| SOURCE_TYPE_VOICE_COMMUNICATION | 7 | Voice communication source.<br>This API is defined but not implemented in OpenHarmony 3.1 Release. It will be available for use in OpenHarmony 3.1 MR.|
| SOURCE_TYPE_VOICE_COMMUNICATION | 7 | Voice communication source.|
Subscribes to audio interruption events. When the application's audio is interrupted by another playback event, the application will receive the callback.
This API is defined but not implemented in OpenHarmony 3.1 Release. It will be available for use in OpenHarmony 3.1 MR.
| type | string | Yes | Type of event to subscribe to. The value **interrupt** means the audio interruption event, which is triggered when the audio playback of the current application is interrupted by another application.|
| type | string | Yes | Type of event to unsubscribe from. The value **interrupt** means the audio interruption event, which is triggered when the audio playback of the current application is interrupted by another application.|
Provides APIs for audio rendering. Before calling any API in **AudioRenderer**, you must use [createAudioRenderer](#audiocreateaudiorenderer8) to create an **AudioRenderer** instance.
Provides APIs for audio capture. Before calling any API in **AudioCapturer**, you must use [createAudioCapturer](#audiocreateaudiocapturer8) to create an **AudioCapturer** instance.
| type | string | Yes | Type of event to subscribe to. The value **periodReach** means the period reached event, which is triggered when the period of frame capturing reaches the value of the **frame** parameter.|
| frame | number | Yes | Number of frames to trigger the event. The value must be greater than **0**. |
| frame | number | Yes | Period during which frame rendering is listened. The value must be greater than **0**. |
| callback | (position: number) => {} | Yes | Callback invoked when the event is triggered. |
| Promise<Array\<ArrayBuffer>> | Promise used to return the packed data.|
| Promise\<ArrayBuffer> | Promise used to return the packed data.|
**Example**
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@@ -957,7 +958,7 @@ Describes area information in an image.
| pixels | ArrayBuffer | Yes | No | Pixels of the image. |
| offset | number | Yes | No | Offset for data reading. |
| stride | number | Yes | No | Number of bytes from one row of pixels in memory to the next row of pixels in memory. The value of **stride** must be greater than or equal to the value of **region.size.width** multiplied by 4. |
| region | [Region](#region8) | Yes | No | Region to read or write. The width of the region to write plus the X coordinate cannot be greater than the width of the original image. The height of the region to write plus the Y coordinate cannot be greater than the height of the original image.|
| region | [Region](#region7) | Yes | No | Region to read or write. The width of the region to write plus the X coordinate cannot be greater than the width of the original image. The height of the region to write plus the Y coordinate cannot be greater than the height of the original image.|
Starts image preview, with the first image to preview specified. This API can be used to preview local images whose URIs start with **dataability://** or online images whose URIs start with **https://**. It uses an asynchronous callback to return the execution result.
This API is defined but not implemented in OpenHarmony 3.1 Release. It will be available for use in OpenHarmony 3.1 MR.
> **NOTE**<br>This API is deprecated since API version 9.
Starts image preview. This API can be used to preview local images whose URIs start with **dataability://** or online images whose URIs start with **https://**. It uses an asynchronous callback to return the execution result.
This API is defined but not implemented in OpenHarmony 3.1 Release. It will be available for use in OpenHarmony 3.1 MR.
> **NOTE**<br>This API is deprecated since API version 9.
Starts image preview, with the first image to preview specified. This API can be used to preview local images whose URIs start with dataability:// or online images whose URIs start with https://. It uses a promise to return the execution result.
This API is defined but not implemented in OpenHarmony 3.1 Release. It will be available for use in OpenHarmony 3.1 MR.
> **NOTE**<br>This API is deprecated since API version 9.
Closes this file asset. This API uses a promise to return the result.
**Required permissions**: ohos.permission.READ_MEDIA (when **mode** is set to **r**) and ohos.permission.WRITE_MEDIA (when **mode** is set to **w**)
**Required permissions**: ohos.permission.READ_MEDIA (when **mode** is set to **'r'**) and ohos.permission.WRITE_MEDIA (when **mode** is set to **'w'**)
| selections | string | Yes | Yes | Yes | Conditions for fetching files. The enumerated values in [FileKey](#filekey8) are used as the column names of the conditions. Example:<br>selections: mediaLibrary.FileKey.MEDIA_TYPE + '= ? OR' +mediaLibrary.FileKey.MEDIA_TYPE + '= ?',|
| selectionArgs | Array<string> | Yes | Yes | Yes | Value of the condition, which corresponds to the value of the condition column in **selections**.<br>Example:<br>selectionArgs: [mediaLibrary.MediaType.IMAGE.toString(), mediaLibrary.MediaType.VIDEO.toString()], |
| order<sup>8+</sup> | string | Yes | Yes | No | Sorting mode of the search results, which can be ascending or descending. The enumerated values in [FileKey](#filekey8) are used as the columns for sorting the search results. Example:<br>Ascending: order: mediaLibrary.FileKey.DATE_ADDED + " AESC"<br>Descending: order: mediaLibrary.FileKey.DATE_ADDED + " DESC"|
| order | string | Yes | Yes | No | Sorting mode of the search results, which can be ascending or descending. The enumerated values in [FileKey](#filekey8) are used as the columns for sorting the search results. Example:<br>Ascending: order: mediaLibrary.FileKey.DATE_ADDED + " AESC"<br>Descending: order: mediaLibrary.FileKey.DATE_ADDED + " DESC"|
| src | string | Yes | Application sandbox oath of the local file. |
| mimeType | string | Yes | Multipurpose Internet Mail Extensions (MIME) type of the media.<br>The value can be 'image/\*', 'video/\*', 'audio/\*' or 'file\*'.|
| relativePath | string | No | Custom path for storing media assets, for example, 'Pictures/'. If this parameter is unspecified, media assets are stored in the default path.<br> Default path of images: 'Pictures/'<br> Default path of videos: 'Videos/'<br> Default path of audios: 'Audios/'<br> Default path of files: 'Documents/'|
## MediaSelectOption
## MediaSelectOption<sup>(deprecated)</sup>
Describes media selection option.
This API is defined but not implemented in OpenHarmony 3.1 Release. It will be available for use in OpenHarmony 3.1 MR.
> **NOTE**<br>This API is deprecated since API version 9.
| type | string | Yes | Media type, which can be **image**, **media**, or **video**. Currently, only **media** is supported.|
| count | number | Yes | Number of media assets selected. If **count** is set to **1**, one media asset can be selected. If **count** is greater than **1**, multiple media assets can be selected. |
| count | number | Yes | Number of media assets selected. The value starts from 1, which indicates that one media asset can be selected. |
