Function export_frame_masks

examples/main_video.cpp:346–355

}

static void export_frame_masks(const vapp_state& app) {
    for (size_t i = 0; i < app.result.detections.size(); ++i) {
        char path[256];
        snprintf(path, sizeof(path), "frame%04d_mask%02d.png",
                 app.frame_index, (int)i);
        if (sam3_save_mask(app.result.detections[i].mask, path)) {
            fprintf(stderr, "Exported %s\n", path);
        }
    }
}

// ── Main ─────────────────────────────────────────────────────────────────────