Android(安卓)使用Rtmp音视频推流
16lz
2021-01-24
前言
本文介绍的是使用Android摄像头、麦克风采集的音、视频进行编码。然后通过librtmp推送到流媒体服务器上的功能。
我所使用的环境：Android Studio 2.2.3 、NDK13。
流程
使用到的Api
- 音视频采集用到的api有：Camera、AudioRecord
- 编码用的是系统提供的API:MediaCodec (硬编码)
- 推送使用的开源库:librtmp。
代码
ManActivity.java
public class MainActivity extends AppCompatActivity implements SurfaceHolder.Callback2 { static final int NAL_SLICE = 1; static final int NAL_SLICE_DPA = 2; static final int NAL_SLICE_DPB = 3; static final int NAL_SLICE_DPC = 4; static final int NAL_SLICE_IDR = 5; static final int NAL_SEI = 6; static final int NAL_SPS = 7; static final int NAL_PPS = 8; static final int NAL_AUD = 9; static final int NAL_FILLER = 12; private static final String TAG = "MainActivity"; public static final String url = "rtmp://192.168.155.1:1935/live/test"; private Button btnToggle; private SurfaceView mSurfaceView; private SurfaceHolder mSurfaceHolder; private Camera mCamera; private Camera.Size previewSize; private long presentationTimeUs; MediaCodec vencoder; private Thread recordThread; private boolean aLoop; private AudioRecord mAudioRecord; private byte[] aBuffer; private MediaCodec aencoder; private int aSampleRate; private int aChanelCount; private int colorFormat; private MediaCodec.BufferInfo aBufferInfo = new MediaCodec.BufferInfo(); private MediaCodec.BufferInfo vBufferInfo = new MediaCodec.BufferInfo(); private boolean isPublished; private RtmpPublisher mRtmpPublisher = new RtmpPublisher(); @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); initView(); } private void initView() { btnToggle = (Button) findViewById(R.id.btn_toggle); mSurfaceView = (SurfaceView) findViewById(R.id.surface_view); mSurfaceHolder = mSurfaceView.getHolder(); mSurfaceHolder.addCallback(this); btnToggle.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { switchPublish(); } }); } private void switchPublish() { if (isPublished) { stop(); } else { start(); } btnToggle.setText(isPublished ? "停止" : "开始"); } private void start() { //初始化 mRtmpPublisher.init(url, previewSize.width, previewSize.height, 5); isPublished = true; initAudioDevice(); try { vencoder = initVideoEncoder(); } catch (IOException e) { e.printStackTrace(); throw new RuntimeException("video encoder init fail"); } try { aencoder = initAudioEncoder(); } catch (IOException e) { e.printStackTrace(); throw new RuntimeException("audio encoder init fail"); } //开启录音 aLoop = true; recordThread = new Thread(fetchAudioRunnable()); presentationTimeUs = new Date().getTime() * 1000; mAudioRecord.startRecording(); recordThread.start(); if (aencoder != null) { aencoder.start(); } if (vencoder != null) { vencoder.start(); } } private void stop() { isPublished = false; mRtmpPublisher.stop(); aLoop = false; if (recordThread != null) { recordThread.interrupt(); } mAudioRecord.stop(); mAudioRecord.release(); vencoder.stop(); vencoder.release(); aencoder.stop(); aencoder.release(); } private Runnable fetchAudioRunnable() { return new Runnable() { @Override public void run() { fetchPcmFromDevice(); } }; } private void fetchPcmFromDevice() { Log.d(TAG, "录音线程开始"); while (aLoop && mAudioRecord != null && !Thread.interrupted()) { int size = mAudioRecord.read(aBuffer, 0, aBuffer.length); if (size < 0) { Log.i(TAG, "audio ignore ,no data to read"); break; } if (aLoop) { byte[] audio = new byte[size]; System.arraycopy(aBuffer, 0, audio, 0, size); onGetPcmFrame(audio); } } } private void initAudioDevice() { int[] sampleRates = {44100, 22050, 16000, 11025}; for (int sampleRate : sampleRates) { //编码制式 int audioFormat = AudioFormat.ENCODING_PCM_16BIT; // stereo 立体声， int channelConfig = AudioFormat.CHANNEL_CONFIGURATION_STEREO; int buffsize = 2 * AudioRecord.getMinBufferSize(sampleRate, channelConfig, audioFormat); mAudioRecord = new AudioRecord(MediaRecorder.AudioSource.MIC, sampleRate, channelConfig, audioFormat, buffsize); if (mAudioRecord.getState() != AudioRecord.STATE_INITIALIZED) { continue; } aSampleRate = sampleRate; aChanelCount = channelConfig == AudioFormat.CHANNEL_CONFIGURATION_STEREO ? 2 : 1; aBuffer = new byte[Math.min(4096, buffsize)]; } } private MediaCodec initAudioEncoder() throws IOException { MediaCodec aencoder = MediaCodec.createEncoderByType(MediaFormat.MIMETYPE_AUDIO_AAC); MediaFormat format = MediaFormat.createAudioFormat(MediaFormat.MIMETYPE_AUDIO_AAC, aSampleRate, aChanelCount); format.setInteger(KEY_MAX_INPUT_SIZE, 0); format.setInteger(KEY_BIT_RATE, 1000 * 30); aencoder.configure(format, null, null, MediaCodec.CONFIGURE_FLAG_ENCODE); return aencoder; } private MediaCodec initVideoEncoder() throws IOException { // 初始化 MediaCodecInfo mediaCodecInfo = getMediaCodecInfoByType(MediaFormat.MIMETYPE_VIDEO_AVC); colorFormat = getColorFormat(mediaCodecInfo); MediaCodec vencoder = MediaCodec.createByCodecName(mediaCodecInfo.getName()); MediaFormat format = MediaFormat.createVideoFormat(MediaFormat.MIMETYPE_VIDEO_AVC, previewSize.width, previewSize.height); format.setInteger(KEY_MAX_INPUT_SIZE, 0); format.setInteger(KEY_BIT_RATE, 700 * 1000); format.setInteger(KEY_COLOR_FORMAT, colorFormat); format.setInteger(KEY_FRAME_RATE, 20); format.setInteger(KEY_I_FRAME_INTERVAL, 5); vencoder.configure(format, null, null, CONFIGURE_FLAG_ENCODE); return vencoder; } public static MediaCodecInfo getMediaCodecInfoByType(String mimeType) { for (int i = 0; i < MediaCodecList.getCodecCount(); i++) { MediaCodecInfo codecInfo = MediaCodecList.getCodecInfoAt(i); if (!codecInfo.isEncoder()) { continue; } String[] types = codecInfo.getSupportedTypes(); for (int j = 0; j < types.length; j++) { if (types[j].equalsIgnoreCase(mimeType)) { return codecInfo; } } } return null; } public static int getColorFormat(MediaCodecInfo mediaCodecInfo) { int matchedForamt = 0; MediaCodecInfo.CodecCapabilities codecCapabilities = mediaCodecInfo.getCapabilitiesForType(MediaFormat.MIMETYPE_VIDEO_AVC); for (int i = 0; i < codecCapabilities.colorFormats.length; i++) { int format = codecCapabilities.colorFormats[i]; if (format >= codecCapabilities.COLOR_FormatYUV420Planar && format <= codecCapabilities.COLOR_FormatYUV420PackedSemiPlanar ) { if (format >= matchedForamt) { matchedForamt = format; } } } return matchedForamt; } private void initCamera() { openCamera(); setCameraParameters(); setCameraDisplayOrientation(this, Camera.CameraInfo.CAMERA_FACING_BACK, mCamera); try { mCamera.setPreviewDisplay(mSurfaceHolder); } catch (IOException e) { e.printStackTrace(); } mCamera.setPreviewCallbackWithBuffer(getPreviewCallback()); mCamera.addCallbackBuffer(new byte[calculateFrameSize(ImageFormat.NV21)]); mCamera.startPreview(); } private int calculateFrameSize(int format) { return previewSize.width * previewSize.height * ImageFormat.getBitsPerPixel(format) / 8; } public static void setCameraDisplayOrientation(Activity activity, int cameraId, android.hardware.Camera camera) { android.hardware.Camera.CameraInfo info = new android.hardware.Camera.CameraInfo(); android.hardware.Camera.getCameraInfo(cameraId, info); int rotation = activity.getWindowManager().getDefaultDisplay() .getRotation(); int degrees = 0; switch (rotation) { case Surface.ROTATION_0: degrees = 0; break; case Surface.ROTATION_90: degrees = 90; break; case Surface.ROTATION_180: degrees = 180; break; case Surface.ROTATION_270: degrees = 270; break; } int result; if (info.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) { result = (info.orientation + degrees) % 360; result = (360 - result) % 360; // compensate the mirror } else { // back-facing result = (info.orientation - degrees + 360) % 360; } camera.setDisplayOrientation(result); } private void setCameraParameters() { Camera.Parameters parameters = mCamera.getParameters(); List supportedPreviewSizes = parameters.getSupportedPreviewSizes(); for (Camera.Size size : supportedPreviewSizes ) { if (size.width >= 320 && size.width <= 720) { previewSize = size; Log.d(TAG, String.format("find preview size width=%d,height=%d", previewSize.width, previewSize.height)); break; } } int[] destRange = {25 * 1000, 45 * 1000}; List<int[]> supportedPreviewFpsRange = parameters.getSupportedPreviewFpsRange(); for (int[] range : supportedPreviewFpsRange ) { if (range[PREVIEW_FPS_MIN_INDEX] <= 45 * 1000 && range[PREVIEW_FPS_MAX_INDEX] >= 25 * 1000) { destRange = range; Log.d(TAG, String.format("find fps range :%s", Arrays.toString(destRange))); break; } } parameters.setPreviewSize(previewSize.width, previewSize.height); parameters.setPreviewFpsRange(destRange[PREVIEW_FPS_MIN_INDEX], destRange[PREVIEW_FPS_MAX_INDEX]); parameters.setFocusMode(FOCUS_MODE_AUTO); parameters.setPreviewFormat(ImageFormat.NV21); parameters.setRotation(onOrientationChanged(0)); mCamera.setParameters(parameters); } public int onOrientationChanged(int orientation) { android.hardware.Camera.CameraInfo info = new android.hardware.Camera.CameraInfo(); android.hardware.Camera.getCameraInfo(Camera.CameraInfo.CAMERA_FACING_BACK, info); orientation = (orientation + 45) / 90 * 90; int rotation = 0; if (info.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) { rotation = (info.orientation - orientation + 360) % 360; } else { // back-facing camera rotation = (info.orientation + orientation) % 360; } return rotation; } private void openCamera() { if (mCamera == null) { try { mCamera = Camera.open(); } catch (Exception e) { e.printStackTrace(); Toast.makeText(this, "打开摄像头失败", Toast.LENGTH_SHORT).show(); try { Thread.sleep(3000); } catch (InterruptedException e1) { e1.printStackTrace(); } throw new RuntimeException("打开摄像头失败", e); } } } @Override protected void onResume() { super.onResume(); initCamera(); } @Override protected void onPause() { super.onPause(); if (mCamera != null) { mCamera.setPreviewCallbackWithBuffer(null); mCamera.stopPreview(); mCamera.release(); mCamera = null; } } @Override public void surfaceRedrawNeeded(SurfaceHolder holder) { } @Override public void surfaceCreated(SurfaceHolder holder) { } @Override public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) { initCamera(); } @Override public void surfaceDestroyed(SurfaceHolder holder) { } public Camera.PreviewCallback getPreviewCallback() { return new Camera.PreviewCallback() { byte[] dstByte = new byte[calculateFrameSize(ImageFormat.NV21)]; @Override public void onPreviewFrame(byte[] data, Camera camera) { if (data != null) { if (isPublished) { // data 是Nv21 if (colorFormat == MediaCodecInfo.CodecCapabilities.COLOR_FormatYUV420SemiPlanar) { Yuv420Util.Nv21ToYuv420SP(data, dstByte, previewSize.width, previewSize.height); } else if (colorFormat == MediaCodecInfo.CodecCapabilities.COLOR_FormatYUV420Planar) { Yuv420Util.Nv21ToI420(data, dstByte, previewSize.width, previewSize.height); } else if (colorFormat == MediaCodecInfo.CodecCapabilities.COLOR_FormatYUV420Flexible) { // Yuv420_888 } else if (colorFormat == MediaCodecInfo.CodecCapabilities.COLOR_FormatYUV420PackedPlanar) { // Yuv420packedPlannar 和 yuv420sp很像 // 区别在于 加入 width = 4的话 y1,y2,y3 ,y4公用 u1v1 // 而 yuv420dp 则是 y1y2y5y6 共用 u1v1 //http://blog.csdn.net/jumper511/article/details/21719313 //这样处理的话颜色核能会有些失真。 Yuv420Util.Nv21ToYuv420SP(data, dstByte, previewSize.width, previewSize.height); } else { System.arraycopy(data, 0, dstByte, 0, data.length); } onGetVideoFrame(dstByte); } camera.addCallbackBuffer(data); } else { camera.addCallbackBuffer(new byte[calculateFrameSize(ImageFormat.NV21)]); } } }; } private void onGetVideoFrame(byte[] dstByte) { ByteBuffer[] inputBuffers = vencoder.getInputBuffers(); ByteBuffer[] outputBuffers = vencoder.getOutputBuffers(); int inputBufferId = vencoder.dequeueInputBuffer(-1); if (inputBufferId >= 0) { // fill inputBuffers[inputBufferId] with valid data ByteBuffer bb = inputBuffers[inputBufferId]; bb.clear(); bb.put(dstByte, 0, dstByte.length); long pts = new Date().getTime() * 1000 - presentationTimeUs; vencoder.queueInputBuffer(inputBufferId, 0, dstByte.length, pts, 0); } for (; ; ) { int outputBufferId = vencoder.dequeueOutputBuffer(vBufferInfo, 0); if (outputBufferId >= 0) { // outputBuffers[outputBufferId] is ready to be processed or rendered. ByteBuffer bb = outputBuffers[outputBufferId]; onEncodedAvcFrame(bb, vBufferInfo); vencoder.releaseOutputBuffer(outputBufferId, false); } if (outputBufferId < 0) { break; } } } private void onGetPcmFrame(byte[] data) { ByteBuffer[] inputBuffers = aencoder.getInputBuffers(); ByteBuffer[] outputBuffers = aencoder.getOutputBuffers(); int inputBufferId = aencoder.dequeueInputBuffer(-1); if (inputBufferId >= 0) { ByteBuffer bb = inputBuffers[inputBufferId]; bb.clear(); bb.put(data, 0, data.length); long pts = new Date().getTime() * 1000 - presentationTimeUs; aencoder.queueInputBuffer(inputBufferId, 0, data.length, pts, 0); } for (; ; ) { int outputBufferId = aencoder.dequeueOutputBuffer(aBufferInfo, 0); if (outputBufferId >= 0) { // outputBuffers[outputBufferId] is ready to be processed or rendered. ByteBuffer bb = outputBuffers[outputBufferId]; onEncodeAacFrame(bb, aBufferInfo); aencoder.releaseOutputBuffer(outputBufferId, false); } if (outputBufferId < 0) { break; } } } private void onEncodedAvcFrame(ByteBuffer bb, MediaCodec.BufferInfo vBufferInfo) { int offset = 4; //判断帧的类型 if (bb.get(2) == 0x01) { offset = 3; } int type = bb.get(offset) & 0x1f; if (type == NAL_SPS) { //[0, 0, 0, 1, 103, 66, -64, 13, -38, 5, -126, 90, 1, -31, 16, -115, 64, 0, 0, 0, 1, 104, -50, 6, -30] //打印发现这里将 SPS帧和 PPS帧合在了一起发送 // SPS为 [4，len-8] // PPS为后4个字节 //so . byte[] pps = new byte[4]; byte[] sps = new byte[vBufferInfo.size - 12]; bb.getInt();// 抛弃 0,0,0,1 bb.get(sps, 0, sps.length); bb.getInt(); bb.get(pps, 0, pps.length); Log.d(TAG, "解析得到 sps:" + Arrays.toString(sps) + ",PPS=" + Arrays.toString(pps)); mRtmpPublisher.sendSpsAndPps(sps, sps.length, pps, pps.length, vBufferInfo.presentationTimeUs / 1000); } else { byte[] bytes = new byte[vBufferInfo.size]; bb.get(bytes); mRtmpPublisher.sendVideoData(bytes, bytes.length, vBufferInfo.presentationTimeUs / 1000); } } private void onEncodeAacFrame(ByteBuffer bb, MediaCodec.BufferInfo aBufferInfo) { // 1.界定符 FF F1 // 2.加上界定符的前7个字节是帧描述信息 // 3.AudioDecoderSpecificInfo 长度为2个字节如果是44100 改值为0x1210 //http://blog.csdn.net/avsuper/article/details/24661533 //http://www.tuicool.com/articles/aYvmua if (aBufferInfo.size == 2) {// https://my.oschina.net/zhangxu0512/blog/204070// faacEncSetConfiguration(m_hEncoder, pConfiguration);// int ret = faacEncGetDecoderSpecificInfo(m_hEncoder, &m_pSpc, &m_nSpc);// //AAC sequence header// int[] mpeg4audio_sample_rates = {// 96000, 88200, 64000, 48000, 44100, 32000,// 24000, 22050, 16000, 12000, 11025, 8000, 7350// };//// int m_keyframe[] = new int[2];// //get keyframe info.// int index;// for (index = 0; index < 16; index++) {// if (aSampleRate == mpeg4audio_sample_rates[index]) {// break;// }// }// m_keyframe[0] = 0x02 << 3 | index >> 1;// m_keyframe[1] = (index & 0x01) << 7 | aChanelCount << 3;//// Log.d(TAG,"挂件"+Arrays.toString(m_keyframe)); // 我打印发现，这里应该已经是吧关键帧计算好了，所以我们直接发送 byte[] bytes = new byte[2]; bb.get(bytes); mRtmpPublisher.sendAacSpec(bytes,2); }else{ byte[] bytes = new byte[aBufferInfo.size]; bb.get(bytes); mRtmpPublisher.sendAacData(bytes,bytes.length,aBufferInfo.presentationTimeUs/1000); } } } MainActivity 中的代码主要是采集视频、音频进行编码。然后调用jni方法进行发送。
在c层。我封装了一个类用来发送音视频数据：
class Rtmp {private: int width; int height; int timeOut; std::string url; long startTime; RTMP *rtmp;public: /** * 初始化 */ virtual int init(std::string url, int w, int h, int timeOut); /** * 发送sps、pps 帧 */ virtual int sendSpsAndPps(BYTE *sps, int spsLen, BYTE *pps, int ppsLen, long timestamp); /** * 发送视频帧 */ virtual int sendVideoData(BYTE *data, int len, long timestamp); /** * 发送音频关键帧 */ virtual int sendAacSpec(BYTE *data, int len); /** * 发送音频数据 */ virtual int sendAacData(BYTE *data, int len,long timestamp); /** * 释放资源 */ virtual int stop() const; virtual ~Rtmp();};实现：
//// Created by Administrator on 1/16/2017.//#include "Rtmp.h"#include "jni.h"#include "lang.h"#define RTMP_HEAD_SIZE (sizeof(RTMPPacket)+RTMP_MAX_HEADER_SIZE)#define NAL_SLICE 1#define NAL_SLICE_DPA 2#define NAL_SLICE_DPB 3#define NAL_SLICE_DPC 4#define NAL_SLICE_IDR 5#define NAL_SEI 6#define NAL_SPS 7#define NAL_PPS 8#define NAL_AUD 9#define NAL_FILLER 12#define STREAM_CHANNEL_METADATA 0x03#define STREAM_CHANNEL_VIDEO 0x04#define STREAM_CHANNEL_AUDIO 0x05int Rtmp::init(std::string url, int w, int h, int timeOut) { this->url = url; this->width = w; this->height = h; this->timeOut = timeOut; RTMP_LogSetLevel(RTMP_LOGDEBUG); rtmp = RTMP_Alloc(); RTMP_Init(rtmp); rtmp->Link.timeout = timeOut; RTMP_SetupURL(rtmp, (char *) url.c_str()); RTMP_EnableWrite(rtmp); if (RTMP_Connect(rtmp, NULL) <= 0) { LOGD("RTMP_Connect error"); return -1; } if (RTMP_ConnectStream(rtmp, 0) <= 0) { LOGD("RTMP_ConnectStream error"); return -1; } return 0;}int Rtmp::sendSpsAndPps(BYTE *sps, int spsLen, BYTE *pps, int ppsLen, long timestamp) { int i; RTMPPacket *packet = (RTMPPacket *) malloc(RTMP_HEAD_SIZE + 1024); memset(packet, 0, RTMP_HEAD_SIZE); packet->m_body = (char *) packet + RTMP_HEAD_SIZE; BYTE *body = (BYTE *) packet->m_body; i = 0; body[i++] = 0x17; //1:keyframe 7:AVC body[i++] = 0x00; // AVC sequence header body[i++] = 0x00; body[i++] = 0x00; body[i++] = 0x00; //fill in 0 /*AVCDecoderConfigurationRecord*/ body[i++] = 0x01; body[i++] = sps[1]; //AVCProfileIndecation body[i++] = sps[2]; //profile_compatibilty body[i++] = sps[3]; //AVCLevelIndication body[i++] = 0xff;//lengthSizeMinusOne /*SPS*/ body[i++] = 0xe1; body[i++] = (spsLen >> 8) & 0xff; body[i++] = spsLen & 0xff; /*sps data*/ memcpy(&body[i], sps, spsLen); i += spsLen; /*PPS*/ body[i++] = 0x01; /*sps data length*/ body[i++] = (ppsLen >> 8) & 0xff; body[i++] = ppsLen & 0xff; memcpy(&body[i], pps, ppsLen); i += ppsLen; packet->m_packetType = RTMP_PACKET_TYPE_VIDEO; packet->m_nBodySize = i; packet->m_nChannel = 0x04; packet->m_nTimeStamp = 0; packet->m_hasAbsTimestamp = 0; packet->m_headerType = RTMP_PACKET_SIZE_MEDIUM; packet->m_nInfoField2 = rtmp->m_stream_id; /*发送*/ if (RTMP_IsConnected(rtmp)) { RTMP_SendPacket(rtmp, packet, TRUE); } free(packet); return 0;}int Rtmp::sendVideoData(BYTE *buf, int len, long timestamp) { int type; /*去掉帧界定符*/ if (buf[2] == 0x00) {/*00 00 00 01*/ buf += 4; len -= 4; } else if (buf[2] == 0x01) { buf += 3; len - 3; } type = buf[0] & 0x1f; RTMPPacket *packet = (RTMPPacket *) malloc(RTMP_HEAD_SIZE + len + 9); memset(packet, 0, RTMP_HEAD_SIZE); packet->m_body = (char *) packet + RTMP_HEAD_SIZE; packet->m_nBodySize = len + 9; /* send video packet*/ BYTE *body = (BYTE *) packet->m_body; memset(body, 0, len + 9); /*key frame*/ body[0] = 0x27; if (type == NAL_SLICE_IDR) { body[0] = 0x17; //关键帧 } body[1] = 0x01;/*nal unit*/ body[2] = 0x00; body[3] = 0x00; body[4] = 0x00; body[5] = (len >> 24) & 0xff; body[6] = (len >> 16) & 0xff; body[7] = (len >> 8) & 0xff; body[8] = (len) & 0xff; /*copy data*/ memcpy(&body[9], buf, len); packet->m_hasAbsTimestamp = 0; packet->m_packetType = RTMP_PACKET_TYPE_VIDEO; packet->m_nInfoField2 = rtmp->m_stream_id; packet->m_nChannel = 0x04; packet->m_headerType = RTMP_PACKET_SIZE_LARGE; packet->m_nTimeStamp = timestamp; if (RTMP_IsConnected(rtmp)) { RTMP_SendPacket(rtmp, packet, TRUE); } free(packet); return 0;}int Rtmp::sendAacSpec(BYTE *data, int spec_len) { RTMPPacket *packet; BYTE *body; int len = spec_len;//spec len 是2 packet = (RTMPPacket *) malloc(RTMP_HEAD_SIZE + len + 2); memset(packet, 0, RTMP_HEAD_SIZE); packet->m_body = (char *) packet + RTMP_HEAD_SIZE; body = (BYTE *) packet->m_body; /*AF 00 +AAC RAW data*/ body[0] = 0xAF; body[1] = 0x00; memcpy(&body[2], data, len);/*data 是AAC sequeuece header数据*/ packet->m_packetType = RTMP_PACKET_TYPE_AUDIO; packet->m_nBodySize = len + 2; packet->m_nChannel = STREAM_CHANNEL_AUDIO; packet->m_nTimeStamp = 0; packet->m_hasAbsTimestamp = 0; packet->m_headerType = RTMP_PACKET_SIZE_LARGE; packet->m_nInfoField2 = rtmp->m_stream_id; if (RTMP_IsConnected(rtmp)) { RTMP_SendPacket(rtmp, packet, TRUE); } free(packet); return 0;}int Rtmp::sendAacData(BYTE *data, int len, long timeOffset) {// data += 5;// len += 5; if (len > 0) { RTMPPacket *packet; BYTE *body; packet = (RTMPPacket *) malloc(RTMP_HEAD_SIZE + len + 2); memset(packet, 0, RTMP_HEAD_SIZE); packet->m_body = (char *) packet + RTMP_HEAD_SIZE; body = (BYTE *) packet->m_body; /*AF 00 +AAC Raw data*/ body[0] = 0xAF; body[1] = 0x01; memcpy(&body[2], data, len); packet->m_packetType = RTMP_PACKET_TYPE_AUDIO; packet->m_nBodySize = len + 2; packet->m_nChannel = STREAM_CHANNEL_AUDIO; packet->m_nTimeStamp = timeOffset; packet->m_hasAbsTimestamp = 0; packet->m_headerType = RTMP_PACKET_SIZE_LARGE; packet->m_nInfoField2 = rtmp->m_stream_id; if (RTMP_IsConnected(rtmp)) { RTMP_SendPacket(rtmp, packet, TRUE); } LOGD("send packet body[0]=%x,body[1]=%x", body[0], body[1]); free(packet); } return 0;}int Rtmp::stop() const { RTMP_Close(rtmp); RTMP_Free(rtmp); return 0;}Rtmp::~Rtmp() { stop(); }观看
我们如果测试的话，我们首先需要搭建一个流媒体服务器。可以在本地安装一个Adobe Media Server 。然后打开它其中的一个示例。比如我安装在D盘Program File 文件夹下
那么我打开D:\Program Files\Adobe\Adobe Media Server 5\samples\videoPlayer\videoplayer.html
输入推流的地址就可以播放了。当然手机和电脑记得处于同一个局域网。
完整代码地址 https://github.com/blueberryCoder/LiveStream
更多相关文章
- 浅谈 MVP in Android
- 史上最全的Android文章精选合集
- Mac和Windows上Android(安卓)Studio常用的快捷键
- 感受LiveData 与 ViewModel结合之美
- Android中xml解析--实现软件升级功能
- Android(安卓)Glide 基于4.8.0的源码分析
- Android(安卓)进程间通信的几种实现方式
- Android如何播放GIF动画
- Android_UI_实现TabHost的两种方法