Castle Game Engine

Class TGLVideo

Description
Hierarchy
Fields
Methods
Properties

Unit

CastleGLImages

Declaration

type TGLVideo = class(TObject)

Description

Video as a sequence of OpenGL textures that can be easily played. Use TGLVideo3D to have a list of normal OpenGL textures, e.g. for rendering video as texture on free 3D objects. Use TGLVideo2D to have a list of GUI textures (TDrawableImage), e.g. for rendering video as simple 2D control.

Hierarchy

Overview

Methods

Public constructor Create(Video: TVideo);
Public function IndexFromTime(const Time: TFloatTime): Integer;
Public function Duration: Single;

Properties

Public property Count: Integer read FCount;
Public property FramesPerSecond: Single read FFramesPerSecond write FFramesPerSecond;
Public property TimeLoop: boolean read FTimeLoop write FTimeLoop;
Public property TimeBackwards: boolean read FTimeBackwards write FTimeBackwards;
Public property Width: Cardinal read FWidth;
Public property Height: Cardinal read FHeight;

Description

Methods

Public constructor Create(Video: TVideo);

Constructor that initializes video from TVideo class.

TVideo passed here must be already Loaded.

Note that this class doesn't descend or keep reference to TVideo instance. The idea is that after creating TGLVideo instance, you can often free original TVideo instance (if you care only about playing the movie). This can conserve memory greatly, as TVideo keeps all frames in the memory, and so is rather memory-costly. (Actually, TGLVideo itself may eat a lot of texture memory, so be careful with large videos anyway.)

Public function IndexFromTime(const Time: TFloatTime): Integer;
 
Public function Duration: Single;

Duration of the movie, in seconds. This is just the number of frames Count divided by FramesPerSecond.

Properties

Public property Count: Integer read FCount;
 
Public property FramesPerSecond: Single read FFramesPerSecond write FFramesPerSecond;

See TVideo.FramesPerSecond.

Public property TimeLoop: boolean read FTimeLoop write FTimeLoop;

See TVideo.TimeLoop.

Public property TimeBackwards: boolean read FTimeBackwards write FTimeBackwards;

See TVideo.TimeBackwards.

Public property Width: Cardinal read FWidth;
 
Public property Height: Cardinal read FHeight;
 
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