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https://github.com/moonlight-stream/moonlight-android.git
synced 2025-07-01 15:25:59 +00:00
90 lines
2.4 KiB
Lua
90 lines
2.4 KiB
Lua
-- Nvidia Streaming Video Packet Dissector
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-- Version: 1.0
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-- Diego Waxemberg
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-- video header
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local nvHeader_frame = ProtoField.uint32("nv.frame", "Frame", base.HEX) -- 4 bytes
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local nvHeader_pindex = ProtoField.uint16("nv.pindex", "Packet Index", base.HEX) -- 2 bytes
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local nvHeader_empty = ProtoField.uint16("nv.empty", "Empty?", base.HEX) -- 2 bytes
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local nvHeader_pframe = ProtoField.uint16("nv.pframe", "Packets in Frame", base.HEX) -- 2 bytes
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local nvHeader_garbage = ProtoField.bytes("nv.garbage", "Garbage") -- 6 bytes
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local nvHeader_length = ProtoField.uint16("nv.length", "Length", base.HEX) -- 2 bytes
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local nvHeader_moregarbage = ProtoField.bytes("nv.moregarbage", "More Garbage") --23 bytes
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local nvHeader_start = ProtoField.uint32("nv.start", "Start", base.HEX) -- 4 bytes
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-- video data
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local nvVideo_data = ProtoField.bytes("nv.data", "Data") -- rest
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p_nv = Proto("nv", "Nvidia Video Stream Protocol")
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p_nv.fields = {
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nvHeader_frame,
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nvHeader_pindex,
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nvHeader_empty,
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nvHeader_pframe,
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nvHeader_garbage,
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nvHeader_length,
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nvHeader_moregarbage,
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nvHeader_start,
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nvVideo_data
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}
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function p_nv.dissector(buf, pkt, root)
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pkt.cols.protocol = p_nv.name
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subtree = root:add(p_nv, buf(0))
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i = 0
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-- frame
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frame = buf(i, 4):le_uint()
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subtree:add(nvHeader_frame, buf(i, 4), frame)
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i = i + 4
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--pindex
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pindex = buf(i, 2):le_uint()
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subtree:add(nvHeader_pindex, buf(i, 2), pindex)
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i = i + 2
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--empty
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empty = buf(i, 2):le_uint()
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subtree:add(nvHeader_empty, buf(i, 2), empty)
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i = i + 2
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--pframe
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pframe = buf(i, 2):le_uint()
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subtree:add(nvHeader_pframe, buf(i, 2), pframe)
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i = i + 2
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-- garbage
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garbage = buf(i, 6):bytes()
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subtree:add(nvHeader_garbage, buf(i, 6))
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i = i + 6
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-- length
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length = buf(i, 2):le_uint()
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subtree:add(nvHeader_length, buf(i, 2), length)
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i = i + 2
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-- moregarbage
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moregarbage = buf(i, 23):bytes()
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subtree:add(nvHeader_moregarbage, buf(i, 23))
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i = i + 23
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-- start
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start = buf(i, 4):uint()
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subtree:add(nvHeader_start, buf(i, 4), start)
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i = i + 4
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-- data
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data = buf(i, buf:len()-i):bytes()
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subtree:add(nvVideo_data, buf(i, buf:len()-i))
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end
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function p_nv.init()
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end
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local udp_dissector_table = DissectorTable.get("rtp.pt")
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udp_dissector_table:add(96, p_nv)
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