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