As a mobile application software developer, ensuring that your application correctly handles Dolby Vision content is crucial for delivering high-quality Dolby experience to users.

This article is designed to guide developers through the process of Dolby Vision quality control (QC), leveraging essential tools and procedures.

How can I check if my application correctly processes a Dolby Vision video?

After the development step, it's time to ensure that what has been implemented works correctly. Utilize the tools below to confirm that a Dolby Vision video file processed by your application meets the syntax, metadata, and signaling requirements.

Dolby Vision Professional Verification Toolkit Lite

The Dolby Vision Professional Verification Toolkit Lite provides a set of applications that enables verification of Dolby Vision bitstreams and metadata. You can access the toolkit here.

Dolby Stream Validator

This tool verifies the proper signaling of Dolby Vision in the ISOBMFF format (AKA mp4 container), HTTP Live Streaming (HLS), and MPEG Dynamic Adaptive Streaming over HTTP (MPEG-DASH). To utilize the Dolby Stream Validator, visit this link.

MediaInfo

MediaInfo is a convenient unified display of the most relevant technical and tag data for video and audio files. It is a multiplatform tool available on Windows, macOS, Linux, iOS, and Android. You can download it from the MediaInfo home page.

Why do I need to conduct visual validation?

While checking the syntax and metadata of Dolby Vision content is vital for ensuring technical compatibility, visual QC plays a crucial role in determining the video quality and whether it is recognized as Dolby Vision on compatible playback devices. Visual QC helps identify any artifacts caused by processing of Dolby Vision content. For detailed guidance, refer to this tutorial.