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Merge branch 'master' of https://github.com/dcloudio/uni-app
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Wangyaqi committed Mar 23, 2020
2 parents fc2edd4 + beb2783 commit b5881ef
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1 change: 1 addition & 0 deletions docs/api/_sidebar.md
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* [相机组件控制](api/media/camera-context.md)
* [直播组件控制](api/media/live-player-context.md)
* [富文本](api/media/editor-context.md)
* [音视频合成](api/media/media-container.md)
* 设备
* [系统信息](api/system/info.md)
* [内存](api/system/memory.md)
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4 changes: 3 additions & 1 deletion docs/api/location/location.md
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**OBJECT 参数说明**

|参数名|类型|必填|说明|
|:-|:-|:-|:-|
|:-|:-|:-|:-|
|latitude|String||目标地纬度,仅微信小程序2.9.0+支持|
|longitude|String||目标地经度,仅微信小程序2.9.0+支持|
|keyword|String||搜索关键字,仅App平台支持|
|success|Function||接口调用成功的回调函数,返回内容详见返回参数说明。|
|fail|Function||接口调用失败的回调函数(获取定位失败、用户取消等情况下触发)|
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55 changes: 55 additions & 0 deletions docs/api/media/media-container.md
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### uni.createMediaContainer()
创建音视频处理容器,最终可将容器中的轨道合成一个视频 ,返回 `MediaContainer` 对象

**平台差异说明**

|App|H5|微信小程序|支付宝小程序|百度小程序|字节跳动小程序|QQ小程序|
|:-:|:-:|:-:|:-:|:-:|:-:|:-:|
|x|x|2.9.0+|x|x|x|x|

#### MediaContainer.addTrack(track)
将音频或视频轨道添加到容器

**参数说明**

|参数|说明|
|:-|:-|
|track|要添加的音频或视频轨道|

#### MediaContainer.destroy()
将容器销毁,释放资源

#### MediaContainer.export()
将容器内的轨道合并并导出视频文件

#### MediaContainer.extractDataSource(object)
将容器内的轨道合并并导出视频文件 ,返回 `MediaTrack` 对象

**参数说明**

|属性|类型|必填 |说明|
|:-|:-|:-|:-|
|source|String||视频源地址,只支持本地文件|

#### MediaContainer.removeTrack(track)
将音频或视频轨道添加到容器

**参数说明**

|参数|说明|
|:-|:-|
|track|要移除的音频或视频轨道|


### MediaTrack
可通过 `MediaContainer.extractDataSource` 返回。

`MediaTrack` 音频或视频轨道,可以对轨道进行一些操作

**参数说明**

|属性|类型|说明|
|:-|:-|:-|
|kind|String|轨道类型,只读 ,audio:音频轨道;video:视频轨道 |
|duration|Number|轨道长度,只读 |
|volume|Number|音量,音频轨道下有效,可写 |

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