RTMP 两种方式推流：推H.264、ACC和推FLV封装格式

一、RTMP推流方式一：推H.264、ACC
1、创建一个线程来初始化RTMP。

void RtmpPush::init() {LOGE("init()");mCallJava->onConnectint(THREAD_MAIN);pthread_create(&push_thread, NULL, callBackPush, this);}void *callBackPush(void *data)
{RtmpPush *rtmpPush = static_cast<RtmpPush *>(data);rtmpPush->startPushing = false;LOGE("callBackPush()");//RTMP 申请堆内存rtmpPush->rtmp = RTMP_Alloc();//RTMP 初始化RTMP_Init(rtmpPush->rtmp);rtmpPush->rtmp->Link.timeout = 10;rtmpPush->rtmp->Link.lFlags |= RTMP_LF_LIVE;//设置推流地址RTMP_SetupURL(rtmpPush->rtmp, rtmpPush->url);//打开输出模式，这里推流的时候.（拉流的时候可以不用开启）RTMP_EnableWrite(rtmpPush->rtmp);//连接服务器if(!RTMP_Connect(rtmpPush->rtmp, NULL)){//LOGE("can not connect the url");rtmpPush->mCallJava->onConnectFail("RTMPConnectsFaile");goto end;}if(!RTMP_ConnectStream(rtmpPush->rtmp, 0)){//LOGE("can not connect the stream of service");rtmpPush->mCallJava->onConnectFail("RTMPConnectStreamFaile");goto end;}rtmpPush->mCallJava->onConnectsuccess();LOGE("链接成功， 开始推流");rtmpPush->startPushing = true;rtmpPush->startTime = RTMP_GetTime();while(true){if(!rtmpPush->startPushing){break;}RTMPPacket *packet = NULL;packet = rtmpPush->queue->getRtmpPacket();if(packet != NULL){//发送数据包int result = RTMP_SendPacket(rtmpPush->rtmp, packet, 1);//LOGE("RTMP_SendPacket result is %d", result);if(!result){rtmpPush->mCallJava->onConnectFail("rtmpSocketDisconnect");goto end;}RTMPPacket_Free(packet);free(packet);packet = NULL;}}end:RTMP_Close(rtmpPush->rtmp);RTMP_Free(rtmpPush->rtmp);rtmpPush->rtmp = NULL;pthread_exit(&rtmpPush->push_thread);
}

2、RTMP发送SPS、PPS

void RtmpPush::pushSPSPPS(char *sps, int sps_len, char *pps, int pps_len) {int bodysize = sps_len + pps_len + 16;RTMPPacket *packet = static_cast<RTMPPacket *>(malloc(sizeof(RTMPPacket)));RTMPPacket_Alloc(packet, bodysize);RTMPPacket_Reset(packet);char *body = packet->m_body;int i = 0;body[i++] = 0x17;body[i++] = 0x00;body[i++] = 0x00;body[i++] = 0x00;body[i++] = 0x00;body[i++] = 0x01;body[i++] = sps[1];body[i++] = sps[2];body[i++] = sps[3];body[i++] = 0xFF;body[i++] = 0xE1;body[i++] = (sps_len >> 8) & 0xff;body[i++] = sps_len & 0xff;memcpy(&body[i], sps, sps_len);i += sps_len;body[i++] = 0x01;body[i++] = (pps_len >> 8) & 0xff;body[i++] = pps_len & 0xff;memcpy(&body[i], pps, pps_len);packet->m_packetType = RTMP_PACKET_TYPE_VIDEO;packet->m_nBodySize = bodysize;packet->m_nTimeStamp = 0;packet->m_hasAbsTimestamp = 0;packet->m_nChannel = 0x04;packet->m_headerType = RTMP_PACKET_SIZE_MEDIUM;packet->m_nInfoField2 = rtmp->m_stream_id;queue->putRtmpPacket(packet);
}

3、发送视频数据

void RtmpPush::pushVideoData(char *data, int data_len, bool keyframe) {int bodysize = data_len + 9;RTMPPacket *packet = static_cast<RTMPPacket *>(malloc(sizeof(RTMPPacket)));RTMPPacket_Alloc(packet, bodysize);RTMPPacket_Reset(packet);char *body = packet->m_body;int i = 0;if(keyframe){body[i++] = 0x17;} else{body[i++] = 0x27;}body[i++] = 0x01;body[i++] = 0x00;body[i++] = 0x00;body[i++] = 0x00;body[i++] = (data_len >> 24) & 0xff;body[i++] = (data_len >> 16) & 0xff;body[i++] = (data_len >> 8) & 0xff;body[i++] = data_len & 0xff;memcpy(&body[i], data, data_len);packet->m_packetType = RTMP_PACKET_TYPE_VIDEO;packet->m_nBodySize = bodysize;packet->m_nTimeStamp = RTMP_GetTime() - startTime;packet->m_hasAbsTimestamp = 0;packet->m_nChannel = 0x04;packet->m_headerType = RTMP_PACKET_SIZE_LARGE;packet->m_nInfoField2 = rtmp->m_stream_id;queue->putRtmpPacket(packet);
}

4、发送音频数据

void RtmpPush::pushAudioData(char *data, int data_len) {int bodysize = data_len + 2;RTMPPacket *packet = static_cast<RTMPPacket *>(malloc(sizeof(RTMPPacket)));RTMPPacket_Alloc(packet, bodysize);RTMPPacket_Reset(packet);char *body = packet->m_body;body[0] = 0xAF;body[1] = 0x01;memcpy(&body[2], data, data_len);packet->m_packetType = RTMP_PACKET_TYPE_AUDIO;packet->m_nBodySize = bodysize;packet->m_nTimeStamp = RTMP_GetTime() - startTime;packet->m_hasAbsTimestamp = 0;packet->m_nChannel = 0x04;packet->m_headerType = RTMP_PACKET_SIZE_LARGE;packet->m_nInfoField2 = rtmp->m_stream_id;queue->putRtmpPacket(packet);
}

二、RTMP推流方式二：推FLV封装格式

int RtmpPush::pushFlvData(char *data, int data_len) {if (data_len < 15) {return -1;}//packet attributesuint32_t type = 0;uint32_t datalength = 0;uint32_t timestamp = 0;uint32_t streamid = 0;memcpy(&type, data, 1);data++;memcpy(&datalength, data, 3);datalength = HTON24(datalength);data += 3;memcpy(&timestamp, data, 4);timestamp = HTONTIME(timestamp);data += 4;memcpy(&streamid, data, 3);streamid = HTON24(streamid);data += 3;//LOGE("解析包数据：%u,%u,%u,%u,%d",type, datalength, timestamp, streamid, data_len);if (type != 0x08 && type != 0x09) {return -2;}if (datalength != (data_len - 11 - 4)) {return -3;}RTMPPacket *packet = static_cast<RTMPPacket *>(malloc(sizeof(RTMPPacket)));RTMPPacket_Alloc(packet, 1024 * 64);RTMPPacket_Reset(packet);memcpy(packet->m_body, data, data_len - 11 - 4);packet->m_headerType = RTMP_PACKET_SIZE_LARGE;packet->m_nTimeStamp = timestamp;packet->m_packetType = type;packet->m_nBodySize = datalength;if(type == RTMP_PACKET_TYPE_AUDIO){packet->m_nChannel = 0x05;//audio}else if(type == RTMP_PACKET_TYPE_VIDEO){packet->m_nChannel = 0x04;//video}else if(type == RTMP_PACKET_TYPE_INFO){packet->m_nChannel = 0x03;//metaData}packet->m_nInfoField2 = rtmp->m_stream_id;queue->putRtmpPacket(packet);return 0;
}

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RTMP 两种方式推流：推H.264、ACC和推FLV封装格式

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