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/*
* Copyright (C) 2010 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 A_RTP_CONNECTION_H_
#define A_RTP_CONNECTION_H_
#include <media/stagefright/foundation/AHandler.h>
#include <utils/List.h>
namespace android {
struct ABuffer;
struct ARTPSource;
struct ASessionDescription;
struct ARTPConnection : public AHandler {
enum Flags {
kRegularlyRequestFIR = 2,
};
ARTPConnection(uint32_t flags = 0);
void addStream(
int rtpSocket, int rtcpSocket,
const sp<ASessionDescription> &sessionDesc, size_t index,
const sp<AMessage> ¬ify,
bool injected,
bool isIPV6 = false);
void removeStream(int rtpSocket, int rtcpSocket);
void injectPacket(int index, const sp<ABuffer> &buffer);
// Creates a pair of UDP datagram sockets bound to adjacent ports
// (the rtpSocket is bound to an even port, the rtcpSocket to the
// next higher port).
static void MakePortPair(
int *rtpSocket, int *rtcpSocket, unsigned *rtpPort);
protected:
virtual ~ARTPConnection();
virtual void onMessageReceived(const sp<AMessage> &msg);
virtual size_t sockAddrSize();
enum {
kWhatAddStream,
kWhatRemoveStream,
kWhatPollStreams,
kWhatInjectPacket,
};
static const int64_t kSelectTimeoutUs;
uint32_t mFlags;
struct StreamInfo;
List<StreamInfo> mStreams;
bool mPollEventPending;
int64_t mLastReceiverReportTimeUs;
virtual void onAddStream(const sp<AMessage> &msg);
void onRemoveStream(const sp<AMessage> &msg);
void onPollStreams();
void onInjectPacket(const sp<AMessage> &msg);
void onSendReceiverReports();
status_t receive(StreamInfo *info, bool receiveRTP);
status_t parseRTP(StreamInfo *info, const sp<ABuffer> &buffer);
status_t parseRTCP(StreamInfo *info, const sp<ABuffer> &buffer);
status_t parseSR(StreamInfo *info, const uint8_t *data, size_t size);
status_t parseBYE(StreamInfo *info, const uint8_t *data, size_t size);
sp<ARTPSource> findSource(StreamInfo *info, uint32_t id);
void postPollEvent();
DISALLOW_EVIL_CONSTRUCTORS(ARTPConnection);
};
} // namespace android
#endif // A_RTP_CONNECTION_H_
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