Linux system Rtmpdump (LIBRTMP) publishes FLV data via rtmp __linux

To publish FLV data using RTMP, you first need to be aware of the FLV encapsulation format.  can view: FLV video Encapsulation Format before you run this instance, you need to build a rtmp server and build an environment where Rtmpdump compiles and runs. can refer to:

Nginx build rtmp Streaming Media server

Linux compilation Installation Trmpdump (LIBRTMP)

Rtmp specific operation interface, the LIBRTMP library has been encapsulated, you can call directly.

RTMPPushFlv.cpp

/*============================================================================= * FileName:RTMPPushFlv.cpp * DESC: * Author:licaibiao * lastchange:2017-05-3 * =================================================== ==========================*/#include "RTMPPushFlv.h" #include "sockInit.h" rtmppushflv::rtmppushflv (const string URL
	) {//TODO auto-generated constructor stub rtmpurl=url;
	 Fp=null;
	 start_time = 0;

	 Now_time = 0;
	 Pre_frame_time = 0;
	 Lasttime = 0;
	 B_next_is_key = 1;

	 pre_tag_size = 0;
	 Type = 0;
	 datalength = 0;

	 timestamp = 0;
rtmp = Rtmp_alloc ();
		} rtmppushflv::~rtmppushflv () {//TODO auto-generated destructor stub if (FP!= NULL) {fclose (FP);
	fp = NULL;
	} cleanupsockets ();
		if (rtmp!= NULL) {rtmp_close (rtmp);
		Rtmp_free (RTMP);
	rtmp = NULL;
		} if (P_file_buf!= NULL) {free (P_FILE_BUF);
	P_file_buf = NULL;
	 } int Rtmppushflv::init (const string filename) {infile=filename; fp = fopen (infile.c_str(), "RB");
		if (NULL = fp) {log_err ("Open File Error");
	return-1;
	} initsockets ();
	Rtmp_init (RTMP);
	Set Connection Timeout,default 30s rtmp->link.timeout = 5; if (!
		Rtmp_setupurl (RTMP, const_cast<char*> (Rtmpurl.c_str ()))) {Rtmp_log (Rtmp_logerror, "Setupurl Err\n");
		Rtmp_free (RTMP);
	return-1;
	} rtmp_enablewrite (RTMP); if (!
		Rtmp_connect (RTMP, NULL)) {Rtmp_log (Rtmp_logerror, "Connect err\n");
		Rtmp_free (RTMP);
	return-1; } if (!
		Rtmp_connectstream (RTMP, 0)) {rtmp_log (Rtmp_logerror, "ConnectStream err\n");
		Rtmp_close (RTMP);
		Rtmp_free (RTMP);
	return-1;
	//jump over FLV Header fseek (FP, 9, Seek_set);
	Jump over Previoustagsizen fseek (FP, 4, seek_cur);
return 0;
	} void Rtmppushflv::run () {Worker ();} void Rtmppushflv::worker () {log_info ("Start to send data ...");
	Start_time = Rtmp_gettime (); while (1) {if (((Now_time = Rtmp_gettime ())-Start_time) < (pre_frame_time)) && B_next_is_key) {// Wait for 1 sec If the send process is too fast//this mechanism are not very good,need some improvement if (Pre_frame_time &G T
				Lasttime) {rtmp_logprintf ("Timestamp:%8lu ms\n", pre_frame_time);
			Lasttime = Pre_frame_time;
			Sleep (1);
		Continue
		//jump over Type fseek (FP, 1, seek_cur); if (!
		ReadU24 (&datalength, FP)) {break; } if (!
		Readtime (Xtamp, FP)) {break;

		//jump back Fseek (FP,-8, seek_cur);
		P_FILE_BUF = (char *) malloc (one + datalength + 4);
		memset (p_file_buf, 0, one + datalength + 4);
		if (Fread (P_FILE_BUF, 1, one + datalength + 4, FP)!= (one + datalength + 4)) {break;

		} pre_frame_time = timestamp; if (!
			Rtmp_isconnected (RTMP)) {Rtmp_log (Rtmp_logerror, "RTMP is not connect\n");
		Break } if (!
			Rtmp_write (RTMP, p_file_buf, one + datalength + 4)) {Rtmp_log (Rtmp_logerror, "RTMP Write error\n");
		Break
		Free (P_FILE_BUF);

		P_file_buf = NULL; if (!
		PeekU8 (&type, FP)) {break; } if (0x09 = type) {//video if (fseek (FP, seek_cur)!= 0) {break; } if (!
			PeekU8 (&type, FP)) {break;
			} if (type = = 0x17) {//flv key frame B_next_is_key = 1;
			else {b_next_is_key = 0;
		Fseek (FP, -11, seek_cur);
} log_info ("Send Data over"); } void rtmppushflv::d opush () {This->start ();}

Note that if (0x09 = = type) Here, the video data is sent. In the first byte of the video data, the information is stored in the video. The following (type = = 0x17) is to find the key frame (for AVC, a seekable frame), the main purpose of which is to synchronize through the frame.

Before you push data to a server, you should start a client request so that you do not lose some information about FLV.

In streaming media player, request rtmp stream data: rtmp://192.168.0.5:1935/live and then run the above program, the effect is as follows:

Full project: Rtmpdump (LIBRTMP) publishes FLV data via rtmp