mediacodec

Preambule: This may sound like a very specific question, but this is actually a go / no go to build an API 16+ Android application using MediaCodec that is compatible with most phone. I have an application with a h.264 MediaCodec that receives data from a buffer - and not a surface since I'm doing a lot of manipulations on the image. When creating the Encoder , I iterate through the list of possible encoders from the phone to make sure I'm using a proprietary encoder if any. This part is not a problem. The problem is that each encoder has its color format preference. This may lead to color

I'm manually reading a RTP/H264 stream and pass the H264 frames to the Android MediaCodec. I use the "markerBit" as a border for the frames. The MediaCodec is tied to a OpenGL Texture (SurfaceTexture). In general everything works fine. But the Decoder appears to buffer frames. If I put a frame in the decoder it is not rendered immediately to the texture. After I put 2-3 frames more in the decoder the first frame is rendered to the texture. I'm implementing against Android 4.4.4. private static final int INFINITE_TIMEOUT = -1; private static final int TIMEOUT_OUTPUT_BUFFER_MEDIA_CODEC = 1000; .

In my Android app I have the need to render three views with the following Z-order: At bottom, the output surface of a MediaCodec decoder covering the whole screen. I have the requirement that I have to transform the image produced by MediaCodec (e.g. scale it) In the middle, a GLSurfaceView (or other surface/view running GL shaders I define), covering the whole screen. Obviously some of the pixels in this layer will be transparent, in order to see the MediaCodec output beneath. On top, any other view - say an ImageView . Not sure if I will require transparency for these topmost views, maybe

I am trying to learn to encode a mp4 or any sort of video file using the Camera's onPreviewFrame call back. Currently, I am trying the example codes from this post Encoding H.264 from camera with Android MediaCodec Unfortunately, I am keep getting an IllegalException on the mediaCodec.configure(mediaFormat, null, null, MediaCodec.CONFIGURE_FLAG_ENCODE); From another post IllegalStateException when MediaCodec.configure Android , I notice that are some mandatory values I have to set for the MediaCodec. I tried all the mandatory mediacodec's mandatory values but still no luck of getting past the

I'm trying to implement precise seeking for video using MediaCodec and MediaExtractor . By following Grafika's MoviePlayer , I've managed to implement the forward seeking. However I'm still having problem with backward seeking. The relevant bit of code is here: public void seekBackward(long position){ final int TIMEOUT_USEC = 10000; int inputChunk = 0; long firstInputTimeNsec = -1; boolean outputDone = false; boolean inputDone = false; mExtractor.seekTo(position, MediaExtractor.SEEK_TO_PREVIOUS_SYNC); Log.d("TEST_MEDIA", "sampleTime: " + mExtractor.getSampleTime()/1000 + " -- position: " +

I am currently trying to develop a video player on Android, but am struggling with color formats. Context: I extract and decode a video through the standard combinaison of MediaExtractor/MediaCodec . Because I need the extracted frames to be available as OpenGLES textures (RGB) , I setup my decoder ( MediaCodec ) so that it feeds an external GLES texture ( GL_TEXTURE_EXTERNAL_OES ) through a SurfaceTexture. I know the data output by my HW decoder is in the NV12 ( YUV420SemiPlanar ) format, and I need to convert it to RGB by rendering it (with a fragment shader doing the conversion). MediaCodec