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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_SINK_H_
#define WIFI_DISPLAY_SINK_H_
#include "ANetworkSession.h"
#include "VideoFormats.h"
#include <gui/Surface.h>
#include <media/stagefright/foundation/AHandler.h>
namespace android {
struct AMessage;
struct DirectRenderer;
struct MediaReceiver;
struct ParsedMessage;
struct TunnelRenderer;
#define USE_TUNNEL_RENDERER 0
// Represents the RTSP client acting as a wifi display sink.
// Connects to a wifi display source and renders the incoming
// transport stream using a MediaPlayer instance.
struct WifiDisplaySink : public AHandler {
enum {
kWhatDisconnected,
};
// If no notification message is specified (notify == NULL)
// the sink will stop its looper() once the session ends,
// otherwise it will post an appropriate notification but leave
// the looper() running.
WifiDisplaySink(
const sp<ANetworkSession> &netSession,
const sp<IGraphicBufferProducer> &bufferProducer = NULL,
const sp<AMessage> ¬ify = NULL);
void start(const char *sourceHost, int32_t sourcePort);
void start(const char *uri);
protected:
virtual ~WifiDisplaySink();
virtual void onMessageReceived(const sp<AMessage> &msg);
private:
enum State {
UNDEFINED,
CONNECTING,
CONNECTED,
PAUSED,
PLAYING,
};
enum {
kWhatStart,
kWhatRTSPNotify,
kWhatStop,
kWhatMediaReceiverNotify,
};
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 (WifiDisplaySink::*HandleRTSPResponseFunc)(
int32_t sessionID, const sp<ParsedMessage> &msg);
State mState;
VideoFormats mSinkSupportedVideoFormats;
sp<ANetworkSession> mNetSession;
sp<IGraphicBufferProducer> mSurfaceTex;
sp<AMessage> mNotify;
bool mUsingTCPTransport;
bool mUsingTCPInterleaving;
AString mRTSPHost;
int32_t mSessionID;
int32_t mNextCSeq;
KeyedVector<ResponseID, HandleRTSPResponseFunc> mResponseHandlers;
sp<ALooper> mMediaReceiverLooper;
sp<MediaReceiver> mMediaReceiver;
#if USE_TUNNEL_RENDERER
sp<TunnelRenderer> mRenderer;
#else
sp<DirectRenderer> mRenderer;
#endif
AString mPlaybackSessionID;
int32_t mPlaybackSessionTimeoutSecs;
bool mIDRFrameRequestPending;
status_t sendM2(int32_t sessionID);
status_t sendSetup(int32_t sessionID, const char *uri);
status_t sendPlay(int32_t sessionID, const char *uri);
status_t sendIDRFrameRequest(int32_t sessionID);
status_t onReceiveM2Response(
int32_t sessionID, const sp<ParsedMessage> &msg);
status_t onReceiveSetupResponse(
int32_t sessionID, const sp<ParsedMessage> &msg);
status_t configureTransport(const sp<ParsedMessage> &msg);
status_t onReceivePlayResponse(
int32_t sessionID, const sp<ParsedMessage> &msg);
status_t onReceiveIDRFrameRequestResponse(
int32_t sessionID, const sp<ParsedMessage> &msg);
void registerResponseHandler(
int32_t sessionID, int32_t cseq, HandleRTSPResponseFunc func);
void onReceiveClientData(const sp<AMessage> &msg);
void onOptionsRequest(
int32_t sessionID,
int32_t cseq,
const sp<ParsedMessage> &data);
void onGetParameterRequest(
int32_t sessionID,
int32_t cseq,
const sp<ParsedMessage> &data);
void onSetParameterRequest(
int32_t sessionID,
int32_t cseq,
const sp<ParsedMessage> &data);
void onMediaReceiverNotify(const sp<AMessage> &msg);
void sendErrorResponse(
int32_t sessionID,
const char *errorDetail,
int32_t cseq);
static void AppendCommonResponse(AString *response, int32_t cseq);
bool ParseURL(
const char *url, AString *host, int32_t *port, AString *path,
AString *user, AString *pass);
DISALLOW_EVIL_CONSTRUCTORS(WifiDisplaySink);
};
} // namespace android
#endif // WIFI_DISPLAY_SINK_H_
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