本文属于机器翻译版本。若本译文内容与英语原文存在差异，则一律以英文原文为准。

# 用于跟踪客户端广告的玩家控件和功能
<a name="ad-reporting-client-side-ad-tracking-schema-player-controls"></a>

MediaTailor 客户端跟踪元数据支持各种玩家控件和功能。以下列表描述了流行的玩家控件。

**Topics**
+ [擦洗](#ad-reporting-client-side-ad-tracking-schema-player-controls-scrubbing)
+ [广告倒计时器](#ad-reporting-client-side-ad-tracking-schema-player-controls-ad-countdown-timer)
+ [可跳过的广告](#ad-reporting-client-side-ad-tracking-schema-player-controls-skippable-ads)
+ [广告点击率](#ad-reporting-client-side-ad-tracking-schema-player-controls-ad-clickthrough)
+ [配套广告](#ad-reporting-client-side-ad-tracking-schema-player-controls-companion-ads)
+ [互动广告 (SIMID)](#ad-reporting-client-side-ad-tracking-schema-player-controls-simid-ads)
+ [互动广告 (VPAID)](#ad-reporting-client-side-ad-tracking-schema-player-controls-vpaid-ads)
+ [Google Why this Ad (WTA) 的图标](#ad-reporting-client-side-ad-tracking-schema-player-controls-google-wta)

## 擦洗
<a name="ad-reporting-client-side-ad-tracking-schema-player-controls-scrubbing"></a>

为了增强播放体验，播放器可以在播放时间轴中显示广告位置。 MediaTailor 在客户端跟踪响应中以`startTimeInSeconds`值的形式提供这些广告位置。

**注意**  
一些流媒体提供商会阻止清理广告位置。

![屏幕截图显示了视频时间轴中广告播放位置的 MediaTailor 标记。](http://docs.aws.amazon.com/zh_cn/mediatailor/latest/ug/images/scrubbing.png)


以下客户端跟踪负载 JSON 响应显示了 avails 数组的根 JSON 对象内的空闲时间（广告中断）开始时间。玩家使用这些数据在玩家时间轴上显示广告时段的位置，即 28 秒。

```
{
  "avails": [
    {
      "adBreakTrackingEvents": [],
      "adMarkerDuration": null,
      "ads": [...],
      "availId": "7",
      "availProgramDateTime": null,
      "duration": "PT30S",
      "durationInSeconds": 30,
      "meta": null,
      "nonLinearAdsList": [],
      "startTime": "PT28S",
      "startTimeInSeconds": 28
    }
  ],
  "dashAvailabilityStartTime": null,
  "hlsAnchorMediaSequenceNumber": null,
  "nextToken": "UFQxMk0zNC44NjhTXzIwMjMtMDctMjFUMjA6MjM6MDcuNzc1NzE2MzAyWl8x",
  "nonLinearAvails": []
}
```

## 广告倒计时器
<a name="ad-reporting-client-side-ad-tracking-schema-player-controls-ad-countdown-timer"></a>

借助， MediaTailor 您可以使用广告倒计时器来帮助您的受众在广告插播观看期间保持参与度。观众可以使用计时器来了解广告中断时间何时结束以及他们的节目何时恢复。

![屏幕截图 MediaTailor 显示了广告倒计时器，该计时器告诉受众在节目恢复之前的剩余时间。](http://docs.aws.amazon.com/zh_cn/mediatailor/latest/ug/images/ad-countdown-timer.png)


客户端跟踪元数据中在广告倒计时器中起作用的元素是`startTime``startTimeInSeconds``duration`、和。`durationInSeconds`玩家使用这些元数据以及单独跟踪的会话经过的时间来确定何时显示计时器以及应该从哪个值开始倒计时。

以下客户端跟踪负载 JSON 响应显示广告倒计时器所需的信息。

```
{
  "avails": [
    {
      "adBreakTrackingEvents": [],
      "adMarkerDuration": null,
      "ads": [...],
      "availId": "7",
      "availProgramDateTime": null,
      "duration": "PT30S",
      "durationInSeconds": 30,
      "meta": null,
      "nonLinearAdsList": [],
      "startTime": "PT28S",
      "startTimeInSeconds": 28
    }
  ],
  "dashAvailabilityStartTime": null,
  "hlsAnchorMediaSequenceNumber": null,
  "nextToken": "UFQxMk0zNC44NjhTXzIwMjMtMDctMjFUMjA6MjM6MDcuNzc1NzE2MzAyWl8x",
  "nonLinearAvails": []
}
```

当会话的经过时间达到无效的开始时间时，玩家会显示一个倒数计时器，其值与该无效的持续时间相匹配。随着经过的时间超过无效的开始时间，倒计时计时器的值会降低。

**Example 公式：HLS（直播和 VOD）和 DASH（VOD）的倒计时器**  
+ `session_start_time`= 所有`EXT-INF`持续时间值的总和-三个最新`EXT-INF`媒体序列的持续时间值
+ 计时器值 = `duration`-(`session_elapsed_time`-`startTime`)

![该图显示了HLS（直播和视频点播）和达世币（VOD）清单广告倒数计时器的计算结果，该计时器基于会话的开始时间和空闲时间的开始时间。](http://docs.aws.amazon.com/zh_cn/mediatailor/latest/ug/images/ad-countdown-timer-hls-dash-vod.png)


**Example 公式：DASH 的倒计时器（直播）**  
+ `session_start_time`=（最新区段的 `startTime` \+`duration`）/`timescale`-`MPD@suggestedPresentationDelay`
+ 计时器值 = `duration`-(`session_elapsed_time`-`startTime`)

![该图显示了根据会话的开始时间和空闲开始时间对实时 DASH 清单进行广告倒计时计时器的计算。](http://docs.aws.amazon.com/zh_cn/mediatailor/latest/ug/images/ad-countdown-timer-dash-live.png)


## 可跳过的广告
<a name="ad-reporting-client-side-ad-tracking-schema-player-controls-skippable-ads"></a>

*可跳过的广告*是允许观众跳过部分广告以恢复观看节目的广告位。在 VAST 中，该`Linear@skipOffset`属性用于标识可跳过的广告。

以下 VAST 响应显示了如何使用可跳过的广告：

```
<?xml version="1.0" encoding="UTF-8"?>
<VAST xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="vast.xsd" version="3.0">
  <Ad>
    <InLine>
      ...
      <Creatives>
        <Creative id="1" sequence="1">
          <Linear skipoffset="00:00:05">
            <Duration>00:00:15</Duration>
            <MediaFiles>
              <MediaFile id="EMT" delivery="progressive" width="640" height="360" type="video/mp4" bitrate="143" scalable="true" maintainAspectRatio="true"><![CDATA[{{https://ads.com/file.mp4}}]]></MediaFile>
            </MediaFiles>
          </Linear>
        </Creative>
      </Creatives>
      ...
    </InLine>
  </Ad>
</VAST>
```

以下客户端跟踪负载 JSON 响应显示了数组内的`ads`广告元数据。该数组包含从 VAST 响应中 MediaTailor获得的`skipOffset`值。

```
{
  "avails": [
    {
      "adBreakTrackingEvents": [],
      "adMarkerDuration": null,
      "ads": [
        {
          "adId": "1",
          "adParameters": "",
          "adProgramDateTime": "2023-07-31T16:11:40.693Z",
          "adSystem": "2.0",
          "adTitle": "AD-skiing-15",
          "adVerifications": [],
          "companionAds": [...],
          "creativeId": "1",
          "creativeSequence": "1",
          "duration": "PT15.015S",
          "durationInSeconds": 15.015,
          "extensions": [],
          "mediaFiles": {
            "mediaFilesList": [],
            "mezzanine": ""
          },
          "skipOffset": "00:00:05",
          "startTime": "PT9.943S",
          "startTimeInSeconds": 9.943,
          "trackingEvents": [
            {
              "beaconUrls": [
                "https://adserverbeaconing.com/v1/impression"
              ],
              "duration": "PT15.015S",
              "durationInSeconds": 15.015,
              "eventId": "2697726",
              "eventProgramDateTime": null,
              "eventType": "impression",
              "startTime": "PT9.943S",
              "startTimeInSeconds": 9.943
            }
          ],
          "vastAdId": ""
        }
      ],
      "availId": "2697726",
      "availProgramDateTime": "2023-07-31T16:11:40.693Z",
      "duration": "PT15.015S",
      "durationInSeconds": 15.015,
      "meta": null,
      "nonLinearAdsList": [],
      "startTime": "PT9.943S",
      "startTimeInSeconds": 9.943
    }
  ],
  "dashAvailabilityStartTime": null,
  "hlsAnchorMediaSequenceNumber": null,
  "nextToken": "",
  "nonLinearAvails": []
}
```

## 广告点击率
<a name="ad-reporting-client-side-ad-tracking-schema-player-controls-ad-clickthrough"></a>

Click-through URI 允许广告商衡量广告在吸引观众注意力方面的成功程度。观众点击正在播放的广告的活跃视频帧后，网络浏览器会打开广告商主页或活动登录页面的 URI。玩家开发者决定点击行为，例如在广告视频上叠加按钮或标签，并提供一条消息供点击以了解更多信息。玩家开发者通常会在观众点击活动视频帧后暂停广告的视频。

![视频播放器中广告点击的屏幕截图。观众点击视频画面。玩家暂停视频，然后打开网络浏览器，将观众带到广告商的主页或活动登录页面。](http://docs.aws.amazon.com/zh_cn/mediatailor/latest/ug/images/ad-clickthrough.png)


MediaTailor 可以解析并提供 VAST 响应中返回的任何线性视频点击事件网址。以下 VAST 响应显示了广告点击率示例。

```
<?xml version="1.0" encoding="UTF-8"?>
<VAST xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="vast.xsd" version="3.0">
  <Ad>
    <InLine>
      ...
      <Creatives>
        <Creative id="1" sequence="1">
          <Linear>
            <Duration>00:00:15</Duration>
            <MediaFiles>
              <MediaFile id="EMT" delivery="progressive" width="1280" height="720" type="video/mp4" bitrate="143" scalable="true" maintainAspectRatio="true"><![CDATA[{{https://ads.com/file.mp4}}]]></MediaFile>
            </MediaFiles>
            <VideoClicks>
              <ClickThrough id="EMT"><![CDATA[{{https://aws.amazon.com}}]]></ClickThrough>
              <ClickTracking id="EMT"><![CDATA[{{https://myads.com/beaconing/event=clicktracking}}]]></ClickTracking>
            </VideoClicks>
          </Linear>
        </Creative>
      </Creatives>
      ...
    </InLine>
  </Ad>
</VAST>
```

以下客户端跟踪负载 JSON 响应显示了如何在数 MediaTailor 组内显示点击和点击跟踪网址。`trackingEvents``clickThrough`事件类型代表点击广告，`clickTracking`事件类型代表点击跟踪网址。

```
{
  "avails": [
    {
      "adBreakTrackingEvents": [],
      "adMarkerDuration": null,
      "ads": [
        {
          "adId": "1",
          "adParameters": "",
          "adProgramDateTime": "2023-07-31T16:53:40.577Z",
          "adSystem": "2.0",
          "adTitle": "1",
          "adVerifications": [],
          "companionAds": [],
          "creativeId": "00006",
          "creativeSequence": "1",
          "duration": "PT14.982S",
          "durationInSeconds": 14.982,
          "extensions": [],
          "mediaFiles": {
            "mediaFilesList": [],
            "mezzanine": ""
          },
          "skipOffset": null,
          "startTime": "PT39.339S",
          "startTimeInSeconds": 39.339,
          "trackingEvents": [
            {
              "beaconUrls": [
                "https://myads.com/beaconing/event=impression"
              ],
              "duration": "PT14.982S",
              "durationInSeconds": 14.982,
              "eventId": "2698188",
              "eventProgramDateTime": null,
              "eventType": "impression",
              "startTime": "PT39.339S",
              "startTimeInSeconds": 39.339
            },
            {
              "beaconUrls": [
                "https://aws.amazon.com"
              ],
              "duration": "PT14.982S",
              "durationInSeconds": 14.982,
              "eventId": "2698188",
              "eventProgramDateTime": null,
              "eventType": "clickThrough",
              "startTime": "PT39.339S",
              "startTimeInSeconds": 39.339
            },
            {
              "beaconUrls": [
                "https://myads.com/beaconing/event=clicktracking"
              ],
              "duration": "PT14.982S",
              "durationInSeconds": 14.982,
              "eventId": "2698795",
              "eventProgramDateTime": null,
              "eventType": "clickTracking",
              "startTime": "PT39.339S",
              "startTimeInSeconds": 39.339
            }
          ],
          "vastAdId": ""
        }
      ],
      "availId": "2698188",
      "availProgramDateTime": "2023-07-31T16:53:40.577Z",
      "duration": "PT14.982S",
      "durationInSeconds": 14.982,
      "meta": null,
      "nonLinearAdsList": [],
      "startTime": "PT39.339S",
      "startTimeInSeconds": 39.339
    }
  ],
  "dashAvailabilityStartTime": null,
  "hlsAnchorMediaSequenceNumber": null,
  "nextToken": "UFQzOS4zMzlTXzIwMjMtMDctMzFUMTY6NTQ6MDQuODA1Mzk2NTI5Wl8x",
  "nonLinearAvails": []
}
```

## 配套广告
<a name="ad-reporting-client-side-ad-tracking-schema-player-controls-companion-ads"></a>

*配套广告*出现在线性广告素材旁边。使用配套广告通过显示产品、徽标和品牌信息来提高广告位的效果。展示广告可以采用快速响应（QR）码和可点击区域，以提高受众参与度。

MediaTailor 在 VAST 响应中支持配套广告。它可以分别传递来自`StaticResource``iFrameResource`、和`HTMLResource`节点的元数据。

以下 VAST 响应显示了线性广告和配套广告的位置和格式示例。

```
<?xml version="1.0" encoding="UTF-8"?>
<VAST xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="vast.xsd" version="3.0">
  <Ad>
    <InLine>
      ...
      <Creatives>
        <Creative id="1" sequence="1">
          <Linear>
            <Duration>00:00:10</Duration>
            <MediaFiles>
              <MediaFile id="EMT" delivery="progressive" width="640" height="360" type="video/mp4" bitrate="143" scalable="true" maintainAspectRatio="true"><![CDATA[{{https://ads.com/file.mp4}}]]></MediaFile>
            </MediaFiles>
          </Linear>
        </Creative>
        <Creative id="2" sequence="1">
          <CompanionAds>
            <Companion id="2" width="300" height="250">
              <StaticResource creativeType="image/png"><![CDATA[{{https://emt.com/companion/9973499273}}]]></StaticResource>
              <TrackingEvents>
                <Tracking event="creativeView"><![CDATA[{{https://beacon.com/1}}]]></Tracking>
              </TrackingEvents>
              <CompanionClickThrough><![CDATA[{{https://beacon.com/2}}]]></CompanionClickThrough>
            </Companion>
            <Companion id="3" width="728" height="90">
              <StaticResource creativeType="image/png"><![CDATA[{{https://emt.com/companion/1238901823}}]]></StaticResource>
              <TrackingEvents>
                <Tracking event="creativeView"><![CDATA[{{https://beacon.com/3}}]]></Tracking>
              </TrackingEvents>
              <CompanionClickThrough><![CDATA[{{https://beacon.com/4}}]]></CompanionClickThrough>
            </Companion>
          </CompanionAds>
        </Creative>
      </Creatives>
      ...
    </InLine>
  </Ad>
</VAST>
```

数据显示在列表的客户端跟踪响应中。`/avail/x/ads/y/companionAds`每个线性广告素材最多可以包含 6 个配套广告。如下例所示，配套广告显示在列表中

**注意**  
最佳做法是，应用程序开发人员应实现逻辑，在广告素材结束时明确移除或卸载配套广告。

```
{
  "avails": [
    {
      "adBreakTrackingEvents": [],
      "adMarkerDuration": null,
      "ads": [
        {
          "adId": "0",
          "adParameters": "",
          "adProgramDateTime": null,
          "adSystem": "EMT",
          "adTitle": "sample",
          "adVerifications": [],
          "companionAds": [
            {
              "adParameters": null,
              "altText": null,
              "attributes": {
                "adSlotId": null,
                "apiFramework": null,
                "assetHeight": null,
                "assetWidth": null,
                "expandedHeight": null,
                "expandedWidth": null,
                "height": "250",
                "id": "2",
                "pxratio": null,
                "renderingMode": null,
                "width": "300"
              },
              "companionClickThrough": "https://beacon.com/2",  
              "companionClickTracking": null,
              "htmlResource": null,
              "iFrameResource": null,
              "sequence": "1",
              "staticResource": "https://emt.com/companion/9973499273",
              "trackingEvents": [
                {
                  "beaconUrls": [
                    "https://beacon.com/1"
                  ],
                  "eventType": "creativeView"
                }
              ]
            },
            {
              "adParameters": null,
              "altText": null,
              "attributes": {
                "adSlotId": null,
                "apiFramework": null,
                "assetHeight": null,
                "assetWidth": null,
                "expandedHeight": null,
                "expandedWidth": null,
                "height": "90",
                "id": "3",
                "pxratio": null,
                "renderingMode": null,
                "width": "728"
              },
              "companionClickThrough": "https://beacon.com/4",
              "companionClickTracking": null,
              "htmlResource": null,
              "iFrameResource": null,
              "sequence": "1",
              "staticResource": "https://emt.com/companion/1238901823",
              "trackingEvents": [
                {
                  "beaconUrls": [
                    "https://beacon.com/3"
                  ],
                  "eventType": "creativeView"
                }
              ]
            }
          ],
          "creativeId": "1",
          "creativeSequence": "1",
          "duration": "PT10S",
          "durationInSeconds": 10,
          "extensions": [],
          "mediaFiles": {
            "mediaFilesList": [],
            "mezzanine": ""
          },
          "skipOffset": null,
          "startTime": "PT0S",
          "startTimeInSeconds": 0,
          "trackingEvents": [
            {
              "beaconUrls": [
                "https://beacon.com/impression/1"
              ],
              "duration": "PT10S",
              "durationInSeconds": 10,
              "eventId": "0",
              "eventProgramDateTime": null,
              "eventType": "impression",
              "startTime": "PT0S",
              "startTimeInSeconds": 0
            }
          ],
          "vastAdId": ""
        }
      ],
      "availId": "0",
      "availProgramDateTime": null,
      "duration": "PT10S",
      "durationInSeconds": 10,
      "meta": null,
      "nonLinearAdsList": [],
      "startTime": "PT0S",
      "startTimeInSeconds": 0
    }
  ],
  "dashAvailabilityStartTime": null,
  "hlsAnchorMediaSequenceNumber": null,
  "nextToken": "UFQxMFNfMjAyMy0wNy0wNlQyMToxMDowOC42NzQ4NDA1NjJaXzE%3D",
  "nonLinearAvails": []
}
```

## 互动广告 (SIMID)
<a name="ad-reporting-client-side-ad-tracking-schema-player-controls-simid-ads"></a>

*SecureInteractive 媒体接口定义 * (SIMID) 是互动广告局 (IAB) 在 VAST 4.x 标准中引入的互动广告标准。SIMID 将交互元素的加载与玩家身上的主要线性创作分离，在 VAST 响应中同时引用了这两个元素。 MediaTailor 在主要广告素材中拼接以保持播放体验，并将交互式组件的元数据放入客户端跟踪响应中。

在以下示例 VAST 4 响应中，SIMID 有效载荷位于`InteractiveCreativeFile`节点内部。

```
<?xml version="1.0"?>
<VAST xmlns:xsi="https://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="vast.xsd" version="3.0">
  <Ad id="1234567">
    <InLine>
      <AdSystem>SampleAdSystem</AdSystem>
      <AdTitle>Linear SIMID Example</AdTitle>
      <Description>SIMID example</Description>
      <Error>{{https://www.beacons.com/error}}</Error>
      <Impression>{{https://www.beacons.com/impression}}</Impression>
      <Creatives>
        <Creative sequence="1">
          <Linear>
            <Duration>00:00:15</Duration>
            <TrackingEvents>
                ...
            </TrackingEvents>
            <VideoClicks>
              <ClickThrough id="123">{{https://aws.amazon.com}}</ClickThrough>
              <ClickTracking id="123">{{https://www.beacons.com/click}}</ClickTracking>
            </VideoClicks>
            <MediaFiles>
              <MediaFile delivery="progressive" type="video/mp4">
                                {{https://interactive-ads.com/interactive-media-ad-sample/media/file.mp4}}
                            </MediaFile>
              <InteractiveCreativeFile type="text/html" apiFramework="SIMID" variableDuration="true">
                                {{https://interactive-ads.com/interactive-media-ad-sample/sample_simid.html}}
                            </InteractiveCreativeFile>
            </MediaFiles>
          </Linear>
        </Creative>
      </Creatives>
    </InLine>
  </Ad>
</VAST>
```

在以下 VAST 3 响应中，SIMID 有效载荷位于`Extensions`节点内部。

```
<?xml version="1.0"?>
<VAST xmlns:xsi="https://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="vast.xsd" version="3.0">
  <Ad id="1234567">
    <InLine>
      <AdSystem>SampleAdSystem</AdSystem>
      <AdTitle>Linear SIMID Example</AdTitle>
      <Description>SIMID example</Description>
      <Impression>{{https://www.beacons.com/impression}}</Impression>
      <Creatives>
        <Creative id="1" sequence="1">
          <Linear>
            <Duration>00:00:15</Duration>
            <TrackingEvents>
                ...
            </TrackingEvents>
            <VideoClicks>
              <ClickThrough id="123">{{https://aws.amazon.com}}</ClickThrough>
              <ClickTracking id="123">{{https://myads.com/beaconing/event=clicktracking}}</ClickTracking>
            </VideoClicks>
            <MediaFiles>
              <MediaFile delivery="progressive" type="video/mp4">
                                {{https://interactive-ads.com/interactive-media-ad-sample/media/file.mp4}}
                            </MediaFile>
            </MediaFiles>
          </Linear>
        </Creative>
      </Creatives>
      <Extensions>
        <Extension type="InteractiveCreativeFile">
          <InteractiveCreativeFile type="text/html" apiFramework="SIMID" variableDuration="true">
            {{https://interactive-ads.com/interactive-media-ad-sample/sample_simid.html}}
          </InteractiveCreativeFile>
        </Extension>
      </Extensions>
    </InLine>
  </Ad>
</VAST>
```

在以下客户端跟踪响应中，SIMID 数据显示在列表中。`/avails/x/ads/y/extensions`

```
{
  "avails": [
    {
      "adBreakTrackingEvents": [],
      "adMarkerDuration": null,
      "ads": [
        {
          "adId": "1",
          "adParameters": "",
          "adProgramDateTime": "2023-07-31T16:53:40.577Z",
          "adSystem": "2.0",
          "adTitle": "Linear SIMID Example",
          "adVerifications": [],
          "companionAds": [],
          "creativeId": "1",
          "creativeSequence": "1",
          "duration": "PT14.982S",
          "durationInSeconds": 14.982,
          "extensions": [
            {
              "content": "<InteractiveCreativeFile type=\"text/html\" apiFramework=\"SIMID\" variableDuration=\"true\">\n{{https://interactive-ads.com/interactive-media-ad-sample/sample_simid.html}}</InteractiveCreativeFile>",
              "type": "InteractiveCreativeFile"
            }
          ],
          "mediaFiles": {
            "mediaFilesList": [],
            "mezzanine": ""
          },
          "skipOffset": null,
          "startTime": "PT39.339S",
          "startTimeInSeconds": 39.339,
          "trackingEvents": [
            {
              "beaconUrls": [
                "{{https://myads.com/beaconing/event=impression}}"
              ],
              "duration": "PT14.982S",
              "durationInSeconds": 14.982,
              "eventId": "2698188",
              "eventProgramDateTime": null,
              "eventType": "impression",
              "startTime": "PT39.339S",
              "startTimeInSeconds": 39.339
            },
            {
              "beaconUrls": [
                "https://aws.amazon.com"
              ],
              "duration": "PT14.982S",
              "durationInSeconds": 14.982,
              "eventId": "2698188",
              "eventProgramDateTime": null,
              "eventType": "clickThrough",
              "startTime": "PT39.339S",
              "startTimeInSeconds": 39.339
            },
            {
              "beaconUrls": [
                "{{https://myads.com/beaconing/event=clicktracking}}"
              ],
              "duration": "PT14.982S",
              "durationInSeconds": 14.982,
              "eventId": "2698795",
              "eventProgramDateTime": null,
              "eventType": "clickTracking",
              "startTime": "PT39.339S",
              "startTimeInSeconds": 39.339
            }
          ],
          "vastAdId": ""
        }
      ],
      "availId": "2698188",
      "availProgramDateTime": "2023-07-31T16:53:40.577Z",
      "duration": "PT14.982S",
      "durationInSeconds": 14.982,
      "meta": null,
      "nonLinearAdsList": [],
      "startTime": "PT39.339S",
      "startTimeInSeconds": 39.339
    }
  ],
  "dashAvailabilityStartTime": null,
  "hlsAnchorMediaSequenceNumber": null,
  "nextToken": "UFQzOS4zMzlTXzIwMjMtMDctMzFUMTY6NTQ6MDQuODA1Mzk2NTI5Wl8x",
  "nonLinearAvails": []
}
```

## 互动广告 (VPAID)
<a name="ad-reporting-client-side-ad-tracking-schema-player-controls-vpaid-ads"></a>

*视频播放器广告接口定义 * (VPAID) 指定了广告与视频播放器之间的协议，该协议可实现广告互动和其他功能。对于直播， MediaTailor 支持VPAID格式，方法是在使用期间拼接slate片段，并在视频播放器消耗的客户端跟踪响应中放置VPAID广告素材的元数据。播放器下载VPAID文件并播放线性创意并执行客户的脚本。玩家*永远*不应该玩石板片段。

**注意**  
从 VAST 4.1 开始，VPAID 已过时。

![VPAID 广告播放示意图。 MediaTailor 在内容时间轴中拼接空闲时间段的片段。玩家在使用期限内切换到VPAID资产。](http://docs.aws.amazon.com/zh_cn/mediatailor/latest/ug/images/interactive-ads-vpaid.png)


以下示例显示了 VAST 响应中的 VPAID 内容。

```
<?xml version="1.0"?>
<VAST xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="vast.xsd" version="3.0">
  <Ad id="1234567">
    <InLine>
      <AdSystem>GDFP</AdSystem>
      <AdTitle>VPAID</AdTitle>
      <Description>Vpaid Linear Video Ad</Description>
      <Error>{{http://www.example.com/error}}</Error>
      <Impression>{{http://www.example.com/impression}}</Impression>
      <Creatives>
        <Creative sequence="1">
          <Linear>
            <Duration>00:00:00</Duration>
            <TrackingEvents>
              <Tracking event="start">{{http://www.example.com/start}}</Tracking>
              <Tracking event="firstQuartile">{{http://www.example.com/firstQuartile}}</Tracking>
              <Tracking event="midpoint">{{http://www.example.com/midpoint}}</Tracking>
              <Tracking event="thirdQuartile">{{http://www.example.com/thirdQuartile}}</Tracking>
              <Tracking event="complete">{{http://www.example.com/complete}}</Tracking>
              <Tracking event="mute">{{http://www.example.com/mute}}</Tracking>
              <Tracking event="unmute">{{http://www.example.com/unmute}}</Tracking>
              <Tracking event="rewind">{{http://www.example.com/rewind}}</Tracking>
              <Tracking event="pause">{{http://www.example.com/pause}}</Tracking>
              <Tracking event="resume">{{http://www.example.com/resume}}</Tracking>
              <Tracking event="fullscreen">{{http://www.example.com/fullscreen}}</Tracking>
              <Tracking event="creativeView">{{http://www.example.com/creativeView}}</Tracking>
              <Tracking event="acceptInvitation">{{http://www.example.com/acceptInvitation}}</Tracking>
            </TrackingEvents>
            <AdParameters><![CDATA[ {"videos":[ {"url":"{{https://my-ads.com/interactive-media-ads/media/media_linear_VPAID.mp4}}","mimetype":"video/mp4"}]} ]]></AdParameters>
            <VideoClicks>
              <ClickThrough id="123">http{{://google.com}}</ClickThrough>
              <ClickTracking id="123">{{http://www.example.com/click}}</ClickTracking>
            </VideoClicks>
            <MediaFiles>
              <MediaFile delivery="progressive" apiFramework="VPAID" type="application/javascript" width="640" height="480"> {{https://googleads.github.io/googleads-ima-html5/vpaid/linear/VpaidVideoAd.js}} </MediaFile>
            </MediaFiles>
          </Linear>
        </Creative>
      </Creatives>
    </InLine>
  </Ad>
</VAST>
```

以下示例显示了跟踪信息。

```
{
  "avails": [
    {
      "adBreakTrackingEvents": [],
      "adMarkerDuration": null,
      "ads": [
        {
          "adId": "1",
          "adParameters": "",
          "adProgramDateTime": "2023-07-31T16:53:40.577Z",
          "adSystem": "2.0",
          "adTitle": "1",
          "adVerifications": [],
          "companionAds": [],
          "creativeId": "00006",
          "creativeSequence": "1",
          "duration": "PT14.982S",
          "durationInSeconds": 14.982,
          "extensions": [],
          "mediaFiles": {
            "mediaFilesList": [],
            "mezzanine": ""
          },
          "skipOffset": null,
          "startTime": "PT39.339S",
          "startTimeInSeconds": 39.339,
          "trackingEvents": [
            {
              "beaconUrls": [
                "https://myads.com/beaconing/event=impression"
              ],
              "duration": "PT14.982S",
              "durationInSeconds": 14.982,
              "eventId": "2698188",
              "eventProgramDateTime": null,
              "eventType": "impression",
              "startTime": "PT39.339S",
              "startTimeInSeconds": 39.339
            },
            {
              "beaconUrls": [
                "https://aws.amazon.com"
              ],
              "duration": "PT14.982S",
              "durationInSeconds": 14.982,
              "eventId": "2698188",
              "eventProgramDateTime": null,
              "eventType": "clickThrough",
              "startTime": "PT39.339S",
              "startTimeInSeconds": 39.339
            },
            {
              "beaconUrls": [
                "https://myads.com/beaconing/event=clicktracking"
              ],
              "duration": "PT14.982S",
              "durationInSeconds": 14.982,
              "eventId": "2698795",
              "eventProgramDateTime": null,
              "eventType": "clickTracking",
              "startTime": "PT39.339S",
              "startTimeInSeconds": 39.339
            }
          ],
          "vastAdId": ""
        }
      ],
      "availId": "2698188",
      "availProgramDateTime": "2023-07-31T16:53:40.577Z",
      "duration": "PT14.982S",
      "durationInSeconds": 14.982,
      "meta": null,
      "nonLinearAdsList": [],
      "startTime": "PT39.339S",
      "startTimeInSeconds": 39.339
    }
  ],
  "dashAvailabilityStartTime": null,
  "hlsAnchorMediaSequenceNumber": null,
  "nextToken": "UFQzOS4zMzlTXzIwMjMtMDctMzFUMTY6NTQ6MDQuODA1Mzk2NTI5Wl8x",
  "nonLinearAvails": []
}{
  "avails": [
    {
      "adBreakTrackingEvents": [],
      "adMarkerDuration": null,
      "ads": [
        {
          "adId": "2922274",
          "adParameters": "",
          "adProgramDateTime": "2023-08-14T19:49:53.998Z",
          "adSystem": "Innovid Ads",
          "adTitle": "VPAID",
          "adVerifications": [],
          "companionAds": [],
          "creativeId": "",
          "creativeSequence": "",
          "duration": "PT16.016S",
          "durationInSeconds": 16.016,
          "extensions": [],
          "mediaFiles": {
            "mediaFilesList": [
              {
                "apiFramework": "VPAID",
                "bitrate": 0,
                "codec": null,
                "delivery": "progressive",
                "height": 9,
                "id": "",
                "maintainAspectRatio": false,
                "maxBitrate": 0,
                "mediaFileUri": "http://my-ads.com/mobileapps/js/vpaid/1h41kg?cb=178344c0-8e67-281a-58ca-962e4987cd60&deviceid=&ivc=",
                "mediaType": "application/javascript",
                "minBitrate": 0,
                "scalable": false,
                "width": 16
              }
            ],
            "mezzanine": "http://my-ads.com/mobileapps/js/vpaid/1h41kg?cb=178344c0-8e67-281a-58ca-962e4987cd60&deviceid=&ivc="
          },
          "skipOffset": null,
          "startTime": "PT8M42.289S",
          "startTimeInSeconds": 522.289,
          "trackingEvents": [
            {
              "beaconUrls": [
                "about:blank"
              ],
              "duration": "PT16.016S",
              "durationInSeconds": 16.016,
              "eventId": "2922274",
              "eventProgramDateTime": null,
              "eventType": "impression",
              "startTime": "PT8M42.289S",
              "startTimeInSeconds": 522.289
            }
          ],
          "vastAdId": "1h41kg"
        }
      ],
      "availId": "2922274",
      "availProgramDateTime": "2023-08-14T19:49:53.998Z",
      "duration": "PT16.016S",
      "durationInSeconds": 16.016,
      "meta": null,
      "nonLinearAdsList": [],
      "startTime": "PT8M42.289S",
      "startTimeInSeconds": 522.289
    }
  ],
  "dashAvailabilityStartTime": null,
  "hlsAnchorMediaSequenceNumber": null,
  "nextToken": "UFQ4TTQyLjI4OVNfMjAyMy0wOC0xNFQxOTo1MDo0MS4zOTc5MjAzODVaXzE%3D",
  "nonLinearAvails": []
}
```

## Google Why this Ad (WTA) 的图标
<a name="ad-reporting-client-side-ad-tracking-schema-player-controls-google-wta"></a>

*AdChoices*是一项行业标准，为观众提供有关他们看到的广告的信息，包括这些广告是如何针对他们的。

![谷歌为什么要投这个广告 (WTA) 标志。WTA 告知观众他们看到的广告，包括这些广告是如何针对他们的。](http://docs.aws.amazon.com/zh_cn/mediatailor/latest/ug/images/google-wta.png)


 MediaTailor 客户端跟踪 API 支持 VAST 响应的 VAST 扩展节点中携带的图标元数据。有关 VAST 响应中 WTA 的更多信息，请参阅[此 VAST XML 响应](https://storage.googleapis.com/interactive-media-ads/ad-tags/ima_wta_sample_vast_3.xml)示例。

**注意**  
MediaTailor 目前仅支持 VAST 版本 3。

```
<VAST>
    <Ad>  
    <InLine>  
       ...
      <Extensions>
        <Extension type="IconClickFallbackImages">
          <IconClickFallbackImages program="GoogleWhyThisAd">
            <IconClickFallbackImage width="400" height="150">
              <AltText>Alt icon fallback</AltText>
              <StaticResource creativeType="image/png"><![CDATA[{{https://storage.googleapis.com/interactive-media-ads/images/wta_dialog.png}}]]></StaticResource>
            </IconClickFallbackImage>
          </IconClickFallbackImages>
          <IconClickFallbackImages program="AdChoices">
            <IconClickFallbackImage width="400" height="150">
              <AltText>Alt icon fallback</AltText>
              <StaticResource creativeType="image/png"><![CDATA[{{https://storage.googleapis.com/interactive-media-ads/images/wta_dialog.png?size=1x}}]]></StaticResource>
            </IconClickFallbackImage>
            <IconClickFallbackImage width="800" height="300">
              <AltText>Alt icon fallback</AltText>
              <StaticResource creativeType="image/png"><![CDATA[{{https://storage.googleapis.com/interactive-media-ads/images/wta_dialog.png?size=2x}}]]></StaticResource>
            </IconClickFallbackImage>
          </IconClickFallbackImages>
        </Extension>
      </Extensions>
    </InLine>
  </Ad>
</VAST>
```

以下示例显示了列表中的客户端跟踪响应。`/avails/x/ads/y/extensions`

```
{
  "avails": [
    {
      "adBreakTrackingEvents": [],
      "adMarkerDuration": null,
      "ads": [
        {
          "adId": "0",
          "adParameters": "",
          "adProgramDateTime": null,
          "adSystem": "GDFP",
          "adTitle": "Google Why This Ad VAST 3 Sample",
          "adVerifications": [],
          "companionAds": [],
          "creativeId": "7891011",
          "creativeSequence": "1",
          "duration": "PT10S",
          "durationInSeconds": 10,
          "extensions": [
            {
              "content": "<IconClickFallbackImages program=\"GoogleWhyThisAd\">      
                          <IconClickFallbackImage height=\"150\" width=\"400\">      
                          <AltText>Alt icon fallback</AltText>      
                          <StaticResource creativeType=\"image/png\"><![CDATA[{{https://storage.googleapis.com/interactive-media-ads/images/wta_dialog.png}}]]>
                          </StaticResource>     
                          </IconClickFallbackImage>    
                          </IconClickFallbackImages>     
                          <IconClickFallbackImages program=\"AdChoices\">     
                          <IconClickFallbackImage height=\"150\" width=\"400\">     
                          <AltText>Alt icon fallback</AltText>       
                          <StaticResource creativeType=\"image/png\"><![CDATA[{{https://storage.googleapis.com/interactive-media-ads/images/wta_dialog.png?size=1x}}]]>
                          </StaticResource>      
                          </IconClickFallbackImage>      
                          <IconClickFallbackImage height=\"300\" width=\"800\">       
                          <AltText>Alt icon fallback</AltText>       
                          <StaticResource creativeType=\"image/png\"><![CDATA[{{https://storage.googleapis.com/interactive-media-ads/images/wta_dialog.png?size=2x}}]]>
                          </StaticResource>      
                          </IconClickFallbackImage>     
                          </IconClickFallbackImages>",
              "type": "IconClickFallbackImages"
            }
          ],
          "mediaFiles": {
            "mediaFilesList": [],
            "mezzanine": ""
          },
          "skipOffset": "00:00:03",
          "startTime": "PT0S",
          "startTimeInSeconds": 0,
          "trackingEvents": [
            {
              "beaconUrls": [
                "https://example.com/view"
              ],
              "duration": "PT10S",
              "durationInSeconds": 10,
              "eventId": "0",
              "eventProgramDateTime": null,
              "eventType": "impression",
              "startTime": "PT0S",
              "startTimeInSeconds": 0
            }
          ],
          "vastAdId": "123456"
        }
      ],
      "availId": "0",
      "availProgramDateTime": null,
      "duration": "PT10S",
      "durationInSeconds": 10,
      "meta": null,
      "nonLinearAdsList": [],
      "startTime": "PT0S",
      "startTimeInSeconds": 0
    }
  ],
  "dashAvailabilityStartTime": null,
  "hlsAnchorMediaSequenceNumber": null,
  "nextToken": "UFQxMFNfMjAyMy0wNy0wNlQyMDo0MToxNy45NDE4MDM0NDhaXzE%3D",
  "nonLinearAvails": []
}
```