Version 1.4.0

• Major refactor of frame render filters.
• New VideoFrameRenderFilter, which supports parametrized creation of custom frame render filters by passing in custom vertex and fragment shaders in the constructor, along with names and values of uniforms used in those shaders. Current vertex and fragment shaders are available as a default.
• 40 new pixel effect (brightness, contrast, hue, saturation, exposure, color adjustment, blur, etc.) filters, ported from Mp4Composer-android and android-gpuimage projects.
• Geometric transformation used for positioning video frame and bitmap overlays is now a separate Transform class, instead of several individual method parameters.
• New utility which queries for highest supported codec profile.
• Bugfixes