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Code Issues Releases Wiki Activity

Implement more opcodes

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This commit is contained in:
Philipp Hagemeister 2013-09-21 14:48:12 +02:00
parent e0df6211cc
commit a7177865b1
1 changed files with 38 additions and 7 deletions
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45
youtube_dl/extractor/youtube.py
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@ -863,13 +863,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor, SubtitlesInfoExtractor):
coder = io.BytesIO(m.code) coder = io.BytesIO(m.code)
while True: while True:
opcode = struct.unpack('!B', coder.read(1))[0] opcode = struct.unpack('!B', coder.read(1))[0]
if opcode == 208: # getlocal_0 if opcode == 36: # pushbyte
stack.append(registers[0])
elif opcode == 209: # getlocal_1
stack.append(registers[1])
elif opcode == 210: # getlocal_2
stack.append(registers[2])
elif opcode == 36: # pushbyte
v = struct.unpack('!B', coder.read(1))[0] v = struct.unpack('!B', coder.read(1))[0]
stack.append(v) stack.append(v)
elif opcode == 44: # pushstring elif opcode == 44: # pushstring
@ -895,12 +889,41 @@ class YoutubeIE(YoutubeBaseInfoExtractor, SubtitlesInfoExtractor):
else: else:
res = obj.split(args[0]) res = obj.split(args[0])
stack.append(res) stack.append(res)
elif mname == u'slice':
assert len(args) == 1
assert isinstance(args[0], int)
assert isinstance(obj, list)
res = obj[args[0]:]
stack.append(res)
elif mname == u'join':
assert len(args) == 1
assert isinstance(args[0], compat_str)
assert isinstance(obj, list)
res = args[0].join(obj)
stack.append(res)
elif mname in method_pyfunctions: elif mname in method_pyfunctions:
stack.append(method_pyfunctions[mname](args)) stack.append(method_pyfunctions[mname](args))
else: else:
raise NotImplementedError( raise NotImplementedError(
u'Unsupported property %r on %r' u'Unsupported property %r on %r'
% (mname, obj)) % (mname, obj))
elif opcode == 72: # returnvalue
res = stack.pop()
return res
elif opcode == 79: # callpropvoid
index = u30(coder)
mname = multinames[index]
arg_count = u30(coder)
args = list(reversed(
[stack.pop() for _ in range(arg_count)]))
obj = stack.pop()
if mname == u'reverse':
assert isinstance(obj, list)
obj.reverse()
else:
raise NotImplementedError(
u'Unsupported (void) property %r on %r'
% (mname, obj))
elif opcode == 93: # findpropstrict elif opcode == 93: # findpropstrict
index = u30(coder) index = u30(coder)
mname = multinames[index] mname = multinames[index]
@ -943,6 +966,14 @@ class YoutubeIE(YoutubeBaseInfoExtractor, SubtitlesInfoExtractor):
value1 = stack.pop() value1 = stack.pop()
res = value1 % value2 res = value1 % value2
stack.append(res) stack.append(res)
elif opcode == 208: # getlocal_0
stack.append(registers[0])
elif opcode == 209: # getlocal_1
stack.append(registers[1])
elif opcode == 210: # getlocal_2
stack.append(registers[2])
elif opcode == 211: # getlocal_3
stack.append(registers[3])
elif opcode == 214: # setlocal_2 elif opcode == 214: # setlocal_2
registers[2] = stack.pop() registers[2] = stack.pop()
elif opcode == 215: # setlocal_3 elif opcode == 215: # setlocal_3