Function planar_index

src/framework/audio/chunking.cpp:42–44

        (spec.reflect_min_valid_samples <= 0 ||
         span.valid_samples >= spec.reflect_min_valid_samples);
}

size_t planar_index(int64_t lane, int64_t frame, int64_t frames) {
    return static_cast<size_t>(lane * frames + frame);
}