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/*
* Copyright 2012, 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_SINK_H_
#define RTP_SINK_H_
#include <media/stagefright/foundation/AHandler.h>
#include "LinearRegression.h"
#include <gui/Surface.h>
namespace android {
struct ABuffer;
struct ANetworkSession;
struct TunnelRenderer;
// Creates a pair of sockets for RTP/RTCP traffic, instantiates a renderer
// for incoming transport stream data and occasionally sends statistics over
// the RTCP channel.
struct RTPSink : public AHandler {
RTPSink(const sp<ANetworkSession> &netSession,
const sp<ISurfaceTexture> &surfaceTex);
// If TCP interleaving is used, no UDP sockets are created, instead
// incoming RTP/RTCP packets (arriving on the RTSP control connection)
// are manually injected by WifiDisplaySink.
status_t init(bool useTCPInterleaving);
status_t connect(
const char *host, int32_t remoteRtpPort, int32_t remoteRtcpPort);
int32_t getRTPPort() const;
status_t injectPacket(bool isRTP, const sp<ABuffer> &buffer);
protected:
virtual void onMessageReceived(const sp<AMessage> &msg);
virtual ~RTPSink();
private:
enum {
kWhatRTPNotify,
kWhatRTCPNotify,
kWhatSendRR,
kWhatPacketLost,
kWhatInject,
};
struct Source;
struct StreamSource;
sp<ANetworkSession> mNetSession;
sp<ISurfaceTexture> mSurfaceTex;
KeyedVector<uint32_t, sp<Source> > mSources;
int32_t mRTPPort;
int32_t mRTPSessionID;
int32_t mRTCPSessionID;
int64_t mFirstArrivalTimeUs;
int64_t mNumPacketsReceived;
LinearRegression mRegression;
int64_t mMaxDelayMs;
sp<TunnelRenderer> mRenderer;
status_t parseRTP(const sp<ABuffer> &buffer);
status_t parseRTCP(const sp<ABuffer> &buffer);
status_t parseBYE(const uint8_t *data, size_t size);
status_t parseSR(const uint8_t *data, size_t size);
void addSDES(const sp<ABuffer> &buffer);
void onSendRR();
void onPacketLost(const sp<AMessage> &msg);
void scheduleSendRR();
DISALLOW_EVIL_CONSTRUCTORS(RTPSink);
};
} // namespace android
#endif // RTP_SINK_H_
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