QtAV icon

QtAV

QtAV is a multimedia framework for Qt that provides an easy API to play and manipulate video and audio. It supports hardware decoding and has a plugin system for codecs. Useful if you need multimedia capabilities for a Qt-based app.

What is QtAV?

QtAV is an open source multimedia framework built for the Qt framework. It provides a simple API and abstraction layer for developers to easily integrate audio and video playback along with basic editing and manipulation capabilities into Qt applications.

Key features of QtAV include:

  • Hardware accelerated video decoding through FFmpeg and platform specific APIs like DirectX, CUDA etc.
  • Audio playback and volume control
  • Subtitle support with automatic loading from media files
  • Video widget with customization options for aspect ratio, deinterlacing etc.
  • Support for common formats like AVI, MKV, MP4, FLV etc.
  • Frame-by-frame stepping and screenshot capturing
  • Desktop capturing capabilities
  • Effect filters for video like blur, color adjustment etc.
  • Plugin system for adding new codecs without recompilation

QtAV makes it easy to build cross-platform media features into Qt-based C++ applications for desktops, mobile devices etc. It encapsulates low-level multimedia processing into an easy to use API. Useful for developers looking to add video/audio playback or basic editing features without delving into backend codec details.

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