comicsansg/CubicSDR
1
0
Fork 0
mirror of https://github.com/cjcliffe/CubicSDR.git synced 2026-07-12 13:54:16 -04:00
Code Issues Projects Releases Wiki Activity

Bandwidth change patch

Browse Source
This commit is contained in:
Charles J. Cliffe
2015-01-23 02:09:37 -05:00
parent dd9bc9aa2c
commit c55b94eee1
2 changed files with 36 additions and 21 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/demod/DemodulatorWorkerThread.cpp
+19 -12
View File
@@ -24,9 +24,6 @@ void DemodulatorWorkerThread::threadMain() {
commandQueue->pop(command);
switch (command.cmd) {
case DemodulatorWorkerThreadCommand::DEMOD_WORKER_THREAD_CMD_BUILD_FILTERS:
if (!filterCommand.bandwidth || !filterCommand.audioSampleRate) {
break;
}
filterChanged = true;
filterCommand = command;
break;
@@ -40,18 +37,28 @@ void DemodulatorWorkerThread::threadMain() {
if (filterChanged && !terminated) {
DemodulatorWorkerThreadResult result(DemodulatorWorkerThreadResult::DEMOD_WORKER_THREAD_RESULT_FILTERS);
result.iqResampleRatio = (double) (filterCommand.bandwidth) / (double) filterCommand.sampleRate;
result.audioResamplerRatio = (double) (filterCommand.audioSampleRate) / (double) filterCommand.bandwidth;
float As = 60.0f; // stop-band attenuation [dB]
result.iqResampler = msresamp_crcf_create(result.iqResampleRatio, As);
result.audioResampler = msresamp_rrrf_create(result.audioResamplerRatio, As);
result.stereoResampler = msresamp_rrrf_create(result.audioResamplerRatio, As);
if (filterCommand.sampleRate && filterCommand.bandwidth) {
result.iqResampleRatio = (double) (filterCommand.bandwidth) / (double) filterCommand.sampleRate;
result.iqResampler = msresamp_crcf_create(result.iqResampleRatio, As);
}
if (filterCommand.bandwidth && filterCommand.audioSampleRate) {
result.audioResamplerRatio = (double) (filterCommand.audioSampleRate) / (double) filterCommand.bandwidth;
result.audioResampler = msresamp_rrrf_create(result.audioResamplerRatio, As);
result.stereoResampler = msresamp_rrrf_create(result.audioResamplerRatio, As);
result.audioSampleRate = filterCommand.audioSampleRate;
}
if (filterCommand.bandwidth) {
result.bandwidth = filterCommand.bandwidth;
}
if (filterCommand.sampleRate) {
result.sampleRate = filterCommand.sampleRate;
}
result.audioSampleRate = filterCommand.audioSampleRate;
result.bandwidth = filterCommand.bandwidth;
result.sampleRate = filterCommand.sampleRate;
resultQueue->push(result);
}