fix AmrInputStream.read() hang

                }

            }

            // now read encoded data from the encoder (blocking, since we just filled up the

            // encoder's input with data it should be able to output at least one buffer)

            while (true) {

                int index = mCodec.dequeueOutputBuffer(mInfo, -1);

            // now read encoded data from the encoder

            int index = mCodec.dequeueOutputBuffer(mInfo, 0);

            if (index >= 0) {

                mBufIn = mInfo.size;

                ByteBuffer out = mCodec.getOutputBuffer(index);

                if ((mInfo.flags & MediaCodec.BUFFER_FLAG_END_OF_STREAM) != 0) {

                    mSawOutputEOS = true;

                }

                    break;

                }

            }

        }