Audio/Video QC made easy for cloud workflows

Quasar® is the first file QC software built natively for the cloud architecture. Encompassing all the latest features of Pulsar; industry’s most efficient audio and video quality control software, Quasar video quality checker promises the fastest rate of QC in the cloud.
Quasar not only ensures your content security through IAM cross-account roles, whitelisting and pre-authenticated URL, it is the most advanced cloud video QC software with support for high in-demand features such as HDR, IMF/DCP analysis, Adaptive bitrate QC, Harding PSE etc. Quasar, with its sophisticated QC checks can be used to verify the content before submitting to key VOD services such as Netflix, Amazon Prime Video, iTunes and HBO.
Quasar is the first file QC service built natively for the cloud architecture. Encompassing all the latest features of Pulsar; industry’s most efficient audio and video quality control software, Quasar video quality checker promises the fastest rate of QC in the cloud.
Quasar not only ensures your content security through IAM cross-account roles, whitelisting and pre-authenticated URL, it is the most advanced cloud video QC software with support for advanced features such as HDR, IMF/DCP analysis, Adaptive bitrate QC, Harding PSE etc. Quasar File QC can be used to verify the content before submitting to key VOD services such as Netflix, Amazon Prime Video, iTunes and HBO.

Start by ingesting your media and applying pre-built or custom QC templates, then let Quasar run fast, AI- assisted automated quality checks that catch technical and conformance issues accurately and at scale. From there, review results collaboratively in QCtudio, or export detailed reports in PDF, XML, JSON, or XLSX for your existing tools. Accept, reject, or send content back for correction — all within one integrated, cohesive workflow that efficiently takes your content to a broadcast and platform-ready state.
Quasar® – file based QC on Cloud supports a wide range of QC checks. A subset of these QC checks is displayed here. Click here for the detailed list.

Colour Gamut

Active Region

Cadence

Flash Frames

Photosensitive Epilepsy

Language ID

Audio Loudness

Audio Peaks

Audio Clipping

EAS

Audio Test Tone

Audio Drops
Quasar® Native Cloud File QC service supports a wide range of broadcast, archiving and VOD formats. It also allows a wide range of audio, video checks on media content.
General: Compliance, Factory templates – Netflix, DPP, ARD-ZDF, Loudness (R128, CALM, OP-59, ARIB), iTunes & CableLabs
IMF/DCP: CPL based analysis, Package validation, CPL cross-checks, CPL checks, PKL cross-checks, OPL checks, Assetmap check, IMSC checks, Sidecar checks DNxHD (VC-3), Apple ProRes, JPEG-2000, Canopus HQ/HQX
ABR: Playlist cross checks. Segment cross checks, Profile cross checks, Encrypted Packages
Video Parameters: Codec, Video Format, Color space, Chroma Format, Color Matrix, Scan Mode, Duration, Frame Rate, Resolution, Display/Pixel Aspect Ratio, GOP Length, GOP Type, Field Order, Frame Sizes, Buffer Size, Bitrate (CBR/VBR), Profile/Level, Entropy Coding, Reference Pictures, MBAFF, Timecode Discontinuity, Timecode frame drop, 2020 Color Space
Video Quality: Black Frames, Blockiness, Brightness, Cadence, Chroma Hits, Chroma Line, Clipping, Colored Frames, Color Bars, Color Gamut, Combing, Credit Roll, Camera Dead Pixels, Dead Pixels, Digital Hits, Field Dominance, Flash Frames, Freeze Frames, Luma/Chroma levels, Half/Full lines, Bar Artefacts, Letter/Pillar Box, Active Region, Photosensitive epilepsy (Harding) (SDR and HDR), Media offline, Slate, Postal Stamp
HDR Parameters: HDR Formats, Reporting of HDR10, HDR10+, and Dolby Vision metadata
Static Metadata: Verify (display Color primaries, mastering display luminance, content light level)
Dynamic Metadata: Compliance, Validate HDR10+ metadata (MaxSCL, Average Max RGB, Distribution values, Tone-mapping information, Targeted system display maximum luminance), Validate Dolby Vision metadata (Metadata version, shot must not contain <0,0,0> in level 1 metadata, Detect duplicate dynamic metadata, Crosscheck canvas aspect ratio, Crosscheck Video track information, Crosscheck (Calculated/metadata) Image aspect ratio
Audio: Codec, Sampling Frequency, Quantization Bits, Channels, Bitrate (CBR/VBR), Drops, Silence, Mute, Test Tones, Loudness (R128, CALM, AGCOM, ARIB, Speech Gated), Loudness Range, Dialnorm, Sample Peak (DBFS, PPM), True Peak, Dual Mono, Clipping, EAS tone, Phase Mismatch, Language ID
Container: Conformance, Format, File Size, File Name Validation, No of streams, Incorrect extension MXF: Version, Operational pattern, Timecode presence/track count/mode/start value/source, Index table presence/location/completeness/correctness, Origin parameters, KLV alignment grid/fill elements, Partitions validity/Status/Completeness/Instance count/Index table presence/Essence presence/Max length, Essence wrapping/external check/referencing/partition strategy, Audio track numbers/element size/channel count/configurations, Descriptive metadata presence/scheme, Run-in sequence, Random index pack, Segmentation track, File package count, Index edit rate, Index duration, Audio/Video sample rate, Audio/Video stream type, Audio/Video edit rate, Video line map, System item presence, Block Align, Channel status mode, Fixed channel status data, Stored F2 offset, Display F2 offset, Sampled X/Y offset, Display X/Y offset, Identical GOP indicator, Edit unit byte count, Slice count, Dark metadata, Timecode frame drop, Audio locked/unlocked status, Audio ref level, Index start position, Single index location, Single essence location, Forward index direction, Image start/end offset, Colour siting, Padding bits, Black ref level, White ref level, Colour range, Constant B picture flag, Single sequence, Low delay, AS-02 Support Transport Streams: SCTE35, Program count, PCR Jitter, Packet Length, PID Usage, PIDs, PID Bitrate, Packet Intervals, PAT checks, PMT checks, Stream checks, PES checks, Language Metadata Verification
QuickTime: Checks and correction for PASP, FIEL, GAMA, CLAP, COLR. Channel Configuration, Track properties, Movie properties, Language Metadata Verification, Check disabled tracks, Check multiple codec entries, Check Timecode properties
Cross Checks:
Meta-data: Closed Captions (608/708) presence/conformance/format/location, AFD, Bar, V-Chip, Teletext
Reference-Based Analysis: Ref-Q, SSIM, PSNR


Quasar Native Cloud File QC service supports QC of content stored on AWS S3, Azure Blob storage, BackBlaze storage and Google Cloud storage.
AWS S3
Azure Blob
Google Cloud Storage
Backblaze Storage
Quasar® is available two deployment models – SaaS & Private. SaaS is the most popular edition wherein the entire infrastructure is managed by Venera. Private edition is available for users who strictly need to run their workflow within their own VPC. Variety of plans are available for different content volume and budgets in both the editions. Contact us to discuss the most suitable plan for your workflow.
Subscription
Monthly & Annual plans
Adhoc Plan
Available
Infrastructure cost
Venera responsibility
Infrastructure management
Venera responsibility
Content Storage location
User owned
Subscription
Monthly & Annual plans
Adhoc Plan
Not Available
Infrastructure cost
User responsibility
Infrastructure management
User responsibility
Content Storage location
User owned
Subscription
Monthly & Annual plans
Adhoc Plan
Available
Infrastructure cost
Venera responsibility
Infrastructure management
Venera responsibility
Content Storage location
User owned
Subscription
Monthly & Annual plans
Adhoc Plan
Not Available
Infrastructure cost
User responsibility
Infrastructure management
User responsibility
Content Storage location
User owned
Quasar® Plans
Venera serves some of the finest companies of the world in helping improve their content QC operations. Here’s a snapshot of the brands who trust us.















We actively integrate with the prominent solutions in digital media industry to provide an integrated offering for your workflows that are easy & efficient to use.




We provide ready-to-use templates of technical specifications required by these prominent content platforms, which can be used by you for the specific channel you want to display your content.








Quasar® is a cloud-native file-based audio/video quality control (QC) solution. It includes all the QC features of Pulsar, our on-premise QC solution. If your workflow is in the cloud, your content resides on cloud storage, and you want to QC your content directly without downloading it, then Quasar is the right solution for you.
Quasar® service is available as a fully managed SaaS service as well as a private edition offering that you can deploy in your virtual private cloud (VPC).
You don’t need to worry and engage your team for managing the cloud infrastructure and can focus only on performing QC checks.
You can immediately start using Quasar®. Either manually or via REST API.
You will get committed SLAs for service upkeep.
No one has access to the user’s content and the processing VMs.
Quasar® audio/video quality control solution does not store any user credentials in the Quasar® system.
We use AES-128 encryption for the temporarily downloaded content on processing VMs. Content is deleted from the processing VMs after the QC process is completed.
You may post the file to Quasar® for QC without giving any security credentials using IAM cross-roles or a Pre-authenticated URL.
Quasar® is AWS FTR certified and adheres to the strict security & reliability requirements that AWS require as part of its FTR program.
Venera is a SOC2 certified company and has strict security controls.
Quasar® is an elastic system that can be dynamically auto-scaled to any size without needing users’ intervention, allowing hundreds of files to be processed simultaneously.
Quasar® has been tested with the ability to run up to 1000 concurrent jobs. That is the most scalable cloud-native QC system.
Yes, you can integrate Quasar® QC software with your workflow using REST API.
AWS and Azure for computing. Quasar® can read content from AWS S3, Azure Blob storage, Google Cloud storage and BackBlaze storage.
Yes, we have integrated the Harding FPA engine within Quasar®. This allows users to perform Photosensitive Epilepsy validation using the industry de-facto standard Harding PSE. Quasar® is the only solution that has integrated Harding PSE for both HDR and SDR content.
No. We automatically create the AWS VMs for QC in the same region as the content. This allows the content QC without any data transfer charges to you.
Our experts and thought leaders share their knowledge of technologies pertaining to QC solutions for digital media industry in these scholarly articles.

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What is Cadence and why its validation is important?
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Understanding video cadence (or pull-down) in the broadcast industry can be challenging. In this blog article, we will explain what Cadence (or Pull-down) is along with its practical application, and different pull-down patterns.
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