Running your own media servers gives you control, and it also gives you an on-call rota. This is how to tell when it has stopped paying off, and how to move to a managed platform without a risky cutover.
What “self-hosted video infrastructure” means
Self-hosted video infrastructure is the set of servers your team runs so that calls, rooms and streams work: the media servers (usually SFUs, which forward each person’s audio and video to everyone else), the signaling service, a token service for joining rooms, TURN servers for hard networks, and the recording or egress jobs on the side.
The client app usually talks to all of this through a thin SDK. That detail matters for a migration: if your app already joins a room and publishes audio and video through one small layer, replacing what sits behind that layer is a contained change, not a rewrite of the product.
Signs it is time to migrate
Self-hosting is a legitimate choice, and some teams should keep it. Migration is worth a serious look when several of these are true:
- The pager is the product. Engineers spend more time on ICE failures, TURN capacity and server upgrades than on features users can see.
- One person holds the knowledge. If a single engineer understands the media stack, their holiday is a risk.
- Features keep queueing behind infrastructure. Recording, AI agents, beauty filters and live chat all want to be added to the rooms you already run.
- Your usage is spiky. Servers sized for launch night sit idle the rest of the month.
- The real cost is not on the invoice. Add up server bills, bandwidth, monitoring, and the engineering time that goes into keeping calls working.
If your team is small, calls are central to the product, and nobody wants to run media servers, a managed platform is usually the better use of engineering time. If you have a media team, steady heavy traffic and special requirements, the answer may be to stay. Run your own numbers before deciding either way.
What to inventory before you move
Write down what the current system does, because the new platform has to cover every item:
- Room types: one-to-one calls, group calls, audio rooms, live streams with a large audience.
- Join and auth flow: how clients get a token, what roles exist (host, speaker, viewer), how tokens expire.
- Extras: recording, screen share, chat, gifts or reactions, moderation.
- Clients: which platforms ship today (Flutter, Android, iOS, web) and which SDK versions are in the field.
- Metrics you trust: join success rate, time to join, dropped calls, and the quality complaints users actually send.
Those metrics are your yardstick. Without them you cannot tell whether the migration helped.
A phased migration plan
A good migration is a series of reversible steps, not a single cutover night.
- Measure the old path. Capture the metrics above for at least a normal week, so you have a baseline.
- Put an interface in front of the vendor. In the app, wrap join, publish and leave behind your own small interface. Both the old stack and the new platform sit behind it.
- Build the new path in a test app. Join rooms, publish and subscribe on every platform you ship. Check the token flow with your own backend.
- Canary. Send internal users and a small allowlist of rooms to the new platform, controlled by a server-side flag. Compare the same metrics.
- Move in waves. Widen the allowlist, off-peak first, keeping the old path switched on so any room can be sent back.
- Keep the fallback for a while. Turn the old servers off only after a full cycle with no rollbacks, including your busiest day of the week.
Nothing here needs downtime, because users are moved room by room rather than all at once.
Where Gravix Cloud fits
Gravix Cloud is the platform we build and use ourselves. It covers voice calls, video calls, live audio rooms, live streaming, AI voice and video agents and a real-time beauty filter, with SDKs for Flutter, Web, Android and iOS. There is nothing for your team to run: no media servers, no TURN fleet.
Joining a room follows the same shape most self-hosted apps already use: your backend issues a token, and the client connects with it. That is why the migration is mostly a change behind your interface. Gravix Cloud includes 10,000 free minutes to start, so you can run the canary on real traffic before you commit.
If you are still choosing between providers, read Gravix Cloud vs Agora vs ZEGOCLOUD first. If you would rather have a team do the move, we also do this as a project: see video calling app development or contact us.
Pitfalls to plan for
- Token and role mapping. Check that every role in your old system (host, co-host, viewer) has an equivalent, and test token expiry.
- Recordings and history. Decide what happens to existing recordings and where new ones live before you switch.
- Mixed SDK versions in the field. Old app versions keep using the old path until users update, so keep it alive long enough.
- Network diversity. Test on cellular and on restrictive networks, not just office Wi-Fi.
- Data and compliance. Confirm where media and metadata are handled and what your policies require.
Frequently asked questions
How do I migrate from self-hosted video infrastructure?
Measure the current system, put your own interface in front of the media layer, build the new path in a test app, canary a small allowlist of rooms, move in waves and keep the old path available until a full cycle passes without rollbacks.
Do I need downtime to migrate?
No. Because you move users room by room behind a server-side flag, the old and new paths run side by side and any room can be sent back.
Will I need to rewrite my app?
Usually not. If the app already joins and publishes through a thin layer, you replace what is behind that layer. Apps that call media servers directly from many places need a refactor first, which is the second step above.
When should I stay self-hosted instead?
When you already have people who run media infrastructure well, your traffic is steady and heavy enough that owning the servers is clearly cheaper for you, or you have requirements a managed platform cannot meet. Compare real numbers for your own usage.
Which platforms does Gravix Cloud support?
Flutter, Web, Android and iOS SDKs. See the Gravix Cloud page for the products and current details.
Can Gravity Compile run the migration for us?
Yes. We build video calling and live streaming apps and make Gravix Cloud. Tell us about your project and we will reply with a plan.