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jLynx 2023-05-19 08:16:05 +12:00 • committed by GitHub
parent 7aca7ce74d
commit 033c4e9a5b
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72
firmware/common/sstv.hpp
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@ -1,7 +1,7 @@
/*
* Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
* Copyright (C) 2016 Furrtek
*
*
* This file is part of PortaPack.
*
* This program is free software; you can redistribute it and/or modify
@ -28,7 +28,7 @@ namespace sstv {
#define SSTV_SAMPLERATE 3072000
#define SSTV_DELTA_COEF ((1ULL << 32) / SSTV_SAMPLERATE)
#define SSTV_F2D(f) (uint32_t)((f) * SSTV_DELTA_COEF)
#define SSTV_F2D(f) (uint32_t)((f)*SSTV_DELTA_COEF)
#define SSTV_MS2S(d) (uint32_t)((d) / 1000.0 * (float)SSTV_SAMPLERATE)
#define SSTV_VIS_SS SSTV_F2D(1200)
@ -36,59 +36,59 @@ namespace sstv {
#define SSTV_VIS_ONE SSTV_F2D(1100)
enum sstv_color_seq {
SSTV_COLOR_RGB,
SSTV_COLOR_GBR,
SSTV_COLOR_YUV // Not supported for now
SSTV_COLOR_RGB,
SSTV_COLOR_GBR,
SSTV_COLOR_YUV // Not supported for now
};
#define SSTV_MODES_NB 6
// From http://www.graphics.stanford.edu/~seander/bithacks.html, nice !
constexpr inline uint8_t sstv_parity(uint8_t code) {
uint8_t out = code;
out ^= code >> 4;
out &= 0x0F;
return (((0b0110100110010110 >> out) & 1) << 7) | code;
uint8_t out = code;
out ^= code >> 4;
out &= 0x0F;
return (((0b0110100110010110 >> out) & 1) << 7) | code;
}
struct sstv_tone {
uint32_t frequency;
uint32_t duration;
uint32_t frequency;
uint32_t duration;
};
struct sstv_scanline {
sstv_tone start_tone;
sstv_tone gap_tone;
uint8_t luma[320];
sstv_tone start_tone;
sstv_tone gap_tone;
uint8_t luma[320];
};
struct sstv_mode {
char name[16];
uint8_t vis_code;
bool color; // Unused for now
sstv_color_seq color_sequence;
uint16_t pixels;
uint16_t lines;
uint32_t samples_per_pixel;
bool sync_on_first;
uint8_t sync_index;
bool gaps;
uint32_t samples_per_sync;
uint32_t samples_per_gap;
//std::pair<uint16_t, uint16_t> luma_range;
char name[16];
uint8_t vis_code;
bool color; // Unused for now
sstv_color_seq color_sequence;
uint16_t pixels;
uint16_t lines;
uint32_t samples_per_pixel;
bool sync_on_first;
uint8_t sync_index;
bool gaps;
uint32_t samples_per_sync;
uint32_t samples_per_gap;
// std::pair<uint16_t, uint16_t> luma_range;
};
constexpr sstv_mode sstv_modes[SSTV_MODES_NB] = {
{ "Scottie 1", sstv_parity(60), true, SSTV_COLOR_GBR, 320, 256, SSTV_MS2S(0.4320), true, 2, true, SSTV_MS2S(9), SSTV_MS2S(1.5) },
{ "Scottie 2", sstv_parity(56), true, SSTV_COLOR_GBR, 320, 256, SSTV_MS2S(0.2752), true, 2, true, SSTV_MS2S(9), SSTV_MS2S(1.5) },
{ "Scottie DX", sstv_parity(76), true, SSTV_COLOR_GBR, 320, 256, SSTV_MS2S(1.08), true, 2, true, SSTV_MS2S(9), SSTV_MS2S(1.5) },
{ "Martin 1", sstv_parity(44), true, SSTV_COLOR_GBR, 320, 256, SSTV_MS2S(0.4576), false, 0, true, SSTV_MS2S(4.862), SSTV_MS2S(0.572) },
{ "Martin 2", sstv_parity(40), true, SSTV_COLOR_GBR, 320, 256, SSTV_MS2S(0.2288), false, 0, true, SSTV_MS2S(4.862), SSTV_MS2S(0.572) },
{ "SC2-180", sstv_parity(55), true, SSTV_COLOR_RGB, 320, 256, SSTV_MS2S(0.7344), false, 0, false, SSTV_MS2S(5.5225), SSTV_MS2S(0.5) },
//{ "PASOKON 3", sstv_parity(113), true, SSTV_COLOR_RGB, 640, 496, SSTV_MS2S(0.2083), { 1500, 2300 } },
//{ "PASOKON 7", sstv_parity(115), true, SSTV_COLOR_RGB, 640, 496, SSTV_MS2S(0.4167), { 1500, 2300 } }
{"Scottie 1", sstv_parity(60), true, SSTV_COLOR_GBR, 320, 256, SSTV_MS2S(0.4320), true, 2, true, SSTV_MS2S(9), SSTV_MS2S(1.5)},
{"Scottie 2", sstv_parity(56), true, SSTV_COLOR_GBR, 320, 256, SSTV_MS2S(0.2752), true, 2, true, SSTV_MS2S(9), SSTV_MS2S(1.5)},
{"Scottie DX", sstv_parity(76), true, SSTV_COLOR_GBR, 320, 256, SSTV_MS2S(1.08), true, 2, true, SSTV_MS2S(9), SSTV_MS2S(1.5)},
{"Martin 1", sstv_parity(44), true, SSTV_COLOR_GBR, 320, 256, SSTV_MS2S(0.4576), false, 0, true, SSTV_MS2S(4.862), SSTV_MS2S(0.572)},
{"Martin 2", sstv_parity(40), true, SSTV_COLOR_GBR, 320, 256, SSTV_MS2S(0.2288), false, 0, true, SSTV_MS2S(4.862), SSTV_MS2S(0.572)},
{"SC2-180", sstv_parity(55), true, SSTV_COLOR_RGB, 320, 256, SSTV_MS2S(0.7344), false, 0, false, SSTV_MS2S(5.5225), SSTV_MS2S(0.5)},
//{ "PASOKON 3", sstv_parity(113), true, SSTV_COLOR_RGB, 640, 496, SSTV_MS2S(0.2083), { 1500, 2300 } },
//{ "PASOKON 7", sstv_parity(115), true, SSTV_COLOR_RGB, 640, 496, SSTV_MS2S(0.4167), { 1500, 2300 } }
};
} /* namespace sstv */
#endif/*__SSTV_H__*/
#endif /*__SSTV_H__*/