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rtmp.h
#ifndef __RTMP_H__ #define __RTMP_H__ /* * Copyright (C) 2005-2008 Team XBMC * http://www.xbmc.org * Copyright (C) 2008-2009 Andrej Stepanchuk * Copyright (C) 2009-2010 Howard Chu * * This file is part of librtmp. * * librtmp is free software; you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as * published by the Free Software Foundation; either version 2.1, * or (at your option) any later version. * * librtmp is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with librtmp see the file COPYING. If not, write to * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, * Boston, MA 02110-1301, USA. * http://www.gnu.org/copyleft/lgpl.html */ #if !defined(NO_CRYPTO) && !defined(CRYPTO) #define CRYPTO #endif #include <errno.h> #include <stdint.h> #include <stddef.h> #include "amf.h" #ifdef __cplusplus extern "C" { #endif #define RTMP_LIB_VERSION 0x020300 /* 2.3 */ #define RTMP_FEATURE_HTTP 0x01 #define RTMP_FEATURE_ENC 0x02 #define RTMP_FEATURE_SSL 0x04 #define RTMP_FEATURE_MFP 0x08 /* not yet supported */ #define RTMP_FEATURE_WRITE 0x10 /* publish, not play */ #define RTMP_FEATURE_HTTP2 0x20 /* server-side rtmpt */ #define RTMP_PROTOCOL_UNDEFINED -1 #define RTMP_PROTOCOL_RTMP 0 #define RTMP_PROTOCOL_RTMPE RTMP_FEATURE_ENC #define RTMP_PROTOCOL_RTMPT RTMP_FEATURE_HTTP #define RTMP_PROTOCOL_RTMPS RTMP_FEATURE_SSL #define RTMP_PROTOCOL_RTMPTE (RTMP_FEATURE_HTTP|RTMP_FEATURE_ENC) #define RTMP_PROTOCOL_RTMPTS (RTMP_FEATURE_HTTP|RTMP_FEATURE_SSL) #define RTMP_PROTOCOL_RTMFP RTMP_FEATURE_MFP #define RTMP_DEFAULT_CHUNKSIZE 128 /* needs to fit largest number of bytes recv() may return */ #define RTMP_BUFFER_CACHE_SIZE (16*1024) #define RTMP_CHANNELS 65600 extern const char RTMPProtocolStringsLower[][7]; extern const AVal RTMP_DefaultFlashVer; extern int RTMP_ctrlC; uint32_t RTMP_GetTime(void); /* RTMP_PACKET_TYPE_... 0x00 */ #define RTMP_PACKET_TYPE_CHUNK_SIZE 0x01 /* RTMP_PACKET_TYPE_... 0x02 */ #define RTMP_PACKET_TYPE_BYTES_READ_REPORT 0x03 #define RTMP_PACKET_TYPE_CONTROL 0x04 #define RTMP_PACKET_TYPE_SERVER_BW 0x05 #define RTMP_PACKET_TYPE_CLIENT_BW 0x06 /* RTMP_PACKET_TYPE_... 0x07 */ #define RTMP_PACKET_TYPE_AUDIO 0x08 #define RTMP_PACKET_TYPE_VIDEO 0x09 /* RTMP_PACKET_TYPE_... 0x0A */ /* RTMP_PACKET_TYPE_... 0x0B */ /* RTMP_PACKET_TYPE_... 0x0C */ /* RTMP_PACKET_TYPE_... 0x0D */ /* RTMP_PACKET_TYPE_... 0x0E */ #define RTMP_PACKET_TYPE_FLEX_STREAM_SEND 0x0F #define RTMP_PACKET_TYPE_FLEX_SHARED_OBJECT 0x10 #define RTMP_PACKET_TYPE_FLEX_MESSAGE 0x11 #define RTMP_PACKET_TYPE_INFO 0x12 #define RTMP_PACKET_TYPE_SHARED_OBJECT 0x13 #define RTMP_PACKET_TYPE_INVOKE 0x14 /* RTMP_PACKET_TYPE_... 0x15 */ #define RTMP_PACKET_TYPE_FLASH_VIDEO 0x16 #define RTMP_MAX_HEADER_SIZE 18 #define RTMP_PACKET_SIZE_LARGE 0 #define RTMP_PACKET_SIZE_MEDIUM 1 #define RTMP_PACKET_SIZE_SMALL 2 #define RTMP_PACKET_SIZE_MINIMUM 3 typedef struct RTMPChunk { int c_headerSize; int c_chunkSize; char *c_chunk; char c_header[RTMP_MAX_HEADER_SIZE]; } RTMPChunk; typedef struct RTMPPacket { uint8_t m_headerType; uint8_t m_packetType; uint8_t m_hasAbsTimestamp; /* timestamp absolute or relative? */ int m_nChannel; uint32_t m_nTimeStamp; /* timestamp */ int32_t m_nInfoField2; /* last 4 bytes in a long header */ uint32_t m_nBodySize; uint32_t m_nBytesRead; RTMPChunk *m_chunk; char *m_body; } RTMPPacket; typedef struct RTMPSockBuf { int sb_socket; int sb_size; /* number of unprocessed bytes in buffer */ char *sb_start; /* pointer into sb_pBuffer of next byte to process */ char sb_buf[RTMP_BUFFER_CACHE_SIZE]; /* data read from socket */ int sb_timedout; void *sb_ssl; } RTMPSockBuf; void RTMPPacket_Reset(RTMPPacket *p); void RTMPPacket_Dump(RTMPPacket *p); int RTMPPacket_Alloc(RTMPPacket *p, uint32_t nSize); void RTMPPacket_Free(RTMPPacket *p); #define RTMPPacket_IsReady(a) ((a)->m_nBytesRead == (a)->m_nBodySize) typedef struct RTMP_LNK { AVal hostname; AVal sockshost; AVal playpath0; /* parsed from URL */ AVal playpath; /* passed in explicitly */ AVal tcUrl; AVal swfUrl; AVal pageUrl; AVal app; AVal auth; AVal flashVer; AVal subscribepath; AVal usherToken; AVal token; AVal pubUser; AVal pubPasswd; AMFObject extras; int edepth; int seekTime; int stopTime; #define RTMP_LF_AUTH 0x0001 /* using auth param */ #define RTMP_LF_LIVE 0x0002 /* stream is live */ #define RTMP_LF_SWFV 0x0004 /* do SWF verification */ #define RTMP_LF_PLST 0x0008 /* send playlist before play */ #define RTMP_LF_BUFX 0x0010 /* toggle stream on BufferEmpty msg */ #define RTMP_LF_FTCU 0x0020 /* free tcUrl on close */ #define RTMP_LF_FAPU 0x0040 /* free app on close */ int lFlags; int swfAge; int protocol; int timeout; /* connection timeout in seconds */ int pFlags; /* unused, but kept to avoid breaking ABI */ unsigned short socksport; unsigned short port; #ifdef CRYPTO #define RTMP_SWF_HASHLEN 32 void *dh; /* for encryption */ void *rc4keyIn; void *rc4keyOut; uint32_t SWFSize; uint8_t SWFHash[RTMP_SWF_HASHLEN]; char SWFVerificationResponse[RTMP_SWF_HASHLEN+10]; #endif } RTMP_LNK; /* state for read() wrapper */ typedef struct RTMP_READ { char *buf; char *bufpos; unsigned int buflen; uint32_t timestamp; uint8_t dataType; uint8_t flags; #define RTMP_READ_HEADER 0x01 #define RTMP_READ_RESUME 0x02 #define RTMP_READ_NO_IGNORE 0x04 #define RTMP_READ_GOTKF 0x08 #define RTMP_READ_GOTFLVK 0x10 #define RTMP_READ_SEEKING 0x20 int8_t status; #define RTMP_READ_COMPLETE -3 #define RTMP_READ_ERROR -2 #define RTMP_READ_EOF -1 #define RTMP_READ_IGNORE 0 /* if bResume == TRUE */ uint8_t initialFrameType; uint32_t nResumeTS; char *metaHeader; char *initialFrame; uint32_t nMetaHeaderSize; uint32_t nInitialFrameSize; uint32_t nIgnoredFrameCounter; uint32_t nIgnoredFlvFrameCounter; } RTMP_READ; typedef struct RTMP_METHOD { AVal name; int num; } RTMP_METHOD; typedef struct RTMP { int m_inChunkSize; int m_outChunkSize; int m_nBWCheckCounter; int m_nBytesIn; int m_nBytesInSent; int m_nBufferMS; int m_stream_id; /* returned in _result from createStream */ int m_mediaChannel; uint32_t m_mediaStamp; uint32_t m_pauseStamp; int m_pausing; int m_nServerBW; int m_nClientBW; uint8_t m_nClientBW2; uint8_t m_bPlaying; uint8_t m_bSendEncoding; uint8_t m_bSendCounter; int m_numInvokes; int m_numCalls; RTMP_METHOD *m_methodCalls; /* remote method calls queue */ int m_channelsAllocatedIn; int m_channelsAllocatedOut; RTMPPacket **m_vecChannelsIn; RTMPPacket **m_vecChannelsOut; int *m_channelTimestamp; /* abs timestamp of last packet */ double m_fAudioCodecs; /* audioCodecs for the connect packet */ double m_fVideoCodecs; /* videoCodecs for the connect packet */ double m_fEncoding; /* AMF0 or AMF3 */ double m_fDuration; /* duration of stream in seconds */ int m_msgCounter; /* RTMPT stuff */ int m_polling; int m_resplen; int m_unackd; AVal m_clientID; RTMP_READ m_read; RTMPPacket m_write; RTMPSockBuf m_sb; RTMP_LNK Link; } RTMP; int RTMP_ParseURL(const char *url, int *protocol, AVal *host, unsigned int *port, AVal *playpath, AVal *app); void RTMP_ParsePlaypath(AVal *in, AVal *out); void RTMP_SetBufferMS(RTMP *r, int size); void RTMP_UpdateBufferMS(RTMP *r); int RTMP_SetOpt(RTMP *r, const AVal *opt, AVal *arg); int RTMP_SetupURL(RTMP *r, char *url); void RTMP_SetupStream(RTMP *r, int protocol, AVal *hostname, unsigned int port, AVal *sockshost, AVal *playpath, AVal *tcUrl, AVal *swfUrl, AVal *pageUrl, AVal *app, AVal *auth, AVal *swfSHA256Hash, uint32_t swfSize, AVal *flashVer, AVal *subscribepath, AVal *usherToken, int dStart, int dStop, int bLiveStream, long int timeout); int RTMP_Connect(RTMP *r, RTMPPacket *cp); struct sockaddr; int RTMP_Connect0(RTMP *r, struct sockaddr *svc); int RTMP_Connect1(RTMP *r, RTMPPacket *cp); int RTMP_Serve(RTMP *r); int RTMP_TLS_Accept(RTMP *r, void *ctx); int RTMP_ReadPacket(RTMP *r, RTMPPacket *packet); int RTMP_SendPacket(RTMP *r, RTMPPacket *packet, int queue); int RTMP_SendChunk(RTMP *r, RTMPChunk *chunk); int RTMP_IsConnected(RTMP *r); int RTMP_Socket(RTMP *r); int RTMP_IsTimedout(RTMP *r); double RTMP_GetDuration(RTMP *r); int RTMP_ToggleStream(RTMP *r); int RTMP_ConnectStream(RTMP *r, int seekTime); int RTMP_ReconnectStream(RTMP *r, int seekTime); void RTMP_DeleteStream(RTMP *r); int RTMP_GetNextMediaPacket(RTMP *r, RTMPPacket *packet); int RTMP_ClientPacket(RTMP *r, RTMPPacket *packet); void RTMP_Init(RTMP *r); void RTMP_Close(RTMP *r); RTMP *RTMP_Alloc(void); void RTMP_Free(RTMP *r); void RTMP_EnableWrite(RTMP *r); void *RTMP_TLS_AllocServerContext(const char* cert, const char* key); void RTMP_TLS_FreeServerContext(void *ctx); int RTMP_LibVersion(void); void RTMP_UserInterrupt(void); /* user typed Ctrl-C */ int RTMP_SendCtrl(RTMP *r, short nType, unsigned int nObject, unsigned int nTime); /* caller probably doesn't know current timestamp, should * just use RTMP_Pause instead */ int RTMP_SendPause(RTMP *r, int DoPause, int dTime); int RTMP_Pause(RTMP *r, int DoPause); int RTMP_FindFirstMatchingProperty(AMFObject *obj, const AVal *name, AMFObjectProperty * p); int RTMPSockBuf_Fill(RTMPSockBuf *sb); int RTMPSockBuf_Send(RTMPSockBuf *sb, const char *buf, int len); int RTMPSockBuf_Close(RTMPSockBuf *sb); int RTMP_SendCreateStream(RTMP *r); int RTMP_SendSeek(RTMP *r, int dTime); int RTMP_SendServerBW(RTMP *r); int RTMP_SendClientBW(RTMP *r); void RTMP_DropRequest(RTMP *r, int i, int freeit); int RTMP_Read(RTMP *r, char *buf, int size); int RTMP_Write(RTMP *r, const char *buf, int size); /* hashswf.c */ int RTMP_HashSWF(const char *url, unsigned int *size, unsigned char *hash, int age); #ifdef __cplusplus }; #endif #endif