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Video channels and playback | Mingcedar

Configure the host media channel in the PowerPoint video template editor.

Published 2026-10-25T12:48:42.634870172Z Updated 2026-10-25T12:48:42.6348694Z

<div class="manual-doc-article manual-doc-article-section"><h2 id="media-channels">User guide: Video channels and playback</h2>

Configure gateways in Settings and channels in the video template editor, then play them through screen controls.

<h3 id="media-channels-item-1">Configure a channel and source</h3>

<p>Configure the host media channel in the PowerPoint video template editor.</p>

<ol>

<li>Select Host Camera (Configure or Select) under Playback Source, then set Channel Code and the camera source in Camera Configuration. Sources support RTSP/RTSPS, RTMP/RTMPS, HTTP(S) and other schemes, subject to gateway and codec compatibility.</li>

<li>Save with Save to Host, then use Apply and Check for gateway readiness and Preview in Browser for first-frame and continuous playback. Gateway readiness does not prove decoding; verify playback before referencing the channel code in a screen control.</li>

<li>The host manages credentialed sources while the screen package stores the channel reference. Restore both when migrating. Direct HTTP(S) Playback URL accepts only browser-playable HTTP(S) addresses, not RTSP or RTMP camera source addresses.</li>

</ol>

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<h3 id="media-channels-item-2">Gateway and on-demand playback</h3>

<p>Location: Settings → Video service.</p>

<ol>

<li>With managed MediaMTX, the system manages the gateway addresses. To use an existing gateway, disable managed mode, select its type, and enter the playback URL. An existing MediaMTX gateway also needs its control API URL; an external WHEP gateway does not.</li>

<li>Open a runtime screen containing the video control and check first-frame playback, continuity and release after leaving. Playback is established on demand by default.</li>

<li>If playback fails, inspect the source device, host-to-source network, gateway, browser-to-gateway access and codec compatibility.</li>

</ol>

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