| Andreas Huber | da050cf2 | 2009-09-02 14:01:43 -0700 | [diff] [blame] | 1 | #ifndef SINE_SOURCE_H_ |
| 2 | |
| 3 | #define SINE_SOURCE_H_ |
| 4 | |
| 5 | #include <media/stagefright/MediaSource.h> |
| 6 | |
| 7 | namespace android { |
| 8 | |
| 9 | struct MediaBufferGroup; |
| 10 | |
| 11 | struct SineSource : public MediaSource { |
| 12 | SineSource(int32_t sampleRate, int32_t numChannels); |
| 13 | |
| 14 | virtual status_t start(MetaData *params); |
| 15 | virtual status_t stop(); |
| 16 | |
| 17 | virtual sp<MetaData> getFormat(); |
| 18 | |
| 19 | virtual status_t read( |
| 20 | MediaBuffer **out, const ReadOptions *options = NULL); |
| 21 | |
| 22 | protected: |
| 23 | virtual ~SineSource(); |
| 24 | |
| 25 | private: |
| 26 | enum { kBufferSize = 8192 }; |
| 27 | static const double kFrequency = 500.0; |
| 28 | |
| 29 | bool mStarted; |
| 30 | int32_t mSampleRate; |
| 31 | int32_t mNumChannels; |
| 32 | size_t mPhase; |
| 33 | |
| 34 | MediaBufferGroup *mGroup; |
| 35 | }; |
| 36 | |
| 37 | } // namespace android |
| 38 | |
| 39 | #endif // SINE_SOURCE_H_ |