diff options
| author | Andreas Eversberg <jolly@eversberg.eu> | 2017-07-30 22:03:51 +0200 |
|---|---|---|
| committer | Andreas Eversberg <jolly@eversberg.eu> | 2017-08-08 12:54:03 +0200 |
| commit | 5090f5a18d0c6a0494fe92268112613fef9be0e0 (patch) | |
| tree | 2235e80805b52bde2bdec707ebb781335e43b54e /src | |
| parent | 0cbd9657d20fb300d4fc2039ec137988eb40d21a (diff) | |
SDR: Show IQ data with three colors to detect input overdrive
green: up to 0.45
yellow: between 0.45 and 0.9
red: above 0.9
Diffstat (limited to 'src')
| -rw-r--r-- | src/common/display_iq.c | 25 |
1 files changed, 21 insertions, 4 deletions
diff --git a/src/common/display_iq.c b/src/common/display_iq.c index 6a27485..9df3725 100644 --- a/src/common/display_iq.c +++ b/src/common/display_iq.c @@ -181,7 +181,13 @@ void display_iq(float *samples, int length) screen[y/2][x] = '\''; else screen[y/2][x] = '.'; - if (L > 1.0) + /* overdrive: + * 2 = close to -1..1 or above + * 1 = close to -0.5..0.5 or above + */ + if (L > 0.9) + overdrive[y/2][x] = 2; + else if (L > 0.45 && overdrive[y/2][x] < 1) overdrive[y/2][x] = 1; } if (iq_on == 1) @@ -214,13 +220,24 @@ void display_iq(float *samples, int length) putchar('|'); } } else if (screen[j][k] == ':' || screen[j][k] == '.' || screen[j][k] == '\'') { - /* red / green plot */ - if (overdrive[j][k]) { + /* red / yellow / green plot */ + switch (overdrive[j][k]) { + case 2: + /* red */ if (color != 1) { color = 1; printf("\033[1;31m"); } - } else { + break; + case 1: + /* yellow */ + if (color != 3) { + color = 3; + printf("\033[1;33m"); + } + break; + default: + /* green */ if (color != 2) { color = 2; printf("\033[1;32m"); |