MONO, SV.INPUT_BYPASS, 1]
|
||||
else:
|
||||
param = param+[SV.COLOR, SV.DEFAULT_COLOR, SV.INPUT_BYPASS, 0]
|
||||
v.SetParam(param)
|
||||
|
||||
v.BindGLWindow(win, SV.IN_REPLACE)
|
||||
|
||||
gl.qdevice(DEVICE.LEFTMOUSE)
|
||||
gl.qdevice(DEVICE.WINQUIT)
|
||||
gl.qdevice(DEVICE.WINSHUT)
|
||||
gl.qdevice(DEVICE.ESCKEY)
|
||||
|
||||
print 'Press left mouse to start recording'
|
||||
|
||||
while 1:
|
||||
dev, val = gl.qread()
|
||||
if dev == DEVICE.LEFTMOUSE:
|
||||
if val == 1:
|
||||
info = format, x, y, number, rate
|
||||
record(v, info, filename, mono, grey, \
|
||||
greybits, monotreshold, fields)
|
||||
elif dev == DEVICE.REDRAW:
|
||||
# Window resize (or move)
|
||||
x, y = gl.getsize()
|
||||
print x, 'x', y
|
||||
v.SetSize(x, y)
|
||||
v.BindGLWindow(win, SV.IN_REPLACE)
|
||||
elif dev in (DEVICE.ESCKEY, DEVICE.WINQUIT, DEVICE.WINSHUT):
|
||||
# Quit
|
||||
v.CloseVideo()
|
||||
gl.winclose(win)
|
||||
break
|
||||
|
||||
|
||||
# Record until the mouse is released (or any other GL event)
|
||||
# XXX audio not yet supported
|
||||
|
||||
def record(v, info, filename, mono, grey, greybits, monotreshold, fields):
|
||||
import thread
|
||||
format, x, y, number, rate = info
|
||||
fps = 59.64 # Fields per second
|
||||
# XXX (Strange: need fps of Indigo monitor, not of PAL or NTSC!)
|
||||
tpf = 1000.0 / fps # Time per field in msec
|
||||
#
|
||||
# Go grab
|
||||
#
|
||||
gl.wintitle('(rec) ' + filename)
|
||||
try:
|
||||
ninfo, data, bitvec = v.CaptureBurst(info)
|
||||
except sv.error, arg:
|
||||
print 'CaptureBurst failed:', arg
|
||||
print 'info:', info
|
||||
gl.wintitle(filename)
|
||||
return
|
||||
gl.wintitle('(save) '+ filename)
|
||||
#
|
||||
# Check results
|
||||
#
|
||||
if info <> ninfo:
|
||||
print 'Sorry, format changed.'
|
||||
print 'Wanted:',info
|
||||
print 'Got :',ninfo
|
||||
gl.wintitle(filename)
|
||||
return
|
||||
# print bitvec
|
||||
if x*y*number <> len(data):
|
||||
print 'Funny data length: wanted',x,'*',y,'*', number,'=',\
|
||||
x*y*number,'got',len(data)
|
||||
gl.wintitle(filename)
|
||||
return
|
||||
#
|
||||
# Save
|
||||
#
|
||||
if filename:
|
||||
#
|
||||
# Construct header and write it
|
||||
#
|
||||
vout = VFile.VoutFile().init(filename)
|
||||
if mono:
|
||||
vout.format = 'mono'
|
||||
elif grey and greybits == 8:
|
||||
vout.format = 'grey'
|
||||
elif grey:
|
||||
vout.format = 'grey'+`abs(greybits)`
|
||||
else:
|
||||
vout.format = 'rgb8'
|
||||
vout.width = x
|
||||
vout.height = y
|
||||
if fields:
|
||||
vout.packfactor = (1,-2)
|
||||
else:
|
||||
print 'Sorry, can only save fields at the moment'
|
||||
gl.wintitle(filename)
|
||||
return
|
||||
vout.writeheader()
|
||||
#
|
||||
# Compute convertor, if needed
|
||||
#
|
||||
convertor = None
|
||||
if grey:
|
||||
if greybits == 2:
|
||||
convertor = imageop.grey2grey2
|
||||
elif greybits == 4:
|
||||
convertor = imageop.grey2grey4
|
||||
elif greybits == -2:
|
||||
convertor = imageop.dither2grey2
|
||||
fieldsize = x*y/2
|
||||
nskipped = 0
|
||||
realframeno = 0
|
||||
tpf = 1000 / 50.0 #XXXX
|
||||
for frameno in range(0, number*2):
|
||||
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]'
|
||||
Loading…
Reference in New Issue