Video(virtools BB模块汉语翻译及用法详解)

Video

Dx8 Video Dependency

Version 1.00 - Virtools Categorized in Video/Dependency

Description

Apply to a BEOBJECT.

Add this BB to your composition to download the DirectX 8 Video Engine in the Virtools 3D Life Player.

Technical Information

By default, no video engine is downloaded by the Virtools Web player. Add this BB to your composition to ensure the Dx8 Video Engine is downloaded by the users' Virtools Web Player. If DirectX 8 is installed, video playback will be available for your composition with the Dx8 Video Engine.

Warning

The Dx8 video engine is more compact, while video playback with a Dx9 rasterizer will be better optimised with the Dx9 Video Engine. While the Dx8 Video Dependency BB will work under a Dx9 (rasterizer). The inverse - a DX8 (rasterizer) with the Dx9 video Engine) - is incompatible, so if you use the Dx9 Video Dependency BB, you should also use the Dx8 Video Dependency.

Note: You may choose only to include the Dx8 Video Dependency BB to decrease the Web Player

installation time.

视频

DX8 视频附属

在Video/Dependency中将其分类

描述

适用于交互对象

添加这个BB到你的项目中，就可以在Virtools 3D播放器中下载DX8视频引擎。

技术信息

以默认值，没有视频引擎被下载到Virtools网络播放器中。添加这个BB 到你的项目中并确保DX8视频引擎在用户的Virtools网络播放器中。如果DX8被要求，视频的录制功能将使用DX8 视频引擎被用在你的项目中

警告

DX8视频引擎更加结实，当Dx8 Video Dependency BB在DX9下工作时，在一个DX9的光栅下录制视频时将更好的在DX9视频引擎下。所以，如果你使用Dx9 Video Dependency BB,你应该也使用DX8视频附属

提示：你可以只选择包含DX8 Video Dependency BB来减小网络播放器的使用时间。

Dx9 Video Dependency

Version 1.00 - Virtools Categorized in Video/Dependency

Description

Apply to a BEOBJECT.

Add this BB to your composition to download the DirectX 9 Video Engine in the Virtools 3D Life Player.

Technical Information

By default, no video engine is downloaded by the Virtools Web player. Add this BB to your composition to ensure the Dx9 Video Engine is downloaded by the users' Virtools 3D Life Player. If DirectX 9 (rasterizer) is installed, video playback will be available for your composition with the Dx9 Video Engine.

Warning

Video playback with a Dx9 rasterizer will be better optimised with the Dx9 Video Engine; however, the Dx8 Video Dependency BB will work under a Dx9 (rasterizer). The inverse - a DX8 (rasterizer) with the Dx9 video Engine) - is incompatible, so if you use the Dx9 Video Dependency BB, you should also use the Dx8 Video Dependency BB .

Note: You may choose only to include the Dx8 Video Dependency BB to decrease the Web Player installation time. DX9 视频附属

在Video/Dependency中将其分类

描述

适用于交互对象

添加这个BB到你的项目中，就可以在Virtools 3D播放器中下载DX9视频引擎。

技术信息

以默认值，没有视频引擎被下载到Virtools网络播放器中。添加这个BB 到你的项目中并确保DX9视频引擎在用户的Virtools网络播放器中。如果DX9被要求，视频的录制功能将使用DX9 视频引擎被用在你的项目中

警告

DX9视频引擎更加结实，当Dx8 Video Dependency BB在DX9下工作时，在一个DX9的光栅下录制视频时将更好的在DX9视频引擎下。所以，如果你使用Dx9 Video Dependency BB,你应该也使用DX8视频附属

提示：你可以只选择包含DX8 Video Dependency BB来减小网络播放器的使用时间。

Get Video Input Formats

Version 1.00 - Virtools Categorized in Video/Basic

Description

Apply to a VIDEO.

Get the available input format descriptions for the given capture ID.

AllVideoBBs.cmo

Technical Information

In: triggers the process.

Loop In: triggers the next step in the process loop.

Out: is activated when the process is completed. Loop Out: is activated when the process need to loop.

Capture ID: the BB will retrieve the available input format for the camera with this ID. Count: total number of formats available. ID: identifier for this format.

Name: video type used by this format (RGB, YUV, FOURCC...).

Size: image with and height used by this format.

Frequency: minimum and maximum frequency that is advised for this format.

Remarks

Only devices with a WDM driver (most of todays cameras provide such a driver) will return a list of available formats. For olders drivers, the BB will directly return with a format count of -1 and you won't be able to change the input format.

To modify the format used by a live video, use the Video Input Control BB.设置视频输入格式

在Video/Basic中将其分类

描述

适用于视频

获取一个可用的输入格式来描述给定的记录的ID

AllVideoBBs.cmo

技术信息

In：触发该进程

Loop In：在进程循环中触发下一步

Out：当进程完成时则被激活

Loop Out：当进程需要循环时则被激活

Capture ID：这个BB将为这个ID的摄影机重新取回可用的输入格式

Count：可用的格式的总数

ID：这个格式的识别号

Name：使用这个格式的视频的类型（RGB，YUV，FOURCC…）

Size：使用这个格式里的图片的尺寸Frequency：对这个格式建议的最小值和最大值

评论

只有WDM驱动的设备（在现有的摄影机里都有提供这样的一个驱动）将返回一个可用格式的清单。对于老一点的驱动，这个BB将直接返回一个格式计算为-1，并且你不能改变他的输入格式

来修改这个格式使用一个活的视频，使用Video Input Control BB.

Video Input Control

Version 1.00 - Virtools Categorized in Video/Controls

Description

Apply to a VIDEO.

Modify a video's input controls (runtime parameters). AllVideoBBs.cmo

Technical Information

In: activates the process.

Out: is activated if In has finished.

Error: is activated if the building block encounters an error, Error pOut giving a description of what went wrong.

Format ID: format identifier to use for the live video input (see Remarks). Set to -1 to use the default format.

Frequency : frequency to use for the live video input. Set to -1 to use the default frequency. Error: Output string that describes the error. 视频输入控制

在Video/Controls中将其分类

描述

适用于视频

修改一个视频的输入控制（运行时间参数）

AllVideoBBs.cmo

技术信息

In：激活该进程

Out：如果In已经结束，则被激活

Error：如果BB遇到一个错误则被激活，错误的pOut给一个对错误的描述

Format ID：对使用的视频输入进行识别（看评论）。设置-1来使用默认的格式

Frequency：多次使用现有的视频输入。设置-1到使用的默认附属中

Error：描述错误的输出字符串

Remarks

?Those controls only apply to a live video.

?To get a list of the available Format ID and Frequency, use the

Get Video Input Formats BB.

?To change the format, there are the following restriction :

o When the video is

unloaded, it is always

possible to set any of

the supported format.

o When the video is loaded,

it has to be stopped to

set a new input format.

And switching from one

format to another is not

always possible (this

depends on your camera

drivers). For instance,

it is often impossible to

switch from a RGB format

to a YUV format while the

video is loaded. You

should therefore test the

capabilities of your

camera if you need to

forbid those impossible

format changes or first

unload your video.

?To change the frequency, the video can be either unloaded or

loaded and stopped.

?To know what format is currently used by your live video, you can

use the GetVideoInfo VSL method

on your video object. 评论

这些控制只适用于一个活着的视频

来获取一个可用的ID格式和附属的清单，使用一个Get Video Input Formats BB.

来改变这个格式，那有一个紧跟着的约束：

当视频没有被载入，他总是可能被设置

任何支持的格式

大部分视频被载入，他被设置了一个新

的输入格式后停止。并且从一个格式转

换到另一个格式不总是可能的（这取决

于你的摄影机的驱动）。以这个例子，

当视频被载入时，他总是把一个RGB格

式转化成为一个YUV格式。如果你需要

禁止这些不可能的格式，你应该测试你

的摄影机的能力.

为了改变附属，视频能够两者都被卸下或是载入都将被停止

为了知道现有的格式，你能使用GetVideoInfo VSL办法在你的视频对象上

Video Basic Control

Version 1.00 - Virtools Categorized in Video/Controls

Description

Apply to a 3DENTITY.

Modify a video's global controls (runtime options).

AllVideoBBs.cmo

Technical Information

In: activates the process.

Out: is activated if In has finished. Error: is activated if the building block encounters an error, Error pOut giving a description of what went wrong. Loop: Should the Video loop (between the specified start time and stop time)? Start Time : The point in the video where the video should begin.

Stop time : The point in the video where the video should end. Leaving it at 0mn 0s 0ms means it will play until the end. Speed: Speed of the video Playback. 1 = normal speed.

Gain: The volume of the audio between 0 (no volume) and 1 (max volume).

Pan: Balance between the Left (-1) and right channel (1).

Error: Output string that describes the error.

Controls : Each checkbox allows you to remove the corresponding pIn above. 视频基本控制

在Video/Controls中将其分类

描述

适用于3D实体

修改一个视频的全局控制（运行时间选项）

AllVideoBBs.cmo

技术信息

In：激活该进程

Out：如果In被完成则被激活

Error：如果BB遭遇一个错误，错误的pOut 给了错误一个描述。

Loop：视频应该是否被循环（在指定的起始时间和结束时间之间）

Start Time：视频开始时的时间点

Stop time：视频结束时的时间点.离开时在0分0秒0毫秒意味着他将播放直至结束Speed：视频录制的速度。1=一个平常的速度

Gain：在0（无声音）和1（最大声音）之间

Pan：在左（-1）和右边的通道（1）之间的平衡

Error：描述错误的输出字符

Controls：每个单选框允许你移动与pIn符合的

Remarks

These features are highly depends on the compression format of the video. More precisely:

Setting the Start Time and/or the Stop Time will fail if the video does not have seeking capabilities. You may use the Support Seeking parameter operation while the video is loaded to get this information. In particular, it is not supported by live videos.

Setting the Speed will fail if the video does not support speed change and setting a negative speed will fail if it does not support negative speed. You may use the Support Speed Change and Support Negative Speed parameter operations while the video is loaded to get those information. In particular, it is not supported by live videos.

Setting the Speed may also fail for certain values as compression formats support various speed ranges. Most compression formats support a speed factor between 0 and 2 (DivX, Indeo,...); but some will support none (wmv,...) ; others support higher speed rates. If getting this information is not possible, you must test it with your video to validate your speed value.

Setting the Gain and the Balance will fail if the video has no sound or if the Enable Audio properties is deactivated. You may use the Is Audio Enabled and/or Has Audio parameter operations while the video is loaded to get those information.

Also note that seeking and changing the speed of a video is not always smooth. This depends on the compression algorithm and the key rate used for the video compression. If you need a very smooth speed changing and/or seek, you will have to compress your video with many key frames to facilitate the video decompression at any time position. 评论

这些特点是取决于视频的压缩格式。更多的细节：

设置开始时间/或是停止时间将失败如果视频没有找到他的能力。当视频载入并获得这个信息时，你可以使用Support Seeking参数进行运算。特别是，他不支持生动的视频

如果视频不支持速度的改变，并设置了一个否定的速度，设置速度会将会失败。你可以使用Support Speed Change和Support Negative Speed参数进行运算。当视频被载入并获得这些信息时。特别的，他不支持生动的视频

设置一个速度也将失败。不部分压缩的格式支持一个速度因素在0和2之间（X层，Indeo. . .）但是一些将支持（wmv. . .）；另外的支持高速率。如果获得这个信息没有可能，你必须测试他同你的视频到可用的你的速度值

设置赢利和平衡将会失败，如果视频没有声音或者是如果EnAble Audio被撤消。当视频被载入并获得这些信息时，你可以使用Audio Enabled以及或是Has Audio参数进行运算

也要注意到寻找并改变这些视频的速度不是很顺

利的。这取决于压缩程度和主要的比例。如果你需要一个非常快的速度来改变寻找，你就要压缩你的视频通过一些帧使视频的减压在任何时间

Video Basic Properties

Version 1.00 - Virtools

Categorized in Video/Properties Description

Apply to a VIDEO.

Modify a video's global properties (static options).

AllVideoBBs.cmo

Technical Information

In: activates the process.

Out: is activated if In has finished. Error: is activated if the building block encounters an error, Error pOut giving a description of what went wrong. Input Type : This defines the video input type: Read from a file, live video feed or streamed content.

Output Type: This defines where to display the video: on a texture or on the screen as overlay video.

Enable Audio : If checked, the audio is played for videos with soundtrack or live videos.

Error: Output string that describes the error.

Input Type : This removes the pIn for Input Type.

Output Type : This removes the pIn for Output Type.

Enable Audio : This removes the pIn for Enable Audio.

Remarks

Properties can not be changed while the video is loaded; otherwise, the BB wil fail. Make sure to unload your video before activating this BB. 视频基本属性

在Video/Properties中将其分类

描述

适用于视频

修改一个视频的全局属性（静态选项）

AllVideoBBs.cmo

技术信息

In：激活该进程

Out：如果In完成则被激活

Error：如果BB遇到一个错误，则被激活，错误的pOut给了一个对错误的描述

Input Type：这个视频输入接口被下定义Type：从文件里读取，依靠于流动的内容

Output Type：输出口的类型

Display the video：在一个纹理或是在一个屏幕上

Enable Audio：如果被钩选，音频为视频被播放

Error：描述错误的输出字符串

Input Type：这个移除了输入类型的pIn接口

Output Type：这个移除了输出类型的pIn 接口

Enable Audio：这个移除了音频能力的pIn

评论

当视频被载入时，属性不能够被改变；另外，这个BB将失败。确保在激活这个BB之前卸下你的视频

Video Capture

Version 1.00 - Virtools Categorized in Video/Basic

Description

Apply to a VIDEO.

Capture the current image of a video.

AllVideoBBs.cmo

Technical Information

In: activates the process.

Out: is activated if the building block is activated.

Error: is activated if the building block encounters an error, Error pOut giving a description of what went wrong.

Target Texture : The target texture where the video appears.

Error: Output string that describes the error. 视频截取

在Video/Basic中将其分类

描述

适用于一段视频

截取视频中的现有图片

AllVideoBBs.cmo

技术信息

In：激活该进程

Out：当BB被激活时则被激活

Error：如果BB发生了一个错误则被激活，错误pOut对错误进行了描述

Target Texture：视频出现的目标纹理

Error：描述错误的输出字符串

Video Input Properties

Version 1.00 - Virtools Categorized in Video/Properties

Description

Apply to a VIDEO.

Modify a video's input properties (static options).

AllVideoBBs.cmo

Technical Information

In: activates the process.

Out: is activated if In has finished.

Error: is activated if the building block encounters an error, Error pOut giving a description of what went wrong.

IMPORTANT: pIns will be determined by the Input Type settings!

Input Type: This defines the video input in the CMO: Read from a file, live video feed or streamed content. Each Type has a specific list of options to be defined. 视频输入属性

在Video/Properties中将其分类

描述

适用于视频

修改一个视频的输入属性（静态选项）

AllVideoBBs.cmo

技术信息

In：激活该进程

Out：当In被完成时则被激活

Error：如果BB有一个错误，则被激活，错误pOut对错误进行了描述

IMPORTANT：pIns将被输入类型设置被决定

Input Type：在一个CMO文件中给视频输入接口下定义：从一个文件中读取现有的视频或是一个数据流。每种类型有一个指定的定义的选项清单

?Input Type: File: The video is read from a file on the

local or network hard drive.

Target Video : The name of

the video object.

File: Path to the video file to be read. Paths can be

either absolute,

relative or a filename. In

this last case, the video

directory must be added to

the Path Manager in the

Bitmap Path Category.

?Input Type: Live: The video is being fed by a live video source (camera, web cam,

etc.)

Target Video : The name of

the video object.

VideoID: The video source to use. The camera must be

plugged in and operational.

A pulldown list - listing

available sources - appears when selecting the right

hand button. When the

composition is saved and

reloaded, the camera with

the same name is selected; if it is not found, the first

available one is used.

AudioID: The audio source to use. The microphone must be plugged in and operational.

A pulldown list - listing

available sources - appears when selecting the right

hand button. When the

composition is saved and

reloaded, the microphone

with the same name is

selected; if it is not found, the first available one is

used.

?输入类型：文件：从一个文件中读取视频在本地或者一个网

络驱动

?Target Video：视频对象的名称

?File：被读取的视频文件的路径。路径可能为绝对路径，相

对路径或是一个文件名。在最

后的事件中，视频指南必须被

添加到路径管理器中在一个位

图路径中。

Input Type：Live：视频被放在一个活的视频资源中（摄影机，网络等等）

Target Video：视频对象的名称

VideoID：被使用的视频资源。摄影机必须被接通电源并且被运算

一个下拉菜单-可用的资源列表-当选择右边手的按钮时就出现。当项目被保存后再载入时，有相同名字的摄影机被选择；如果没有被找到，第一个可用被使用

AudioID：被使用的音频资源。麦克风必须插上电源并操作。一个下拉菜单-可见资源列表–当选择右边手的按钮时就出现。当项目被保存后再载入时，有相同名字的摄影机被选择；如果没有被找到，第一个可用被使用

?Input Type: Stream: The

video is being streamed from

a URL address.

Target Video : The name of

the video object.

Url:The absolute URL of the

video that is to be streamed.

Path must be formatted as

"Protocol://...", for

instance, it can be

"file://...", "..."

or "mms://...".

Error: Output string that describes the error.

Live Properties / VideoID: This removes the pIn for VideoID.

Remarks

Properties can not be changed while the video is loaded. Otherwise, the BB will fail, so make sure to unload your video before activating this BB.

Video and audio source lists are populated at the application start up. These sources must therefore be plugged in before the start of the application.

VERY IMPORTANT: By default, no video engine is downloaded by the Virtools Web player. You must add the Dx8 Video Dependency BB (and optionally the Dx9 Video Dependency BB) to your composition to ensure the Dx8 (or Dx9) Video Engine is downloaded by the users' Virtools 3D Life Player. If DirectX 8 or 9 is installed, video playback will be available for your composition with the Dx8 (or Dx9) Video Engine. Input Type：Stream：视频被从一个URL地址上下载

Target Video：视频对象的名称?Url：被分组的视频的绝对路

径。路径必须被设置为以下格

式："Protocol://...", 举个

例子, 他能够为：

"file://...", "..."

or "mms://...".

Error：输出字符穿描述了一个错误

Live Properties/VideoID：这个移动了VideoID的pIn

评论

当视频被载入时属性不能够发生变化。另外，BB会失败，请确保在激活该BB之前卸下你的视频

视频和音频资源清单都在应用程序开始中。这些资源必须在应用程序开始之前被接通电源。

很重要：通过默认值，没有视频引擎通过Virtools 网络播放器被下载。你必须添加一个Dx8 Video Dependency BB（或者是Dx9 Video Dependency BB)到你的项目中，确保DX8（或是DX9）视频引擎被下载通过用户的Virtools 3D播放器。如果DX8或DX9被安装，视频录制将对于你的项目是可用的

Video Loader

Version 1.00 - Virtools

Categorized in Video/Basic Description

Apply to a VIDEO.

Expose Loading Control on a video. AllVideoBBs.cmo

Technical Information

Load: activates the process.

Unload: activates the process.

Loaded: is activated when Load has finished. Unloaded: is activated when Unload has finished.

Error: is activated if the building block encounters an error, Error pOut giving a description of what went wrong.

State: Current video state (Loading, Playing, Paused, Stopped, Unloading, Unloaded). Error: Output string that describes the error. Remarks

You don't necesserely need to use the Video Loader BB, you may directly use the Video Player BB that handles loading and unloading of the video. But as loading a video may be long, you can use this BB to load your video in advance, avoiding a delay when playing the video, and unload it once you've finished using it. If you use the Video Loader BB for a manual control of the loading, make sure to uncheck the Manage Load / Unload setting of the Virtools Player BB you use with this video. 载入视频

在Video/Basic中将其分类

描述

适用于视频

控制一个视频的载入

AllVideoBBs.cmo

技术信息

Load：激活该进程

Unload：激活该进程

Loaded：当Load完成时则被激活

Unloaded：当Unload完成时则被激活

Error：如果BB遇到一个错误则被激活，错误的pOut 对错误做了描述

State：现有的视频的状态（载入，播放，暂停，停止，没有被载入）

Error：描述错误的输出字符串

评论

你不能成功的使用Video Loader BB，你可能直接的使用Video Player BB能够掌握载入和没有被载入的视频。但是当你载入一个视频时，你能使用这个BB预先载入你的视频，播放视频时可以避免一个延迟，然后当你完成使用他时，他会被卸下。如果你使用Video Loader BB对一个手动的载入控制，确保没有对你使用的这个视频钩选the Manage Load/Unload setting of the Virtools Player BB

?VERY IMPORTANT: By default, no video engine is

downloaded by the Virtools

Web player. You must add the Dx8 Video Dependency BB(and optionally the Dx9 Video

Dependency BB) to your

composition to ensure the

Dx8 (or Dx9) Video Engine is downloaded by the users'

Virtools 3D Life Player. If DirectX 8 or 9 is installed, video playback will be

available for your

composition with the Dx8 (or Dx9) Video Engine.

?Loading, playing and

unloading of a video is done asynchronously, several

frames may therefore pass

before the outputs are

activated.

?When a video loading is finished, the video object

receives the OnVideoLoaded

message.

?When a video unloading is finished, the video object

receives the

OnVideoUnloaded message. ?Using several Video Loader BBs on the same video and the same time is not recommended as they may interfere. 非常重要：通过默认值，没有视频引擎通过Virtools 网络播放器被下载。你必须添加一个Dx8 Video Dependency BB（或者是Dx9 Video Dependency BB)到你的项目中，确保DX8（或是DX9）视频引擎被下载通过用户的Virtools 3D播放器。如果DX8或DX9被安装，视频录制将对于你的项目是可用的

载入，播放和卸下一个视频，一些帧可能因此被错过在输出接口被激活之前

当一个视频完成载入时，视频对象收到一个OnVideoLoaded信息。

当一个视频的unloading完成时，视频对象接收到一个OnVideoUnloaded信息。

在同一个视频上使用一些Video Loader BBs以及在相同的时间没有推荐

Video Output Control

Version 1.00 - Virtools Categorized in Video/Controls

Description

Apply to a VIDEO.

Modify a video's output controls (runtime options).

AllVideoBBs.cmo

Technical Information

In: activates the process.

Out: is activated if In has finished.

Error: is activated if the building block encounters an error, Error pOut giving a description of what went wrong.

Destination: Rectangle within the 3D Layout or rendering window where the video has to appear. If Right is 0, it is replaced by the rendering window's Right hand side. The same applies to the Bottom value.

Error: Output string that describes the error. Remarks

No controls are available for video texture output type. Therefore, this BB only applies to video screen output type.

The destination rectangle is always given according to the rendering window. Camera Aspect Ratio is therefore not taken into account.

When playing in fullscreen mode, screen videos can not be stretched larger than their initial size. The video is therefore placed at the center of the given destination rectangle. 视频输出控制

在Video/Controls中将其分类

描述

适用于视频

修改一个视频的输出控制（运行选项）

AllVideoBBs.cmo

技术信息

In：触发该进程

Out：当In被完成时则激活

Error：如果BB有一个错误，错误pOut给错误进行描述

Desatination：视频会在3D视图窗口或是渲染窗口的方块中出现。如果Right为0，他将代替渲染窗口中的右手边。相同的适用于底部的值

Error：用来描述错误的输出字符串

评论

没有控制是对视频纹理输出类型是可用的。因此，这个BB只适用于视频屏幕输出类型

目标矩形总是被给定通过渲染窗口。Camera Aspect Ratio因此没有被放到总数中去

当是一个全屏播放模式时，屏幕视频不能被伸长，并且大于他的初始尺寸。视频因此代替在给定的目标矩形的中心

Video Output Properties

Version 1.00 - Virtools Categorized in Video/Properties

Description

Apply to a VIDEO.

Modify a video's output properties (static options).

AllVideoBBs.cmo

Technical Information

In: activates the process.

Out: is activated if In has finished.

Error: is activated if the building block encounters an error, Error pout giving a description of what went wrong.

Texture : The texture where the Video is to be displayed.

Best Video Format: Should the video engine choose the best texture format to optimize video display? Non Pow2 Conditional Texture: Should the video engine try to create a non power of two conditional texture to fit the video size ? (Note this optimization depends on the graphic card's capabilities.) Error: Output string that describes the error.

Output Properties : Each checkbox allows you to remove the corresponding pIn above. 视频输出属性

在Video/Properties中将其分类

描述

适用于视频

修改一个视频的输出属性（静态选项）AllVideoBBs.cmo

技术信息

In：激活该进程

Out：当In完成时则被激活

Error：如果BB遇到一个错误，错误pOut对错误进行了描述

Texture：将展示的视频的纹理

Best Video Format：视频引擎选择最好的贴图格式来使得视频更完美？

Non Pow2 Conditional Texture：视频引擎应该创建一个没有力量的纹理来适合视频的尺寸？（注意到这个最优化取决于生动的显卡能力）

Error：描述错误信息的输出字符串

Output Properties：每个checkbox

允许你移除与上面一致pIn

Remarks

?Properties can not be

changed while the video is

loaded. The BB will fail in

this case, so, make sure to

unload your video before

activating this BB.

?No properties are available for video screen output type.

Therefore, this BB only

applies to video texture

output type.

?VERY IMPORTANT: By default, no video engine is

downloaded by the Virtools

Web player. You must add the

Dx8 Video Dependency BB(and

optionally the Dx9 Video

Dependency BB) to your

composition to ensure the

Dx8 (or Dx9) Video Engine is

downloaded by the users'

Virtools 3D Life Player. If

DirectX 8 or 9 is installed,

video playback will be

available for your

composition with the Dx8 (or

Dx9) Video Engine. 评论

当视频载入时，属性不能被改变。这个BB将在这个事件中失败。所以，在激活这个BB之前确保卸下你的视频。

对于输视频的出类型没有属性是可用的。因此，这个BB只适用于视频纹理输出类型

很重要：通过默认值，没有视频引擎通过Virtools 网络播放器被下载。你必须添加一个Dx8 Video Dependency BB（或者是Dx9 Video Dependency BB)到你的项目中，确保DX8（或是DX9）视频引擎被下载通过用户的Virtools 3D播放器。如果DX8或DX9被安装，视频录制将对于你的项目是可用的

Video Player

Version 1.00 - Virtools Categorized in Video/Basic

Description

Apply to a VIDEO.

Expose Playing Control on a video. AllVideoBBs.cmo

Technical Information

Play: activates the process. Stop: activates the process. Pause/Resume: pauses and resumes the videos once it is playing. Start Playing: is activated when the video starts playing.

Stop Playing: is activated when the video stops playing after a Stop activation or if the video reaches its end and the video Loop option is not enabled.

Paused: is activated when the video has paused.

Resumed: is activated when the video has resumed.

Error: is activated if the building block encounters an error, Error pOut giving a description of what went wrong.

State: current video state (Loading, Playing, Paused, Stopped, Unloading, Unloaded).

Error: output string that describes the error. 视频播放器

在Video/Basic中将其分类

描述

适用于视频

暴露一个视频的播放控制AllVideoBBs.cmo

技术信息

Play：激活该进程

Stop：激活该进程

Pause/Resume：当他开始播放时，停止并重新开始该视频

Start Playing：当视频开始播放时则被激活

Stop Playing：在一个停止的激活视频停止播放，或者如果视频达到它的底部并视频循环的选项

Paused：当视频停止时则被激活

Resumed：当视频重新开始时则被激活

Error：如果BB遇到一个错误，错误的pOut对产生的错误进行描述

State：现有的视频状态（载入中，播放中，暂停，停止，没有正在载入，没有载入）

Error：描述错误的输出字符串

Manage Load / Unload: when checked, the video is loaded automatically before playing when you activate the Play input and unloaded when the video is stopped after activating the Stop input (or when it reaches its end and the video Loop control is not enabled). You therefore don't need to use the Video Loader BB.

When unchecked, it is your responsabilty to handle the loading and unloading of the video with the Video Loader BB.

Remarks

?VERY IMPORTANT: By default, no video engine is

downloaded by the Virtools

Web player. You must add the

Dx8 Video Dependency BB(and

optionally the Dx9 Video

Dependency BB) to your

composition to ensure the

Dx8 (or Dx9) Video Engine is

downloaded by the users'

Virtools 3D Life Player. If

DirectX 8 or 9 is installed,

video playback will be

available for your

composition with the Dx8 (or

Dx9) Video Engine.

?If you are using the Video Loader BB to manually handle

video loading, make sure to

uncheck the Manager Load /

Unload setting.

?When the Manager Load / Unload setting is checked, you shouldn't use the Stop

entry to restart your video, use the

Video Seek BB instead to avoid

unloading and reloading the video. Manage Load/Unload：当被钩选时，视频将自动被载入在播放之前，当你激活播放输入时并卸下。当视频在激活Stop input（或是当他达到它的结尾并且视频循环控制不能进行）被激活之后被停止。你因此不需要使用Video Loader BB.

当没有被钩选时，是你的答复可以掌握载入或是不载入视频，通过Video Loader BB

评论

很重要：通过默认值，没有视频引擎通过Virtools 网络播放器被下载。你必须添加一个Dx8 Video Dependency BB（或者是Dx9 Video Dependency BB)到你的项目中，确保DX8（或是DX9）视频引擎被下载通过用户的Virtools 3D播放器。如果DX8或DX9被安装，视频录制将对于你的项目是可用的

如果你使用Video Loader BB进行手动的掌握视频载入，确保没有钩选Manager Load / Unload设置

当Manager Load/Unload设置被钩选，你不能使用停止进入来重新进入你的视频，使用Video Seek BB 来代替避免重新载入你的视频

Video Seek

Version 1.00 - Virtools Categorized in Video/Basic Description Apply to a VIDEO .

Seek a particular moment in a video in mn:s:ms. AllVideoBBs.cmo

Technical Information

In: activates the process.

Out: is activated if In has finished. Error: is activated if the building block encounters an error, Error pOut giving a description of what went wrong.

Seek Time : Used to locate a position in the video in minutes : seconds : milliseconds or in percentage depending on the current setting value.

Error: Output string that describes the error. Homogeneous: Should the BB use a percentage progression or a playing time as seeking position? Remarks

? Seeking is a feature depending on the compression format of the video. It will therefore fail if your video does not have seeking capabilities. You may use the Support Seeking parameter operation to get this information. Note: it is never supported by live videos.

? Seeking is not always smooth, it depends on the compression algorithm and the keyframe rate used for the video compression. If you need a smooth seeking, you will have to compress your video with many keyframes to facilitate the video decompression at any time position.

视频搜索

在Video/Basic 中将其分类 描述 适用于视频

在一个视频里搜索一个特别的时刻 AllVideoBBs.cmo 技术信息

In ：激活该进程

Out ：当In 被完成时则被激活

Error ：如果BB 遇到了一个错误则被激活，错误的pOut 对所发生的错误进了一个描述

Seek Time ：使用一个本地的位置在视频中以分：秒：毫秒或是以百分比来显示现有的视频设置的值

Error ：用来描述错误的输出字符串

Homogeneous ：BB 是否应该使用一个百分比的值来表示年厘时亿年个或是给搜索的位置设定一个播放时间？ 评论

搜索是取决于视频的压缩格式。如果你的视频没有搜索的功能，他将因此失败。你可以使用支持搜索的参数进行运算来获取这个信息

提示：他从来不支持活动的视频

搜索不总是很容易的，他取决于压缩的方式并且用来视频压缩的主要的帧。如果你需要一个顺利的搜索，你要伴随着一些主要的帧来压缩你的视频，使在任何位置上视频的压缩更加容易。

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