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358 | #! /usr/bin/python
# DPG Converter by Anton Romanov (c) 2006
# released under GPL-2
#
"""A script to transcode video files to DPG format suitable for
Nintendo DS (tm)
dpgconv.py file1 file2 file3 ... fileN
command line options:
--dpg
0,1,2 sets DPG version.. default is DPG2
--pf
sets pixel format, default is 3
0 RGB15
1 RGB18
2 RGB21
3 RGB24
-q,--hq
high quality video
-l,--lq
low quality video(takes no effect when --hq,-q is set)]
default is normal quality
-v,--vbps xxx
sets video stream bps in kb/s(default: 256)
-a,--abps xxx
sets audio stream bps kb/s (default: 128)
-f,--fps xx
sets video frames per second (default:15)
-z,--hz
sets audio frequency (default:32000)
-c,--channels
2 - stereo, 1 - mono
default is to leave as is unless input audio channels
number is bigger then 2 ... then default is stereo
--aid n
use audio track n
--height xxx
destination video height
--width xxx
destination video width
--mv
additional parameters for mencoder for video
--ma
additional parameters for mencoder for audio
Hardcoding subtitles
--nosub
do no try autoloading of subtitles
(default is to try to load subtitle with matching filename)
--sub,-s xxx
Specify subtitles for hardcoding into video output
(is obviously only usable if you specify one file at a time)
--sid n
use subtitle track n
--subcp xxx
specify subtitles encoding
--font xxx
specify font for subtitles
EXAMPLE:
--font ~/arial-14/font.desc
--font ~/arialuni.ttf
--font 'Bitstream Vera Sans'
You can specify font, subcp and other additional mencoder parameters in
~/.mplayer/mencoder.conf
EXAMPLE:
font=/usr/local/share/fonts/msfonts/comic.ttf
subcp=cp1251
"""
import sys, os, optparse
MP2TMP="mp2tmp.mp2"
MPGTMP="mpgtmp.mpg"
HEADERTMP="header.tmp"
GOPTMP="gop.tmp"
STATTMP="stat.tmp"
MENCODER="mencoder"
MPLAYER="mplayer"
MPEG_STAT="mpeg_stat"
#Print a help message if requested.
if "-h" in sys.argv or "-help" in sys.argv or "--help" in sys.argv:
print __doc__
raise SystemExit
def cleanup_callback(a,b):
print "Removing temporary files"
if os.path.lexists ( MPGTMP ):
os.unlink ( MPGTMP )
if os.path.lexists ( MP2TMP ):
os.unlink ( MP2TMP )
if os.path.lexists ( HEADERTMP ):
os.unlink ( HEADERTMP )
if os.path.lexists ( GOPTMP ):
os.unlink ( GOPTMP )
if os.path.lexists ( STATTMP ):
os.unlink ( STATTMP )
def conv_vid(file):
if options.dpg == 0:
v_pf = "format=rgb24,"
options.pf = 3
elif options.pf == 3:
v_pf = "format=rgb24,"
elif options.pf == 2:
v_pf = "format=rgb21,"
elif options.pf == 1:
v_pf = "format=rgb18,"
elif options.pf == 0:
v_pf = "format=rgb15,"
else:
v_pf = "format=rgb24,"
options.pf = 3
if options.hq:
v_cmd = ( " \""+ file +"\" -v -ofps " + `options.fps` + " -sws 9 -vf " + v_pf + "scale=" + `options.width` + ":" + `options.height` +":::3 -nosound -ovc lavc -lavcopts vcodec=mpeg1video:vstrict=-2:mbd=2:trell:cbp:mv0:cmp=6:subcmp=6:precmp=6:dia=3:predia=3:last_pred=3:vbitrate=" + `options.vbps` + " -o " + MPGTMP + " -of rawvideo" )
elif options.lq:
v_cmd = ( " \"" + file + "\" -v -ofps " + `options.fps` + " -vf " + v_pf + "scale=" + `options.width` + ":" + `options.height` + " -nosound -ovc lavc -lavcopts vcodec=mpeg1video:vstrict=-2:vbitrate=" + `options.vbps` + " -o " + MPGTMP + " -of rawvideo" )
else :
v_cmd = ( " \""+ file +"\" -v -ofps " + `options.fps` + " -sws 9 -vf " + v_pf + "scale=" + `options.width` + ":" + `options.height` + ":::3 -nosound -ovc lavc -lavcopts vcodec=mpeg1video:vstrict=-2:mbd=2:trell:cbp:mv0:cmp=2:subcmp=2:precmp=2:vbitrate=" + `options.vbps` + " -o " + MPGTMP + " -of rawvideo")
if options.nosub:
if options.sub != None:
v_cmd = " -sub \"" + options.sub + "\" " + v_cmd
else:
basename = os.path.splitext ( file )[0]
if options.sid != None:
v_cmd = " -sid \"" + str(options.sid) + "\" " + v_cmd
if options.sub != None:
v_cmd = " -sub \"" + options.sub + "\" " + v_cmd
elif os.path.exists ( basename + ".ass" ):
v_cmd = " -sub \"" + basename + ".ass" + "\" " + v_cmd
elif os.path.exists ( basename + ".srt" ):
v_cmd = " -sub \"" + basename + ".srt" + "\" " + v_cmd
elif os.path.exists ( basename + ".sub" ):
v_cmd = " -sub \"" + basename + ".sub" + "\" " + v_cmd
elif os.path.exists ( basename + ".ssa" ):
v_cmd = " -sub \"" + basename + ".ssa" + "\" " + v_cmd
if options.subcp != None:
v_cmd = " -subcp " + options.subcp + v_cmd
if options.font != None:
v_cmd = " -font \"" + options.font + "\"" + v_cmd
v_cmd = MENCODER + " " + v_cmd
v_cmd = v_cmd + " " + options.mv
#print v_cmd
proc = subprocess.Popen(v_cmd,shell=True,stdout=subprocess.PIPE,universal_newlines=True,stderr=open('/dev/null', 'w'))
p = re.compile ("f (\(.*%\))")
for line in proc.stdout:
m = p.search( line )
if m:
print "Transcoding video: " + m.group(1) + "\r" ,
print "Transcoding video: done"
def conv_aud(file):
a_cmd = ( MENCODER + " \"" +file + "\" -v -of rawaudio -oac lavc -ovc copy -lavcopts acodec=mp2:abitrate=" + `options.abps` + " -o " + MP2TMP )
identify = commands.getoutput( MPLAYER + " -frames 0 -vo null -ao null -identify \"" + file + "\" | grep -E \"^ID|VIDEO|AUDIO\"")
p = re.compile ("([0-9]*)( ch)")
m = p.search( identify )
if m:
c = m.group(1)
if options.channels == None:
if c > 2:
a_cmd = a_cmd + " -af channels=2,resample=" +`options.hz`+ ":1:2"
else:
a_cmd = a_cmd + " -af resample=" +`options.hz`+ ":1:2"
elif options.channels >= 2:
a_cmd = a_cmd + " -af channels=2,resample=" +`options.hz`+ ":1:2"
else:
a_cmd = a_cmd + " -af channels=1,resample=" +`options.hz`+ ":1:2"
else:
print "Error running mplayer:"
print identify
if options.aid != None:
a_cmd = a_cmd + " -aid " + str(options.aid)
a_cmd = a_cmd + " " + options.ma
#print a_cmd
proc = subprocess.Popen(a_cmd,shell=True,stdout=subprocess.PIPE,universal_newlines=True,stderr=subprocess.STDOUT)
v_out = ""
p = re.compile ("f (\(.*%\))")
for line in proc.stdout:
m = p.search( line )
if m:
print "Transcoding audio: " + m.group(1) + "\r" ,
print "Transcoding audio: done"
def write_header(frames):
print "Creating header"
audiostart=36
if options.dpg == 1:
audiostart += 4
elif options.dpg == 2:
audiostart += 12
audiosize = os.stat(MP2TMP)[stat.ST_SIZE]
videosize = os.stat(MPGTMP)[stat.ST_SIZE]
videostart = audiostart + audiosize
videoend = videostart + videosize
f=open(HEADERTMP, 'wb')
DPG = "DPG" + `options.dpg`
headerValues = [ DPG, int(frames), options.fps, 0, options.hz , 0 ,int(audiostart), int(audiosize), int(videostart), int(videosize) ]
f.write (struct.pack( "4s" , headerValues[0]))
f.write (struct.pack ( "<l" , headerValues[1]))
f.write (struct.pack ( ">h" , headerValues[2]))
f.write (struct.pack ( ">h" , headerValues[3]))
f.write (struct.pack ( "<l" , headerValues[4]))
f.write (struct.pack ( "<l" , headerValues[5]))
f.write (struct.pack ( "<l" , headerValues[6]))
f.write (struct.pack ( "<l" , headerValues[7]))
f.write (struct.pack ( "<l" , headerValues[8]))
f.write (struct.pack ( "<l" , headerValues[9]))
if options.dpg == 0:
f.write (struct.pack ( "<l" , options.pf ))
if options.dpg == 2:
gopsize = os.stat(GOPTMP)[stat.ST_SIZE]
f.write (struct.pack ( "<l" , videoend ))
f.write (struct.pack ( "<l" , gopsize))
f.write (struct.pack ( "<l" , options.pf ))
f.close()
def mpeg_stat():
p = re.compile ("frames: ([0-9]*)\.")
s_out = commands.getoutput( MPEG_STAT + " -offset " + STATTMP + " " + MPGTMP )
m = p.search( s_out )
if m:
frames = m.group(1)
if options.dpg == 2:
gop=open(GOPTMP, 'wb')
stat=open(STATTMP, 'rb')
frame = 0
for line in stat:
sline = line.split()
if sline[0] == "picture" :
frame += 1
elif sline[0] == "sequence":
gop.write (struct.pack ( "<l" , frame ))
gop.write (struct.pack ( "<l" , int(sline[1])/8 )) # mpeg_stat shows bit offsets
gop.close()
stat.close()
else:
print s_out
return 0
return frames
def conv_file(file):
if not (os.path.lexists ( file )):
print "File " + file + " doesn't exist"
# return
print "Converting " + file
conv_vid (file)
conv_aud(file)
frames = mpeg_stat()
if frames == 0:
print "Error using mpeg_stat ... see error above"
cleanup_callback (0,0)
return
write_header(frames)
dpgname = os.path.basename ( os.path.splitext ( file )[0] ) + ".dpg"
print "Creating " + dpgname
commands.getoutput( "cat \"" + HEADERTMP + "\" \"" + MP2TMP + "\" \"" + MPGTMP + "\" > \"" + dpgname + "\"")
if options.dpg == 2:
commands.getoutput( "cat \"" + GOPTMP + "\" >> \"" + dpgname + "\"")
cleanup_callback (0,0)
print "Done converting \"" + file + "\" to \"" + dpgname + "\""
from optparse import OptionParser
parser = OptionParser()
parser.add_option("-f","--fps", type="int", dest="fps" , default=15)
parser.add_option("-q","--hq",action="store_true", dest="hq", default=False)
parser.add_option("-l","--lq",action="store_true", dest="lq", default=False)
parser.add_option("-v","--vbps", type="int", dest="vbps", default=256)
parser.add_option("-a","--abps", type="int", dest="abps", default=128)
parser.add_option("--height", type="int", dest="height", default=192)
parser.add_option("--width", type="int", dest="width", default=256)
parser.add_option("-z","--hz", type="int", dest="hz", default=32000)
parser.add_option("-c","--channels", type="int", dest="channels")
parser.add_option("--subcp", dest="subcp")
parser.add_option("-s","--sub", dest="sub")
parser.add_option("--font", dest="font")
parser.add_option("--mv", dest="mv",default="")
parser.add_option("--ma", dest="ma",default="")
parser.add_option("--nosub",action="store_true", dest="nosub", default=False)
parser.add_option("--dpg", type="int" , dest="dpg", default=2)
parser.add_option("--pf", type="int" , dest="pf", default=3)
parser.add_option("--sid", type="int" , dest="sid")
parser.add_option("--aid", type="int" , dest="aid")
(options, args) = parser.parse_args()
import signal
signal.signal(signal.SIGINT, cleanup_callback)
signal.signal(signal.SIGTERM, cleanup_callback)
import commands,re,stat,struct,subprocess
if options.dpg > 2:
options.dpg = 2
if options.dpg < 0:
options.dpg = 2
test = commands.getoutput ( MPEG_STAT + " --" )
m = re.compile ("mpeg_stat --(.*)").search(test)
if m:
print m.group(0)
else:
print "Error:"
print test
exit (0)
test = commands.getoutput ( MPLAYER )
m = re.compile ("^MPlayer.*").search(test)
if m:
print m.group(0)
else:
print "Error:"
print test
exit (0)
test = commands.getoutput ( MENCODER)
m = re.compile ("^MEncoder.*").search(test)
if m:
print m.group(0)
else:
print "Error:"
print test
exit (0)
print "It seems we found all programs :)...continuing"
print "______________________________________________"
for file in args:
conv_file(file)
|