Streaming Architecture
Video Transcoding
Reviewed by Abhinav · OTT & StreamingLast updated: 2026-07-01
Video transcoding converts a source video into multiple formats, resolutions, and bitrates for adaptive streaming across devices. It's the processing step that produces the ABR ladder every player draws from — the same core process as transcoding, applied to video.
Enveu take
Video transcoding is where quality, cost, and reach are decided — the ladder you generate sets both your bandwidth bill and how well playback holds on weak networks.
StreamingProcessingDelivery
Automate it with FlowAutomate transcoding in a Flow pipeline — media workflow automation, no custom code
Where it fits in the OTT stack
Source/Mezzanine→Transcoder→Packager (HLS/DASH)→CDN
How it works
- A source/master file enters the transcoding pipeline.
- It's re-encoded into multiple bitrate/resolution renditions.
- Each rendition is segmented and packaged for HLS/DASH.
- The CDN delivers the right rendition adaptively per viewer.
Key components
- Codec and encoder settings
- ABR ladder (bitrate/resolution rungs)
- Packaging (HLS/DASH/CMAF)
- DRM application
Performance impact
- Defines streaming quality and device reach
- Ladder design drives CDN/bandwidth cost
- Compute-intensive — pipeline efficiency matters
Common issues
- Ladder missing low rungs for weak networks
- Over-/under-encoding
- Slow pipelines delaying publishing
When it's used
- Required for virtually all OTT VOD and live delivery
Signals to monitor
- Encode time and throughput
- Average bitrate vs quality
- CDN egress per stream
Real-world example
Tuning the ABR ladder
Streams looked good but cost too much to deliver.
Challenge
- Bitrate ladder too high across the board
- Weak networks still stalled
Action taken
- Redesigned the ABR ladder with efficient rungs
- Added a newer codec for capable devices
Outcome
Bandwidth cost fell while playback held up better on poor networks.
Frequently asked questions
What is video transcoding?
Video transcoding converts a source video into multiple formats, resolutions, and bitrates for adaptive streaming across devices — producing the adaptive bitrate ladder players use.
Is video transcoding the same as transcoding?
Yes — 'video transcoding' refers to transcoding applied to video: converting an encoded source into other formats, resolutions, or bitrates for streaming delivery.
Why does video transcoding affect cost?
The bitrate ladder it produces determines how much data is delivered per stream, which drives CDN egress — so ladder design directly affects delivery cost.
How long should transcoding take?
With parallel cloud encoding, a typical 1080p feature can be laddered in well under real time — often minutes rather than hours — by splitting the source into chunks encoded simultaneously. Serial, single-machine encoding is what makes transcoding feel slow.
How do I control transcoding costs?
Encode only the ladder rungs your audience actually uses, avoid re-encoding on every metadata change, use just-in-time packaging for long-tail titles, and pick efficient codecs so lower bitrates carry the same quality. Storing unused renditions is a common hidden cost.
Build it with Enveu
Transcode and deliver on Enveu
An efficient pipeline that transcodes to the right ABR ladder and streams adaptively with multi-DRM.