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Video Processing

vxTranscoder

High-density software transcoder for Live and VOD workflows — hardware-agnostic, energy-efficient, and fully integrated across the StreamVX ecosystem.

Live TranscodingVOD ProcessingGreen & On-PremAI-Driven Quality Feedback LoopDAI & Ad Creative Normalisation
Award
≥96
VMAF score — guaranteed on every output profile
closed-loop with vxQuality
5
Video codecs in one engine
MPEG-2 → AV1
−20%
Bandwidth per channel via the AI quality loop
fewer bits, same quality
4+
Accelerator platforms supported
Intel Quick Sync · GPU · ASIC · Apple M-series

One Transcoder. Every Workflow.

Two Variants

Two deployment modes.

Same microservices core and codec stack, deployed independently to match the workload — switch to compare Live and VOD.

Live soccer match in a professional stadium
Live sports streaming
Hands holding popcorn while watching on-demand video
VOD library browsing
vxTranscoder Live

Linear & OTT live streams

Continuously-running engine for linear broadcast and OTT live streams.

  • UDP / SRT / RTP / HLS / DASH ingest
  • Multi-bitrate TS output with SPTS & MPTS
  • MPEG-2 / H.264 / HEVC / AV1 output
  • Frame-accurate ABR ladder sync
  • SCTE-35 passthrough (Advanced License)
  • vxDAI Factory integration for ad insertion
vxTranscoder VOD

File-based asset processing

On-demand engine for file-based asset transcoding, ad creative preparation, and VOD library processing.

  • MP4, TS, MKV, AVI, MOV and more
  • Watch Folder / FTP ingest
  • HLS, DASH, CMAF output packaging
  • WebVTT, TTML, SRT subtitle output
  • Thumbnail generation per profile
  • vxVideo Wizard playlist integration
Use Cases

Built for real broadcast challenges.

Four workflows where vxTranscoder eliminates cost, complexity, and vendor lock-in.

Legacy Hardware Migration

Legacy Hardware Migration

Replace end-of-life hardware encoders — including AWS Elemental Server reaching EOS — with a software-defined solution running on existing rack servers. Preserve existing workflows, gain codec flexibility, and eliminate maintenance contracts on proprietary appliances.Drop-in replacement · no workflow changes

See your workflow above? We'll map vxTranscoder to your exact setup.

Book a technical demo
Technical Specifications

Full codec & protocol coverage.

Complete input/output matrix across video, audio, subtitles, and transport formats.

Input

Video CodecsAV1, HEVC (H.265), H.264, H.263, MPEG-2
Stream ProtocolsUDP, SRT, RTP, HLS, DASH
File FormatsMP4, TS, MKV, AVI, MOV and more
Audio CodecsMPEG-1 Layer II, AAC-LC, Dolby Digital (AC-3)
SubtitlesTTML, WebVTT, DVB SUB, DVB TXT

Output

Video CodecsAV1, HEVC (H.265), H.264, H.263, MPEG-2
Stream ProtocolsUDP, SRT, RTP, HLS, DASH
Transport StreamsMulti-bitrate TS, SPTS, MPTS, MPEG-2 TS
Audio CodecsAAC, AC-3
SubtitlesWebVTT, TTML, SRT, DVB · Teletext pass-through

Processing & Encoding

Audio TracksUp to 8 tracks / channel layouts
HDRHLG10, HDR10
Frame RateBoost for unified smoothness
Image OverlaysLogo / bug insertion
SCTE-35Pass-through (Advanced License)
LoudnessNormalization
Bitrate ModesCBR / VBR
Thumbnail Gen.Per profile, per stream

Hardware Acceleration

IntelQuickSync Video
GPUNVIDIA / AMD (CUDA / OpenCL)
ASICPurpose-built encode chips (e.g. NETINT Quadra)
CPUx86-64 software encode
AppleM-series (M1 / M2 / M3 / M4 / M5)
Capabilities

Full feature coverage.

vxTranscoder exposes a comprehensive set of transcoding controls. The exact feature set per deployment is agreed individually — contact us to tailor a configuration to your workflow.

01 · Core

Core Transcoding

Channel CreationCodec Selection (MPEG-2, H.264, H.265, AV1)Resolution & Bitrate ConfigurationTranscoding ProfilesGOP Size ConfigurationScan Type (Progressive / Interlaced)Audio Codec SelectionAudio Channels & Sampling RateRestart on PMT Change
vxOS — channels list
02 · Advanced

Advanced Stream Controls

Multiple Decoder / Encoder SelectionATSC / DVB Data Table SelectionBitrate Mode Control (CBR / VBR)PCR Interval ConfigurationAudio Delay AdjustmentMultiple Output Streams per ProfileDouble Rate DeinterlacingFix Input Continuity ErrorsLoudness Normalization
vxOS — add new channel
03 · Encoding

Video Encoding Controls

Aspect Ratio ControlFPS ConfigurationLevel Selection (Manual / Auto)Encoding Presets (Speed / Quality)Tune ProfilesCompression Method (CABAC / CAVLC)B-Frames ConfigurationOpen GOP / IDR Interval
vxOS — video profiles
04 · Subtitles

Subtitles & Broadcast Metadata

Subtitle ProfilesClosed Captions (WebVTT + Offset Control)SCTE-35 PassthroughDVB SUB / DVB TXT InputTTML / SRT OutputTeletext Pass-through
vxOS — templates
Deployment

Green by design. Three ways to deploy.

vxTranscoder runs on your existing infrastructure — no proprietary hardware required. All three paths deliver the same broadcast-grade performance while minimising energy consumption.

Commodity Servers (COTS)

Off-the-shelf x86-64 servers with Intel QuickSync, NVIDIA / AMD GPU, or ASIC acceleration. No new appliances, no refresh cycles. Purchase or reuse your existing rack hardware.

vxFlex Appliance

Integrated as a core vxApp within the vxFlex 1RU modular chassis. Combines transcoding, packaging, and reception in a single rack unit. Ready-to-rack, software-defined from day one.

Customer's Existing Hardware

Deploy on GPUs, FPGAs, ASICs, Intel QuickSync, or Apple M-series accelerators already in the rack. No fork-lift upgrade — your current hardware, StreamVX software.

Architecture

Central node in the StreamVX signal chain.

vxTranscoder connects upstream signal acquisition with downstream packaging, DRM protection, ad insertion, and quality analytics.

UDP / SRT / DVB
ATSC / Files
Source
vxTranscoder
Live / VOD
Format Conversion
vxOTT Gateway
Packaging
vxDRM Gateway
Protection
CDN / End User
Delivery
Core Pipeline

vxOTT Gateway

Live & VOD output consumed for HLS/DASH/CMAF packaging, multi-DRM encryption, and OTT origin serving.

Core Pipeline

vxDRM Gateway

Content flows through for Widevine, FairPlay, and PlayReady encryption with CPIX API key exchange.

Quality Feedback Loop

vxQuality System

Bi-directional integration. Continuously measures VMAF, PSNR, SSIM and feeds recommendations back to auto-optimise encoding profiles.

DAI & Ad Insertion

vxDAI Factory

SCTE-35 markers from vxTranscoder Live consumed for server-side ad insertion into linear and OTT streams.

DAI & Ad Insertion

vxManifest Manipulator

VOD pre-transcodes ad creatives to precisely match codec, resolution, bitrate, and audio profile of Live stream.

Statistical Muxing

vxStatMux

vxTranscoder Live feeds the first statistical multiplexer driven by real-time VMAF prediction — fewer wasted bits, greener broadcasting at scale.

Inside the product

Run every channel from one console.

vxTranscoder is operated through the vxOS web console — create channels, build encoding templates, and reuse video profiles without ever touching a CLI.

vxOS console — vxTranscoder channels list

Ready to see it in your stack?

Let's talk

Our engineering team will map vxTranscoder to your specific workflow — no sales deck, no generic pitch.