Merge "Make sure the .wav extractor does not read data outside the bounds of...

        return err;

    }

    size_t maxBytesToRead =

        mBitsPerSample == 8 ? kMaxFrameSize / 2 : kMaxFrameSize;

    size_t maxBytesAvailable =

        (mCurrentPos - mOffset >= (off_t)mSize)

            ? 0 : mSize - (mCurrentPos - mOffset);

    if (maxBytesToRead > maxBytesAvailable) {

        maxBytesToRead = maxBytesAvailable;

    }

    ssize_t n = mDataSource->readAt(

            mCurrentPos, buffer->data(),

            mBitsPerSample == 8 ? kMaxFrameSize / 2 : kMaxFrameSize);

            maxBytesToRead);

    if (n <= 0) {

        buffer->release();