1# media_asset_capi.h 2 3 4## Overview 5 6Defines the APIs related to media assets. 7 8You can use the APIs to obtain image or video information. 9 10**System capability**: SystemCapability.FileManagement.PhotoAccessHelper.Core 11 12**Library**: libmedia_asset_manager.so 13 14**File to include**: <multimedia/media_library/media_asset_capi.h> 15 16**Since**: 12 17 18**Related module**: [MediaAssetManager](_media_asset_manager.md) 19 20 21## Summary 22 23 24### Functions 25 26| Name| Description| 27| -------- | -------- | 28| [MediaLibrary_ErrorCode](_media_asset_manager.md#medialibrary_errorcode) [OH_MediaAsset_GetUri](_media_asset_manager.md#oh_mediaasset_geturi) ([OH_MediaAsset](_media_asset_manager.md#oh_mediaasset) \*mediaAsset, const char \*\*uri) | Obtains the URI of a media asset.| 29| [MediaLibrary_ErrorCode](_media_asset_manager.md#medialibrary_errorcode) [OH_MediaAsset_GetDisplayName](_media_asset_manager.md#oh_mediaasset_getdisplayname) ([OH_MediaAsset](_media_asset_manager.md#oh_mediaasset) \*mediaAsset, const char \*\*displayName) | Obtains the displayed name of a media asset.| 30| [MediaLibrary_ErrorCode](_media_asset_manager.md#medialibrary_errorcode) [OH_MediaAsset_GetSize](_media_asset_manager.md#oh_mediaasset_getsize) ([OH_MediaAsset](_media_asset_manager.md#oh_mediaasset) \*mediaAsset, uint32_t \*size) | Obtains the size of a media asset file.| 31| [MediaLibrary_ErrorCode](_media_asset_manager.md#medialibrary_errorcode) [OH_MediaAsset_GetDateModifiedMs](_media_asset_manager.md#oh_mediaasset_getdatemodifiedms) ([OH_MediaAsset](_media_asset_manager.md#oh_mediaasset) \*mediaAsset, uint32_t \*dateModifiedMs) | Obtains the media asset modification time, in ms.| 32| [MediaLibrary_ErrorCode](_media_asset_manager.md#medialibrary_errorcode) [OH_MediaAsset_GetWidth](_media_asset_manager.md#oh_mediaasset_getwidth) ([OH_MediaAsset](_media_asset_manager.md#oh_mediaasset) \*mediaAsset, uint32_t \*width) | Obtains the image width (in pixels) of a media asset.| 33| [MediaLibrary_ErrorCode](_media_asset_manager.md#medialibrary_errorcode) [OH_MediaAsset_GetHeight](_media_asset_manager.md#oh_mediaasset_getheight) ([OH_MediaAsset](_media_asset_manager.md#oh_mediaasset) \*mediaAsset, uint32_t \*height) | Obtains the image height (in pixels) of a media asset.| 34| [MediaLibrary_ErrorCode](_media_asset_manager.md#medialibrary_errorcode) [OH_MediaAsset_GetOrientation](_media_asset_manager.md#oh_mediaasset_getorientation) ([OH_MediaAsset](_media_asset_manager.md#oh_mediaasset) \*mediaAsset, uint32_t \*orientation) | Obtains the orientation of a media asset, in degrees.| 35| [MediaLibrary_ErrorCode](_media_asset_manager.md#medialibrary_errorcode) [OH_MediaAsset_Release](_media_asset_manager.md#oh_mediaasset_release) ([OH_MediaAsset](_media_asset_manager.md#oh_mediaasset) \*mediaAsset) | Releases a media asset.| 36