private Bitmap first; private void handleFrameData(byte[] data, MediaCodec.BufferInfo info) { //YUV420sp轉RGB數據 5-60ms ByteArrayOutputStream out = new ByteArrayOutputStream(); YuvImage yuvImage = new YuvImage(data, ImageFormat.NV21, srcWidth, srcHeight, null); yuvImage.compressToJpeg(new Rect(0, 0, srcWidth, srcHeight), 100, out); byte[] imageBytes = out.toByteArray(); //旋轉圖像,順便解決電腦上播放被旋轉90度的問題 20-50ms Bitmap image = BitmapFactory.decodeByteArray(imageBytes, 0, imageBytes.length); Bitmap bitmap = rotaingImageView(videoRotation, image); image.recycle(); //渲染文字 0-1ms Canvas canvas = new Canvas(bitmap); canvas.drawText(videoTimeFormat.format(videoFirstTime + info.presentationTimeUs / 1000), 10, 30, paint); //預覽處理幀 0-5ms first = bitmap; handler.sendEmptyMessage((int) (info.presentationTimeUs / 1000)); synchronized (MediaCodec.class) {//記得加鎖 timeDataContainer.add(new Frame(info, bitmap)); } } /* * 旋轉圖片 * @param angle * @param bitmap * @return Bitmap */ public Bitmap rotaingImageView(int angle, Bitmap bitmap) { //旋轉圖片 動作 Matrix matrix = new Matrix(); matrix.postRotate(angle); // 創建新的圖片 return Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), matrix, true); }

/** * 獲取夾了時間戳的的數據 * * @return */ private Frame getFrameData() { synchronized (MediaCodec.class) {//記得加鎖 if (timeDataContainer.isEmpty()) { return null; } //從隊列中獲取數據 Frame frame = timeDataContainer.remove(0);////取出后將此數據remove掉 既能保證PCM數據塊的取出順序 又能及時釋放內存 //轉回YUV420sp 120-160ms frame.data = getNV21(dstWidth, dstHeight, frame.bitmap); return frame; } } public static byte[] getNV21(int width, int height, Bitmap scaled) { int[] argb = new int[width * height]; scaled.getPixels(argb, 0, width, 0, 0, width, height); byte[] yuv = new byte[width * height * 3 / 2]; encodeYUV420SP(yuv, argb, width, height); scaled.recycle(); return yuv; } /** * 將bitmap里得到的argb數據轉成yuv420sp格式 * 這個yuv420sp數據就可以直接傳給MediaCodec,通過AvcEncoder間接進行編碼 * * @param yuv420sp 用來存放yuv420sp數據 * @param argb 傳入argb數據 * @param width 圖片width * @param height 圖片height */ public static void encodeYUV420SP(byte[] yuv420sp, int[] argb, int width, int height) { final int frameSize = width * height; int yIndex = 0; int uvIndex = frameSize; int a, R, G, B, Y, U, V; int index = 0; for (int j = 0; j < height; j++) { for (int i = 0; i < width; i++) {// a = (argb[index] & 0xff000000) >> 24; // a is not used obviously R = (argb[index] & 0xff0000) >> 16; G = (argb[index] & 0xff00) >> 8; B = (argb[index] & 0xff) >> 0; // well known RGB to YUV algorithm Y = ((66 * R + 129 * G + 25 * B + 128) >> 8) + 16; U = ((-38 * R - 74 * G + 112 * B + 128) >> 8) + 128; V = ((112 * R - 94 * G - 18 * B + 128) >> 8) + 128; // NV21 has a plane of Y and interleaved planes of VU each sampled by a factor of 2 // meaning for every 4 Y pixels there are 1 V and 1 U. Note the sampling is every other // pixel AND every other scanline. yuv420sp[yIndex++] = (byte) ((Y < 0) ? 0 : ((Y > 255) ? 255 : Y)); if (j % 2 == 0 && index % 2 == 0) {  yuv420sp[uvIndex++] = (byte) ((V < 0) ? 0 : ((V > 255) ? 255 : V));  yuv420sp[uvIndex++] = (byte) ((U < 0) ? 0 : ((U > 255) ? 255 : U)); } index++; } } }

 /** * 初始化編碼器 */ private void initMediaEncode(String mime) { try { MediaFormat format = MediaFormat.createVideoFormat(MediaFormat.MIMETYPE_VIDEO_AVC, dstWidth, dstHeight); format.setInteger(MediaFormat.KEY_BIT_RATE, 1024 * 512); format.setInteger(MediaFormat.KEY_FRAME_RATE, 27); format.setInteger(MediaFormat.KEY_COLOR_FORMAT, MediaCodecInfo.CodecCapabilities.COLOR_FormatYUV420Flexible);// format.setInteger(MediaFormat.KEY_COLOR_FORMAT, MediaCodecInfo.CodecCapabilities.COLOR_FormatYUV420Planar); format.setInteger(MediaFormat.KEY_I_FRAME_INTERVAL, 1); mediaEncode = MediaCodec.createEncoderByType(MediaFormat.MIMETYPE_VIDEO_AVC); mediaEncode.configure(format, null, null, MediaCodec.CONFIGURE_FLAG_ENCODE); } catch (IOException e) { e.printStackTrace(); } if (mediaEncode == null) { JLog.e(tag, "create mediaEncode failed"); return; } mediaEncode.start(); }

 case MediaCodec.INFO_OUTPUT_FORMAT_CHANGED: MediaFormat format = mediaDecode.getOutputFormat(); Log.d(tag, "New format " + format); if (format != null && format.containsKey(MediaFormat.KEY_COLOR_FORMAT)) { videoColorFormat = format.getInteger(MediaFormat.KEY_COLOR_FORMAT); Log.d(tag, "decode extract get videoColorFormat =" + videoColorFormat);//解碼得到視頻顏色格式 } initMediaEncode(videoColorFormat);//根據顏色格式初始化編碼器 break;

import android.annotation.TargetApi;import android.app.Service;import android.content.Intent;import android.graphics.Bitmap;import android.graphics.BitmapFactory;import android.graphics.Canvas;import android.graphics.Color;import android.graphics.ImageFormat;import android.graphics.Matrix;import android.graphics.Paint;import android.graphics.Rect;import android.graphics.YuvImage;import android.media.MediaCodec;import android.media.MediaCodecInfo;import android.media.MediaExtractor;import android.media.MediaFormat;import android.media.MediaMetadataRetriever;import android.media.MediaMuxer;import android.os.Binder;import android.os.Build;import android.os.IBinder;import android.os.Message;import android.support.annotation.Nullable;import android.widget.Toast;import java.io.ByteArrayOutputStream;import java.io.File;import java.io.IOException;import java.lang.ref.WeakReference;import java.nio.ByteBuffer;import java.text.SimpleDateFormat;import java.util.ArrayList;import java.util.List;/** * Created by user on 2016/8/13. */@TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR2)public class TestCodecService extends Service { private MediaExtractor extractor; private MediaMuxer muxer; private final static String tag = "px"; private final String TAG = this.getClass().getSimpleName(); private MediaFormat format; private int videoMaxInputSize = 0, videoRotation = 0; private long videoDuration; private boolean decodeOver = false, encoding = false, mCancel, mDelete; //視頻流在數據流中的序號 private int videoTrackIndex = -1; private MediaCodec mediaDecode, mediaEncode; private ByteBuffer[] decodeInputBuffers, decodeOutputBuffers; private ArrayList<Frame> timeDataContainer;//數據塊容器 private MediaCodec.BufferInfo decodeBufferInfo; private int srcWidth, srcHeight, dstWidth, dstHeight; private SimpleDateFormat videoTimeFormat; private int mProgress, mMax; private VideoCodecDao codecDao; //繪制時間戳的畫筆 private Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG); @Override public void onCreate() { super.onCreate(); JLog.d(TAG, "onCreate"); //視頻時間戳顯示格式 videoTimeFormat = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss"); timeDataContainer = new ArrayList<>(); //初始化畫筆工具 paint.setColor(Color.WHITE); paint.setTextSize(20); codecDao = VideoCodecDao.getInstance(JingRuiApp.getJRApplicationContext()); } @Override public void onDestroy() { super.onDestroy(); JLog.d(TAG, "onDestroy"); decodeOver = true; encoding = false; } private void init(String srcPath, String dstpath) { MediaMetadataRetriever mmr = new MediaMetadataRetriever(); mmr.setDataSource(srcPath); try {  srcWidth = Integer.parseInt(mmr.extractMetadata(MediaMetadataRetriever.METADATA_KEY_VIDEO_WIDTH));  srcHeight = Integer.parseInt(mmr.extractMetadata(MediaMetadataRetriever.METADATA_KEY_VIDEO_HEIGHT)); } catch (IllegalArgumentException e) {  e.printStackTrace(); } catch (IllegalStateException e) {  e.printStackTrace(); } try {  extractor = new MediaExtractor();  extractor.setDataSource(srcPath);  String mime = null;  for (int i = 0; i < extractor.getTrackCount(); i++) {  //獲取碼流的詳細格式/配置信息  MediaFormat format = extractor.getTrackFormat(i);  mime = format.getString(MediaFormat.KEY_MIME);  if (mime.startsWith("video/")) {   videoTrackIndex = i;   this.format = format;  } else if (mime.startsWith("audio/")) {   continue;  } else {   continue;  }  }  extractor.selectTrack(videoTrackIndex); //選擇讀取視頻數據  //創建合成器  srcWidth = format.getInteger(MediaFormat.KEY_WIDTH);  dstHeight = format.getInteger(MediaFormat.KEY_HEIGHT);  videoMaxInputSize = format.getInteger(MediaFormat.KEY_MAX_INPUT_SIZE);  videoDuration = format.getLong(MediaFormat.KEY_DURATION);  //videoRotation = format.getInteger(MediaFormat.KEY_ROTATION);  videoRotation = 90;//低版本不支持獲取旋轉,手動寫入了  if (videoRotation == 90) {  dstWidth = srcHeight;  dstHeight = srcWidth;  } else if (videoRotation == 0) {  dstWidth = srcWidth;  dstHeight = srcHeight;  }  mMax = (int) (videoDuration / 1000);  //int bit = this.format.getInteger(MediaFormat.KEY_BIT_RATE);  JLog.d(tag, "videoWidth=" + srcWidth + ",videoHeight=" + srcHeight + ",videoMaxInputSize=" + videoMaxInputSize + ",videoDuration=" + videoDuration + ",videoRotation=" + videoRotation);  //寫入文件的合成器  muxer = new MediaMuxer(dstpath, MediaMuxer.OutputFormat.MUXER_OUTPUT_MPEG_4);  //向合成器添加視頻軌  //videoTrackIndex = muxer.addTrack(format);  MediaCodec.BufferInfo videoInfo = new MediaCodec.BufferInfo();  videoInfo.presentationTimeUs = 0;  initMediaDecode(mime);  initMediaEncode(mime); } catch (IOException e) {  e.printStackTrace(); } } //抽出每一幀 @TargetApi(Build.VERSION_CODES.LOLLIPOP) private void extract() { int inputIndex = mediaDecode.dequeueInputBuffer(-1);//獲取可用的inputBuffer -1代表一直等待，0表示不等待 建議-1,避免丟幀 if (inputIndex < 0) {  JLog.d("px", "=========== code over =======");  return; } ByteBuffer inputBuffer = decodeInputBuffers[inputIndex];//拿到inputBuffer inputBuffer.clear(); int length = extractor.readSampleData(inputBuffer, 0); //讀取一幀數據,放到解碼隊列 if (length < 0) {  JLog.d("px", "extract Over");  decodeOver = true;  return; } else {  //獲取時間戳  long presentationTimeUs = extractor.getSampleTime();  MediaCodec.BufferInfo videoInfo = new MediaCodec.BufferInfo();  videoInfo.offset = 0;  videoInfo.size = length;  //獲取幀類型，只能識別是否為I幀  videoInfo.flags = extractor.getSampleFlags();  videoInfo.presentationTimeUs = extractor.getSampleTime();  //解碼視頻  decode(videoInfo, inputIndex);  extractor.advance(); //移動到下一幀 } } private void handleFrameData(byte[] data, MediaCodec.BufferInfo info) { //YUV420sp轉RGB數據 5-60ms ByteArrayOutputStream out = new ByteArrayOutputStream(); YuvImage yuvImage = new YuvImage(data, ImageFormat.NV21, srcWidth, srcHeight, null); yuvImage.compressToJpeg(new Rect(0, 0, srcWidth, srcHeight), 100, out); byte[] imageBytes = out.toByteArray(); //旋轉圖像 20-50ms Bitmap image = BitmapFactory.decodeByteArray(imageBytes, 0, imageBytes.length); Bitmap bitmap = rotaingImageView(videoRotation, image); image.recycle(); //渲染文字 0-1ms Canvas canvas = new Canvas(bitmap); canvas.drawText(videoTimeFormat.format(mVideo.videoCreateTime + info.presentationTimeUs / 1000), 10, 30, paint); //通知進度 0-5ms mProgress = (int) (info.presentationTimeUs / 1000); if (mListener != null) {  mListener.onProgress(mProgress, mMax); } synchronized (MediaCodec.class) {//記得加鎖  timeDataContainer.add(new Frame(info, bitmap)); } } public static byte[] getNV21(int width, int height, Bitmap scaled) { int[] argb = new int[width * height]; scaled.getPixels(argb, 0, width, 0, 0, width, height); byte[] yuv = new byte[width * height * 3 / 2]; encodeYUV420SP(yuv, argb, width, height); scaled.recycle(); return yuv; } /** * 將bitmap里得到的argb數據轉成yuv420sp格式 * 這個yuv420sp數據就可以直接傳給MediaCodec,通過AvcEncoder間接進行編碼 * * @param yuv420sp 用來存放yuv420sp數據 * @param argb 傳入argb數據 * @param width 圖片width * @param height 圖片height */ public static void encodeYUV420SP(byte[] yuv420sp, int[] argb, int width, int height) { final int frameSize = width * height; int yIndex = 0; int uvIndex = frameSize; int a, R, G, B, Y, U, V; int index = 0; for (int j = 0; j < height; j++) {  for (int i = 0; i < width; i++) {//  a = (argb[index] & 0xff000000) >> 24; // a is not used obviously  R = (argb[index] & 0xff0000) >> 16;  G = (argb[index] & 0xff00) >> 8;  B = (argb[index] & 0xff) >> 0;  // well known RGB to YUV algorithm  Y = ((66 * R + 129 * G + 25 * B + 128) >> 8) + 16;  U = ((-38 * R - 74 * G + 112 * B + 128) >> 8) + 128;  V = ((112 * R - 94 * G - 18 * B + 128) >> 8) + 128;  // NV21 has a plane of Y and interleaved planes of VU each sampled by a factor of 2  // meaning for every 4 Y pixels there are 1 V and 1 U. Note the sampling is every other  // pixel AND every other scanline.  yuv420sp[yIndex++] = (byte) ((Y < 0) ? 0 : ((Y > 255) ? 255 : Y));  if (j % 2 == 0 && index % 2 == 0) {   yuv420sp[uvIndex++] = (byte) ((V < 0) ? 0 : ((V > 255) ? 255 : V));   yuv420sp[uvIndex++] = (byte) ((U < 0) ? 0 : ((U > 255) ? 255 : U));  }  index++;  } } } /** * 獲取夾了時間戳的的數據 * * @return */ private Frame getFrameData() { synchronized (MediaCodec.class) {//記得加鎖  if (timeDataContainer.isEmpty()) {  return null;  }  //從隊列中獲取數據  Frame frame = timeDataContainer.remove(0);////取出后將此數據remove掉 既能保證PCM數據塊的取出順序 又能及時釋放內存  //轉回YUV420sp 120-160ms  frame.data = getNV21(dstWidth, dstHeight, frame.bitmap);  return frame; } } /* * 旋轉圖片 * @param angle * @param bitmap * @return Bitmap */ public Bitmap rotaingImageView(int angle, Bitmap bitmap) { //旋轉圖片 動作 Matrix matrix = new Matrix(); matrix.postRotate(angle); // 創建新的圖片 return Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), matrix, true); } /** * 初始化解碼器 */ private void initMediaDecode(String mime) { try {  //創建解碼器  mediaDecode = MediaCodec.createDecoderByType(mime);  mediaDecode.configure(format, null, null, 0); } catch (IOException e) {  e.printStackTrace(); } if (mediaDecode == null) {  JLog.e(tag, "create mediaDecode failed");  return; } mediaDecode.start(); decodeInputBuffers = mediaDecode.getInputBuffers(); decodeOutputBuffers = mediaDecode.getOutputBuffers(); decodeBufferInfo = new MediaCodec.BufferInfo();//用于描述解碼得到的byte[]數據的相關信息 } /** * 初始化編碼器 */ private void initMediaEncode(String mime) { try {  MediaFormat format = MediaFormat.createVideoFormat(MediaFormat.MIMETYPE_VIDEO_AVC, dstWidth, dstHeight);  format.setInteger(MediaFormat.KEY_BIT_RATE, 1024 * 512);  format.setInteger(MediaFormat.KEY_FRAME_RATE, 27);  format.setInteger(MediaFormat.KEY_COLOR_FORMAT, MediaCodecInfo.CodecCapabilities.COLOR_FormatYUV420Flexible);//  format.setInteger(MediaFormat.KEY_COLOR_FORMAT, MediaCodecInfo.CodecCapabilities.COLOR_FormatYUV420Planar);  format.setInteger(MediaFormat.KEY_I_FRAME_INTERVAL, 1);  mediaEncode = MediaCodec.createEncoderByType(MediaFormat.MIMETYPE_VIDEO_AVC);  mediaEncode.configure(format, null, null, MediaCodec.CONFIGURE_FLAG_ENCODE); } catch (IOException e) {  e.printStackTrace(); } if (mediaEncode == null) {  JLog.e(tag, "create mediaEncode failed");  return; } mediaEncode.start(); } @TargetApi(Build.VERSION_CODES.LOLLIPOP) private void decode(MediaCodec.BufferInfo videoInfo, int inputIndex) { mediaDecode.queueInputBuffer(inputIndex, 0, videoInfo.size, videoInfo.presentationTimeUs, videoInfo.flags);//通知MediaDecode解碼剛剛傳入的數據 //獲取解碼得到的byte[]數據 參數BufferInfo上面已介紹 10000同樣為等待時間 同上-1代表一直等待，0代表不等待。此處單位為微秒 //此處建議不要填-1 有些時候并沒有數據輸出，那么他就會一直卡在這 等待 MediaCodec.BufferInfo bufferInfo = new MediaCodec.BufferInfo(); int outputIndex = mediaDecode.dequeueOutputBuffer(bufferInfo, 50000); switch (outputIndex) {  case MediaCodec.INFO_OUTPUT_BUFFERS_CHANGED:  JLog.d(tag, "INFO_OUTPUT_BUFFERS_CHANGED");  decodeOutputBuffers = mediaDecode.getOutputBuffers();  break;  case MediaCodec.INFO_OUTPUT_FORMAT_CHANGED:  JLog.d(tag, "New format " + mediaDecode.getOutputFormat());  break;  case MediaCodec.INFO_TRY_AGAIN_LATER:  JLog.d(tag, "dequeueOutputBuffer timed out!");  break;  default:  ByteBuffer outputBuffer;  byte[] frame;  while (outputIndex >= 0) {//每次解碼完成的數據不一定能一次吐出 所以用while循環，保證解碼器吐出所有數據   outputBuffer = decodeOutputBuffers[outputIndex];//拿到用于存放PCM數據的Buffer   frame = new byte[bufferInfo.size];//BufferInfo內定義了此數據塊的大小   outputBuffer.get(frame);//將Buffer內的數據取出到字節數組中   outputBuffer.clear();//數據取出后一定記得清空此Buffer MediaCodec是循環使用這些Buffer的，不清空下次會得到同樣的數據   handleFrameData(frame, videoInfo);//自己定義的方法，供編碼器所在的線程獲取數據,下面會貼出代碼   mediaDecode.releaseOutputBuffer(outputIndex, false);//此操作一定要做，不然MediaCodec用完所有的Buffer后 將不能向外輸出數據   outputIndex = mediaDecode.dequeueOutputBuffer(decodeBufferInfo, 50000);//再次獲取數據，如果沒有數據輸出則outputIndex=-1 循環結束  }  break; } } /** * 編碼 */ private void encode() { //獲取解碼器所在線程輸出的數據 byte[] chunkTime; Frame frame = getFrameData(); if (frame == null) {  return; } chunkTime = frame.data; int inputIndex = mediaEncode.dequeueInputBuffer(-1);//同解碼器 if (inputIndex < 0) {  JLog.d("px", "dequeueInputBuffer return inputIndex " + inputIndex + ",then break");  mediaEncode.signalEndOfInputStream(); } ByteBuffer inputBuffer = mediaEncode.getInputBuffers()[inputIndex];//同解碼器 inputBuffer.clear();//同解碼器 inputBuffer.put(chunkTime);//PCM數據填充給inputBuffer inputBuffer.limit(frame.videoInfo.size); mediaEncode.queueInputBuffer(inputIndex, 0, chunkTime.length, frame.videoInfo.presentationTimeUs, frame.videoInfo.flags);//通知編碼器 編碼 MediaCodec.BufferInfo bufferInfo = new MediaCodec.BufferInfo(); int outputIndex = mediaEncode.dequeueOutputBuffer(bufferInfo, 50000);//同解碼器 switch (outputIndex) {  case MediaCodec.INFO_OUTPUT_BUFFERS_CHANGED:  JLog.d(tag, "INFO_OUTPUT_BUFFERS_CHANGED");  break;  case MediaCodec.INFO_OUTPUT_FORMAT_CHANGED:  MediaFormat outputFormat = mediaEncode.getOutputFormat();  outputFormat.setInteger(MediaFormat.KEY_ROTATION, videoRotation);  JLog.d(tag, "mediaEncode find New format " + outputFormat);  //向合成器添加視頻軌  videoTrackIndex = muxer.addTrack(outputFormat);  muxer.start();  break;  case MediaCodec.INFO_TRY_AGAIN_LATER:  JLog.d(tag, "dequeueOutputBuffer timed out!");  break;  default:  ByteBuffer outputBuffer;  while (outputIndex >= 0) {//同解碼器   outputBuffer = mediaEncode.getOutputBuffers()[outputIndex];//拿到輸出Buffer   muxer.writeSampleData(videoTrackIndex, outputBuffer, bufferInfo);//   JLog.d("px", "writeSampleData:" + bufferInfo.size);   mediaEncode.releaseOutputBuffer(outputIndex, false);   outputIndex = mediaEncode.dequeueOutputBuffer(bufferInfo, 50000);  }  break; } } private void release() { //全部寫完后釋放MediaMuxer和MediaExtractor extractor.release(); mediaDecode.release(); mediaEncode.release(); muxer.stop(); muxer.release(); } private DecodeRunnable decodeRunnable; private EncodeRunnable encodeRunnable; /** * 解碼線程 */ private class DecodeRunnable extends Thread { @Override public void run() {  decodeOver = false;  while (!decodeOver) {  try {   extract();  } catch (Exception e) {   //抓住刪除文件造成的異常   JLog.e("px", e.toString());  }  synchronized (encodeRunnable) {   encodeRunnable.notify();  }  } } } /** * 編碼線程 */ private class EncodeRunnable extends Thread { @Override public void run() {  encoding = true;  while (encoding) {  if (timeDataContainer.isEmpty()) {   if (decodeOver) {//解碼完成,緩存也清空了   break;   }   try {   synchronized (encodeRunnable) {    wait();   }   } catch (InterruptedException e) {   e.printStackTrace();   }  } else {   encode();  }  }  release();  encoding = false;  handler.sendEmptyMessage(-2);//發送消息完成任務 } } android.os.Handler handler = new android.os.Handler() { @Override public void handleMessage(Message msg) {  switch (msg.what) {  case -2:   onComplete();   break;  default:   break;  } } }; public void onComplete() { if (mDelete) {//delete請求,是在cancel事件前提下  mDelete = false;  new File(mVideo.srcPath).delete();//主動請求刪除,刪源文件,和數據庫  codecDao.deleteItem(mVideo);  JLog.d("px", "delete file " + mVideo.srcPath); } else {  mVideo.finish = mCancel ? 0 : 100;  codecDao.createOrUpdate(mVideo);//更新數據庫狀態為已完成,或閑置中 } if (mCancel) {//中途取消  mCancel = false;  new File(mVideo.dstPath).delete();//取消,刪除目標文件  JLog.d("px", "delete file " + mVideo.dstPath); } else {//順利完成  new File(mVideo.srcPath).delete();//成功,刪除源文件  JLog.d("px", "delete file " + mVideo.srcPath); } if (mListener != null) {  mListener.onCodecFinish(mVideo); } if (!videos.isEmpty()) {  VideoCodecModel video = videos.remove(0);  start(video); } } class Frame { MediaCodec.BufferInfo videoInfo; byte[] data; Bitmap bitmap; public Frame(MediaCodec.BufferInfo videoInfo, Bitmap bitmap) {  this.videoInfo = videoInfo;  this.bitmap = bitmap; } } private long getInterval() { //用第一二幀獲取幀間隔 long videoSampleTime; ByteBuffer buffer = ByteBuffer.allocate(1024 * 512); //獲取源視頻相鄰幀之間的時間間隔。(1) extractor.readSampleData(buffer, 0); //skip first I frame if (extractor.getSampleFlags() == MediaExtractor.SAMPLE_FLAG_SYNC)  extractor.advance(); extractor.readSampleData(buffer, 0); long firstVideoPTS = extractor.getSampleTime(); extractor.advance(); extractor.readSampleData(buffer, 0); long SecondVideoPTS = extractor.getSampleTime(); videoSampleTime = Math.abs(SecondVideoPTS - firstVideoPTS); JLog.d(tag, "videoSampleTime is " + videoSampleTime); return videoSampleTime; } @Override public int onStartCommand(Intent intent, int flags, int startId) { JLog.d(TAG, "onStartCommand"); super.onStartCommand(intent, flags, startId); if (intent == null) {  return START_NOT_STICKY; } int action = intent.getIntExtra("action", 0); if (action == REQUEST_CODEC) {  VideoCodecModel video = (VideoCodecModel) intent.getSerializableExtra("video");  video = codecDao.addItem(video);  if (!encoding) {  start(video);  } else {  videos.add(video);  } } else if (action == REQUEST_CODEC_CANCEL) {  VideoCodecModel video = (VideoCodecModel) intent.getSerializableExtra("video");  mDelete = intent.getBooleanExtra("delete", false);//是否刪除舊文件  JLog.d("px", "----- onStartCommand action " + action + " is delete?" + mDelete);  mBinder.cancel(video); } return START_NOT_STICKY; } @Nullable @Override public IBinder onBind(Intent intent) { JLog.d(TAG, "onBind"); return mBinder; } private CodecBinder mBinder = new CodecBinder(); private VideoCodecModel mVideo; //video下載的任務隊列 private List<VideoCodecModel> videos = new ArrayList<>(); public static final int REQUEST_CODEC = 0x183; public static final int REQUEST_CODEC_CANCEL = 0x184; public class CodecBinder extends Binder { /**  * @param video  * @return 是否可以執行, 或等待執行  */ public boolean start(VideoCodecModel video) {  video = codecDao.addItem(video);  if (!encoding) {  TestCodecService.this.start(video);  } else {  videos.add(video);  }  return !encoding; } public void setOnProgressChangeListener(OnProgressChangeListener l) {  mListener = l; } public VideoCodecModel getCurrentVideo() {  return mVideo; } public void cancel(VideoCodecModel video) {  if (mVideo.equals(video)) {//正在處理  decodeOver = true;//控制解碼線程結束  encoding = false;//控制編碼線程結束  mCancel = true;//控制結束后刪除文件等  } else {//視頻沒有正在處理  boolean flag = videos.remove(video);  if (flag) {   JLog.d("px", "cancel render task sucess");  } else {   //并沒有這個任務   JLog.d("px", "cancel render task fail，seems this video not in renderring queen");  }  //刪除源文件  if (mDelete) {   mDelete = false;   new File(video.srcPath).delete();   codecDao.deleteItem(video);  }  } } public List<VideoCodecModel> getVideoList() {  return videos; } public void removeListener() {  mListener = null; } } private void start(VideoCodecModel video) { if (video == null) {  return; } if (!new File(video.srcPath).exists()) {  Toast.makeText(this, "該視頻緩存文件可能已經被刪除", Toast.LENGTH_SHORT).show();  video.finish = -100;  codecDao.createOrUpdate(video);  return; } mVideo = video; if (mListener != null) {  mListener.onCodecStart(mVideo); } mVideo.finish = 50;//改成處理中 codecDao.createOrUpdate(mVideo); Runnable runnable = new Runnable() {  @Override  public void run() {  init(mVideo.srcPath, mVideo.dstPath);  decodeRunnable = new DecodeRunnable();  decodeRunnable.start();  encodeRunnable = new EncodeRunnable();  encodeRunnable.start();  } }; AsyncTaskExecutor.getExecutor().execute(runnable); } private OnProgressChangeListener mListener; public interface OnProgressChangeListener { void onProgress(int progress, int max); void onCodecStart(VideoCodecModel video); void onCodecFinish(VideoCodecModel video); }}//這是模型類import com.j256.ormlite.field.DatabaseField;import com.j256.ormlite.table.DatabaseTable;import java.io.Serializable;/** * Created by user on 2016/8/29. */@DatabaseTable(tableName = "video_codec_task")public class VideoCodecModel implements Serializable { private static final long serialVersionUID = -1307249622002520298L; @DatabaseField public String srcPath; @DatabaseField public String dstPath; @DatabaseField public long videoCreateTime; @DatabaseField(generatedId = true) public int id; //0為被限制的狀態,50為渲染中,或渲染隊列中,100為已完成,-100為已刪除, @DatabaseField public int finish = 0; @DatabaseField public String serno; //操作是用到,不需要存數據庫 public boolean select; public VideoCodecModel(String srcPath, String dstPath, long videoCreateTime) { this.srcPath = srcPath; this.videoCreateTime = videoCreateTime; this.dstPath = dstPath; } public VideoCodecModel() { } public String getSrcPath() { return srcPath; } public void setSrcPath(String srcPath) { this.srcPath = srcPath; } public String getDstPath() { return dstPath; } public void setDstPath(String dstPath) { this.dstPath = dstPath; } public long getVideoCreateTime() { return videoCreateTime; } public void setVideoCreateTime(long videoCreateTime) { this.videoCreateTime = videoCreateTime; } public boolean isSelect() { return select; } public void setSelect(boolean select) { this.select = select; } @Override public boolean equals(Object o) { if (this == o) return true; if (!(o instanceof VideoCodecModel)) return false; VideoCodecModel that = (VideoCodecModel) o; if (videoCreateTime != that.videoCreateTime) return false; if (!srcPath.equals(that.srcPath)) return false; return dstPath.equals(that.dstPath); }}//用來查看水印任務完成狀態,和監控Service運行的界面Activity,,Activity的打開與否,不影響服務的運行import android.annotation.TargetApi;import android.app.ProgressDialog;import android.content.ComponentName;import android.content.Context;import android.content.DialogInterface;import android.content.Intent;import android.content.ServiceConnection;import android.net.Uri;import android.os.AsyncTask;import android.os.Build;import android.os.Bundle;import android.os.IBinder;import android.os.Message;import android.support.annotation.Nullable;import android.util.Log;import android.view.Gravity;import android.view.MenuItem;import android.view.View;import android.view.ViewGroup;import android.widget.AdapterView;import android.widget.BaseAdapter;import android.widget.CheckBox;import android.widget.CompoundButton;import android.widget.LinearLayout;import android.widget.ListView;import android.widget.PopupMenu;import android.widget.ProgressBar;import android.widget.TextView;import ...import java.io.File;import java.lang.ref.WeakReference;import java.text.SimpleDateFormat;import java.util.ArrayList;import java.util.Date;import java.util.List;/** * Created by user on 2016/8/29. */public class ShowCodecActivity extends BaseActivity implements TestCodecService.OnProgressChangeListener, View.OnClickListener { private TextView noneTipsView; private List<VideoCodecModel> videos = new ArrayList<>(), cordingVideos; private ListView listView; private BaseAdapter adapter; private View firstTips; @Nullable VideoCodecModel curShowVideo, curRenderVideo; TestCodecService.CodecBinder binder; private ProgressBar progressBar; ServiceConnection connection; VideoCodecDao codecDao; private SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss"); private boolean mEditMode = false; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_show_codec); setTitle("簽約視頻列表"); initView(); if (getIntent() != null) {  curShowVideo = (VideoCodecModel) getIntent().getSerializableExtra("video"); } codecDao = VideoCodecDao.getInstance(this); final Intent intent = new Intent(this, TestCodecService.class); connection = new ServiceConnection() {  @Override  public void onServiceConnected(ComponentName name, IBinder service) {  Log.d("px", "onServiceConnected");  binder = (TestCodecService.CodecBinder) service;  binder.setOnProgressChangeListener(ShowCodecActivity.this);  videos.clear();  curRenderVideo = binder.getCurrentVideo();  cordingVideos = binder.getVideoList();  videos.addAll(codecDao.queryAll());  notifyChange();  }  @Override  public void onServiceDisconnected(ComponentName name) {  } }; bindService(intent, connection, Context.BIND_AUTO_CREATE); } private void notifyChange() { if (adapter == null) {  adapter = new BaseAdapter() {  @Override  public int getCount() {   return videos.size();  }  @Override  public VideoCodecModel getItem(int position) {   return videos.get(position);  }  @Override  public long getItemId(int position) {   return 0;  }  @Override  public View getView(int position, View convertView, ViewGroup parent) {   final Holder holder;   if (convertView == null) {   convertView = View.inflate(ShowCodecActivity.this, R.layout.item_show_codec, null);   holder = new Holder();   holder.bar = (ProgressBar) convertView.findViewById(R.id.pb_codec);   holder.status = (TextView) convertView.findViewById(R.id.status);   holder.serno = (TextView) convertView.findViewById(R.id.serno);   holder.select = convertView.findViewById(R.id.select);   holder.time = (TextView) convertView.findViewById(R.id.time);   holder.operate = (TextView) convertView.findViewById(R.id.operate);   holder.checkBox = (CheckBox) convertView.findViewById(R.id.cb_select);   convertView.setTag(holder);   } else {   holder = (Holder) convertView.getTag();   }   final VideoCodecModel video = getItem(position);   if (video.finish == 100) {   holder.status.setText("已完成");   holder.operate.setVisibility(View.VISIBLE);   holder.operate.setText("操作");   } else if (video.finish == -100) {   holder.status.setText("已刪除");   holder.operate.setVisibility(View.INVISIBLE);   } else if (video.equals(curRenderVideo)) {   progressBar = holder.bar;   holder.status.setText("處理中");   holder.operate.setVisibility(View.INVISIBLE);   } else if (cordingVideos.contains(video)) {   holder.status.setText("等待中");   holder.operate.setVisibility(View.VISIBLE);   holder.operate.setText("取消");   } else {   holder.status.setText("未處理");   holder.operate.setVisibility(View.VISIBLE);   holder.operate.setText("開始");   }   holder.operate.setOnClickListener(new View.OnClickListener() {   @Override   public void onClick(View v) {    if (video.finish == 100) {    operate(holder.status, video);    } else if (video.finish == -100) {    return;    } else if (video.equals(curRenderVideo)) {//已經在編碼中,不可操作    return;    } else if (cordingVideos.contains(video)) {//已經在編碼隊列中,可取消    binder.cancel(video);    holder.status.setText("未處理");    holder.operate.setVisibility(View.VISIBLE);    holder.operate.setText("開始");    } else {    boolean immedia = binder.start(video);    if (immedia) {     holder.status.setText("處理中");     holder.operate.setVisibility(View.INVISIBLE);    } else {     holder.status.setText("等待中");     holder.operate.setVisibility(View.VISIBLE);     holder.operate.setText("取消");    }    }   }   });   holder.select.setVisibility(video.equals(curShowVideo) ? View.VISIBLE : View.GONE);   holder.serno.setText(video.serno);   holder.time.setText(dateFormat.format(new Date(video.videoCreateTime)));   holder.checkBox.setVisibility(mEditMode ? View.VISIBLE : View.GONE);   holder.checkBox.setChecked(video.isSelect());   holder.checkBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {   @Override   public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {    video.setSelect(isChecked);   }   });   return convertView;  }  };  listView.setAdapter(adapter); } else {  adapter.notifyDataSetChanged(); } noneTipsView.setVisibility(videos.isEmpty() ? View.VISIBLE : View.GONE); more.setVisibility(mEditMode ? View.VISIBLE : View.GONE); back.setVisibility(mEditMode ? View.INVISIBLE : View.VISIBLE); checkBox.setVisibility(mEditMode ? View.VISIBLE : View.GONE); } class Holder { ProgressBar bar; TextView status, serno, time, operate; View select; CheckBox checkBox; } private void initView() { listView = (ListView) findViewById(R.id.lv_codec); noneTipsView = (TextView) findViewById(R.id.tv_none); listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {  @Override  public void onItemClick(AdapterView<?> parent, View view, int position, long id) {  VideoCodecModel video = videos.get(position);  operate(view, video);  } }); listView.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {  @Override  public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {  if (mEditMode) {   return false;  }  mEditMode = true;  //啟動編輯模式不記住從前的選中狀態  for (VideoCodecModel video : videos) {   if (video.select)   video.select = false;  }  checkBox.setChecked(false);  notifyChange();  return true;  } }); firstTips = findViewById(R.id.ll_tips); boolean visable = Preferences.getBoolean("firstShowCodec", true); firstTips.setVisibility(visable ? View.VISIBLE : View.GONE); if (visable)  findViewById(R.id.btn_noshow).setOnClickListener(new View.OnClickListener() {  @Override  public void onClick(View v) {   Preferences.put("firstShowCodec", false);   firstTips.setVisibility(View.GONE);  }  }); checkBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {  @Override  public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {  for (VideoCodecModel model : videos) {   model.setSelect(isChecked);  }  notifyChange();  } }); more.setText("操作"); more.setOnClickListener(this); } private void operate(View view, final VideoCodecModel video) { if (video.finish != 100) {  return; } PopupMenu popupMenu = new PopupMenu(ShowCodecActivity.this, view); popupMenu.getMenu().add(1, 0, 0, "預覽或發送"); popupMenu.getMenu().add(1, 1, 1, "刪除"); popupMenu.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {  @Override  public boolean onMenuItemClick(MenuItem item) {  switch (item.getItemId()) {   case 0:   previewVideo(video.dstPath);   break;   case 1:   File file = new File(video.dstPath);   if (file.exists()) {    file.delete();   }   codecDao.deleteItem(video);   videos.remove(video);   if (cordingVideos.contains(video)) {    binder.cancel(video);   }   notifyChange();   break;  }  return true;  } }); popupMenu.show(); } @Override public void onProgress(int progress, int max) { if (progressBar != null) {  progressBar.setMax(max);  progressBar.setProgress(progress); } } @Override public void onCodecStart(VideoCodecModel video) { JLog.d("px", "onCodecStart"); curRenderVideo = video; int index = videos.indexOf(video); if (index >= 0) {  View child = listView.getChildAt(index);  Holder holder = (Holder) child.getTag();  holder.status.setText("處理中");  holder.operate.setVisibility(View.INVISIBLE);  progressBar = holder.bar; } } @Override public void onCodecFinish(VideoCodecModel video) { JLog.d("px", "onCodecFinish"); if (progressBar != null) {  progressBar.setProgress(0); } int index = videos.indexOf(video); videos.get(index).finish = 100; if (index >= 0) {  View child = listView.getChildAt(index);  Holder holder = (Holder) child.getTag();  holder.status.setText("已完成");  holder.operate.setVisibility(View.VISIBLE);  holder.operate.setText("操作");  progressBar = null; } } @Override protected void onDestroy() { if (binder != null)  binder.removeListener(); unbindService(connection); super.onDestroy(); } private void previewVideo(String filePath) { //預覽錄像 Intent intent = new Intent(Intent.ACTION_VIEW); String type = "video/mp4"; Uri uri = Uri.parse("file://" + filePath); intent.setDataAndType(uri, type); startActivity(intent); } @Override public void onBackPressed() { if (mEditMode) {  mEditMode = false;  notifyChange();  return; } super.onBackPressed(); } @Override public void onClick(View v) { switch (v.getId()) {  case R.id.more:  PopupMenu menu = new PopupMenu(this, v);//  menu.getMenu().add(1, 0, 0, "發送");  menu.getMenu().add(1, 1, 1, "刪除");  menu.getMenu().add(1, 2, 2, "取消");  menu.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {   @Override   public boolean onMenuItemClick(MenuItem item) {   switch (item.getItemId()) {    case 0:    break;    case 1:    deleteSelect();    break;    case 2:    mEditMode = false;    notifyChange();    break;   }   return true;   }  });  menu.show();  break; } } //刪除所選 private void deleteSelect() { final ProgressDialog dialog = ProgressDialog.show(this, null, null); AsyncTask<String, String, Boolean> task = new AsyncTask<String, String, Boolean>() {  @Override  protected Boolean doInBackground(String... params) {  boolean has = false;//是否選到可以刪除的,有可能并未有任何選擇  for (VideoCodecModel video : videos) {   if (video.select) {   File file;   if (video.finish == 100) {    file = new File(video.dstPath);   } else {    file = new File(video.srcPath);   }   if (file.exists()) {    file.delete();   }   codecDao.deleteItem(video);   if (!has) {    has = true;   }   }  }  if (has) {   videos.clear();   videos.addAll(codecDao.queryAll());  }  return has;  }  @Override  protected void onPostExecute(Boolean s) {  mEditMode = false;  notifyChange();  dialog.dismiss();  } }; task.executeOnExecutor(AsyncTaskExecutor.getExecutor()); }}