private void update()

in BasicMediaDecoder/Application/src/main/java/com/example/android/common/media/MediaCodecWrapper.java [319:370]
36 lines of code
7 McCabe index (conditional complexity)

    private void update() {
        // BEGIN_INCLUDE(update_codec_state)
        int index;

        // Get valid input buffers from the codec to fill later in the same order they were
        // made available by the codec.
        while ((index = mDecoder.dequeueInputBuffer(0)) != MediaCodec.INFO_TRY_AGAIN_LATER) {
            mAvailableInputBuffers.add(index);
        }


        // Likewise with output buffers. If the output buffers have changed, start using the
        // new set of output buffers. If the output format has changed, notify listeners.
        MediaCodec.BufferInfo info = new MediaCodec.BufferInfo();
        while ((index = mDecoder.dequeueOutputBuffer(info, 0)) !=  MediaCodec.INFO_TRY_AGAIN_LATER) {
            switch (index) {
                case MediaCodec.INFO_OUTPUT_BUFFERS_CHANGED:
                    mOutputBuffers = mDecoder.getOutputBuffers();
                    mOutputBufferInfo = new MediaCodec.BufferInfo[mOutputBuffers.length];
                    mAvailableOutputBuffers.clear();
                    break;
                case MediaCodec.INFO_OUTPUT_FORMAT_CHANGED:
                    if (mOutputFormatChangedListener != null) {
                        mHandler.post(new Runnable() {
                            @Override
                            public void run() {
                                mOutputFormatChangedListener
                                        .outputFormatChanged(MediaCodecWrapper.this,
                                                mDecoder.getOutputFormat());

                            }
                        });
                    }
                    break;
                default:
                    // Making sure the index is valid before adding to output buffers. We've already
                    // handled INFO_TRY_AGAIN_LATER, INFO_OUTPUT_FORMAT_CHANGED &
                    // INFO_OUTPUT_BUFFERS_CHANGED i.e all the other possible return codes but
                    // asserting index value anyways for future-proofing the code.
                    if (index >= 0) {
                        mOutputBufferInfo[index] = info;
                        mAvailableOutputBuffers.add(index);
                    } else {
                        throw new IllegalStateException("Unknown status from dequeueOutputBuffer");
                    }
                    break;
            }

        }
        // END_INCLUDE(update_codec_state)

    }