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      1 /*
      2  * Copyright (C) 2010 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #ifndef RTSP_SOURCE_H_
     18 
     19 #define RTSP_SOURCE_H_
     20 
     21 #include "NuPlayerSource.h"
     22 
     23 #include "ATSParser.h"
     24 
     25 #include <media/stagefright/foundation/AHandlerReflector.h>
     26 
     27 namespace android {
     28 
     29 struct ALooper;
     30 struct AnotherPacketSource;
     31 struct MyHandler;
     32 struct SDPLoader;
     33 
     34 struct NuPlayer::RTSPSource : public NuPlayer::Source {
     35     RTSPSource(
     36             const sp<AMessage> &notify,
     37             const char *url,
     38             const KeyedVector<String8, String8> *headers,
     39             bool uidValid = false,
     40             uid_t uid = 0,
     41             bool isSDP = false);
     42 
     43     virtual void prepareAsync();
     44     virtual void start();
     45     virtual void stop();
     46     virtual void pause();
     47     virtual void resume();
     48 
     49     virtual status_t feedMoreTSData();
     50 
     51     virtual status_t dequeueAccessUnit(bool audio, sp<ABuffer> *accessUnit);
     52 
     53     virtual status_t getDuration(int64_t *durationUs);
     54     virtual status_t seekTo(int64_t seekTimeUs);
     55 
     56     void onMessageReceived(const sp<AMessage> &msg);
     57 
     58 protected:
     59     virtual ~RTSPSource();
     60 
     61     virtual sp<MetaData> getFormatMeta(bool audio);
     62 
     63 private:
     64     enum {
     65         kWhatNotify          = 'noti',
     66         kWhatDisconnect      = 'disc',
     67         kWhatPerformSeek     = 'seek',
     68     };
     69 
     70     enum State {
     71         DISCONNECTED,
     72         CONNECTING,
     73         CONNECTED,
     74         SEEKING,
     75     };
     76 
     77     enum Flags {
     78         // Don't log any URLs.
     79         kFlagIncognito = 1,
     80     };
     81 
     82     struct TrackInfo {
     83         sp<AnotherPacketSource> mSource;
     84 
     85         int32_t mTimeScale;
     86         uint32_t mRTPTime;
     87         int64_t mNormalPlaytimeUs;
     88         bool mNPTMappingValid;
     89     };
     90 
     91     AString mURL;
     92     KeyedVector<String8, String8> mExtraHeaders;
     93     bool mUIDValid;
     94     uid_t mUID;
     95     uint32_t mFlags;
     96     bool mIsSDP;
     97     State mState;
     98     status_t mFinalResult;
     99     uint32_t mDisconnectReplyID;
    100     bool mBuffering;
    101 
    102     sp<ALooper> mLooper;
    103     sp<AHandlerReflector<RTSPSource> > mReflector;
    104     sp<MyHandler> mHandler;
    105     sp<SDPLoader> mSDPLoader;
    106 
    107     Vector<TrackInfo> mTracks;
    108     sp<AnotherPacketSource> mAudioTrack;
    109     sp<AnotherPacketSource> mVideoTrack;
    110 
    111     sp<ATSParser> mTSParser;
    112 
    113     int32_t mSeekGeneration;
    114 
    115     int64_t mEOSTimeoutAudio;
    116     int64_t mEOSTimeoutVideo;
    117 
    118     sp<AnotherPacketSource> getSource(bool audio);
    119 
    120     void onConnected();
    121     void onSDPLoaded(const sp<AMessage> &msg);
    122     void onDisconnected(const sp<AMessage> &msg);
    123     void finishDisconnectIfPossible();
    124 
    125     void performSeek(int64_t seekTimeUs);
    126 
    127     bool haveSufficientDataOnAllTracks();
    128 
    129     void setEOSTimeout(bool audio, int64_t timeout);
    130 
    131     DISALLOW_EVIL_CONSTRUCTORS(RTSPSource);
    132 };
    133 
    134 }  // namespace android
    135 
    136 #endif  // RTSP_SOURCE_H_
    137