src/audio/backend/silent_backend.cc


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// This file is part of the 64k demo project.
// Implementation of silent backend for testing audio.cc.

#include "silent_backend.h"

#if !defined(STRIP_ALL)

SilentBackend::SilentBackend()
    : initialized_(false), started_(false), frames_rendered_(0),
      voice_trigger_count_(0), test_peak_(0.0f) {
}

SilentBackend::~SilentBackend() {
  shutdown();
}

void SilentBackend::init() {
  initialized_ = true;
}

void SilentBackend::start() {
  started_ = true;
}

void SilentBackend::shutdown() {
  initialized_ = false;
  started_ = false;
}

float SilentBackend::get_realtime_peak() {
  // Return controllable test peak
  return test_peak_;
}

void SilentBackend::on_voice_triggered(float timestamp, int spectrogram_id,
                                        float volume, float pan) {
  // Track voice triggers for testing
  (void)timestamp;
  (void)spectrogram_id;
  (void)volume;
  (void)pan;
  voice_trigger_count_.fetch_add(1);
}

void SilentBackend::on_frames_rendered(int num_frames) {
  // Track total frames rendered for testing
  frames_rendered_.fetch_add(num_frames);
}

#endif /* !defined(STRIP_ALL) */