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now parse stream as rtp first and added more fields

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This commit is contained in:
Diego Waxemberg 2013-09-26 01:08:52 -04:00
parent 3fcd96d3bc
commit cbac2f2510
1 changed files with 34 additions and 16 deletions
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50
LuaScripts/NVStreamVideoPacket.lua
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@ -3,9 +3,11 @@
-- Diego Waxemberg
-- video header
local nvHeader_unknown = ProtoField.bytes("nv.unknown", "Unknown") -- 12 bytes
local nvHeader_frame = ProtoField.uint16("nv.frame", "Frame", base.HEX) -- 2 bytes
local nvHeader_garbage = ProtoField.bytes("nv.garbage", "Garbage") --14 bytes
local nvHeader_frame = ProtoField.uint32("nv.frame", "Frame", base.HEX) -- 4 bytes
local nvHeader_pindex = ProtoField.uint16("nv.pindex", "Packet Index", base.HEX) -- 2 bytes
local nvHeader_empty = ProtoField.uint16("nv.empty", "Empty?", base.HEX) -- 2 bytes
local nvHeader_pframe = ProtoField.uint16("nv.pframe", "Packets in Frame", base.HEX) -- 2 bytes
local nvHeader_garbage = ProtoField.bytes("nv.garbage", "Garbage") -- 6 bytes
local nvHeader_length = ProtoField.uint16("nv.length", "Length", base.HEX) -- 2 bytes
local nvHeader_moregarbage = ProtoField.bytes("nv.moregarbage", "More Garbage") --23 bytes
local nvHeader_start = ProtoField.uint32("nv.start", "Start", base.HEX) -- 4 bytes
@ -15,8 +17,10 @@ local nvVideo_data = ProtoField.bytes("nv.data", "Data") -- rest
p_nv = Proto("nv", "Nvidia Video Stream Protocol")
p_nv.fields = {
nvHeader_unknown,
nvHeader_frame,
nvHeader_pindex,
nvHeader_empty,
nvHeader_pframe,
nvHeader_garbage,
nvHeader_length,
nvHeader_moregarbage,
@ -29,20 +33,30 @@ function p_nv.dissector(buf, pkt, root)
subtree = root:add(p_nv, buf(0))
i = 0
-- unknown
unknown = buf(i, 12):bytes()
subtree:add(nvHeader_unknown, buf(i, 12))
i = i + 12
-- frame
frame = buf(i, 2):le_uint()
subtree:add(nvHeader_frame, buf(i, 2), frame)
frame = buf(i, 4):le_uint()
subtree:add(nvHeader_frame, buf(i, 4), frame)
i = i + 4
--pindex
pindex = buf(i, 2):le_uint()
subtree:add(nvHeader_pindex, buf(i, 2), pindex)
i = i + 2
--empty
empty = buf(i, 2):le_uint()
subtree:add(nvHeader_empty, buf(i, 2), empty)
i = i + 2
--pframe
pframe = buf(i, 2):le_uint()
subtree:add(nvHeader_pframe, buf(i, 2), pframe)
i = i + 2
-- garbage
garbage = buf(i, 14):bytes()
subtree:add(nvHeader_garbage, buf(i, 14))
i = i + 14
garbage = buf(i, 6):bytes()
subtree:add(nvHeader_garbage, buf(i, 6))
i = i + 6
-- length
length = buf(i, 2):le_uint()
@ -67,5 +81,9 @@ end
function p_nv.init()
end
local udp_dissector_table = DissectorTable.get("udp.port")
udp_dissector_table:add(47998, p_nv)
local udp_dissector_table = DissectorTable.get("rtp.pt")
udp_dissector_table:add(96, p_nv)