MediaCodec: check buffer size to prevent possible integer overflow for video encoder.

        if (!format->findInt32("rotation-degrees", &mRotationDegrees)) {

            mRotationDegrees = 0;

        }

        // Prevent possible integer overflow in downstream code.

        if (mInitIsEncoder

                && (uint64_t)mVideoWidth * mVideoHeight > (uint64_t)INT32_MAX / 4) {

            ALOGE("buffer size is too big, width=%d, height=%d", mVideoWidth, mVideoHeight);

            return BAD_VALUE;

        }

    }

    msg->setMessage("format", format);