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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 <media/stagefright/foundation/AHandlerReflector.h>
     24 
     25 namespace android {
     26 
     27 struct ALooper;
     28 struct AnotherPacketSource;
     29 struct MyHandler;
     30 
     31 struct NuPlayer::RTSPSource : public NuPlayer::Source {
     32     RTSPSource(
     33             const char *url,
     34             const KeyedVector<String8, String8> *headers,
     35             bool uidValid = false,
     36             uid_t uid = 0);
     37 
     38     virtual void start();
     39     virtual void stop();
     40 
     41     virtual status_t feedMoreTSData();
     42 
     43     virtual sp<MetaData> getFormat(bool audio);
     44     virtual status_t dequeueAccessUnit(bool audio, sp<ABuffer> *accessUnit);
     45 
     46     virtual status_t getDuration(int64_t *durationUs);
     47     virtual status_t seekTo(int64_t seekTimeUs);
     48     virtual bool isSeekable();
     49 
     50     void onMessageReceived(const sp<AMessage> &msg);
     51 
     52 protected:
     53     virtual ~RTSPSource();
     54 
     55 private:
     56     enum {
     57         kWhatNotify          = 'noti',
     58         kWhatDisconnect      = 'disc',
     59         kWhatPerformSeek     = 'seek',
     60     };
     61 
     62     enum State {
     63         DISCONNECTED,
     64         CONNECTING,
     65         CONNECTED,
     66         SEEKING,
     67     };
     68 
     69     enum Flags {
     70         // Don't log any URLs.
     71         kFlagIncognito = 1,
     72     };
     73 
     74     struct TrackInfo {
     75         sp<AnotherPacketSource> mSource;
     76 
     77         int32_t mTimeScale;
     78         uint32_t mRTPTime;
     79         int64_t mNormalPlaytimeUs;
     80         bool mNPTMappingValid;
     81     };
     82 
     83     AString mURL;
     84     KeyedVector<String8, String8> mExtraHeaders;
     85     bool mUIDValid;
     86     uid_t mUID;
     87     uint32_t mFlags;
     88     State mState;
     89     status_t mFinalResult;
     90     uint32_t mDisconnectReplyID;
     91     bool mStartingUp;
     92 
     93     sp<ALooper> mLooper;
     94     sp<AHandlerReflector<RTSPSource> > mReflector;
     95     sp<MyHandler> mHandler;
     96 
     97     Vector<TrackInfo> mTracks;
     98     sp<AnotherPacketSource> mAudioTrack;
     99     sp<AnotherPacketSource> mVideoTrack;
    100 
    101     int32_t mSeekGeneration;
    102 
    103     sp<AnotherPacketSource> getSource(bool audio);
    104 
    105     void onConnected();
    106     void onDisconnected(const sp<AMessage> &msg);
    107     void finishDisconnectIfPossible();
    108 
    109     void performSeek(int64_t seekTimeUs);
    110 
    111     bool haveSufficientDataOnAllTracks();
    112 
    113     DISALLOW_EVIL_CONSTRUCTORS(RTSPSource);
    114 };
    115 
    116 }  // namespace android
    117 
    118 #endif  // RTSP_SOURCE_H_
    119