WidgetSpriteVideo Class
Warning
The scope of applications for UnigineScript is limited to implementing materials-related logic (material expressions, scriptable materials, brush materials). Do not use UnigineScript as a language for application logic, please consider C#/C++ instead, as these APIs are the preferred ones. Availability of new Engine features in UnigineScript (beyond its scope of applications) is not guaranteed, as the current level of support assumes only fixing critical issues.
| Inherits from: | WidgetSprite |
This class is used to create a virtual monitor that plays a video file (currently only *.OGV files are supported). It can be synchrozied with playback of the ambient sound or the directional sound source.
You can replace the current video file with another one in run-time by using one of the following methods:
- Delete the WidgetSpriteVideo node from the node hierarchy, delete the instance of the WidgetSpriteVideo and create a new instance of the WidgetSpriteVideo in the same place, but with the different path to the required video file.
Then, add the new instance to the node hierarchy.
NoticeThe following example demonstrates implementation of the described method:There can be a small pause between deletion of the old widget and creation of a new one.Source code (UnigineScript)
#include <core/unigine.h> /* */ Gui gui; WidgetSpriteVideo sprite_video; /* */ void create_video(string file) { // create an instance of the WidgetSpriteVideo to play a given video file sprite_video = new WidgetSpriteVideo(gui,file); // add the created node to the node hierarchy gui.addChild(sprite_video,GUI_ALIGN_OVERLAP); sprite_video.setLoop(1); sprite_video.play(); } /* */ void destroy_video() { // delete the node from the node hierarchy gui.removeChild(sprite_video); // delete the instance of the WidgetSpriteVideo delete sprite_video; sprite_video = NULL; } /* */ int init() { gui = engine.getGui(); create_video("samples/widgets/videos/unigine.ogv"); thread("update_scene"); return 1; } /* */ void update_scene() { while(true) { sleep(1); // delete the video destroy_video(); // create a new video create_video("samples/widgets/videos/winter.ogv"); } } - Create a new instance of the WidgetSpriteVideo on the background and disable (and then delete) the old instance of the WidgetSpriteVideo.
The following samples demonstrate the usage of the WidgetSpriteVideo class:
See Also#
- A set of UnigineScript API samples located in the <UnigineSDK>/data/samples/widgets/ folder:
- video_00
- video_01
WidgetSpriteVideo Class
Members
static WidgetSpriteVideo ( Gui gui, string name = 0, int mode = 1 ) #
Constructor. Creates a new sprite that plays video and adds it to the specified GUI.Arguments
- Gui gui - GUI, to which the new sprite will belong.
- string name - Path to a video file.
- int mode - YUV flag: 1 if conversion to RGB should be performed by the GPU, 0 - if by the CPU.
static WidgetSpriteVideo ( string name = 0, int mode = 1 ) #
Constructor. Creates a new sprite that plays video and adds it to the Engine GUI.Arguments
- string name - Path to a video file.
- int mode - YUV flag: 1 if conversion to RGB should be performed by the GPU, 0 - if by the CPU.
void setAmbientSource ( AmbientSource source ) #
Synchronizes video playback to the ambient sound source playback.Arguments
- AmbientSource source - Ambient sound source according to which video playback will be synchronized.
AmbientSource getAmbientSource ( ) #
Returns the ambient sound source according to which video playback is synchronized.Return value
Ambient sound source.void setLoop ( int loop ) #
Sets a value indicating if the video should be looped.Arguments
- int loop - Positive number to loop the video, 0 to play it only once.
int getLoop ( ) #
Returns a value indicating if the video is looped.Return value
Positive number if the video is looped; otherwise, 0.int isPlaying ( ) #
Returns a value indicating if the video is being played at the moment.Return value
1 if the video is being played; otherwise, 0.void setSoundSource ( SoundSource source ) #
Synchronizes video playback to the sound source playback.Arguments
- SoundSource source - Sound source according to which video playback will be synchronized.
SoundSource getSoundSource ( ) #
Returns the sound source according to which video playback is synchronized.Return value
Sound source.int isStopped ( ) #
Returns a value indicating if the video is stopped at the moment.Return value
1 if the video is stopped; otherwise, 0.void setVideoTime ( float time ) #
Rewinds or fast-forwards the video to a given time.Arguments
- float time - Time in seconds.
float getVideoTime ( ) #
Returns the time of the currently played frame.Return value
Time in seconds.void setYUV ( int yuv ) #
Sets a flag for YUV conversion.Arguments
- int yuv - Mode flag: 1 if conversion to RGB should be performed by the GPU, 0 if it is converted by the CPU.
int getYUV ( ) #
Returns a flag for YUV conversion.Return value
1 if conversion to RGB is performed by the GPU, 0 if it is converted by the CPU.void play ( ) #
Starts playing video.void stop ( ) #
Stops playing video. This function saves the playback position so that playing of the file can be resumed from the same point.Last update:
2021-12-13
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