const char* gguf = std::getenv("PARAKEET_TEST_GGUF");

const char* base = std::getenv("PARAKEET_TEST_BASELINE");

if(!gguf||!base){ std::fprintf(stderr,"env not set; skip\n"); return 77; }

pk::ModelLoader ml; if(!ml.load(gguf)) return 1;

pk::Audio a; if(!pk::load_audio_16k_mono("tests/fixtures/clip.wav", a)) return 1;

pk::MelFrontend mel(ml); // pulls fb/window/config from loader

std::vector<float> feats; int n_mels=0, T=0;

mel.compute(a.samples, feats, n_mels, T); // feats row-major [n_mels, T]

std::vector<float> ref; std::vector<int64_t> shape;

if(!pktest::load_baseline(base, "mel", ref, shape)) return 1;

// baseline "mel" is [n_mels, T] (squeezed). Sizes must match.

bool ok = pktest::compare(feats, ref, "mel", /*atol*/1e-2f, /*rtol*/1e-2f);

return ok?0:1;