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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 WIFI_DISPLAY_SOURCE_H_
#define WIFI_DISPLAY_SOURCE_H_
#include "VideoFormats.h"
#include <media/stagefright/foundation/AHandler.h>
#include <media/stagefright/foundation/ANetworkSession.h>
#include <netinet/in.h>
#include <utils/String16.h>
namespace android {
struct AReplyToken;
struct IHDCP;
class IRemoteDisplayClient;
struct ParsedMessage;
// Represents the RTSP server acting as a wifi display source.
// Manages incoming connections, sets up Playback sessions as necessary.
struct WifiDisplaySource : public AHandler {
static const unsigned kWifiDisplayDefaultPort = 7236;
WifiDisplaySource(
const String16 &opPackageName,
const sp<ANetworkSession> &netSession,
const sp<IRemoteDisplayClient> &client,
const char *path = NULL);
status_t start(const char *iface);
status_t stop();
status_t pause();
status_t resume();
protected:
virtual ~WifiDisplaySource();
virtual void onMessageReceived(const sp<AMessage> &msg);
private:
struct PlaybackSession;
struct HDCPObserver;
enum State {
INITIALIZED,
AWAITING_CLIENT_CONNECTION,
AWAITING_CLIENT_SETUP,
AWAITING_CLIENT_PLAY,
ABOUT_TO_PLAY,
PLAYING,
PLAYING_TO_PAUSED,
PAUSED,
PAUSED_TO_PLAYING,
AWAITING_CLIENT_TEARDOWN,
STOPPING,
STOPPED,
};
enum {
kWhatStart,
kWhatRTSPNotify,
kWhatStop,
kWhatPause,
kWhatResume,
kWhatReapDeadClients,
kWhatPlaybackSessionNotify,
kWhatKeepAlive,
kWhatHDCPNotify,
kWhatFinishStop2,
kWhatTeardownTriggerTimedOut,
};
struct ResponseID {
int32_t mSessionID;
int32_t mCSeq;
bool operator<(const ResponseID &other) const {
return mSessionID < other.mSessionID
|| (mSessionID == other.mSessionID
&& mCSeq < other.mCSeq);
}
};
typedef status_t (WifiDisplaySource::*HandleRTSPResponseFunc)(
int32_t sessionID, const sp<ParsedMessage> &msg);
static const int64_t kReaperIntervalUs = 1000000ll;
// We request that the dongle send us a "TEARDOWN" in order to
// perform an orderly shutdown. We're willing to wait up to 2 secs
// for this message to arrive, after that we'll force a disconnect
// instead.
static const int64_t kTeardownTriggerTimeouSecs = 2;
static const int64_t kPlaybackSessionTimeoutSecs = 30;
static const int64_t kPlaybackSessionTimeoutUs =
kPlaybackSessionTimeoutSecs * 1000000ll;
static const AString sUserAgent;
String16 mOpPackageName;
State mState;
VideoFormats mSupportedSourceVideoFormats;
sp<ANetworkSession> mNetSession;
sp<IRemoteDisplayClient> mClient;
AString mMediaPath;
struct in_addr mInterfaceAddr;
int32_t mSessionID;
sp<AReplyToken> mStopReplyID;
AString mWfdClientRtpPorts;
int32_t mChosenRTPPort; // extracted from "wfd_client_rtp_ports"
bool mSinkSupportsVideo;
VideoFormats mSupportedSinkVideoFormats;
VideoFormats::ResolutionType mChosenVideoResolutionType;
size_t mChosenVideoResolutionIndex;
VideoFormats::ProfileType mChosenVideoProfile;
VideoFormats::LevelType mChosenVideoLevel;
bool mSinkSupportsAudio;
bool mUsingPCMAudio;
int32_t mClientSessionID;
struct ClientInfo {
AString mRemoteIP;
AString mLocalIP;
int32_t mLocalPort;
int32_t mPlaybackSessionID;
sp<PlaybackSession> mPlaybackSession;
};
ClientInfo mClientInfo;
bool mReaperPending;
int32_t mNextCSeq;
KeyedVector<ResponseID, HandleRTSPResponseFunc> mResponseHandlers;
// HDCP specific section >>>>
bool mUsingHDCP;
bool mIsHDCP2_0;
int32_t mHDCPPort;
sp<IHDCP> mHDCP;
sp<HDCPObserver> mHDCPObserver;
bool mHDCPInitializationComplete;
bool mSetupTriggerDeferred;
bool mPlaybackSessionEstablished;
status_t makeHDCP();
// <<<< HDCP specific section
status_t sendM1(int32_t sessionID);
status_t sendM3(int32_t sessionID);
status_t sendM4(int32_t sessionID);
enum TriggerType {
TRIGGER_SETUP,
TRIGGER_TEARDOWN,
TRIGGER_PAUSE,
TRIGGER_PLAY,
};
// M5
status_t sendTrigger(int32_t sessionID, TriggerType triggerType);
status_t sendM16(int32_t sessionID);
status_t onReceiveM1Response(
int32_t sessionID, const sp<ParsedMessage> &msg);
status_t onReceiveM3Response(
int32_t sessionID, const sp<ParsedMessage> &msg);
status_t onReceiveM4Response(
int32_t sessionID, const sp<ParsedMessage> &msg);
status_t onReceiveM5Response(
int32_t sessionID, const sp<ParsedMessage> &msg);
status_t onReceiveM16Response(
int32_t sessionID, const sp<ParsedMessage> &msg);
void registerResponseHandler(
int32_t sessionID, int32_t cseq, HandleRTSPResponseFunc func);
status_t onReceiveClientData(const sp<AMessage> &msg);
status_t onOptionsRequest(
int32_t sessionID,
int32_t cseq,
const sp<ParsedMessage> &data);
status_t onSetupRequest(
int32_t sessionID,
int32_t cseq,
const sp<ParsedMessage> &data);
status_t onPlayRequest(
int32_t sessionID,
int32_t cseq,
const sp<ParsedMessage> &data);
status_t onPauseRequest(
int32_t sessionID,
int32_t cseq,
const sp<ParsedMessage> &data);
status_t onTeardownRequest(
int32_t sessionID,
int32_t cseq,
const sp<ParsedMessage> &data);
status_t onGetParameterRequest(
int32_t sessionID,
int32_t cseq,
const sp<ParsedMessage> &data);
status_t onSetParameterRequest(
int32_t sessionID,
int32_t cseq,
const sp<ParsedMessage> &data);
void sendErrorResponse(
int32_t sessionID,
const char *errorDetail,
int32_t cseq);
static void AppendCommonResponse(
AString *response, int32_t cseq, int32_t playbackSessionID = -1ll);
void scheduleReaper();
void scheduleKeepAlive(int32_t sessionID);
int32_t makeUniquePlaybackSessionID() const;
sp<PlaybackSession> findPlaybackSession(
const sp<ParsedMessage> &data, int32_t *playbackSessionID) const;
void finishStop();
void disconnectClientAsync();
void disconnectClient2();
void finishStopAfterDisconnectingClient();
void finishStop2();
void finishPlay();
DISALLOW_EVIL_CONSTRUCTORS(WifiDisplaySource);
};
} // namespace android
#endif // WIFI_DISPLAY_SOURCE_H_
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