Function require_power_of_two_log2

src/models/vevo2/components.cpp:71–81

};

int64_t conv1d_output_frames(int64_t frames, int64_t kernel, int64_t stride, int64_t padding, int64_t dilation = 1) {
    return (frames + 2 * padding - dilation * (kernel - 1) - 1) / stride + 1;
}

int64_t coco_output_frames(int64_t input_frames, int64_t downsample_rate) {
    int64_t frames = input_frames;
    int64_t remaining = downsample_rate;
    while (remaining > 1 && remaining % 2 == 0) {
        frames = conv1d_output_frames(frames, 3, 2, 1);
        remaining /= 2;
    }
    if (remaining != 1) {
        throw std::runtime_error("Vevo2 Coco downsample_rate must be a positive power of two");
    }