capture->set_card_index(free_card_index);
configure_card(free_card_index, capture, CardType::FFMPEG_INPUT, /*output=*/nullptr, /*is_srt_card=*/true);
card->srt_metrics.update_srt_stats(sock); // Initial zero stats.
capture->set_card_index(free_card_index);
configure_card(free_card_index, capture, CardType::FFMPEG_INPUT, /*output=*/nullptr, /*is_srt_card=*/true);
card->srt_metrics.update_srt_stats(sock); // Initial zero stats.