itten
58 lines
2.0 KiB
C++
58 lines
2.0 KiB
C++
#include <string>
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#include "NodeBase.hpp"
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#include "FlowDef.hpp"
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#include <mxl/flow.h>
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#include <mxl/time.h>
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namespace dmf {
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class GainDbNode: public dmf::NodeBase {
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void run() override {
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if (!config().contains("audio_in_flow_id") || !config().contains("audio_out_flow_id")) {
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log("no audio connected to in or out");
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return;
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}
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const std::string in_flow_id = config().at("audio_in_flow_id").at("id").get<std::string>();
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dmf::AudioFlowInfo in_flow_info = dmf::read_audio_flow_info(domain(), in_flow_id);
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int gain = 0;
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if (config().contains("gain")) {
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gain = config().at("gain").get<int>();
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}
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// create writer
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int sample_rate = in_flow_info.sample_rate;
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const std::string out_flow_id = config().at("audio_out_flow_id").at("id").get<std::string>();
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std::string flow_def = dmf::make_audio_flow_def(
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out_flow_id,
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node_id(),
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sample_rate,
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in_flow_info.channels,
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32,
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sample_rate,
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in_flow_info.samples_per_grain
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);
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mxlFlowWriter writer{};
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mxlFlowConfigInfo cfg{};
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bool created = false;
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mxlStatus st = mxlCreateFlowWriter(instance(), flow_def.c_str(), nullptr, &writer, &cfg, &created);
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if (st != MXL_STATUS_OK) {
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log("audio mxlCreateFlowWriter failed (%s) — continuing without audio", dmf::mxl_status_str(st));
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} else {
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log("audio channels=%u buffer=%u samples",
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cfg.continuous.channelCount, cfg.continuous.bufferLength);
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}
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const mxlRational rate = {sample_rate, 1};
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uint64_t index = mxlGetCurrentIndex(&rate);
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while (dmf::g_running.load(std::memory_order_relaxed)) {
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mxlMutableBufferSlice slice{};
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uint8_t* buf = nullptr;
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}
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mxlReleaseFlowWriter(instance(), writer);
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}
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};
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}
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int main() {
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dmf::GainDbNode node;
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return node.execute();
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} |