| 65 | } |
| 66 | |
| 67 | void ModemAnalog::buildAudioOutput(ModemKitAnalog *akit, AudioThreadInput *audioOut, bool autoGain) { |
| 68 | unsigned int numAudioWritten; |
| 69 | |
| 70 | if (autoGain) { |
| 71 | aOutputCeilMA = aOutputCeilMA + (aOutputCeil - aOutputCeilMA) * 0.025f; |
| 72 | aOutputCeilMAA = aOutputCeilMAA + (aOutputCeilMA - aOutputCeilMAA) * 0.025f; |
| 73 | aOutputCeil = 0; |
| 74 | |
| 75 | for (size_t i = 0; i < bufSize; i++) { |
| 76 | if (demodOutputData[i] > aOutputCeil) { |
| 77 | aOutputCeil = demodOutputData[i]; |
| 78 | } |
| 79 | } |
| 80 | |
| 81 | float gain = 0.5f / aOutputCeilMAA; |
| 82 | |
| 83 | for (size_t i = 0; i < bufSize; i++) { |
| 84 | demodOutputData[i] *= gain; |
| 85 | } |
| 86 | } |
| 87 | |
| 88 | msresamp_rrrf_execute(akit->audioResampler, &demodOutputData[0], (int)demodOutputData.size(), &resampledOutputData[0], &numAudioWritten); |
| 89 | |
| 90 | audioOut->channels = 1; |
| 91 | audioOut->sampleRate = akit->audioSampleRate; |
| 92 | audioOut->data.assign(resampledOutputData.begin(), resampledOutputData.begin() + numAudioWritten); |
| 93 | } |
| 94 | |
| 95 | std::vector<float> *ModemAnalog::getDemodOutputData() { |
| 96 | return &demodOutputData; |