kopia lustrzana https://github.com/alpov/SatCam
46 wiersze
1.6 KiB
C
46 wiersze
1.6 KiB
C
#ifndef _AUDIO_H_
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#define _AUDIO_H_
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#define SAMPLE_FREQ 20000 // sampling rate
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#define AUDIO_BUFFER_LEN 4096 // audio buffer size
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#define AUDIO_TIMEOUT 150000 // max audio transmission (150sec)
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#define AUDIO_VOLUME_SSTV ((q15_t)(0.9 * 32767)) // peak volume in Q15
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#define AUDIO_VOLUME_PSK ((q15_t)(0.4 * 32767)) // peak volume in Q15
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#define AUDIO_VOLUME_MORSE ((q15_t)(0.9 * 32767)) // peak volume in Q15
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#define AUDIO_RESET_IDX 0x01
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#define AUDIO_RESET_PHI 0x02
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#define AUDIO_START_PHI 0x04
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#define PSK_SYM_0 0
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#define PSK_SYM_1 1
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#define PSK_SYM_START 2
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#define PSK_SYM_STOP 3
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#define DITLEN 1 // Length of a dot
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#define DAHLEN 3 // Length of a dash
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#define IEGLEN 1 // Length of inter-element gap
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#define ICGLEN 3 // Length of inter-character gap
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#define IWGLEN 7 // Length of inter-word gap
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#define CHROMA_R_Y 0 // Rgb
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#define CHROMA_B_Y 2 // rgB
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extern void audio_start();
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extern void audio_stop();
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extern void audio_psk(uint16_t speed, uint16_t freq, const char *s);
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extern void audio_morse(uint16_t wpm, uint16_t freq, const char *s);
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extern void audio_play_vox_start();
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extern void audio_play_vox_stop();
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extern void audio_play_vis(uint8_t vis);
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extern void audio_play_vis16(uint16_t vis16);
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extern void audio_robot36_color(uint8_t *scanline);
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extern void audio_robot72_color(uint8_t *scanline);
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extern void audio_mp73(uint8_t *scanline);
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extern void audio_mp115(uint8_t *scanline);
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#endif /* _AUDIO_H_ */
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