本文主要是介绍最简单的基于librtmp的示例:发布(FLV通过RTMP发布)(发送数据),希望对大家解决编程问题提供一定的参考价值,需要的开发者们随着小编来一起学习吧!
http://blog.csdn.net/leixiaohua1020/article/details/42104945
本文记录一个基于libRTMP的发布流媒体的程序:Simplest libRTMP Send FLV。该程序可以将本地FLV文件发布到RTMP流媒体服务器。是最简单的基于libRTMP的流媒体发布示例。
流程图
使用librtmp发布RTMP流的可以使用两种API:RTMP_SendPacket()和RTMP_Write()。使用RTMP_SendPacket()发布流的时候的函数执行流程图如下图所示。使用RTMP_Write()发布流的时候的函数执行流程图相差不大。
流程图中关键函数的作用如下所列:
InitSockets():初始化SocketRTMP_Alloc():为结构体“RTMP”分配内存。
RTMP_Init():初始化结构体“RTMP”中的成员变量。
RTMP_SetupURL():设置输入的RTMP连接的URL。
RTMP_EnableWrite():发布流的时候必须要使用。如果不使用则代表接收流。
RTMP_Connect():建立RTMP连接,创建一个RTMP协议规范中的NetConnection。
RTMP_ConnectStream():创建一个RTMP协议规范中的NetStream。
Delay:发布流过程中的延时,保证按正常播放速度发送数据。
RTMP_SendPacket():发送一个RTMP数据RTMPPacket。
RTMP_Close():关闭RTMP连接。
RTMP_Free():释放结构体“RTMP”。
CleanupSockets():关闭Socket。
源代码
源代码中包含了使用两种API函数RTMP_SendPacket()和RTMP_Write()发布流媒体的源代码,如下所示。- /**
- * Simplest Librtmp Send FLV
- *
- * 雷霄骅,张晖
- * leixiaohua1020@126.com
- * zhanghuicuc@gmail.com
- * 中国传媒大学/数字电视技术
- * Communication University of China / Digital TV Technology
- * http://blog.csdn.net/leixiaohua1020
- *
- * 本程序用于将FLV格式的视音频文件使用RTMP推送至RTMP流媒体服务器。
- * This program can send local flv file to net server as a rtmp live stream.
- */
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- #include <stdint.h>
- #ifndef WIN32
- #include <unistd.h>
- #endif
- #include "librtmp/rtmp_sys.h"
- #include "librtmp/log.h"
- #define HTON16(x) ((x>>8&0xff)|(x<<8&0xff00))
- #define HTON24(x) ((x>>16&0xff)|(x<<16&0xff0000)|(x&0xff00))
- #define HTON32(x) ((x>>24&0xff)|(x>>8&0xff00)|\
- (x<<8&0xff0000)|(x<<24&0xff000000))
- #define HTONTIME(x) ((x>>16&0xff)|(x<<16&0xff0000)|(x&0xff00)|(x&0xff000000))
- /*read 1 byte*/
- int ReadU8(uint32_t *u8,FILE*fp){
- if(fread(u8,1,1,fp)!=1)
- return 0;
- return 1;
- }
- /*read 2 byte*/
- int ReadU16(uint32_t *u16,FILE*fp){
- if(fread(u16,2,1,fp)!=1)
- return 0;
- *u16=HTON16(*u16);
- return 1;
- }
- /*read 3 byte*/
- int ReadU24(uint32_t *u24,FILE*fp){
- if(fread(u24,3,1,fp)!=1)
- return 0;
- *u24=HTON24(*u24);
- return 1;
- }
- /*read 4 byte*/
- int ReadU32(uint32_t *u32,FILE*fp){
- if(fread(u32,4,1,fp)!=1)
- return 0;
- *u32=HTON32(*u32);
- return 1;
- }
- /*read 1 byte,and loopback 1 byte at once*/
- int PeekU8(uint32_t *u8,FILE*fp){
- if(fread(u8,1,1,fp)!=1)
- return 0;
- fseek(fp,-1,SEEK_CUR);
- return 1;
- }
- /*read 4 byte and convert to time format*/
- int ReadTime(uint32_t *utime,FILE*fp){
- if(fread(utime,4,1,fp)!=1)
- return 0;
- *utime=HTONTIME(*utime);
- return 1;
- }
- int InitSockets()
- {
- WORD version;
- WSADATA wsaData;
- version=MAKEWORD(2,2);
- return (WSAStartup(version, &wsaData) == 0);
- }
- void CleanupSockets()
- {
- WSACleanup();
- }
- //Publish using RTMP_SendPacket()
- int publish_using_packet(){
- RTMP *rtmp=NULL;
- RTMPPacket *packet=NULL;
- uint32_t start_time=0;
- uint32_t now_time=0;
- //the timestamp of the previous frame
- long pre_frame_time=0;
- long lasttime=0;
- int bNextIsKey=1;
- uint32_t preTagsize=0;
- //packet attributes
- uint32_t type=0;
- uint32_t datalength=0;
- uint32_t timestamp=0;
- uint32_t streamid=0;
- FILE*fp=NULL;
- fp=fopen("cuc_ieschool.flv","rb");
- if (!fp){
- RTMP_LogPrintf("Open File Error.\n");
- CleanupSockets();
- return -1;
- }
- /* set log level */
- //RTMP_LogLevel loglvl=RTMP_LOGDEBUG;
- //RTMP_LogSetLevel(loglvl);
- if (!InitSockets()){
- RTMP_LogPrintf("Init Socket Err\n");
- return -1;
- }
- rtmp=RTMP_Alloc();
- RTMP_Init(rtmp);
- //set connection timeout,default 30s
- rtmp->Link.timeout=5;
- if(!RTMP_SetupURL(rtmp,"rtmp://localhost/publishlive/livestream"))
- {
- RTMP_Log(RTMP_LOGERROR,"SetupURL Err\n");
- RTMP_Free(rtmp);
- CleanupSockets();
- return -1;
- }
- //if unable,the AMF command would be 'play' instead of 'publish'
- RTMP_EnableWrite(rtmp);
- if (!RTMP_Connect(rtmp,NULL)){
- RTMP_Log(RTMP_LOGERROR,"Connect Err\n");
- RTMP_Free(rtmp);
- CleanupSockets();
- return -1;
- }
- if (!RTMP_ConnectStream(rtmp,0)){
- RTMP_Log(RTMP_LOGERROR,"ConnectStream Err\n");
- RTMP_Close(rtmp);
- RTMP_Free(rtmp);
- CleanupSockets();
- return -1;
- }
- packet=(RTMPPacket*)malloc(sizeof(RTMPPacket));
- RTMPPacket_Alloc(packet,1024*64);
- RTMPPacket_Reset(packet);
- packet->m_hasAbsTimestamp = 0;
- packet->m_nChannel = 0x04;
- packet->m_nInfoField2 = rtmp->m_stream_id;
- RTMP_LogPrintf("Start to send data ...\n");
- //jump over FLV Header
- fseek(fp,9,SEEK_SET);
- //jump over previousTagSizen
- fseek(fp,4,SEEK_CUR);
- start_time=RTMP_GetTime();
- while(1)
- {
- if((((now_time=RTMP_GetTime())-start_time)
- <(pre_frame_time)) && bNextIsKey){
- //wait for 1 sec if the send process is too fast
- //this mechanism is not very good,need some improvement
- if(pre_frame_time>lasttime){
- RTMP_LogPrintf("TimeStamp:%8lu ms\n",pre_frame_time);
- lasttime=pre_frame_time;
- }
- Sleep(1000);
- continue;
- }
- //not quite the same as FLV spec
- if(!ReadU8(&type,fp))
- break;
- if(!ReadU24(&datalength,fp))
- break;
- if(!ReadTime(×tamp,fp))
- break;
- if(!ReadU24(&streamid,fp))
- break;
- if (type!=0x08&&type!=0x09){
- //jump over non_audio and non_video frame,
- //jump over next previousTagSizen at the same time
- fseek(fp,datalength+4,SEEK_CUR);
- continue;
- }
- if(fread(packet->m_body,1,datalength,fp)!=datalength)
- break;
- packet->m_headerType = RTMP_PACKET_SIZE_LARGE;
- packet->m_nTimeStamp = timestamp;
- packet->m_packetType = type;
- packet->m_nBodySize = datalength;
- pre_frame_time=timestamp;
- if (!RTMP_IsConnected(rtmp)){
- RTMP_Log(RTMP_LOGERROR,"rtmp is not connect\n");
- break;
- }
- if (!RTMP_SendPacket(rtmp,packet,0)){
- RTMP_Log(RTMP_LOGERROR,"Send Error\n");
- break;
- }
- if(!ReadU32(&preTagsize,fp))
- break;
- if(!PeekU8(&type,fp))
- break;
- if(type==0x09){
- if(fseek(fp,11,SEEK_CUR)!=0)
- break;
- if(!PeekU8(&type,fp)){
- break;
- }
- if(type==0x17)
- bNextIsKey=1;
- else
- bNextIsKey=0;
- fseek(fp,-11,SEEK_CUR);
- }
- }
- RTMP_LogPrintf("\nSend Data Over\n");
- if(fp)
- fclose(fp);
- if (rtmp!=NULL){
- RTMP_Close(rtmp);
- RTMP_Free(rtmp);
- rtmp=NULL;
- }
- if (packet!=NULL){
- RTMPPacket_Free(packet);
- free(packet);
- packet=NULL;
- }
- CleanupSockets();
- return 0;
- }
- //Publish using RTMP_Write()
- int publish_using_write(){
- uint32_t start_time=0;
- uint32_t now_time=0;
- uint32_t pre_frame_time=0;
- uint32_t lasttime=0;
- int bNextIsKey=0;
- char* pFileBuf=NULL;
- //read from tag header
- uint32_t type=0;
- uint32_t datalength=0;
- uint32_t timestamp=0;
- RTMP *rtmp=NULL;
- FILE*fp=NULL;
- fp=fopen("cuc_ieschool.flv","rb");
- if (!fp){
- RTMP_LogPrintf("Open File Error.\n");
- CleanupSockets();
- return -1;
- }
- /* set log level */
- //RTMP_LogLevel loglvl=RTMP_LOGDEBUG;
- //RTMP_LogSetLevel(loglvl);
- if (!InitSockets()){
- RTMP_LogPrintf("Init Socket Err\n");
- return -1;
- }
- rtmp=RTMP_Alloc();
- RTMP_Init(rtmp);
- //set connection timeout,default 30s
- rtmp->Link.timeout=5;
- if(!RTMP_SetupURL(rtmp,"rtmp://localhost/publishlive/livestream"))
- {
- RTMP_Log(RTMP_LOGERROR,"SetupURL Err\n");
- RTMP_Free(rtmp);
- CleanupSockets();
- return -1;
- }
- RTMP_EnableWrite(rtmp);
- //1hour
- RTMP_SetBufferMS(rtmp, 3600*1000);
- if (!RTMP_Connect(rtmp,NULL)){
- RTMP_Log(RTMP_LOGERROR,"Connect Err\n");
- RTMP_Free(rtmp);
- CleanupSockets();
- return -1;
- }
- if (!RTMP_ConnectStream(rtmp,0)){
- RTMP_Log(RTMP_LOGERROR,"ConnectStream Err\n");
- RTMP_Close(rtmp);
- RTMP_Free(rtmp);
- CleanupSockets();
- return -1;
- }
- printf("Start to send data ...\n");
- //jump over FLV Header
- fseek(fp,9,SEEK_SET);
- //jump over previousTagSizen
- fseek(fp,4,SEEK_CUR);
- start_time=RTMP_GetTime();
- while(1)
- {
- if((((now_time=RTMP_GetTime())-start_time)
- <(pre_frame_time)) && bNextIsKey){
- //wait for 1 sec if the send process is too fast
- //this mechanism is not very good,need some improvement
- if(pre_frame_time>lasttime){
- RTMP_LogPrintf("TimeStamp:%8lu ms\n",pre_frame_time);
- lasttime=pre_frame_time;
- }
- Sleep(1000);
- continue;
- }
- //jump over type
- fseek(fp,1,SEEK_CUR);
- if(!ReadU24(&datalength,fp))
- break;
- if(!ReadTime(×tamp,fp))
- break;
- //jump back
- fseek(fp,-8,SEEK_CUR);
- pFileBuf=(char*)malloc(11+datalength+4);
- memset(pFileBuf,0,11+datalength+4);
- if(fread(pFileBuf,1,11+datalength+4,fp)!=(11+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,pFileBuf,11+datalength+4)){
- RTMP_Log(RTMP_LOGERROR,"Rtmp Write Error\n");
- break;
- }
- free(pFileBuf);
- pFileBuf=NULL;
- if(!PeekU8(&type,fp))
- break;
- if(type==0x09){
- if(fseek(fp,11,SEEK_CUR)!=0)
- break;
- if(!PeekU8(&type,fp)){
- break;
- }
- if(type==0x17)
- bNextIsKey=1;
- else
- bNextIsKey=0;
- fseek(fp,-11,SEEK_CUR);
- }
- }
- RTMP_LogPrintf("\nSend Data Over\n");
- if(fp)
- fclose(fp);
- if (rtmp!=NULL){
- RTMP_Close(rtmp);
- RTMP_Free(rtmp);
- rtmp=NULL;
- }
- if(pFileBuf){
- free(pFileBuf);
- pFileBuf=NULL;
- }
- CleanupSockets();
- return 0;
- }
- int main(int argc, char* argv[]){
- //2 Methods:
- publish_using_packet();
- //publish_using_write();
- return 0;
- }
运行结果
程序运行后,会将“cuc_ieschool.flv”文件以直播流的形式发布到“rtmp://localhost/publishlive/livestream”的URL。修改文件名称和RTMP的URL可以实现将任意flv文件发布到任意RTMP的URL。
下载
Simplest LibRTMP Example项目主页
SourceForge:https://sourceforge.net/projects/simplestlibrtmpexample/
Github:https://github.com/leixiaohua1020/simplest_librtmp_example
开源中国:http://git.oschina.net/leixiaohua1020/simplest_librtmp_example
本文记录一个基于libRTMP的发布流媒体的程序:Simplest libRTMP Send FLV。该程序可以将本地FLV文件发布到RTMP流媒体服务器。是最简单的基于libRTMP的流媒体发布示例。
流程图
使用librtmp发布RTMP流的可以使用两种API:RTMP_SendPacket()和RTMP_Write()。使用RTMP_SendPacket()发布流的时候的函数执行流程图如下图所示。使用RTMP_Write()发布流的时候的函数执行流程图相差不大。
流程图中关键函数的作用如下所列:
InitSockets():初始化SocketRTMP_Alloc():为结构体“RTMP”分配内存。
RTMP_Init():初始化结构体“RTMP”中的成员变量。
RTMP_SetupURL():设置输入的RTMP连接的URL。
RTMP_EnableWrite():发布流的时候必须要使用。如果不使用则代表接收流。
RTMP_Connect():建立RTMP连接,创建一个RTMP协议规范中的NetConnection。
RTMP_ConnectStream():创建一个RTMP协议规范中的NetStream。
Delay:发布流过程中的延时,保证按正常播放速度发送数据。
RTMP_SendPacket():发送一个RTMP数据RTMPPacket。
RTMP_Close():关闭RTMP连接。
RTMP_Free():释放结构体“RTMP”。
CleanupSockets():关闭Socket。
源代码
源代码中包含了使用两种API函数RTMP_SendPacket()和RTMP_Write()发布流媒体的源代码,如下所示。- /**
- * Simplest Librtmp Send FLV
- *
- * 雷霄骅,张晖
- * leixiaohua1020@126.com
- * zhanghuicuc@gmail.com
- * 中国传媒大学/数字电视技术
- * Communication University of China / Digital TV Technology
- * http://blog.csdn.net/leixiaohua1020
- *
- * 本程序用于将FLV格式的视音频文件使用RTMP推送至RTMP流媒体服务器。
- * This program can send local flv file to net server as a rtmp live stream.
- */
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- #include <stdint.h>
- #ifndef WIN32
- #include <unistd.h>
- #endif
- #include "librtmp/rtmp_sys.h"
- #include "librtmp/log.h"
- #define HTON16(x) ((x>>8&0xff)|(x<<8&0xff00))
- #define HTON24(x) ((x>>16&0xff)|(x<<16&0xff0000)|(x&0xff00))
- #define HTON32(x) ((x>>24&0xff)|(x>>8&0xff00)|\
- (x<<8&0xff0000)|(x<<24&0xff000000))
- #define HTONTIME(x) ((x>>16&0xff)|(x<<16&0xff0000)|(x&0xff00)|(x&0xff000000))
- /*read 1 byte*/
- int ReadU8(uint32_t *u8,FILE*fp){
- if(fread(u8,1,1,fp)!=1)
- return 0;
- return 1;
- }
- /*read 2 byte*/
- int ReadU16(uint32_t *u16,FILE*fp){
- if(fread(u16,2,1,fp)!=1)
- return 0;
- *u16=HTON16(*u16);
- return 1;
- }
- /*read 3 byte*/
- int ReadU24(uint32_t *u24,FILE*fp){
- if(fread(u24,3,1,fp)!=1)
- return 0;
- *u24=HTON24(*u24);
- return 1;
- }
- /*read 4 byte*/
- int ReadU32(uint32_t *u32,FILE*fp){
- if(fread(u32,4,1,fp)!=1)
- return 0;
- *u32=HTON32(*u32);
- return 1;
- }
- /*read 1 byte,and loopback 1 byte at once*/
- int PeekU8(uint32_t *u8,FILE*fp){
- if(fread(u8,1,1,fp)!=1)
- return 0;
- fseek(fp,-1,SEEK_CUR);
- return 1;
- }
- /*read 4 byte and convert to time format*/
- int ReadTime(uint32_t *utime,FILE*fp){
- if(fread(utime,4,1,fp)!=1)
- return 0;
- *utime=HTONTIME(*utime);
- return 1;
- }
- int InitSockets()
- {
- WORD version;
- WSADATA wsaData;
- version=MAKEWORD(2,2);
- return (WSAStartup(version, &wsaData) == 0);
- }
- void CleanupSockets()
- {
- WSACleanup();
- }
- //Publish using RTMP_SendPacket()
- int publish_using_packet(){
- RTMP *rtmp=NULL;
- RTMPPacket *packet=NULL;
- uint32_t start_time=0;
- uint32_t now_time=0;
- //the timestamp of the previous frame
- long pre_frame_time=0;
- long lasttime=0;
- int bNextIsKey=1;
- uint32_t preTagsize=0;
- //packet attributes
- uint32_t type=0;
- uint32_t datalength=0;
- uint32_t timestamp=0;
- uint32_t streamid=0;
- FILE*fp=NULL;
- fp=fopen("cuc_ieschool.flv","rb");
- if (!fp){
- RTMP_LogPrintf("Open File Error.\n");
- CleanupSockets();
- return -1;
- }
- /* set log level */
- //RTMP_LogLevel loglvl=RTMP_LOGDEBUG;
- //RTMP_LogSetLevel(loglvl);
- if (!InitSockets()){
- RTMP_LogPrintf("Init Socket Err\n");
- return -1;
- }
- rtmp=RTMP_Alloc();
- RTMP_Init(rtmp);
- //set connection timeout,default 30s
- rtmp->Link.timeout=5;
- if(!RTMP_SetupURL(rtmp,"rtmp://localhost/publishlive/livestream"))
- {
- RTMP_Log(RTMP_LOGERROR,"SetupURL Err\n");
- RTMP_Free(rtmp);
- CleanupSockets();
- return -1;
- }
- //if unable,the AMF command would be 'play' instead of 'publish'
- RTMP_EnableWrite(rtmp);
- if (!RTMP_Connect(rtmp,NULL)){
- RTMP_Log(RTMP_LOGERROR,"Connect Err\n");
- RTMP_Free(rtmp);
- CleanupSockets();
- return -1;
- }
- if (!RTMP_ConnectStream(rtmp,0)){
- RTMP_Log(RTMP_LOGERROR,"ConnectStream Err\n");
- RTMP_Close(rtmp);
- RTMP_Free(rtmp);
- CleanupSockets();
- return -1;
- }
- packet=(RTMPPacket*)malloc(sizeof(RTMPPacket));
- RTMPPacket_Alloc(packet,1024*64);
- RTMPPacket_Reset(packet);
- packet->m_hasAbsTimestamp = 0;
- packet->m_nChannel = 0x04;
- packet->m_nInfoField2 = rtmp->m_stream_id;
- RTMP_LogPrintf("Start to send data ...\n");
- //jump over FLV Header
- fseek(fp,9,SEEK_SET);
- //jump over previousTagSizen
- fseek(fp,4,SEEK_CUR);
- start_time=RTMP_GetTime();
- while(1)
- {
- if((((now_time=RTMP_GetTime())-start_time)
- <(pre_frame_time)) && bNextIsKey){
- //wait for 1 sec if the send process is too fast
- //this mechanism is not very good,need some improvement
- if(pre_frame_time>lasttime){
- RTMP_LogPrintf("TimeStamp:%8lu ms\n",pre_frame_time);
- lasttime=pre_frame_time;
- }
- Sleep(1000);
- continue;
- }
- //not quite the same as FLV spec
- if(!ReadU8(&type,fp))
- break;
- if(!ReadU24(&datalength,fp))
- break;
- if(!ReadTime(×tamp,fp))
- break;
- if(!ReadU24(&streamid,fp))
- break;
- if (type!=0x08&&type!=0x09){
- //jump over non_audio and non_video frame,
- //jump over next previousTagSizen at the same time
- fseek(fp,datalength+4,SEEK_CUR);
- continue;
- }
- if(fread(packet->m_body,1,datalength,fp)!=datalength)
- break;
- packet->m_headerType = RTMP_PACKET_SIZE_LARGE;
- packet->m_nTimeStamp = timestamp;
- packet->m_packetType = type;
- packet->m_nBodySize = datalength;
- pre_frame_time=timestamp;
- if (!RTMP_IsConnected(rtmp)){
- RTMP_Log(RTMP_LOGERROR,"rtmp is not connect\n");
- break;
- }
- if (!RTMP_SendPacket(rtmp,packet,0)){
- RTMP_Log(RTMP_LOGERROR,"Send Error\n");
- break;
- }
- if(!ReadU32(&preTagsize,fp))
- break;
- if(!PeekU8(&type,fp))
- break;
- if(type==0x09){
- if(fseek(fp,11,SEEK_CUR)!=0)
- break;
- if(!PeekU8(&type,fp)){
- break;
- }
- if(type==0x17)
- bNextIsKey=1;
- else
- bNextIsKey=0;
- fseek(fp,-11,SEEK_CUR);
- }
- }
- RTMP_LogPrintf("\nSend Data Over\n");
- if(fp)
- fclose(fp);
- if (rtmp!=NULL){
- RTMP_Close(rtmp);
- RTMP_Free(rtmp);
- rtmp=NULL;
- }
- if (packet!=NULL){
- RTMPPacket_Free(packet);
- free(packet);
- packet=NULL;
- }
- CleanupSockets();
- return 0;
- }
- //Publish using RTMP_Write()
- int publish_using_write(){
- uint32_t start_time=0;
- uint32_t now_time=0;
- uint32_t pre_frame_time=0;
- uint32_t lasttime=0;
- int bNextIsKey=0;
- char* pFileBuf=NULL;
- //read from tag header
- uint32_t type=0;
- uint32_t datalength=0;
- uint32_t timestamp=0;
- RTMP *rtmp=NULL;
- FILE*fp=NULL;
- fp=fopen("cuc_ieschool.flv","rb");
- if (!fp){
- RTMP_LogPrintf("Open File Error.\n");
- CleanupSockets();
- return -1;
- }
- /* set log level */
- //RTMP_LogLevel loglvl=RTMP_LOGDEBUG;
- //RTMP_LogSetLevel(loglvl);
- if (!InitSockets()){
- RTMP_LogPrintf("Init Socket Err\n");
- return -1;
- }
- rtmp=RTMP_Alloc();
- RTMP_Init(rtmp);
- //set connection timeout,default 30s
- rtmp->Link.timeout=5;
- if(!RTMP_SetupURL(rtmp,"rtmp://localhost/publishlive/livestream"))
- {
- RTMP_Log(RTMP_LOGERROR,"SetupURL Err\n");
- RTMP_Free(rtmp);
- CleanupSockets();
- return -1;
- }
- RTMP_EnableWrite(rtmp);
- //1hour
- RTMP_SetBufferMS(rtmp, 3600*1000);
- if (!RTMP_Connect(rtmp,NULL)){
- RTMP_Log(RTMP_LOGERROR,"Connect Err\n");
- RTMP_Free(rtmp);
- CleanupSockets();
- return -1;
- }
- if (!RTMP_ConnectStream(rtmp,0)){
- RTMP_Log(RTMP_LOGERROR,"ConnectStream Err\n");
- RTMP_Close(rtmp);
- RTMP_Free(rtmp);
- CleanupSockets();
- return -1;
- }
- printf("Start to send data ...\n");
- //jump over FLV Header
- fseek(fp,9,SEEK_SET);
- //jump over previousTagSizen
- fseek(fp,4,SEEK_CUR);
- start_time=RTMP_GetTime();
- while(1)
- {
- if((((now_time=RTMP_GetTime())-start_time)
- <(pre_frame_time)) && bNextIsKey){
- //wait for 1 sec if the send process is too fast
- //this mechanism is not very good,need some improvement
- if(pre_frame_time>lasttime){
- RTMP_LogPrintf("TimeStamp:%8lu ms\n",pre_frame_time);
- lasttime=pre_frame_time;
- }
- Sleep(1000);
- continue;
- }
- //jump over type
- fseek(fp,1,SEEK_CUR);
- if(!ReadU24(&datalength,fp))
- break;
- if(!ReadTime(×tamp,fp))
- break;
- //jump back
- fseek(fp,-8,SEEK_CUR);
- pFileBuf=(char*)malloc(11+datalength+4);
- memset(pFileBuf,0,11+datalength+4);
- if(fread(pFileBuf,1,11+datalength+4,fp)!=(11+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,pFileBuf,11+datalength+4)){
- RTMP_Log(RTMP_LOGERROR,"Rtmp Write Error\n");
- break;
- }
- free(pFileBuf);
- pFileBuf=NULL;
- if(!PeekU8(&type,fp))
- break;
- if(type==0x09){
- if(fseek(fp,11,SEEK_CUR)!=0)
- break;
- if(!PeekU8(&type,fp)){
- break;
- }
- if(type==0x17)
- bNextIsKey=1;
- else
- bNextIsKey=0;
- fseek(fp,-11,SEEK_CUR);
- }
- }
- RTMP_LogPrintf("\nSend Data Over\n");
- if(fp)
- fclose(fp);
- if (rtmp!=NULL){
- RTMP_Close(rtmp);
- RTMP_Free(rtmp);
- rtmp=NULL;
- }
- if(pFileBuf){
- free(pFileBuf);
- pFileBuf=NULL;
- }
- CleanupSockets();
- return 0;
- }
- int main(int argc, char* argv[]){
- //2 Methods:
- publish_using_packet();
- //publish_using_write();
- return 0;
- }
运行结果
程序运行后,会将“cuc_ieschool.flv”文件以直播流的形式发布到“rtmp://localhost/publishlive/livestream”的URL。修改文件名称和RTMP的URL可以实现将任意flv文件发布到任意RTMP的URL。
下载
Simplest LibRTMP Example项目主页
SourceForge:https://sourceforge.net/projects/simplestlibrtmpexample/
Github:https://github.com/leixiaohua1020/simplest_librtmp_example
开源中国:http://git.oschina.net/leixiaohua1020/simplest_librtmp_example
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