def computeRate(inputVideo):
keys = ['ID_VIDEO_WIDTH', 'ID_VIDEO_HEIGHT', 'ID_VIDEO_FPS']
values = {}
for line in os.popen(
"mplayer -identify -frames 0 -vo null \"%s\" 2>/dev/null" %
inputVideo).readlines():
for key in keys:
if line.startswith(key):
try:
values[key] = float(line.strip().split('=')[1])
except:
panic("Failed to parse %s..." % line.strip())
break
for key in keys:
if key not in values.keys():
panic("Failed to find %s for %s" % (key, inputVideo))
return int(0.06 * reduce(lambda x, y: x * y, values.values()) / 1000.0)
def computeRate(inputVideo):
keys = [
'ID_VIDEO_WIDTH',
'ID_VIDEO_HEIGHT',
'ID_VIDEO_FPS']
values = {}
for line in os.popen(
"mplayer -identify -frames 0 -vo null \"%s\" 2>/dev/null" %
inputVideo).readlines():
for key in keys:
if line.startswith(key):
try:
values[key] = float(line.strip().split('=')[1])
except:
panic("Failed to parse %s..." % line.strip())
break
for key in keys:
if key not in values.keys():
panic("Failed to find %s for %s" % (key, inputVideo))
return int(0.06 * reduce(lambda x, y: x * y, values.values()) / 1000.0)
def main():
ustar = "ustar " + chr(0)
validFilenameChars = "-_,/." + string.digits + string.letters
try:
args = sys.argv[1:]
optlist, args = getopt.gnu_getopt(args, "hlxi:o:", ["help", "list", "extract", "input=", "outputFolder="])
except:
usage()
inputSource = None
listOnly = None
outputFolder = "."
for opt, arg in optlist:
if opt in ("-h", "--help"):
usage()
elif opt in ("-l", "--list"):
if listOnly is not None:
panic("\nOnly one of -l, -x can be used\n")
listOnly = True
elif opt in ("-x", "--extract"):
if listOnly is not None:
panic("\nOnly one of -l, -x can be used\n")
listOnly = False
elif opt in ("-i", "--input"):
inputSource = arg
if not os.path.exists(inputSource):
print "\nInvalid input source:", inputSource, "\n"
usage()
elif opt in ("-o", "--outputFolder"):
outputFolder = arg
if not os.path.isdir(outputFolder):
print "\nCan't find folder:", outputFolder, "\n"
usage()
else:
usage()
if listOnly is None:
print "\nYou must use either -l or -x!\n"
usage()
if args:
usage()
try:
f = open(inputSource, "rb")
except:
panic("Failed to open '%s' for reading - aborting..." % inputSource)
fo = None
foSize = None
writtenSoFar = 0
oldData = ""
preReadSector = False
while True:
if not preReadSector:
sectorData = f.read(512)
if not sectorData:
break
else:
preReadSector = False
sectorLength = len(sectorData)
idx = sectorData.find(ustar)
if idx != -1:
ustarIdx = idx
headerIdx = idx - 257
if headerIdx < 0:
sectorData = oldData + sectorData
sectorLength += len(oldData)
idx += len(oldData)
ustarIdx = idx
headerIdx = idx - 257
assert headerIdx >= 0
if ustarIdx + 255 > sectorLength:
sectorData += f.read(512)
sectorLength = len(sectorData)
if (
sectorData[headerIdx + 107] != chr(0)
or sectorData[headerIdx + 115] != chr(0)
or sectorData[headerIdx + 123] != chr(0)
):
continue
# Extract filename from header
idx, filenameChars = headerIdx, []
while sectorData[idx] in validFilenameChars:
filenameChars.append(sectorData[idx])
idx += 1
if idx >= sectorLength:
panic("Unexpected - need to lookahead more? Contact me...")
filename = "".join(filenameChars)
# Extract file size from header
try:
foSize = int(sectorData[ustarIdx - 133 : ustarIdx - 133 + 11], 8)
except:
continue
if foSize == 0:
print "Ignoring link/folder", filename, "(size: 0 bytes)"
sectorData = sectorData[ustarIdx + 1 :]
preReadSector = True
continue
# Report or extract (depending on whether --listOnly (-l) was used)
print "%s file:" % "Detected" if listOnly else "Extracting", filename, ",", foSize, "bytes long."
sys.stdout.flush()
if not listOnly:
filename = outputFolder + "/" + filename
if "/" in filename:
os.system("mkdir -p " + re.sub(r"/[^/]*$", "", filename))
fo = open(filename, "wb")
lenToWrite = min(foSize, sectorLength - (ustarIdx + 255))
fo.write(sectorData[ustarIdx + 255 : ustarIdx + 255 + lenToWrite])
writtenSoFar = lenToWrite
while writtenSoFar < foSize:
buf = f.read(min(65536, foSize - writtenSoFar))
writtenSoFar += len(buf)
fo.write(buf)
fo.close()
else:
oldData = sectorData[-512:]
def main():
ustar = "ustar " + chr(0)
validFilenameChars = "-_,/." + string.digits + string.letters
try:
args = sys.argv[1:]
optlist, args = getopt.gnu_getopt(
args, "hlxi:o:",
['help', 'list', 'extract', 'input=', 'outputFolder='])
except:
usage()
inputSource = None
listOnly = None
outputFolder = "."
for opt, arg in optlist:
if opt in ("-h", "--help"):
usage()
elif opt in ("-l", "--list"):
if listOnly is not None:
panic("\nOnly one of -l, -x can be used\n")
listOnly = True
elif opt in ("-x", "--extract"):
if listOnly is not None:
panic("\nOnly one of -l, -x can be used\n")
listOnly = False
elif opt in ("-i", "--input"):
inputSource = arg
if not os.path.exists(inputSource):
print "\nInvalid input source:", inputSource, "\n"
usage()
elif opt in ("-o", "--outputFolder"):
outputFolder = arg
if not os.path.isdir(outputFolder):
print "\nCan't find folder:", outputFolder, "\n"
usage()
else:
usage()
if listOnly is None:
print "\nYou must use either -l or -x!\n"
usage()
if args:
usage()
try:
f = open(inputSource, 'rb')
except:
panic("Failed to open '%s' for reading - aborting..." % inputSource)
fo = None
foSize = None
writtenSoFar = 0
oldData = ''
preReadSector = False
while True:
if not preReadSector:
sectorData = f.read(512)
if not sectorData:
break
else:
preReadSector = False
sectorLength = len(sectorData)
idx = sectorData.find(ustar)
if idx != -1:
ustarIdx = idx
headerIdx = idx - 257
if headerIdx < 0:
sectorData = oldData + sectorData
sectorLength += len(oldData)
idx += len(oldData)
ustarIdx = idx
headerIdx = idx - 257
assert headerIdx >= 0
if ustarIdx + 255 > sectorLength:
sectorData += f.read(512)
sectorLength = len(sectorData)
if sectorData[headerIdx + 107] != chr(0) or \
sectorData[headerIdx + 115] != chr(0) or \
sectorData[headerIdx + 123] != chr(0):
continue
# Extract filename from header
idx, filenameChars = headerIdx, []
while sectorData[idx] in validFilenameChars:
filenameChars.append(sectorData[idx])
idx += 1
if idx >= sectorLength:
panic("Unexpected - need to lookahead more? Contact me...")
filename = ''.join(filenameChars)
# Extract file size from header
try:
foSize = int(sectorData[ustarIdx - 133:ustarIdx - 133 + 11], 8)
except:
continue
if foSize == 0:
print "Ignoring link/folder", filename, "(size: 0 bytes)"
sectorData = sectorData[ustarIdx + 1:]
preReadSector = True
continue
# Report or extract (depending on whether --listOnly (-l) was used)
print '%s file:' % 'Detected' if listOnly else "Extracting", \
filename, ",", foSize, "bytes long."
sys.stdout.flush()
if not listOnly:
filename = outputFolder + '/' + filename
if '/' in filename:
os.system("mkdir -p " + re.sub(r'/[^/]*$', '', filename))
fo = open(filename, 'wb')
lenToWrite = min(foSize, sectorLength - (ustarIdx + 255))
fo.write(sectorData[ustarIdx + 255:ustarIdx + 255 +
lenToWrite])
writtenSoFar = lenToWrite
while writtenSoFar < foSize:
buf = f.read(min(65536, foSize - writtenSoFar))
writtenSoFar += len(buf)
fo.write(buf)
fo.close()
else:
oldData = sectorData[-512:]
