1 /* 2 * Copyright (C) 2011 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 DUMMY_AUDIOSOURCE_H_ 18 #define DUMMY_AUDIOSOURCE_H_ 19 20 #include <media/stagefright/MediaSource.h> 21 22 23 namespace android { 24 25 class MetaData; 26 struct MediaBufferGroup; 27 28 struct DummyAudioSource : public MediaSource { 29 30 public: 31 static sp<DummyAudioSource> Create( 32 int32_t samplingRate, int32_t channelCount, 33 int64_t frameDurationUs, int64_t audioDurationUs); 34 35 virtual status_t start(MetaData *params = NULL); 36 virtual status_t stop(); 37 virtual sp<MetaData> getFormat(); 38 39 virtual status_t read( 40 MediaBuffer **buffer, 41 const MediaSource::ReadOptions *options = NULL); 42 43 void setDuration(int64_t audioDurationUs); 44 45 protected: 46 virtual ~DummyAudioSource(); 47 48 private: 49 int32_t mSamplingRate; 50 int32_t mChannelCount; 51 int64_t mFrameDurationUs; 52 int32_t mNumberOfSamplePerFrame; 53 int64_t mAudioDurationUs; 54 int64_t mTimeStampUs; 55 Mutex mLock; 56 57 MediaBufferGroup *mBufferGroup; 58 59 DummyAudioSource( 60 int32_t samplingRate, int32_t channelCount, 61 int64_t frameDurationUs, int64_t audioDurationUs); 62 63 // Don't call me 64 DummyAudioSource(const DummyAudioSource &); 65 DummyAudioSource &operator=(const DummyAudioSource &); 66 67 }; 68 69 }//namespace android 70 71 72 #endif //DUMMY_AUDIOSOURCE_H_ 73 74
