Page 0: Page 1: RTMP, AMF by aproxacs, enblink Page 2: RTMP • • • • • Real Time Messaging Protocol Big Endian 64 channels AMF 1935 port Page 3: RTMP Header Header & Channel Unknown 4 Length 7 Packet Type 1 8 Source/Destination 12 Page 4: Header & Channel • Header Type(2bit) + Channel ID(6bit) • Header Type – – – – Tiny(11) : 1 byte header Small(10) : 4 bytes header Medium(01) : 8 bytes header Large(00) : 12 bytes header • Channel ID – 64 channel ID Page 5: Packet Type • The type of AMF Object Page 6: Chunk • Chunk Size로 나뉘어서 전송된다. • 128 bytes • 협상에 의해 변경 가능 Page 7: Chunk Page 8: Multiplexing • 한 connection에 여러 개 의 RTMP Packet이 전송 될 수 있다. Page 9: RTMP Body(AMF) • • • • • Audio Video Shared Object Invoke Notify Page 10: AMF • ActionScript Message Format • Json 과 비슷. – 문자열 대신 binary 이용 Page 11: AMF Data • Type + Data • Number 00 3f f0 00 00 00 00 00 00 (1.0) • String 02 00 05 63 68 61 6E 67 (chang) • Date 0B 41 D2 7C 0F DA 78 F5 C3 00 3C (2009-04-23 오전10:14:01, +0100) • Object 03 00 03 61 70 70 02 00 08 53 4f 53 61 6d 70 6c 65 00 00 09 ({ “app” : “SOSample” }) Page 12: AMF Data Type Page 13: AMF Object • Name + Data 의 연속 • 00 00 09로 끝남. Page 14: Example Page 15: Invoke Page 16: Invoke - result Page 17: