| /* |
| * Copyright 2013, The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef RTP_RECEIVER_H_ |
| |
| #define RTP_RECEIVER_H_ |
| |
| #include "RTPBase.h" |
| |
| #include <media/stagefright/foundation/AHandler.h> |
| |
| namespace android { |
| |
| struct ABuffer; |
| struct ANetworkSession; |
| |
| // An object of this class facilitates receiving of media data on an RTP |
| // channel. The channel is established over a UDP or TCP connection depending |
| // on which "TransportMode" was chosen. In addition different RTP packetization |
| // schemes are supported such as "Transport Stream Packets over RTP", |
| // or "AVC/H.264 encapsulation as specified in RFC 3984 (non-interleaved mode)" |
| struct RTPReceiver : public RTPBase, public AHandler { |
| enum { |
| kWhatInitDone, |
| kWhatError, |
| kWhatAccessUnit, |
| kWhatPacketLost, |
| }; |
| RTPReceiver( |
| const sp<ANetworkSession> &netSession, |
| const sp<AMessage> ¬ify); |
| |
| status_t registerPacketType( |
| uint8_t packetType, PacketizationMode mode); |
| |
| status_t initAsync(TransportMode mode, int32_t *outLocalRTPPort); |
| |
| status_t connect( |
| const char *remoteHost, |
| int32_t remoteRTPPort, |
| int32_t remoteRTCPPort); |
| |
| protected: |
| virtual ~RTPReceiver(); |
| virtual void onMessageReceived(const sp<AMessage> &msg); |
| |
| private: |
| enum { |
| kWhatRTPNotify, |
| kWhatRTCPNotify, |
| kWhatSendRR, |
| }; |
| |
| enum { |
| kSourceID = 0xdeadbeef, |
| kPacketLostAfterUs = 100000, |
| kRequestRetransmissionAfterUs = -1, |
| }; |
| |
| struct Assembler; |
| struct H264Assembler; |
| struct Source; |
| struct TSAssembler; |
| |
| sp<ANetworkSession> mNetSession; |
| sp<AMessage> mNotify; |
| TransportMode mMode; |
| int32_t mRTPSessionID; |
| int32_t mRTCPSessionID; |
| |
| int32_t mRTPClientSessionID; // in TRANSPORT_TCP mode. |
| |
| KeyedVector<uint8_t, PacketizationMode> mPacketTypes; |
| KeyedVector<uint32_t, sp<Source> > mSources; |
| |
| void onNetNotify(bool isRTP, const sp<AMessage> &msg); |
| status_t onRTPData(const sp<ABuffer> &data); |
| status_t onRTCPData(const sp<ABuffer> &data); |
| void onSendRR(); |
| |
| void scheduleSendRR(); |
| void addSDES(const sp<ABuffer> &buffer); |
| |
| void notifyInitDone(status_t err); |
| void notifyError(status_t err); |
| void notifyPacketLost(); |
| |
| sp<Assembler> makeAssembler(uint8_t packetType); |
| |
| void requestRetransmission(uint32_t senderSSRC, int32_t extSeqNo); |
| |
| DISALLOW_EVIL_CONSTRUCTORS(RTPReceiver); |
| }; |
| |
| } // namespace android |
| |
| #endif // RTP_RECEIVER_H_ |