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idea4good
2019-11-08 23:11:45 +08:00
parent 5f63734089
commit 5bbbc41898
102 changed files with 12014 additions and 40 deletions
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36
workspace/widgets_include/wave_buffer.h Normal file
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#ifndef GUILITE_WIDGETS_INCLUDE_WAVE_BUFFER_H
#define GUILITE_WIDGETS_INCLUDE_WAVE_BUFFER_H
#define WAVE_BUFFER_LEN 1024
#define WAVE_READ_CACHE_LEN 8
#define BUFFER_EMPTY -1111
#define BUFFER_FULL -2222;
class c_wave_buffer
{
public:
c_wave_buffer();
int write_wave_data(short data);
int read_wave_data_by_frame(short &max, short &min, short frame_len, unsigned int sequence, short offset);
void reset();
void clear_data();
short get_cnt();
private:
int read_data();
short m_wave_buf[WAVE_BUFFER_LEN];
short m_head;
short m_tail;
int m_min_old;
int m_max_old;
int m_min_older;
int m_max_older;
int m_last_data;
short m_read_cache_min[WAVE_READ_CACHE_LEN];
short m_read_cache_mid[WAVE_READ_CACHE_LEN];
short m_read_cache_max[WAVE_READ_CACHE_LEN];
short m_read_cache_sum;
unsigned int m_refresh_sequence;
};
#endif