01
Deinterlaced inputs
All input channels must be deinterlaced for accurate, predictable capacity calculation across the transcoder.
03 — Transcoder
Plum iTV
Transcoder.
GPU-based transcoder, assisted by CPU — fully flexible, so providers choose their own capacity-to-quality ratio. Adjust resolution, aspect ratio, bitrate, codecs, streaming protocols, and interlacing to fit any workflow.
H.264 / AVC
H.265 / HEVC
AAC Audio
4K Ready
GPU-Accelerated
Next generation solution for InteractiveTV
Technical information,
that scales.
The most common container for live streaming is MPEG-2 TS (MPEG-TS). Standard supported formats are H.264 AVC and H.265 HEVC for video, and AAC for audio. Resolutions cover several SD formats (including PAL), HD-ready 720p, Full HD 1080p, and emerging Ultra HD 4K.
Section 01
Protocols & stability.
The most common streaming protocols used by Plum iTV Transcoder are UDP, RTP, and RTMP — covering the full spectrum of broadcast and contribution workflows.
For a single Plum iTV Transcoder to run stably, CPU load should stay at 60–70% and GPU utilisation at around 90% — those thresholds are the only practical limits on a single transcoder instance. Within them, you can push the hardware to its full design capacity without sacrificing reliability.
- UDP, RTP, and RTMP support
- Stable CPU load threshold: 60–70%
- Optimal GPU utilisation: ~90%
- Hybrid GPU + CPU processing
Section 02
Capacity & redundancy.
When the standard capacity conditions are not fully met, transcoder capacity can decrease compared to the estimated baseline. As a rule of thumb, one HD-ready channel in three profiles consumes the resources of three SD channels in three profiles. One Full HD channel in three profiles consumes the resources of five SD channels in three profiles.
Plum iTV Transcoder supports redundancy through a Cold Spare model. Files are backed up from the regular Transcoder, and if the primary unit fails, the spare can be up and running within minutes — provided adequate human resources on the provider's side are available to execute the switchover.
- 1 HD-ready ≈ 3 SD channels in capacity
- 1 Full HD ≈ 5 SD channels in capacity
- Cold Spare redundancy support
- Fast failover within minutes
Calculation Conditions
Capacity is calculated
under these conditions.
02
Provider-defined profiles
Profiles follow the provider's demand exclusively — resolutions, bitrates, and the number of profiles per channel.
03
Matching resolutions
Input and output resolutions match — HD input produces HD output, SD input produces SD output. No upscaling assumed.
04
Standard codecs
Input codecs are MPEG-2 or MPEG-4 — the standard formats expected for IPTV transcoding workflows.
Get Started
See Plum Transcoder
in action.
Book a live walkthrough with our team, or download the full technical PDF.