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| author | Leah Rowe <leah@libreboot.org> | 2026-03-12 23:18:26 +0000 |
|---|---|---|
| committer | Leah Rowe <leah@libreboot.org> | 2026-03-12 23:18:26 +0000 |
| commit | 88ca9e6f033f9959d0a6ef3e47a81139a2dfdd1d (patch) | |
| tree | a17009dcfe942850ae1897f6390886d8671f04fc /util/spkmodem_decode/spkmodem-decode.c | |
| parent | 3189e3e07992e364370416ad9dbe4bad14c6ea48 (diff) | |
util/spkmodem-decode: guard against silence in tone-detect
Signed-off-by: Leah Rowe <leah@libreboot.org>
Diffstat (limited to 'util/spkmodem_decode/spkmodem-decode.c')
| -rw-r--r-- | util/spkmodem_decode/spkmodem-decode.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/util/spkmodem_decode/spkmodem-decode.c b/util/spkmodem_decode/spkmodem-decode.c index 7e199430..6c7c03df 100644 --- a/util/spkmodem_decode/spkmodem-decode.c +++ b/util/spkmodem_decode/spkmodem-decode.c @@ -482,7 +482,9 @@ auto_detect_tone(struct decoder_state *st) f = st->freq_data; if (st->freq_separator > 0 && st->freq_separator < f) f = st->freq_separator; - if (f > 0) { + if (f > 0 || /* prevent noise from corrupting tone-learning */ + st->freq_data > 2 || /* <--- stop from */ + st->freq_separator > 2) { /* learning silence if no signal */ if (f < st->freq_min) st->freq_min = f; |