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[swfinterp] Use helper function struct_unpack for old Python 2.x releases (#3270)
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@ -2,12 +2,12 @@ from __future__ import unicode_literals
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import collections
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import io
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import struct
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import zlib
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from .utils import (
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compat_str,
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ExtractorError,
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struct_unpack,
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)
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@ -23,17 +23,17 @@ def _extract_tags(file_contents):
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file_contents[:1])
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# Determine number of bits in framesize rectangle
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framesize_nbits = struct.unpack('!B', content[:1])[0] >> 3
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framesize_nbits = struct_unpack('!B', content[:1])[0] >> 3
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framesize_len = (5 + 4 * framesize_nbits + 7) // 8
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pos = framesize_len + 2 + 2
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while pos < len(content):
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header16 = struct.unpack('<H', content[pos:pos + 2])[0]
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header16 = struct_unpack('<H', content[pos:pos + 2])[0]
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pos += 2
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tag_code = header16 >> 6
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tag_len = header16 & 0x3f
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if tag_len == 0x3f:
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tag_len = struct.unpack('<I', content[pos:pos + 4])[0]
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tag_len = struct_unpack('<I', content[pos:pos + 4])[0]
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pos += 4
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assert pos + tag_len <= len(content), \
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('Tag %d ends at %d+%d - that\'s longer than the file (%d)'
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@ -99,7 +99,7 @@ def _read_int(reader):
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for _ in range(5):
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buf = reader.read(1)
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assert len(buf) == 1
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b = struct.unpack('<B', buf)[0]
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b = struct_unpack('<B', buf)[0]
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res = res | ((b & 0x7f) << shift)
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if b & 0x80 == 0:
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break
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@ -125,7 +125,7 @@ def _s24(reader):
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bs = reader.read(3)
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assert len(bs) == 3
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last_byte = b'\xff' if (ord(bs[2:3]) >= 0x80) else b'\x00'
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return struct.unpack('<i', bs + last_byte)[0]
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return struct_unpack('<i', bs + last_byte)[0]
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def _read_string(reader):
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@ -144,7 +144,7 @@ def _read_bytes(count, reader):
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def _read_byte(reader):
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resb = _read_bytes(1, reader=reader)
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res = struct.unpack('<B', resb)[0]
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res = struct_unpack('<B', resb)[0]
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return res
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