252 lines
6.8 KiB
C++
252 lines
6.8 KiB
C++
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#include "RtmpPuller2.h"
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#include "Debuger.h"
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RtmpPuller2::RtmpPuller2()
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{
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mAccBuffer = new uint8_t[3000];
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}
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RtmpPuller2::~RtmpPuller2()
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{
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}
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int ThreadPull(RtmpPuller2*p) {
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while (p->Status() == RtmpPuller2::CAP_STATUS::RUNNING) {
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p->PullData();
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Sleep(10);
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}
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return 0;
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}
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// <20>ر<EFBFBD><D8B1><EFBFBD><EFBFBD><EFBFBD>
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int RtmpPuller2::StopPull()
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{
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mStatus = STOP;
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this->mThread->join();
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RTMP_Close(mRtmp);
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RTMP_Free(mRtmp);
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return 0;
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}
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int RtmpPuller2::StartPull()
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{
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if(this->mStatus == CONNECTED) {
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mStatus = RUNNING;
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this->mThread = new std::thread(ThreadPull, this);
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this->mThread->get_id();
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}
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else {
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}
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return 0;
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}
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FILE *fp = nullptr;
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int RtmpPuller2::PullData()
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{
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RTMPPacket packet = { 0 };
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// Parse rtmp stream to h264 and aac
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uint8_t nalu_header[4] = { 0x00, 0x00, 0x00, 0x01 };
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int ret = RTMP_ReadPacket(mRtmp, &packet);
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if (ret < 0)
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return ret;
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if (nullptr == fp) {
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fp = fopen("src.aac", "wb");
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}
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if (RTMPPacket_IsReady(&packet)) {
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// Process packet, eg: set chunk size, set bw, ...
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RTMP_ClientPacket(mRtmp, &packet);
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if (packet.m_packetType == RTMP_PACKET_TYPE_VIDEO) {
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bool keyframe = 0x17 == packet.m_body[0] ? true : false;
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bool sequence = 0x00 == packet.m_body[1];
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printf("keyframe=%s, sequence=%s\n", keyframe ? "true" : "false", sequence ? "true" : "false");
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// SPS/PPS sequence
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if (sequence) {
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uint32_t offset = 10;
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uint32_t sps_num = packet.m_body[offset++] & 0x1f;
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for (int i = 0; i < sps_num; i++) {
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uint8_t ch0 = packet.m_body[offset];
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uint8_t ch1 = packet.m_body[offset + 1];
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uint32_t sps_len = ((ch0 << 8) | ch1);
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offset += 2;
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packet.m_body[offset - 1] = 0x01;
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packet.m_body[offset - 2] = 0x00;
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packet.m_body[offset - 3] = 0x00;
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packet.m_body[offset - 4] = 0x00;
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if (mObserver.size() > 0) {
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for (auto itr = this->mObserver.begin(); itr != mObserver.end(); itr++) {
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RtmpPullObserver *p = (RtmpPullObserver *)*itr;
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if (p->mObserverType == RtmpPullObserver::Observer_Video) {
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p->OnRtmpFrame(packet.m_body + offset - 4, sps_len + 4);
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}
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}
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}
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// Write sps data
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//fwrite(nalu_header, sizeof(uint8_t), 4, _file_ptr);
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//fwrite(packet.m_body + offset, sizeof(uint8_t), sps_len, _file_ptr);
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offset += sps_len;
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}
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uint32_t pps_num = packet.m_body[offset++] & 0x1f;
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for (int i = 0; i < pps_num; i++) {
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uint8_t ch0 = packet.m_body[offset];
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uint8_t ch1 = packet.m_body[offset + 1];
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uint32_t pps_len = ((ch0 << 8) | ch1);
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offset += 2;
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packet.m_body[offset - 1] = 0x01;
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packet.m_body[offset - 2] = 0x00;
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packet.m_body[offset - 3] = 0x00;
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packet.m_body[offset - 4] = 0x00;
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if (mObserver.size() > 0) {
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for (auto itr = this->mObserver.begin(); itr != mObserver.end(); itr++) {
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RtmpPullObserver *p = (RtmpPullObserver *)*itr;
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if (p->mObserverType == RtmpPullObserver::Observer_Video) {
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p->OnRtmpFrame(packet.m_body + offset - 4, pps_len + 4);
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}
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}
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}
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// Write pps data
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offset += pps_len;
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}
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}
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// Nalu frames
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else {
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uint32_t offset = 5;
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uint8_t ch0 = packet.m_body[offset];
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uint8_t ch1 = packet.m_body[offset + 1];
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uint8_t ch2 = packet.m_body[offset + 2];
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uint8_t ch3 = packet.m_body[offset + 3];
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uint32_t data_len = ((ch0 << 24) | (ch1 << 16) | (ch2 << 8) | ch3);
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offset += 4;
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packet.m_body[offset - 1] = 0x01;
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packet.m_body[offset - 2] = 0x00;
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packet.m_body[offset - 3] = 0x00;
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packet.m_body[offset - 4] = 0x00;
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if (mObserver.size() > 0) {
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for (auto itr = this->mObserver.begin(); itr != mObserver.end(); itr++) {
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RtmpPullObserver *p = (RtmpPullObserver *)*itr;
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if (p->mObserverType == RtmpPullObserver::Observer_Video) {
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p->OnRtmpFrame(packet.m_body + offset - 4, data_len + 4);
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}
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}
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}
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// Write nalu data(already started with '0x00,0x00,0x00,0x01')
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//fwrite(nalu_header, sizeof(uint8_t), 4, _file_ptr);
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offset += data_len;
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}
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}
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else if (packet.m_packetType == RTMP_PACKET_TYPE_AUDIO) {
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bool sequence = 0x00 == packet.m_body[1];
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printf("sequence=%s\n", sequence ? "true" : "false");
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// AAC sequence
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if (sequence) {
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uint8_t format = (packet.m_body[0] & 0xf0) >> 4;
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uint8_t samplerate = (packet.m_body[0] & 0x0c) >> 2;
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uint8_t sampledepth = (packet.m_body[0] & 0x02) >> 1;
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uint8_t type = packet.m_body[0] & 0x01;
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// sequence = packet.m_body[1];
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// AAC(AudioSpecificConfig)
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if (format == 10) {
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ch0 = packet.m_body[2];
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ch1 = packet.m_body[3];
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config = ((ch0 << 8) | ch1);
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object_type = (config & 0xF800) >> 11;
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sample_frequency_index = (config & 0x0780) >> 7;
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channels = (config & 0x78) >> 3;
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frame_length_flag = (config & 0x04) >> 2;
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depend_on_core_coder = (config & 0x02) >> 1;
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extension_flag = config & 0x01;
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}
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// Speex(Fix data here, so no need to parse...)
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else if (format == 11) {
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// 16 KHz, mono, 16bit/sample
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type = 0;
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sampledepth = 1;
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samplerate = 4;
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}
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}
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// Audio frames
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else {
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// ADTS(7 bytes) + AAC data
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uint32_t data_len = packet.m_nBodySize - 2 + 7;
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uint8_t adts[7];
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adts[0] = 0xff;
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adts[1] = 0xf1;
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adts[2] = ((object_type - 1) << 6) | (sample_frequency_index << 2)
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| (channels >> 2);
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adts[3] = ((channels & 3) << 6) + (data_len >> 11);
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adts[4] = (data_len & 0x7FF) >> 3;
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adts[5] = ((data_len & 7) << 5) + 0x1F;
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adts[6] = 0xfc;
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// Write audio frames
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fwrite(adts, sizeof(uint8_t), 7, fp);
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fwrite(packet.m_body + 2, sizeof(uint8_t), packet.m_nBodySize - 2, fp);
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fflush(fp);
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memcpy(mAccBuffer, adts, 7);
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memcpy(mAccBuffer + 7, packet.m_body + 2, packet.m_nBodySize - 2);
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if (mObserver.size() > 0) {
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for (auto itr = this->mObserver.begin(); itr != mObserver.end(); itr++) {
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RtmpPullObserver *p = (RtmpPullObserver *)*itr;
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if (p->mObserverType == RtmpPullObserver::Observer_Audio) {
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p->OnRtmpFrame(mAccBuffer, packet.m_nBodySize - 2 + 7);
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}
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}
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}
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}
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}
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RTMPPacket_Free(&packet);
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}
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return 0;
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}
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int RtmpPuller2::SetObserver(RtmpPuller2::RtmpPullObserver *p)
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{
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if (nullptr == p)
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return -1;
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mMux.lock();
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for (auto itr = this->mObserver.begin(); itr != mObserver.end(); itr++) {
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if (p == *itr) return 0;
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}
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this->mObserver.push_back(p);
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mMux.unlock();
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return 0;
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}
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RtmpPuller2::CAP_STATUS RtmpPuller2::Status()
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{
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return mStatus;
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}
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int RtmpPuller2::ConnectServer(string url)
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{
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mRtmp = RTMP_Alloc();
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RTMP_Init(mRtmp);
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if (RTMP_SetupURL(mRtmp, (char*)url.c_str()) == FALSE)
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{
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RTMP_Free(mRtmp);
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mStatus = FAIL;
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return -1;
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}
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/*<2A><><EFBFBD>ӷ<EFBFBD><D3B7><EFBFBD><EFBFBD><EFBFBD>*/
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if (RTMP_Connect(mRtmp, NULL) == FALSE)
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{
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RTMP_Free(mRtmp);
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mStatus = FAIL;
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return -1;
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}
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/*<2A><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>*/
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if (RTMP_ConnectStream(mRtmp, 0) == FALSE)
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{
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RTMP_Close(mRtmp);
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RTMP_Free(mRtmp);
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mStatus = FAIL;
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return -1;
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}
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mStatus = CONNECTED;
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return 0;
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}
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