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Reorder squelch code to group things a bit more logically.

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This commit is contained in:
Jared Boone 2016-01-04 09:01:51 -08:00
parent b0855b3c4d
commit 8fb3ffaedc
1 changed files with 5 additions and 3 deletions
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8
firmware/baseband/proc_nfm_audio.cpp
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@ -38,14 +38,16 @@ void NarrowbandFMAudio::execute(const buffer_c8_t& buffer) {
auto audio = demod.execute(channel_out, work_audio_buffer);
static uint64_t audio_present_history = 0;
// Yes, evaluate squelch here, but do audio filtering regardless to keep glitches
// out of the filters. Zero out audio *after* filtering, based on squelch status.
const auto audio_present_now = squelch.execute(audio);
audio_present_history = (audio_present_history << 1) | (audio_present_now ? 1 : 0);
const bool audio_present = (audio_present_history != 0);
audio_hpf.execute_in_place(audio);
audio_deemph.execute_in_place(audio);
static uint64_t audio_present_history = 0;
audio_present_history = (audio_present_history << 1) | (audio_present_now ? 1 : 0);
const bool audio_present = (audio_present_history != 0);
if( !audio_present ) {
// Zero audio buffer.
for(size_t i=0; i<audio.count; i++) {