嗨,我想在DJI phantom 3 pro的视频流上使用OpenCv进行一些图像处理.不幸的是,这件事是必要的自己解码视频.我知道应该使用Media Codec Android类,但我不知道该怎么做.我看到了一些从视频文件中解码视频的例子,但我无法根据我的目标修改此代码.有人可以展示一些示例或教程怎么做？感谢帮助
@H_301_6@mReceivedVideoDataCallBack = new DJIReceivedVideoDataCallBack(){ @Override public void onResult(byte[] videoBuffer,int size){ //recvData = true; //DJI methods for decoding //mDjiGLSurfaceView.setDataToDecoder(videoBuffer,size); } };
最佳答案
像这样初始化视频回调
原文链接：https://www.f2er.com/android/429889.html@H_301_6@mReceivedVideoDataCallBack = new DJICamera.CameraReceivedVideoDataCallback() { @Override public void onResult(byte[] videoBuffer,int size) { if(mCodecManager != null){ // Send the raw H264 video data to codec manager for decoding mCodecManager.sendDataToDecoder(videoBuffer,size); }else { Log.e(TAG,"mCodecManager is null"); } } }
让您的活动实现TextureView.SurfaceTextureListener
并且对于TextureView mVideoSurface在初始化之后调用此行：
@H_301_6@mVideoSurface.setSurfaceTextureListener(this);
然后实施：
@H_301_6@ @Override public void onSurfaceTextureAvailable(SurfaceTexture surface,int width,int height) { Log.v(TAG,"onSurfaceTextureAvailable"); DJICamera camera = FPVDemoApplication.getCameraInstance(); if (mCodecManager == null && surface != null && camera != null) { //Normal init for the surface mCodecManager = new DJICodecManager(this,surface,width,height); Log.v(TAG,"Initialized CodecManager"); } } @Override public void onSurfaceTextureSizeChanged(SurfaceTexture surface,"onSurfaceTextureSizeChanged"); } @Override public boolean onSurfaceTextureDestroyed(SurfaceTexture surface) { Log.v(TAG,"onSurfaceTextureDestroyed"); if (mCodecManager != null) { mCodecManager.cleanSurface(); mCodecManager = null; } return false; } @Override public void onSurfaceTextureUpdated(SurfaceTexture surface) { final Bitmap image = mVideoSurface.getBitmap(); //Do whatever you want with the bitmap image here on every frame }
希望这可以帮助！
