path: root/tvapi/libtv/audio/audio_android.h (plain)
blob: 298ab8fbfa30e56d0a0bcbb3c3a7ac7cb11c1d30

1	#ifndef __TV_AUDIO_ANDROID_H__
2	#define __TV_AUDIO_ANDROID_H__
3
4	#define CC_FLAG_CREATE_RECORD (0x0001)
5	#define CC_FLAG_CREATE_TRACK (0x0002)
6	#include "audio_alsa.h"
7	#include <media/AudioRecord.h>
8	#include <media/AudioTrack.h>
9
10	using namespace android;
11
12
13	class CAndroidAudio {
14	public:
15	CAndroidAudio(CAudioAlsa *);
16	~CAndroidAudio();
17	int amAndroidInit(int tm_sleep, int init_flag, int recordSr, int trackSr,
18	bool enable_noise_gat);
19	int amAndroidUninit(int tm_sleep);
20	int amAndroidSetRecorderSr(int sr);
21	int amAndroidSetTrackerSr(int sr);
22	int amAndroidSetDumpDataFlag(int tmp_flag);
23	int amAndroidGetDumpDataFlag();
24	void amAndroidSetNoiseGateThreshold(int thresh);
25	void reset_system_framesize(int input_sample_rate, int output_sample_rate);
26
27	private:
28	void DoDumpData(void *data_buf, int size);
29	void noise_filter_init();
30	int noise_filter_left(int);
31	int noise_filter_right(int);
32	void DeleteAudioRecorder();
33	void FreeAudioRecorder();
34	void DeleteAudioTracker();
35	void FreeAudioTracker();
36	int InitTempBuffer();
37	void FreeTempBuffer();
38	void ResetRecordWritePointer();
39	void ResetPlaybackReadPointer();
40	void ResetPointer();
41	short int clip(int);
42	int upsample(short int *, short int *, unsigned int, unsigned int, unsigned int);
43	int downsample(short int *, short int *, unsigned int, unsigned int, unsigned int);
44	int GetWriteSpace(volatile short int *, volatile short int *);
45	int GetReadSpace(volatile short int *, volatile short int *);
46	void recorderCallback(int, void *, void *);
47	void trackerCallback(int, void *, void *);
48	int initAudioTracker(int);
49	int initAudioRecorder(int);
50
51	CAudioAlsa *mpAudioAlsa;
52	int mDumpDataFlag;
53	int mDumpDataFd;
54	AudioRecord *mlpRecorder;
55	AudioTrack *mlpTracker;
56
57	#if ANDROID_PLATFORM_SDK_VERSION >= 19
58	sp<AudioTrack> mmpAudioTracker;
59	sp<AudioRecord> mmpAudioRecorder;
60	#endif
61
62	short *temp_buffer;
63	short *end_temp_buffer;
64	short volatile *record_write_pointer;
65	short volatile *playback_read_pointer;
66
67	///////////////////////////////////////////////////////////////////////////////
68	// Helpers for the noise gate.
69	bool gEnableNoiseGate;
70	bool gUserSetEnableNoiseGate;
71	unsigned zero_count_left;
72	unsigned zero_count_right;
73	unsigned NOISE_HIS;
74	signed gNoiseGateThresh;
75	};
76
77
78	#endif //__TV_AUDIO_ANDROID_H__
79