Zond 265 —
Hevc analyzer

First-to-market tool for visual in-depth analysis of
HEVC/H.265 and AVC/H.264, AV1, EVC, MPEG-2 video bitstreams
  • Frame size histogram and color highlighting of I,P,B frames. Marking of reference frames for the current picture
  • Easy frame-by-frame navigation
  • Comprehensive video supported: HEVC/H.265, AVC/H264, AV1, MPEG-2 in VES, TS, MP4 and EVC in VES
  • Granular visualization of all video stream levels and decoding stages
Ozer, Jan. Video Encoding by the Numbers: Eliminate the Guesswork from your Streaming Video. Publisher: Doceo Publishing, 2016. Print

«...Again, if you're deep into HEVC codec development, or really into learning about how HEVC works, it's an essential tool...»

Joe Tozer, Zetrox Ltd., author "The Broadcast Engineer's Reference Book"

«As a broadcast consultant and trainer specialising in compression and delivery systems Zond 265 is an invaluable tool for analysing, visualising and demonstrating the various structures, data and buffering in an HEVC stream, the graphical interface is clear, intuitive and easy to use; stream error analysis links directly to the standards documents for quick understanding and debugging. Great tool.»

Victor Klykov, Senior Engineer in Software Development, Skype Video DSP team, Stockholm

«My colleagues and me searched for the HEVC analyzer for developing HEVC codec for a long time. We chose the solution with a great care, in particular, compared various tools. For a variety of reasons (visualization, simplicity, etc.), we decided on Zond 265. The test stream was opened, we checked how the theory corresponded to what should be visualized, and as a result, the work on our own codec was completed successfully. Zond got the highest mark from our team!»

Mark Kogan, Senior Professional Video technology and compression Expert

I am an independent Video technology expert which is very well connected and known in the local and international Video technology market. I was looking for the solution that should serve me for longer terms. Zond 265 was one of many solutions that I have evaluated. I do like Zond 265 as it can show VBV, bitrate and video buffer analysis on GUI and get the reports via CLI. Zond analysis tool, provides a suitable and important information for advance + basic level video analysis with relatively great "user friendly" UI. It is also going to be recommended for all my professional colleagues in the video industry.

Maxim Sharabayko, Senior Video Codec Architect

I appreciate Zond 265 for its informative GUI and powerfull command-line features that allow me to export the required data into JSON format and do further processing. Zond 265 notifyes if there are values of the syntax elements that were coded not compliant to the standard, which serves well.

Neil Hollingum, Perpetual Solutions

«I am using your product now not just in courses on H.265 but also on Adaptive Streaming, H.264, MPEG-Dash and CloudTV to demonstrate the differences in encoding efficiency for different Codec implementation within Azure and AWS as well as freestanding products. The fact that now almost any normal file format is supported and several additional Codecs too, it makes life very easy for us to demonstrate key differences in encoding profiles. You clearly have some very bright and knowledgeable people working on the development of your product and I wish you well in marketing it throughout the Industry.»

High Dynamic Range (HDR) Detection and Analysis

Frame-by-frame parsing and interpretation of SEI units into discrete Frame Information.

Hypothetic Reference Decoder (HRD) Buffer Flow

Instant insights into buffer occupancy — available from the interface and through CLI reports.

Comprehensive File Info in a Single Source

including profile, level, chroma subsampling, bit depth, resolution, aspect ratio, bitrate, frame rate, HDR information, compression efficiency, and GOP length statistics.

Bitrate Histogram

Bitrate peak values update every second in the course of consecutive frame reading.

ZOND 265 —
your indispensable tool
  • Visualized bits distribution statistics to facilitate encoding of CU, PU, and TU data
  • HEVC stream validation conformance according to the specification in GUI and CLI
  • Showing hints for HEVC and AVC elements as special quotes
  • Quality estimation by Netflix VMAF, PSNR and MSSIM metrics
  • Fast translucent overlays of encoded file image (CU, PU, TU, QP, Bits, Refldx, PNSR) for Ultra HD files.
  • Report generation from CLI into CSV and JSON for HEVC format
Documentation – Check ZOND online documentation
Supported file formats
Supported codec
Supported languages
ENGLISH   image
Supported platforms
Zond 265 is a pioneering visual tool for in-depth analysis of HEVC/H.265, AVC/H.264, EVC, AV1 and MPEG-2 video bitstreams. A must-have solution for developers of HEVC decoding/encoding/transcoding hardware and software, it adds value by boosting R&D and QA and reducing validation costs.
Zond 265 x64 5.1
Zond 265 5.1
Zond 265 Mac 5.1
Zond 265 Linux x64 5.1
Zond 265 Linux 5.1
Versions comparison
Format support Windows Linux MacOS
Transport Stream HEVC, MPEG2 HEVC HEVC, MPEG2
YUV view - -

See full comparison table here

PC license
*billed annually
*billed monthly
  • HEVC, EVC, AVC, MPEG-2, AV1 support
  • CLI reporting

Zond 265 is licensed by End-User License Agreement Commercial and is intended for the professional use. For this reason, Zond 265 is appropriate to use in the company for its internal needs. Zond 265 can be licensed under OEM rules and restrictions.

Maintenance: The maintenance period is included into the subscription as long as it stays active.
You can cancel your subscription at any time.

Floating License
1 Year subscription

Zond 265 is licensed by End-User License Agreement Commercial and is intended for the professional use. For this reason, Zond 265 is appropriate to use in the company for its internal needs. Zond 265 can be licensed under OEM rules and restrictions.

Maintenance: The maintenance period is included into the subscription as long as it stays active.
You can cancel your subscription at any time.

PC and Floating Licenses

The PC license is valid and locked to a single computer.

The Floating license allows installing Zond on any number of PCs and use it simultaneously with as many users as licenses were purchased.

Update and Upgrade policy

Customers are entitled to minor and major version updates and upgrades free of charge, provided that your maintenance period is active.

You may request to re-host a personal or floating license to a different computer once a year free of charge upon the valid maintenance. If you want to re-host a license within one year after the last re-host, a re-host fee will be charged.

Please refer to the EULAC for more information.

Technical requirements

OS: Windows: 7, 8, 10;
Linux Ubuntu, debian-based: 16.04 (for x86 versions), 20.04 and above (for x64 versions);
Mac OS: 10.10 and above

CPU: Core i7 920 or newer

RAM: 4GB or more

How it looks

Zond 265 GUI
Netflix VMAF. How to measure video quality with VMAF in Zond
How to use a bitrate viewer in Zond 265
No-reference video quality assessment of H.264 video in Zond 265

Our customers


Видеоанализатор Zond 265 ー профессиональный продукт, представляющий мощный набор инструментов, который позволяет пользователю легко определять и идентифицировать визуальные артефакты или проблемы с соответствием битового потока, увидеть элементы кодирования видеоданных. Это программное обеспечение от Solveig Multimedia предназначено для всестороннего анализа видеопотоков. 

На момент появления, главной особенностью видеоанализатора была поддержка анализа видеостандарта HEVC/H.265. Поэтому, изначально ПО было особенно полезным для разработчиков, которые с его помощью смогли создавать программы и кодеки, совместимые с HEVC/H.265. 

Основные возможности видеоанализа с Zond 265

  • Анализатор качества видео дает оценку качества сжатия видео на основе нескольких популярных метрик - Netflix VMAF, PSNR и MSSIM.
  • Можно наблюдать за моментальной наполненностью буфера.
  • Пользователь может получить полную информацию о файле (в том числе о профиле, уровне, цветовой субдискретизации, глубине цвета, формате разрешения видеопотока, соотношении сторон, количестве бит, используемых для передачи/обработки данных в единицу времени, частоте кадров), а также информацию о HDR, эффективности компрессии, статистику длины GOP.
  • Возможно получить график статистического распределения размера кадров и цветовой идентификации различных видов кадров (I, B, P).
  • При видеоанализе доступны сбор и визуальное представление статистики распределения битов, которые были использованы при кодировании CU, PU и TU данных с последующим отображением результатов в виде таблицы.
  • Обнаруживает ошибки потока HEVC и т. п.

Преимущества видеоанализатора Zond 265 

  1. Интуитивно доступный видеоанализ: программа оптимизирована и предоставляет статистику видео в визуально удобном виде и для видеопотока, и для этапов декодирования, что во многом облегчает проверку.
  2. Удобная навигация по кадрам, представленным в виде столбцов, в порядке декодирования или отображения.
  3. Доступна маркировка референсных кадров для текущего изображения.
  4. Простой в использовании интерфейс.
  5. Большое количество поддерживаемых видеоформатов ー элементарные видеопотоки H.265/HEVC, EVC, H.264/AVC и AV1 (AOMedia Video), транспортный поток MPEG-2 для видеопотоков HEVC/H.265 и AVC/H.264, MP4 (MPEG-4 Part 12) с видеопотоками HEVC/H.265, AVC/H.264 и AV1.
  6. Возможность бесплатного скачивания программного обеспечения для видеоанализатора и ознакомления с функционалом в рамках демонстрационной версии.

Zond 265 от Solveig Multimedia ー идеальный инструмент для проверки видеофайлов, анализа видеокодеков, битового потока, этапов декодирования и т.п. С его помощью вы сможете получить полную информацию о видеофайле. Скачивайте, устанавливайте и используйте ー о выборе жалеть не придется!