path: root/tvapi/libtv/audio/audio_android.h (plain)
blob: 621fa1a84dcc1bafbecdf29c3d9b177d002be12c

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	{
15	public:
16	CAndroidAudio(CAudioAlsa *);
17	~CAndroidAudio();
18	int amAndroidInit(int tm_sleep, int init_flag, int recordSr, int trackSr,
19	bool enable_noise_gat);
20	int amAndroidUninit(int tm_sleep);
21	int amAndroidSetRecorderSr(int sr);
22	int amAndroidSetTrackerSr(int sr);
23	int amAndroidSetDumpDataFlag(int tmp_flag);
24	int amAndroidGetDumpDataFlag();
25	void amAndroidSetNoiseGateThreshold(int thresh);
26	void reset_system_framesize(int input_sample_rate, int output_sample_rate);
27
28	private:
29	void DoDumpData(void *data_buf, int size);
30	void noise_filter_init();
31	int noise_filter_left(int);
32	int noise_filter_right(int);
33	void DeleteAudioRecorder();
34	void FreeAudioRecorder();
35	void DeleteAudioTracker();
36	void FreeAudioTracker();
37	int InitTempBuffer();
38	void FreeTempBuffer();
39	void ResetRecordWritePointer();
40	void ResetPlaybackReadPointer();
41	void ResetPointer();
42	short int clip(int);
43	int upsample(short int *, short int *, unsigned int, unsigned int, unsigned int);
44	int downsample(short int *, short int *, unsigned int, unsigned int, unsigned int);
45	int GetWriteSpace(volatile short int *, volatile short int *);
46	int GetReadSpace(volatile short int *, volatile short int *);
47	void recorderCallback(int, void *, void *);
48	void trackerCallback(int, void *, void *);
49	int initAudioTracker(int);
50	int initAudioRecorder(int);
51
52	CAudioAlsa *mpAudioAlsa;
53	int mDumpDataFlag;
54	int mDumpDataFd;
55	AudioRecord *mlpRecorder;
56	AudioTrack *mlpTracker;
57
58	#if ANDROID_PLATFORM_SDK_VERSION >= 19
59	sp<AudioTrack> mmpAudioTracker;
60	sp<AudioRecord> mmpAudioRecorder;
61	#endif
62
63	short *temp_buffer;
64	short *end_temp_buffer;
65	short volatile *record_write_pointer;
66	short volatile *playback_read_pointer;
67
68	///////////////////////////////////////////////////////////////////////////////
69	// Helpers for the noise gate.
70	bool gEnableNoiseGate;
71	bool gUserSetEnableNoiseGate;
72	unsigned zero_count_left;
73	unsigned zero_count_right;
74	unsigned NOISE_HIS;
75	signed gNoiseGateThresh;
76	};
77
78
79	#endif //__TV_AUDIO_ANDROID_H__
80