/** Video encoding is done by a MediaCodec. But here we will use the buffer-to-surface method */
@SuppressLint({"InlinedApi", "NewApi"})
protected void encodeWithMediaCodecMethod2() throws RuntimeException, IOException {
Log.d(TAG, "Video encoded using the MediaCodec API with a surface");
// Updates the parameters of the camera if needed
createCamera();
updateCamera();
// Estimates the framerate of the camera
measureFramerate();
EncoderDebugger debugger = EncoderDebugger.debug(mSettings, mQuality.resX, mQuality.resY);
mMediaCodec = MediaCodec.createByCodecName(debugger.getEncoderName());
MediaFormat mediaFormat =
MediaFormat.createVideoFormat("video/avc", mQuality.resX, mQuality.resY);
mediaFormat.setInteger(MediaFormat.KEY_BIT_RATE, mQuality.bitrate);
mediaFormat.setInteger(MediaFormat.KEY_FRAME_RATE, mQuality.framerate);
mediaFormat.setInteger(
MediaFormat.KEY_COLOR_FORMAT, MediaCodecInfo.CodecCapabilities.COLOR_FormatSurface);
mediaFormat.setInteger(MediaFormat.KEY_I_FRAME_INTERVAL, 1);
mMediaCodec.configure(mediaFormat, null, null, MediaCodec.CONFIGURE_FLAG_ENCODE);
Surface surface = mMediaCodec.createInputSurface();
((SurfaceView) mSurfaceView).addMediaCodecSurface(surface);
mMediaCodec.start();
mStreaming = true;
}
/** Video encoding is done by a MediaCodec. */
@SuppressLint("NewApi")
protected void encodeWithMediaCodecMethod1() throws RuntimeException, IOException {
Log.d(TAG, "Video encoded using the MediaCodec API with a buffer");
// Updates the parameters of the camera if needed
createCamera();
updateCamera();
// Estimates the framerate of the camera
measureFramerate();
// Starts the preview if needed
if (!mPreviewStarted) {
try {
mCamera.startPreview();
mPreviewStarted = true;
} catch (RuntimeException e) {
destroyCamera();
throw e;
}
}
EncoderDebugger debugger = EncoderDebugger.debug(mSettings, mQuality.resX, mQuality.resY);
final NV21Convertor convertor = debugger.getNV21Convertor();
mMediaCodec = MediaCodec.createByCodecName(debugger.getEncoderName());
MediaFormat mediaFormat =
MediaFormat.createVideoFormat("video/avc", mQuality.resX, mQuality.resY);
mediaFormat.setInteger(MediaFormat.KEY_BIT_RATE, mQuality.bitrate);
mediaFormat.setInteger(MediaFormat.KEY_FRAME_RATE, mQuality.framerate);
mediaFormat.setInteger(MediaFormat.KEY_COLOR_FORMAT, debugger.getEncoderColorFormat());
mediaFormat.setInteger(MediaFormat.KEY_I_FRAME_INTERVAL, 1);
mMediaCodec.configure(mediaFormat, null, null, MediaCodec.CONFIGURE_FLAG_ENCODE);
mMediaCodec.start();
Camera.PreviewCallback callback =
new Camera.PreviewCallback() {
long now = System.nanoTime() / 1000, oldnow = now, i = 0;
ByteBuffer[] inputBuffers = mMediaCodec.getInputBuffers();
@Override
public void onPreviewFrame(byte[] data, Camera camera) {
oldnow = now;
now = System.nanoTime() / 1000;
if (i++ > 3) {
i = 0;
// Log.d(TAG,"Measured: "+1000000L/(now-oldnow)+" fps.");
}
try {
int bufferIndex = mMediaCodec.dequeueInputBuffer(500000);
if (bufferIndex >= 0) {
inputBuffers[bufferIndex].clear();
if (data == null)
Log.e(TAG, "Symptom of the \"Callback buffer was to small\" problem...");
else convertor.convert(data, inputBuffers[bufferIndex]);
mMediaCodec.queueInputBuffer(
bufferIndex, 0, inputBuffers[bufferIndex].position(), now, 0);
} else {
Log.e(TAG, "No buffer available !");
}
} finally {
mCamera.addCallbackBuffer(data);
}
}
};
for (int i = 0; i < 10; i++) mCamera.addCallbackBuffer(new byte[convertor.getBufferSize()]);
mCamera.setPreviewCallbackWithBuffer(callback);
mStreaming = true;
}
