private int bufferCopiedCallback(long nCopiedSize, long nAvailableSize) {
if (!super.mValid) {
Log.e(TAG, "Invalid state");
return -1;
}
if (mPreview == null || !mPreview.isReady()) {
// Not on the top
return 0;
}
if (mVideoFrame == null || mVideoFrame.capacity() != nAvailableSize) {
synchronized (mPreview) {
long newWidth = mConsumer.getDisplayWidth();
long newHeight = mConsumer.getDisplayHeight();
mVideoFrame = ByteBuffer.allocateDirect((int) nAvailableSize);
mConsumer.setConsumeBuffer(mVideoFrame, mVideoFrame.capacity());
mWidth = (int) newWidth;
mHeight = (int) newHeight;
mPreview.setBuffer(mVideoFrame, mWidth, mHeight);
}
return 0;
}
mPreview.requestRender();
return 0;
}
private int consumeCallback(ProxyVideoFrame _frame) {
if (!super.mValid) {
Log.e(TAG, "Invalid state");
return -1;
}
if (mPreview == null || !mPreview.isReady()) {
// Not on the top
return 0;
}
// Get video frame content from native code
_frame.getContent(mVideoFrame, mVideoFrame.capacity());
mPreview.requestRender();
return 0;
}
@Override
public final View startPreview(Context context) {
mContext = context == null ? mContext : context;
if (mContext != null) {
if (mPreview == null || mPreview.isDestroyed()) {
mPreview = new NgnProxyVideoConsumerGLPreview(mContext, mVideoFrame, mWidth, mHeight, mFps);
}
}
return mPreview;
}