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 class AudioTrack; 26 class IGraphicBufferProducer; 27 struct MediaCodec; 28 class MediaCodecBuffer; 29 struct NuMediaExtractor; 30 class Surface; 31 32 struct SimplePlayer : public AHandler { 33 SimplePlayer(); 34 35 status_t setDataSource(const char *path); 36 status_t setSurface(const sp<IGraphicBufferProducer> &bufferProducer); 37 status_t prepare(); 38 status_t start(); 39 status_t stop(); 40 status_t reset(); 41 42 protected: 43 virtual ~SimplePlayer(); 44 45 virtual void onMessageReceived(const sp<AMessage> &msg); 46 47 private: 48 enum State { 49 UNINITIALIZED, 50 UNPREPARED, 51 STOPPED, 52 STARTED 53 }; 54 55 enum { 56 kWhatSetDataSource, 57 kWhatSetSurface, 58 kWhatPrepare, 59 kWhatStart, 60 kWhatStop, 61 kWhatReset, 62 kWhatDoMoreStuff, 63 }; 64 65 struct BufferInfo { 66 size_t mIndex; 67 size_t mOffset; 68 size_t mSize; 69 int64_t mPresentationTimeUs; 70 uint32_t mFlags; 71 }; 72 73 struct CodecState 74 { 75 sp<MediaCodec> mCodec; 76 Vector<sp<ABuffer> > mCSD; 77 Vector<sp<MediaCodecBuffer> > mBuffers[2]; 78 79 List<size_t> mAvailInputBufferIndices; 80 List<BufferInfo> mAvailOutputBufferInfos; 81 82 sp<AudioTrack> mAudioTrack; 83 uint32_t mNumFramesWritten; 84 }; 85 86 State mState; 87 AString mPath; 88 sp<Surface> mSurface; 89 90 sp<NuMediaExtractor> mExtractor; 91 sp<ALooper> mCodecLooper; 92 KeyedVector<size_t, CodecState> mStateByTrackIndex; 93 int32_t mDoMoreStuffGeneration; 94 95 int64_t mStartTimeRealUs; 96 97 status_t onPrepare(); 98 status_t onStart(); 99 status_t onStop(); 100 status_t onReset(); 101 status_t onDoMoreStuff(); 102 status_t onOutputFormatChanged(size_t trackIndex, CodecState *state); 103 104 void renderAudio( 105 CodecState *state, BufferInfo *info, const sp<MediaCodecBuffer> &buffer); 106 107 DISALLOW_EVIL_CONSTRUCTORS(SimplePlayer); 108 }; 109 110 } // namespace android 111