| /* |
| * Copyright 2019 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef _PLAYER_SIMIPLEMULTIPLAYER_H_ |
| #define _PLAYER_SIMIPLEMULTIPLAYER_H_ |
| |
| #include <vector> |
| |
| #include <oboe/Oboe.h> |
| |
| #include "OneShotSampleSource.h" |
| #include "SampleBuffer.h" |
| |
| namespace iolib { |
| |
| typedef unsigned char byte; // an 8-bit unsigned value |
| |
| /** |
| * A simple streaming player for multiple SampleBuffers. |
| */ |
| class SimpleMultiPlayer : public oboe::AudioStreamCallback { |
| public: |
| SimpleMultiPlayer(); |
| |
| // Inherited from oboe::AudioStreamCallback |
| oboe::DataCallbackResult onAudioReady(oboe::AudioStream *oboeStream, void *audioData, |
| int32_t numFrames) override; |
| virtual void onErrorAfterClose(oboe::AudioStream *oboeStream, oboe::Result error) override; |
| virtual void onErrorBeforeClose(oboe::AudioStream * oboeStream, oboe::Result error) override; |
| |
| void setupAudioStream(int32_t channelCount, int32_t sampleRate); |
| void teardownAudioStream(); |
| |
| bool openStream(); |
| |
| // Wave Sample Loading... |
| /** |
| * Adds the SampleSource/Samplebuffer pair to the list of source channels. |
| * Transfers ownership of those objects so that they can be deleted/unloaded. |
| * The indexes associated with each source channel is the order in which they |
| * are added. |
| */ |
| void addSampleSource(OneShotSampleSource* source, SampleBuffer* buffer); |
| /** |
| * Deallocates and deletes all added source/buffer (see addSampleSource()). |
| */ |
| void unloadSampleData(); |
| |
| void triggerDown(int32_t index); |
| void triggerUp(int32_t index); |
| |
| void resetAll(); |
| |
| bool getOutputReset() { return mOutputReset; } |
| void clearOutputReset() { mOutputReset = false; } |
| |
| private: |
| // Oboe Audio Stream |
| oboe::ManagedStream mAudioStream; |
| |
| // Audio attributes |
| int32_t mChannelCount; |
| int32_t mSampleRate; |
| |
| // Sample Data |
| int32_t mNumSampleBuffers; |
| std::vector<SampleBuffer*> mSampleBuffers; |
| std::vector<OneShotSampleSource*> mSampleSources; |
| |
| bool mOutputReset; |
| }; |
| |
| } |
| #endif //_PLAYER_SIMIPLEMULTIPLAYER_H_ |