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gmov2ppm
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Fri, Nov 1, 02:43

gmov2ppm
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#!/usr/bin/env python
import pNbody
from pNbody import Movie
from pNbody import *
from pNbody.palette import *
import string
from numpy import *
import Image
import ImageDraw
import ImageFont
import ImagePalette
import ImageTk
import ImageFont
import sys
import os
import string
import getopt
import math
import shutil
FONT_PATH = os.path.join(NBODYPATH,'fonts')
FFONT = os.path.join(FONT_PATH,'helvBO10.pil')
####################################################################################
def help_message():
####################################################################################
print '''Usage : gmov2mpeg -f file [options ...]
Options: -h -- this help message
-f -- input file
-o -- output directory
-p -- name of a palette
-z -- zoom factor
-b -- number of initial image
-e -- number of final image
-s -- number of images to leap
-l -- add the label (time)
-i -- gives information on the film
-t -- add a text
--cosmo -- cosmoligical option
--version -- displays version'''
sys.exit(0)
####################################################################################
# info film
####################################################################################
def infofilm(filename) :
f = Movie.Movie(filename)
f.open()
f.info()
####################################################################################
#
# MAIN
#
####################################################################################
try:
options, xarguments = getopt.getopt(sys.argv[1:],'f:o:p:z:d:b:e:s:t:ihlk', ['version','cosmo'])
except getopt.error:
print '''Error: You tried to use an unknown option or
the argument for an option that requires it was missing.
Try `mov2gif -h\' for more information.'''
sys.exit(0)
# examination des options
# h : help message
for a in options[:]:
if a[0] == '-h':
help_message()
zoom = 1.
fname = " "
outdir = "tmp"
color = "ramp"
tinit = 0
tfinal = 0
step = 0
info = 0
label = 0
text = None
cosmo = 0
# f : input file
for a in options[:]:
if a[0] == '-f' and a[1] != '':
fname = a[1]
options.remove(a)
break
elif a[0] == '-f' and a[1] == '':
print '-f expects an argument'
sys.exit(0)
# o : output file
for a in options[:]:
if a[0] == '-o' and a[1] != '':
outdir = a[1]
options.remove(a)
break
elif a[0] == '-o' and a[1] == '':
print '-o expects an argument'
sys.exit(0)
# p : palette
for a in options[:]:
if a[0] == '-p' and a[1] != '':
color = pth = os.path.join(PALETTEDIR,a[1])
options.remove(a)
break
elif a[0] == '-p' and a[1] == '':
print '-p expects an argument'
sys.exit(0)
# z : zoom
for a in options[:]:
if a[0] == '-z' and a[1] != '':
zoom = string.atof(a[1])
options.remove(a)
break
elif a[0] == '-z' and a[1] == '':
print '-z expects an argument'
sys.exit(0)
# i : im init
for a in options[:]:
if a[0] == '-b' and a[1] != '':
tinit = string.atof(a[1])
options.remove(a)
break
elif a[0] == '-b' and a[1] == '':
print '-b expects an argument'
sys.exit(0)
# f : im init
for a in options[:]:
if a[0] == '-e' and a[1] != '':
tfinal = string.atof(a[1])
options.remove(a)
break
elif a[0] == '-e' and a[1] == '':
print '-e expects an argument'
sys.exit(0)
# s : im init
for a in options[:]:
if a[0] == '-s' and a[1] != '':
step = string.atoi(a[1])
options.remove(a)
break
elif a[0] == '-s' and a[1] == '':
print '-s expects an argument'
sys.exit(0)
# l : add label
for a in options[:]:
if a[0] == '-l':
label = 1
options.remove(a)
break
# t : text
for a in options[:]:
if a[0] == '-t' and a[1] != '':
text = a[1]
options.remove(a)
break
elif a[0] == '-t' and a[1] == '':
print '-t expects an argument'
sys.exit(0)
# i : info
for a in options[:]:
if a[0] == '-i':
info = 1
options.remove(a)
break
for a in options[:]:
if a[0] == '--version':
print 'version 1.1.'
print "Copyright (C) 2001, Revaz corporation."
sys.exit(0)
for a in options[:]:
if a[0] == '--cosmo':
cosmo = 1
if (tfinal != 0):
if (tfinal-tinit < 1):
print "number of final image must be larger than initial image !"
sys.exit(0)
#fname = xarguments[0]
if (fname==" "):
help_message()
sys.exit(0)
# create output directory
if os.path.exists(outdir):
print "%s already exists !"%(outdir)
txt = "Continue anyway and removes the content of %s ? [Y/n] "%(outdir)
bool = raw_input(txt)
if len(bool) == 0 or bool[0] == 'y' or bool[0] == 'Y' :
shutil.rmtree(outdir)
print "Removing %s"%(outdir)
else:
print "Nothing has been done. "
sys.exit(1)
os.mkdir(outdir)
# verifie que le fichier existe
if (os.path.exists(fname)==0):
print "Error : the file ",fname," no not exist."
sys.exit(0)
# ouvre le film
film = Movie.Movie(fname)
film.open()
if info:
film.info()
sys.exit(0)
# create a palette object
palette = Palette()
pth = os.path.join(PALETTEDIR,color)
palette.read(pth)
if tfinal == 0 :
tfinal = film.npic
###################################################
# taille de l'image de sortie
# largeur de l'image
width = int(film.numByte*zoom)
#----------------
# choix des font
#----------------
# determination de la taille
fsize = int(12*zoom - math.fmod(12*zoom,2))
if (fsize > 24) :
fsize = 24
if (fsize < 8) :
fsize = 8
if (fsize < 10):
size = '0'+`fsize`
else:
size = `fsize`
fontbasename = os.path.basename(FFONT)
fontdirname = os.path.dirname(FFONT)+'/'
fontname = fontdirname+fontbasename[:6]+size+ fontbasename[8:]
font = ImageFont.load(fontname)
# determination de l'offset en y
xy = font.getsize('0000.00')
xref = width - (width- xy[0])/2
if label:
dylab = int(2*xy[1])
else :
dylab = 0
# hauteur de l'image
height = int((film.numLine)*zoom)+dylab
shapezoom = (width,height)
###########################
# lecture de tout le film
###########################
listim = []
leap = 0
i = -1
while 1:
data = film.read_one()
if data==None: break
i = i + 1
if i >= tinit and i <= tfinal:
if leap==0:
# creation de l'image de sortie
image = film.get_img(data)
# zoom
image = image.transform(shapezoom,Image.AFFINE,(1./zoom,0.,0.,0.,1./zoom,0),Image.BICUBIC)
image = image.transform(shapezoom,Image.AFFINE,(1,0.,0.,0.,1,-dylab),Image.BICUBIC)
# put the label
if label:
if cosmo:
film.current_time = 1./film.current_time - 1
time = "%8.3f"%(film.current_time)
xy = font.getsize(time)
x = xref - xy[0]
y = int(dylab/4)
poslab = (x,y)
draw = ImageDraw.Draw(image)
draw.rectangle((0,0,width,dylab),fill=1)
draw.text(poslab,time,fill=256,font=font)
if text != None:
xy = font.getsize(text)
x = xy[1]
y = height - 2*xy[1]
postext = (x,y)
draw = ImageDraw.Draw(image)
draw.text(postext,text,fill=256,font=font)
# include the palette
image.putpalette(palette.palette)
####################################
# en dessous, partie propre a mpeg
####################################
# save it
bname = os.path.join(outdir,"%000005d"%(i))
print bname
image.save(bname+'.gif')
os.system('convert %s.gif %s.ppm'%(bname,bname))
os.system('rm %s.gif'%(bname))
listim.append(bname+'.ppm')
leap = fmod(leap+1,step+1)
else:
break

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