Diagram of a scale. On the left, the needed upload made up of video, audio, and protocol overhead, about 6.9 Mbit/s in the example; on the right, the sustained stable upload at 12 Mbit/s. Next to it, bars for one, two, and three direct outputs, each multiplying the demand, with 12.4 GB in four hours for one output. At the bottom, the note to leave at least about 25 percent headroom between needed and stable upload

More than just gigabytes per hour

The quality planner takes video, audio, protocol overhead, and multiple direct outputs into account. With server-side restreaming, on the other hand, the OBS computer still sends just one output.

Plan your stream profile

Upload needed

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Total data

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Upload headroom

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Guidance

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How much upload headroom does a mobile IRL stream need?

The peak speed you measure is not the upload rate you can use continuously. You switch between cells, other users load the cellular network, and movement causes short fluctuations. So don't plan your video bitrate right up to the result of a single speed test. A sensible starting point is at least 25 percent headroom; on changing routes or with only one connection, the gap can be much bigger.

720p or 1080p, 30 or 60 FPS?

A higher resolution only improves the stream if cellular, encoder, and platform can handle the bitrate it needs reliably. For fast-moving IRL scenes, a clean 720p30 profile can look better than a 1080p60 signal that keeps breaking down. For comparable picture quality, 60 FPS usually needs more bitrate and puts more load on the smartphone or encoder.

Little motion, talk formats, and long run times often allow a leaner setting. Motorcycle, bicycle, or camera-move shots create many picture changes and need either more bitrate or a deliberately lower resolution and frame rate.

Example: 6,000 kbit/s for four hours

With 6,000 kbit/s video, 160 kbit/s audio, and twelve percent protocol overhead, you need about 6.9 Mbit/s of upload. A four-hour broadcast produces roughly 12.4 GB of data per direct output. Two parallel platform outputs nearly double that. A server-side restreamer can take load off the mobile upload, because your own encoder only sends one stream to the distributor.

For more precise planning, you can also use the data usage calculator and the SRT/SRTLA latency and bonding calculator.

Distribute directly or on the server?

Three direct platform outputs need about three times the upload. A restreamer receives only one output and then distributes it on the server side. You still need to check encoder load, platform limits, and transcoding separately.

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Last technically reviewed: · Published by IRL4YOU