oliverdavies.uk/source/_partials/talk/video.html.twig

{% macro videoSrc(talk) %}
    {# TODO: Cleanup once videos have been added to talks properly. #}
    {% if talk.youtube %}
        {% set videoType = 'youtube' %}
        {% set videoId = talk.youtube.id %}
    {% endif %}

    {% if talk.vimeo %}
        {% set videoType = 'vimeo' %}
        {% set videoId = talk.vimeo.id %}
    {% endif %}

    {% if talk.video %}
        {% set videoType = talk.video.type %}
        {% set videoId = talk.video.id %}
    {% endif %}

    {% set srcUrls = {
        youtube: '//www.youtube.com/embed',
        videopress: 'https://videopress.com/embed',
        vimeo: 'https://player.vimeo.com/video',
    } %}

    {{ srcUrls[videoType] ~ '/' ~ videoId }}
{% endmacro %}

{% from _self import videoSrc %}

{# TODO: Cleanup once videos have been added to talks properly. #}
{% if page.youtube.id or page.vimeo.id or page.video %}
    <div class="mt-4">
        <h2 class="mb-2">Video</h2>

        <div class="video-full">
            <iframe
                width="678"
                height="408"
                src="{{ videoSrc(page) }}"
                frameborder="0"
                allowfullscreen
            >
            </iframe>
        </div>
    </div>
{% endif %}