適用於 Adobe® Flash® Platform 的 ActionScript® 3.0 參考
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H264VideoStreamSettings  - AS3

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特殊類型

附錄

新增內容
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移動 XML 元素
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如何使用 ActionScript 範例
法律聲明
套件flash.media
類別public class H264VideoStreamSettings
繼承H264VideoStreamSettings Inheritance VideoStreamSettings Inheritance Object

語言版本: ActionScript 3.0
執行階段版本: Flash Player 11, AIR 3

H264VideoStreamSettings 類別能為每個 NetStream 指定視訊壓縮設定。一旦 Camera 附加到 NetStream 並且已啟動壓縮,就會立即驗證屬性。



公用屬性
 屬性定義自
 Inheritedbandwidth : int
[唯讀] 擷取目前播出視訊內容可使用的最大頻寬量,以每秒位元組為單位。
VideoStreamSettings
  codec : String
[覆寫] [唯讀] 壓縮時所用的視訊轉碼器。
H264VideoStreamSettings
 Inheritedconstructor : Object
類別物件的參照或是特定物件實體的建構函數。
Object
 Inheritedfps : Number
[唯讀] 編碼視訊影格的最大影格速率,以每秒影格數為單位。
VideoStreamSettings
 Inheritedheight : int
[唯讀] 目前編碼的高度,以像素為單位。
VideoStreamSettings
 InheritedkeyFrameInterval : int
[唯讀] 完整傳輸的視訊影格 (稱為關鍵影格或 IDR 影格) 數目,而非視訊壓縮演算法漸變處理的影格數。
VideoStreamSettings
  level : String
[唯讀] H.264/AVC 編碼時所用的層級。
H264VideoStreamSettings
  profile : String
[唯讀] H.264/AVC 編碼時所用的描述檔。
H264VideoStreamSettings
 Inheritedquality : int
[唯讀] 圖片品質的必要水準,由每個視訊影格所套用的壓縮量決定。
VideoStreamSettings
 Inheritedwidth : int
[唯讀] 目前編碼的寬度,以像素為單位。
VideoStreamSettings
公用方法
 方法定義自
  
建立設定物件,該物件會指定使用 H.264/AVC 轉碼器進行視訊壓縮。
H264VideoStreamSettings
 Inherited
指出物件是否有已定義的指定屬性。
Object
 Inherited
指出 Object 類別的實體是否位於指定為參數的物件原型鏈中。
Object
 Inherited
指出指定的屬性是否存在,以及是否可列舉。
Object
 Inherited
setKeyFrameInterval(keyFrameInterval:int):void
完整傳輸的視訊影格 (稱為關鍵影格或 Instantaneous Decoding Refresh (IDR) 影格) 數目,而非視訊壓縮演算法漸變處理的影格數。
VideoStreamSettings
 Inherited
setMode(width:int, height:int, fps:Number):void
設定視訊編碼所使用的解析度和影格速率。
VideoStreamSettings
  
設定視訊編碼的描述檔和層級。
H264VideoStreamSettings
 Inherited
為迴圈作業設定動態屬性的可用性。
Object
 Inherited
setQuality(bandwidth:int, quality:int):void
設定每秒最大頻寬量,或目前播出視訊內容可使用的必要圖片品質。
VideoStreamSettings
 Inherited
傳回代表此物件的字串,根據地區特定慣例進行格式化。
Object
 Inherited
會傳回指定之物件的字串形式。
Object
 Inherited
會傳回指定之物件的基本值。
Object
屬性詳細資訊

codec

屬性
codec:String  [唯讀] [覆寫]

語言版本: ActionScript 3.0
執行階段版本: Flash Player 11, AIR 3

壓縮時所用的視訊轉碼器。



實作
    override public function get codec():String

level

屬性 
level:String  [唯讀]

語言版本: ActionScript 3.0
執行階段版本: Flash Player 11, AIR 3

H.264/AVC 編碼時所用的層級。若要為此屬性設定所需的值,請使用 setProfileLevel() 方法。如果選取的層級對指定的解析度和影格速率而言不夠高,H.264 轉碼器可以增加此屬性。



實作
    public function get level():String

profile

屬性 
profile:String  [唯讀]

語言版本: ActionScript 3.0
執行階段版本: Flash Player 11, AIR 3

H.264/AVC 編碼時所用的描述檔。若要為此屬性設定所需的值,請使用 setProfileLevel() 方法。



實作
    public function get profile():String
建構函式詳細資料

H264VideoStreamSettings

()建構函式
public function H264VideoStreamSettings()

語言版本: ActionScript 3.0
執行階段版本: Flash Player 11, AIR 3

建立設定物件,該物件會指定使用 H.264/AVC 轉碼器進行視訊壓縮。

方法詳細資訊

setProfileLevel

()方法
public function setProfileLevel(profile:String, level:String):void

語言版本: ActionScript 3.0
執行階段版本: Flash Player 11, AIR 3

設定視訊編碼的描述檔和層級。描述檔的可能值為 H264Profile.BASELINEH264Profile.MAIN。預設值為 H264Profile.BASELINE。忽略其他值,因此產生錯誤。請參閱 H264Profile 類別,取得詳細資訊。支援的層級為 1、1b、1.1、1.2、1.3、2、2.1、2.2、3、3.1、3.2、4、4.1、4.2、5 和 5.1。層級會在解析度和影格速率有需要時增加。請參閱 H264Level 類別,取得詳細資訊。

參數

profile:String — 要求的編碼器描述檔做為字串。請參閱 H264Profile 類別,取得可能的值。
 
level:String — 要求的編碼器層級做為字串。請參閱 H264Level 類別,取得可能的值。


擲回值
Error — 如果指定的描述檔或層級無效。




[ X ]為什麼顯示英文?
「ActionScript 3.0 參考」的內容是以英文顯示

並非所有「ActionScript 3.0 參考」的內容都翻譯為所有語言。當語言元素未翻譯時,就會以英文顯示。例如,ga.controls.HelpBox 類別並沒有翻譯為任何語言。因此在參考的繁體中文版本中,ga.controls.HelpBox 類別就會以英文顯示。