Home | History | Annotate | Download | only in stagefright 
      1 /*
      2  * Copyright (C) 2012 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 #include <media/stagefright/foundation/AHandler.h>
     18 #include <media/stagefright/foundation/AString.h>
     19 #include <utils/KeyedVector.h>
     20 
     21 namespace android {
     22 
     23 struct ABuffer;
     24 struct ALooper;
     25 struct AudioTrack;
     26 struct IGraphicBufferProducer;
     27 struct MediaCodec;
     28 struct NativeWindowWrapper;
     29 struct NuMediaExtractor;
     30 
     31 struct SimplePlayer : public AHandler {
     32     SimplePlayer();
     33 
     34     status_t setDataSource(const char *path);
     35     status_t setSurface(const sp<IGraphicBufferProducer> &bufferProducer);
     36     status_t prepare();
     37     status_t start();
     38     status_t stop();
     39     status_t reset();
     40 
     41 protected:
     42     virtual ~SimplePlayer();
     43 
     44     virtual void onMessageReceived(const sp<AMessage> &msg);
     45 
     46 private:
     47     enum State {
     48         UNINITIALIZED,
     49         UNPREPARED,
     50         STOPPED,
     51         STARTED
     52     };
     53 
     54     enum {
     55         kWhatSetDataSource,
     56         kWhatSetSurface,
     57         kWhatPrepare,
     58         kWhatStart,
     59         kWhatStop,
     60         kWhatReset,
     61         kWhatDoMoreStuff,
     62     };
     63 
     64     struct BufferInfo {
     65         size_t mIndex;
     66         size_t mOffset;
     67         size_t mSize;
     68         int64_t mPresentationTimeUs;
     69         uint32_t mFlags;
     70     };
     71 
     72     struct CodecState
     73     {
     74         sp<MediaCodec> mCodec;
     75         Vector<sp<ABuffer> > mCSD;
     76         Vector<sp<ABuffer> > mBuffers[2];
     77 
     78         List<size_t> mAvailInputBufferIndices;
     79         List<BufferInfo> mAvailOutputBufferInfos;
     80 
     81         sp<AudioTrack> mAudioTrack;
     82         uint32_t mNumFramesWritten;
     83     };
     84 
     85     State mState;
     86     AString mPath;
     87     sp<NativeWindowWrapper> mNativeWindow;
     88 
     89     sp<NuMediaExtractor> mExtractor;
     90     sp<ALooper> mCodecLooper;
     91     KeyedVector<size_t, CodecState> mStateByTrackIndex;
     92     int32_t mDoMoreStuffGeneration;
     93 
     94     int64_t mStartTimeRealUs;
     95 
     96     status_t onPrepare();
     97     status_t onStart();
     98     status_t onStop();
     99     status_t onReset();
    100     status_t onDoMoreStuff();
    101     status_t onOutputFormatChanged(size_t trackIndex, CodecState *state);
    102 
    103     void renderAudio(
    104             CodecState *state, BufferInfo *info, const sp<ABuffer> &buffer);
    105 
    106     DISALLOW_EVIL_CONSTRUCTORS(SimplePlayer);
    107 };
    108 
    109 }  // namespace android
    110