1 files changed, 85 insertions, 0 deletions
diff --git a/lib/Python/Lib/PIL/MpegImagePlugin.py b/lib/Python/Lib/PIL/MpegImagePlugin.py
new file mode 100644
index 000000000..9aca58f16
--- /dev/null
+++ b/lib/Python/Lib/PIL/MpegImagePlugin.py
@@ -0,0 +1,85 @@
+#
+# The Python Imaging Library.
+# $Id$
+#
+# MPEG file handling
+#
+# History:
+#       95-09-09 fl     Created
+#
+# Copyright (c) Secret Labs AB 1997.
+# Copyright (c) Fredrik Lundh 1995.
+#
+# See the README file for information on usage and redistribution.
+#
+
+__version__ = "0.1"
+
+from PIL import Image, ImageFile
+from PIL._binary import i8
+
+
+#
+# Bitstream parser
+
+class BitStream:
+
+    def __init__(self, fp):
+        self.fp = fp
+        self.bits = 0
+        self.bitbuffer = 0
+
+    def next(self):
+        return i8(self.fp.read(1))
+
+    def peek(self, bits):
+        while self.bits < bits:
+            c = self.next()
+            if c < 0:
+                self.bits = 0
+                continue
+            self.bitbuffer = (self.bitbuffer << 8) + c
+            self.bits += 8
+        return self.bitbuffer >> (self.bits - bits) & (1 << bits) - 1
+
+    def skip(self, bits):
+        while self.bits < bits:
+            self.bitbuffer = (self.bitbuffer << 8) + i8(self.fp.read(1))
+            self.bits += 8
+        self.bits = self.bits - bits
+
+    def read(self, bits):
+        v = self.peek(bits)
+        self.bits = self.bits - bits
+        return v
+
+
+##
+# Image plugin for MPEG streams.  This plugin can identify a stream,
+# but it cannot read it.
+
+class MpegImageFile(ImageFile.ImageFile):
+
+    format = "MPEG"
+    format_description = "MPEG"
+
+    def _open(self):
+
+        s = BitStream(self.fp)
+
+        if s.read(32) != 0x1B3:
+            raise SyntaxError("not an MPEG file")
+
+        self.mode = "RGB"
+        self.size = s.read(12), s.read(12)
+
+
+# --------------------------------------------------------------------
+# Registry stuff
+
+Image.register_open("MPEG", MpegImageFile)
+
+Image.register_extension("MPEG", ".mpg")
+Image.register_extension("MPEG", ".mpeg")
+
+Image.register_mime("MPEG", "video/mpeg")