Network 版 (精华区)
发信人: zzn (爱你到内伤), 信区: Network
标 题: mms协议英文资料(13)
发信站: 哈工大紫丁香 (2003年08月23日10:54:11 星期六), 站内信件
0D To Server
Prefix 1 01 00 00 00 - CommandLevel
Prefix 2 01 00 00 00
Cancel protocol. This can be sent if the player cancels viewing before the
protocol has been fully established, or after a timeout occurs. It is also
sent when media player closes the socket connection.
11 To Client
Prefix 1 00 00 00 00 - ErrorCode
Prefix 2 02 00 00 00 – shows the header PacketIDType
Then 00 00 00 00 - ??
Then 00 00 00 00 or 1c 00 03 00 is of unknown use.
Sending header or UDP packets pair if requested by the player. Sometimes this
command can appear during fragmented header packets when they span over more
than one packet.
15 To Server
Prefix 1 01 00 00 00 – CommandLevel
Prefix 2 00 00 00 00 - ??
Then data structure follows
This is a header request. It includes the ‘Packet ID type’ value used by
the server when sending header type MMS pre headers.
After this command is sent, the server replies with 0x11 command and then the
header object with header data follows.
The command 15 structure:
00 00 00 00 ?? 00 80 00 00 ?? flags FF FF FF FF ?? Xx xx xx xx this can have
a variable value e.g. 64 00 96 00 00 00 00 00 ?? 00 00 00 00 ?? 00 00 00 00
00 20 AC 40 double precision value = 3600 of unknown use. This could be the
media pre-roll value in seconds.
02 00 00 00 Header Packet ID type (used in mms pre-headers)
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