文章【Android 的视频编码 H263 MP4V H264】的代码实现

最近很多同学问我SPS和PPS在那里设置，其实这篇文章只是我 上篇文章的一个简单实现 

 

具体情况情看看上一篇

 

http://blog.csdn.net/zblue78/archive/2010/12/15/6078040.aspx

 

 这里只用HTC的G7做了H264的程序，谅解！

 

csdn的资源慢了 粘代码算了

 

资源 http://download.csdn.net/source/2918751

 

 

 

欢迎大家经常访问我的blog http://blog.csdn.net/zblue78/

共同探讨，啥也不说的 直接上码

AndroidManifest.xml

 

<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.zjzhang" android:versionCode="1" android:versionName="1.0"> <application android:icon="@drawable/icon" android:label="@string/app_name" android:debuggable="true"> <activity android:name=".VideoCameraActivity" android:screenOrientation="landscape" android:label="@string/app_name"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> <uses-sdk android:minSdkVersion="3" /> <uses-permission android:name="android.permission.INTERNET"/> <uses-permission android:name="android.permission.CAMERA"/> <uses-permission android:name="android.permission.RECORD_VIDEO"/> <uses-permission android:name="android.permission.RECORD_AUDIO"/> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/> </manifest>

main.xml

 

<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" > <SurfaceView android:id="@+id/surface_camera" android:layout_width="176px" android:layout_height="144px" android:layout_alignParentRight="true" android:layout_alignParentTop="true" /> </LinearLayout>

 

package com.zjzhang; import java.io.DataInputStream; import java.io.File; import java.io.IOException; import java.io.InputStream; import java.io.RandomAccessFile; import android.app.Activity; import android.content.Context; import android.os.Bundle; import android.graphics.PixelFormat; import android.media.MediaRecorder; import android.net.LocalServerSocket; import android.net.LocalSocket; import android.net.LocalSocketAddress; import android.util.Log; import android.view.SurfaceHolder; import android.view.SurfaceView; import android.view.View; import android.view.Window; import android.view.WindowManager; public class VideoCameraActivity extends Activity implements SurfaceHolder.Callback, MediaRecorder.OnErrorListener, MediaRecorder.OnInfoListener { private static final int mVideoEncoder =MediaRecorder.VideoEncoder.H264; private static final String TAG = "VideoCamera"; LocalSocket receiver, sender; LocalServerSocket lss; private MediaRecorder mMediaRecorder = null; boolean mMediaRecorderRecording = false; private SurfaceView mSurfaceView = null; private SurfaceHolder mSurfaceHolder = null; Thread t; Context mContext = this; RandomAccessFile raf = null; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); getWindow().setFormat(PixelFormat.TRANSLUCENT); requestWindowFeature(Window.FEATURE_NO_TITLE); getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN); setContentView(R.layout.main); mSurfaceView = (SurfaceView) this.findViewById(R.id.surface_camera); SurfaceHolder holder = mSurfaceView.getHolder(); holder.addCallback(this); holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); mSurfaceView.setVisibility(View.VISIBLE); receiver = new LocalSocket(); try { lss = new LocalServerSocket("VideoCamera"); receiver.connect(new LocalSocketAddress("VideoCamera")); receiver.setReceiveBufferSize(500000); receiver.setSendBufferSize(500000); sender = lss.accept(); sender.setReceiveBufferSize(500000); sender.setSendBufferSize(500000); } catch (IOException e) { finish(); return; } } @Override public void onStart() { super.onStart(); } @Override public void onResume() { super.onResume(); } @Override public void onPause() { super.onPause(); if (mMediaRecorderRecording) { stopVideoRecording(); try { lss.close(); receiver.close(); sender.close(); } catch (IOException e) { e.printStackTrace(); } } finish(); } private void stopVideoRecording() { Log.d(TAG, "stopVideoRecording"); if (mMediaRecorderRecording || mMediaRecorder != null) { if (t != null) t.interrupt(); try { raf.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } releaseMediaRecorder(); } } private void startVideoRecording() { Log.d(TAG, "startVideoRecording"); (t = new Thread() { public void run() { int frame_size = 1024; byte[] buffer = new byte[1024 * 64]; int num, number = 0; InputStream fis = null; try { fis = receiver.getInputStream(); } catch (IOException e1) { return; } try { Thread.currentThread().sleep(500); } catch (InterruptedException e1) { e1.printStackTrace(); } number = 0; releaseMediaRecorder(); //如果是H264或是MPEG_4_SP的就要在这里找到相应的设置参数的流 //avcC box H264的设置参数 //esds box MPEG_4_SP 的设置参数 //其实 如果分辨率 等数值不变的话，这些参数是不会变化的， //那么我就只需要在第一次运行的时候确定就可以了 while (true) { try { num = fis.read(buffer, number, frame_size); number += num; if (num < frame_size) { break; } } catch (IOException e) { break; } } initializeVideo(); number = 0; // 重新启动捕获，以获取视频流 DataInputStream dis=new DataInputStream(fis); //读取最前面的32个自己的空头 try { dis.read(buffer,0,32); } catch (IOException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } try { File file = new File("/sdcard/stream.h264"); if (file.exists()) file.delete(); raf = new RandomAccessFile(file, "rw"); } catch (Exception ex) { Log.v("System.out", ex.toString()); } //这些参数要对应我现在的视频设置，如果想变化的话需要去重新确定， //当然不知道是不是不同的机器是不是一样，我这里只有一个HTC G7做测试。 byte[] h264sps={0x67,0x42,0x00,0x0C,(byte) 0x96,0x54,0x0B,0x04,(byte) 0xA2}; byte[] h264pps={0x68,(byte) 0xCE,0x38,(byte) 0x80}; byte[] h264head={0,0,0,1}; try { raf.write(h264head); raf.write(h264sps); raf.write(h264head); raf.write(h264pps); } catch (IOException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } while (true) { try { //读取每场的长度 int h264length=dis.readInt(); number =0; raf.write(h264head); while(number<h264length) { int lost=h264length-number; num = fis.read(buffer,0,frame_size<lost?frame_size:lost); Log.d(TAG,String.format("H264 %d,%d,%d", h264length,number,num)); number+=num; raf.write(buffer, 0, num); } } catch (IOException e) { break; } } } }).start(); } private boolean initializeVideo() { if (mSurfaceHolder==null) return false; mMediaRecorderRecording = true; if (mMediaRecorder == null) mMediaRecorder = new MediaRecorder(); else mMediaRecorder.reset(); mMediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA); mMediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP); mMediaRecorder.setVideoFrameRate(20); mMediaRecorder.setVideoSize(352, 288); mMediaRecorder.setVideoEncoder(mVideoEncoder); mMediaRecorder.setPreviewDisplay(mSurfaceHolder.getSurface()); mMediaRecorder.setMaxDuration(0); mMediaRecorder.setMaxFileSize(0); mMediaRecorder.setOutputFile(sender.getFileDescriptor()); try { mMediaRecorder.setOnInfoListener(this); mMediaRecorder.setOnErrorListener(this); mMediaRecorder.prepare(); mMediaRecorder.start(); } catch (IOException exception) { releaseMediaRecorder(); finish(); return false; } return true; } private void releaseMediaRecorder() { Log.v(TAG, "Releasing media recorder."); if (mMediaRecorder != null) { if (mMediaRecorderRecording) { try { mMediaRecorder.setOnErrorListener(null); mMediaRecorder.setOnInfoListener(null); mMediaRecorder.stop(); } catch (RuntimeException e) { Log.e(TAG, "stop fail: " + e.getMessage()); } mMediaRecorderRecording = false; } mMediaRecorder.reset(); mMediaRecorder.release(); mMediaRecorder = null; } } @Override public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { Log.d(TAG, "surfaceChanged"); mSurfaceHolder = holder; if (!mMediaRecorderRecording) { initializeVideo(); startVideoRecording(); } } @Override public void surfaceCreated(SurfaceHolder holder) { Log.d(TAG, "surfaceCreated"); mSurfaceHolder = holder; } @Override public void surfaceDestroyed(SurfaceHolder holder) { Log.d(TAG, "surfaceDestroyed"); mSurfaceHolder = null; } @Override public void onInfo(MediaRecorder mr, int what, int extra) { switch (what) { case MediaRecorder.MEDIA_RECORDER_INFO_UNKNOWN: Log.d(TAG, "MEDIA_RECORDER_INFO_UNKNOWN"); break; case MediaRecorder.MEDIA_RECORDER_INFO_MAX_DURATION_REACHED: Log.d(TAG, "MEDIA_RECORDER_INFO_MAX_DURATION_REACHED"); break; case MediaRecorder.MEDIA_RECORDER_INFO_MAX_FILESIZE_REACHED: Log.d(TAG, "MEDIA_RECORDER_INFO_MAX_FILESIZE_REACHED"); break; } } @Override public void onError(MediaRecorder mr, int what, int extra) { if (what == MediaRecorder.MEDIA_RECORDER_ERROR_UNKNOWN) { Log.d(TAG, "MEDIA_RECORDER_ERROR_UNKNOWN"); finish(); } } }