mirror of
https://github.com/radio95-rnt/fm95.git
synced 2026-02-27 03:23:54 +01:00
remove some
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22
src/fm95.c
22
src/fm95.c
@@ -10,7 +10,6 @@
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#define DEFAULT_STEREO_POLAR 0
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#define DEFAULT_STEREO_SSB 0
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#define DEFAULT_CLIPPER_THRESHOLD 1.0f
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#define DEFAULT_SOFT_CLIPPER_THRESHOLD 0.95f
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#define DEFAULT_SCA_FREQUENCY 67000.0f
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#define DEFAULT_SCA_DEVIATION 7000.0f
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#define DEFAULT_SCA_CLIPPER_THRESHOLD 1.0f // Full deviation, if you set this to 0.5 then you may as well set the deviation to 3.5k
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@@ -44,8 +43,6 @@
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#define MPX_VOLUME 1.0f
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#define LPF_CUTOFF 15000 // Should't need to be changed
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#define HPF_CUTOFF 30 // Unless you wanna have SOME bass then leave this alone
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#define CENTER_BASS 50 // Bass upto this will be mono
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volatile sig_atomic_t to_run = 1;
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@@ -79,7 +76,6 @@ void show_help(char *name) {
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" -F,--sca_dev Override the SCA deviation [default: %.2f]\n"
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" -L,--sca_clip Override the SCA clipper threshold [default: %.2f]\n"
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" -c,--clipper Override the clipper threshold [default: %.2f]\n"
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" -l,--soft_clip Override the soft clipper threshold [default: %.2f]\n"
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" -P,--polar Force Polar Stereo (does not take effect with -m%s)\n"
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" -g,--ge Force Zenith/GE stereo (does not take effect with -m%s)\n"
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" -S,--ssb Force SSB [default: %d]\n"
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@@ -106,7 +102,6 @@ void show_help(char *name) {
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,DEFAULT_SCA_DEVIATION
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,DEFAULT_SCA_CLIPPER_THRESHOLD
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,DEFAULT_CLIPPER_THRESHOLD
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,DEFAULT_SOFT_CLIPPER_THRESHOLD
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,(DEFAULT_STEREO_POLAR == 1) ? ", default" : ""
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,(DEFAULT_STEREO_POLAR == 1) ? "" : ", default"
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,DEFAULT_STEREO_SSB
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@@ -124,7 +119,6 @@ int main(int argc, char **argv) {
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pa_simple *output_device;
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float clipper_threshold = DEFAULT_CLIPPER_THRESHOLD;
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float soft_clipper_threshold = DEFAULT_SOFT_CLIPPER_THRESHOLD;
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int stereo = DEFAULT_STEREO;
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int polar_stereo = DEFAULT_STEREO_POLAR;
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int ssb = DEFAULT_STEREO_SSB;
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@@ -165,7 +159,6 @@ int main(int argc, char **argv) {
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{"sca_dev", required_argument, NULL, 'F'},
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{"sca_clip", required_argument, NULL, 'L'},
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{"clipper", required_argument, NULL, 'c'},
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{"soft_clip", required_argument, NULL, 'l'},
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{"polar", no_argument, NULL, 'P'},
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{"ge", no_argument, NULL, 'g'},
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{"ssb", no_argument, NULL, 'S'},
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@@ -211,9 +204,6 @@ int main(int argc, char **argv) {
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case 'c': //Clipper
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clipper_threshold = strtof(optarg, NULL);
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break;
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case 'l': //Soft Clipper
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soft_clipper_threshold = strtof(optarg, NULL);
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break;
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case 'P': //Polar
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polar_stereo = 1;
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break;
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@@ -403,13 +393,6 @@ int main(int argc, char **argv) {
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BiquadFilter lpf_l, lpf_r;
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init_lpf(&lpf_l, LPF_CUTOFF, 1.0f, SAMPLE_RATE);
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init_lpf(&lpf_r, LPF_CUTOFF, 1.0f, SAMPLE_RATE);
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BiquadFilter hpf_l, hpf_r;
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init_hpf(&hpf_l, HPF_CUTOFF, 1.0f, SAMPLE_RATE);
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init_hpf(&hpf_r, HPF_CUTOFF, 1.0f, SAMPLE_RATE);
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BiquadFilter bass_hpf;
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init_hpf(&bass_hpf, CENTER_BASS, 1.0f, SAMPLE_RATE);
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// #endregion
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signal(SIGINT, stop);
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@@ -452,19 +435,14 @@ int main(int argc, char **argv) {
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float ready_l = apply_frequency_filter(&lpf_l, l_in);
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float ready_r = apply_frequency_filter(&lpf_r, r_in);
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ready_l = apply_frequency_filter(&hpf_l, ready_l);
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ready_r = apply_frequency_filter(&hpf_r, ready_r);
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ready_l = apply_preemphasis(&preemp_l, ready_l);
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ready_r = apply_preemphasis(&preemp_r, ready_r);
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ready_l = soft_clip(ready_l, soft_clipper_threshold);
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ready_r = soft_clip(ready_r, soft_clipper_threshold);
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ready_l = hard_clip(ready_l, clipper_threshold);
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ready_r = hard_clip(ready_r, clipper_threshold);
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float mono = (ready_l + ready_r) / 2.0f; // Stereo to Mono
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if(stereo == 1) {
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float stereo = (ready_l - ready_r) / 2.0f; // Also Stereo to Mono but a bit diffrent
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if(CENTER_BASS != 0) stereo = apply_frequency_filter(&bass_hpf, stereo);
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float stereo_i, stereo_q;
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if(ssb) {
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