diff options
author | Hanoh Haim <hhaim@cisco.com> | 2015-09-20 17:34:55 +0300 |
---|---|---|
committer | Hanoh Haim <hhaim@cisco.com> | 2015-09-20 17:34:55 +0300 |
commit | 3fe28431157f7b2ed2ed8184ed85017c42a4cb6c (patch) | |
tree | 41fa17684842885e1664cc63ff1520157f191261 /scripts/external_libs/dpkt-1.8.6/dpkt/rtp.py | |
parent | 588bb20e9c8f8438db4eb3e8db85111f41bd7306 (diff) | |
parent | 28fef018f75b5a54ac69ac7c919127bf47f5b61f (diff) |
Merge branch 'master' of csi-sceasr-b45:/auto/proj-pcube-b/apps/PL-b/tools/repo//trex-core into wen
Diffstat (limited to 'scripts/external_libs/dpkt-1.8.6/dpkt/rtp.py')
-rw-r--r-- | scripts/external_libs/dpkt-1.8.6/dpkt/rtp.py | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/scripts/external_libs/dpkt-1.8.6/dpkt/rtp.py b/scripts/external_libs/dpkt-1.8.6/dpkt/rtp.py new file mode 100644 index 00000000..65fd0b98 --- /dev/null +++ b/scripts/external_libs/dpkt-1.8.6/dpkt/rtp.py @@ -0,0 +1,70 @@ +# $Id: rtp.py 23 2006-11-08 15:45:33Z dugsong $ + +"""Real-Time Transport Protocol""" + +from dpkt import Packet + +# version 1100 0000 0000 0000 ! 0xC000 14 +# p 0010 0000 0000 0000 ! 0x2000 13 +# x 0001 0000 0000 0000 ! 0x1000 12 +# cc 0000 1111 0000 0000 ! 0x0F00 8 +# m 0000 0000 1000 0000 ! 0x0080 7 +# pt 0000 0000 0111 1111 ! 0x007F 0 +# + +_VERSION_MASK= 0xC000 +_P_MASK = 0x2000 +_X_MASK = 0x1000 +_CC_MASK = 0x0F00 +_M_MASK = 0x0080 +_PT_MASK = 0x007F +_VERSION_SHIFT=14 +_P_SHIFT = 13 +_X_SHIFT = 12 +_CC_SHIFT = 8 +_M_SHIFT = 7 +_PT_SHIFT = 0 + +VERSION = 2 + +class RTP(Packet): + __hdr__ = ( + ('_type', 'H', 0x8000), + ('seq', 'H', 0), + ('ts', 'I', 0), + ('ssrc', 'I', 0), + ) + csrc = '' + + def _get_version(self): return (self._type&_VERSION_MASK)>>_VERSION_SHIFT + def _set_version(self, ver): + self._type = (ver << _VERSION_SHIFT) | (self._type & ~_VERSION_MASK) + def _get_p(self): return (self._type & _P_MASK) >> _P_SHIFT + def _set_p(self, p): self._type = (p << _P_SHIFT) | (self._type & ~_P_MASK) + def _get_x(self): return (self._type & _X_MASK) >> _X_SHIFT + def _set_x(self, x): self._type = (x << _X_SHIFT) | (self._type & ~_X_MASK) + def _get_cc(self): return (self._type & _CC_MASK) >> _CC_SHIFT + def _set_cc(self, cc): self._type = (cc<<_CC_SHIFT)|(self._type&~_CC_MASK) + def _get_m(self): return (self._type & _M_MASK) >> _M_SHIFT + def _set_m(self, m): self._type = (m << _M_SHIFT) | (self._type & ~_M_MASK) + def _get_pt(self): return (self._type & _PT_MASK) >> _PT_SHIFT + def _set_pt(self, m): self._type = (m << _PT_SHIFT)|(self._type&~_PT_MASK) + + version = property(_get_version, _set_version) + p = property(_get_p, _set_p) + x = property(_get_x, _set_x) + cc = property(_get_cc, _set_cc) + m = property(_get_m, _set_m) + pt = property(_get_pt, _set_pt) + + def __len__(self): + return self.__hdr_len__ + len(self.csrc) + len(self.data) + + def __str__(self): + return self.pack_hdr() + self.csrc + str(self.data) + + def unpack(self, buf): + super(RTP, self).unpack(buf) + self.csrc = buf[self.__hdr_len__:self.__hdr_len__ + self.cc * 4] + self.data = buf[self.__hdr_len__ + self.cc * 4:] + |