使用 FLEX 为特定元素设置亮度对比度色调饱和度

Question

我试图让用户使用滑块为远程用户相机设置亮度、对比度、色调和饱和度（这只会影响正在调整首选项的本地用户）。我在这里看不到 class：http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/flash/media/Camera.html# 所以我使用下面的库将元素 "remoteVideo"（远程摄像机）设置为用户想要的任何亮度、对比度、色相和饱和度。我收到 color.brightness.remoteVideo(0, BrightnessSlider.value) 的语法错误；（以及对比度、色调和饱和度）表示（此行有多个标记。1119：通过使用 fl.motion.adjustcolor 的引用访问未定义的属性亮度 & - 访问未定义的属性 remoteVideo ，这是明确定义的，因为 RTMFP 视频聊天 works\compiles 没有下面的代码就可以了：

（如果有帮助，下面没有我更改的原始源代码：https://github.com/MonaSolutions/MonaClients/blob/master/VideoPhone/src/VideoPhone.mxml）

// 亮度对比度色调饱和度库

import flash.display.Sprite;
import fl.motion.AdjustColor;
import flash.filters.ColorMatrixFilter;
import fl.events.SliderEvent;   
import flash.external.ExternalInterface;

// 亮度对比度色调饱和度变量

        private var color:AdjustColor = new AdjustColor(); //This object will hold the color properties
        private var filter:ColorMatrixFilter; //Will store the modified color filter to change the video

// 固定函数

        private function BrightnessLevel(e:Event = null):void
        {
            color.brightness = BrightnessSlider.value;
            var mMatrix:Array = color.CalculateFinalFlatArray();
            filter = new ColorMatrixFilter(mMatrix);
            remoteVideo.filters = [filter];
            status("Setting brightness to: " + BrightnessSlider.value + "\n");
        }

        private function ContrastLevel(e:Event = null):void
        {

            color.contrast = ContrastSlider.value;
            var mMatrix:Array = color.CalculateFinalFlatArray();
            filter = new ColorMatrixFilter(mMatrix);
            remoteVideo.filters = [filter];
            status("Setting contrast to: " + ContrastSlider.value + "\n");

        }

        private function HueLevel(e:Event = null):void
        {


            color.hue = HueSlider.value;
            var mMatrix:Array = color.CalculateFinalFlatArray();
            filter = new ColorMatrixFilter(mMatrix);
            remoteVideo.filters = [filter];
            status("Setting hue to: " + HueSlider.value + "\n");

        }

        private function SaturationLevel(e:Event = null):void
        {


            color.saturation = SaturationSlider.value;
            var mMatrix:Array = color.CalculateFinalFlatArray();
            filter = new ColorMatrixFilter(mMatrix);
            remoteVideo.filters = [filter];
            status("Setting saturation to: " + SaturationSlider.value + "\n");

        }

// 亮度对比度色调饱和度滑块

        <s:NavigatorContent label="ADJUST COLORS" enabled="{currentState != LoginNotConnected}">
            <s:layout>
                <s:HorizontalLayout/>
            </s:layout>

            <s:VGroup>
                <s:HGroup>
                    <s:Panel width="247" height="67.5" backgroundColor="0xA0A0A0"
                             title="Brightness">
                        <s:layout>
                            <s:VerticalLayout paddingLeft="8"/>
                        </s:layout>
                        <s:HSlider id="BrightnessSlider" width="220"
                                   change="BrightnessLevel(event)" maximum="100" minimum="-100"
                                   showDataTip="false" value="0"/>
                    </s:Panel>

                    <s:Panel width="247" height="67.5" backgroundColor="0xA0A0A0"
                             title="Contrast">
                        <s:layout>
                            <s:VerticalLayout paddingLeft="8"/>
                        </s:layout>
                        <s:HSlider id="ContrastSlider" width="220" change="ContrastLevel(event)"
                                   maximum="100" minimum="-100" showDataTip="false" value="0"/>
                    </s:Panel>
                </s:HGroup>

                <s:HGroup>

                    <s:Panel width="247" height="67.5" backgroundColor="0xA0A0A0" title="Hue">
                        <s:layout>
                            <s:VerticalLayout paddingLeft="8"/>
                        </s:layout>
                        <s:HSlider id="HueSlider" width="220" change="HueLevel(event)"
                                   maximum="180" minimum="-180" showDataTip="false" value="0"/>
                    </s:Panel>
                    <s:Panel width="247" height="67.5" backgroundColor="0xA0A0A0"
                             title="Saturation">
                        <s:layout>
                            <s:VerticalLayout paddingLeft="8"/>
                        </s:layout>
                        <s:HSlider id="SaturationSlider" width="220"
                                   change="SaturationLevel(event)" maximum="100" minimum="-100"
                                   showDataTip="false" value="0"/>
                    </s:Panel>
                </s:HGroup>
            </s:VGroup>




        </s:NavigatorContent>

Answer 1

根据 AdjustColor 的文档，每个属性（亮度、对比度、色调、饱和度）都是一个数字。所以这一行：

color.brightness.remoteVideo(0, BrightnessSlider.value);

正在尝试从 color.brightness 访问属性 remoteVideo，这是一个数字。它告诉你 Number.

上没有属性 "remoteVideo"

http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/fl/motion/AdjustColor.html

编辑：像这样的东西可能有效也可能无效：（我还没有测试过）

color.brightness = BrightnessSlider.value;
var mMatrix:Array = color.CalculateFinalFlatArray();
filter = new ColorMatrixFilter(mMatrix);
remoteVideo.filters = [filter];

您可以通过实例化一次并仅更新其矩阵来避免不断创建新的过滤器属性。

    private var color:AdjustColor = new AdjustColor(); //This object will hold the color properties
    private var filter:ColorMatrixFilter = new ColorMatrixFilter(); //Will store the modified color filter to change the video

    private function BrightnessLevel(e:Event = null):void
    {
        status("Setting brightness to: " + BrightnessSlider.value + "\n");
        color.brightness = BrightnessSlider.value;
        applyFilter();
    }

    private function ContrastLevel(e:Event = null):void
    {
        status("Setting contrast to: " + ContrastSlider.value + "\n");
        color.contrast = ContrastSlider.value;
        applyFilter();
    }

    private function HueLevel(e:Event = null):void
    {
        status("Setting hue to: " + HueSlider.value + "\n");
        color.hue = HueSlider.value;
        applyFilter();
    }

    private function SaturationLevel(e:Event = null):void
    {
        status("Setting saturation to: " + SaturationSlider.value + "\n");
        color.saturation = SaturationSlider.value;
        applyFilter();
    }

    private function applyFilter():void
    {
        filter.matrix = color.CalculateFinalFlatArray();
        remoteVideo.filters = [filter];
    }

使用 FLEX 为特定元素设置亮度对比度色调饱和度

setting Brightness Contrast Hue Saturation for a specific element with FLEX

apache-flex

flash

actionscript

actionscript-3