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