1e41f4b71Sopenharmony_ci# media_asset_capi.h 2e41f4b71Sopenharmony_ci 3e41f4b71Sopenharmony_ci 4e41f4b71Sopenharmony_ci## Overview 5e41f4b71Sopenharmony_ci 6e41f4b71Sopenharmony_ciDefines the APIs related to media assets. 7e41f4b71Sopenharmony_ci 8e41f4b71Sopenharmony_ciYou can use the APIs to obtain image or video information. 9e41f4b71Sopenharmony_ci 10e41f4b71Sopenharmony_ci**System capability**: SystemCapability.FileManagement.PhotoAccessHelper.Core 11e41f4b71Sopenharmony_ci 12e41f4b71Sopenharmony_ci**Library**: libmedia_asset_manager.so 13e41f4b71Sopenharmony_ci 14e41f4b71Sopenharmony_ci**File to include**: <multimedia/media_library/media_asset_capi.h> 15e41f4b71Sopenharmony_ci 16e41f4b71Sopenharmony_ci**Since**: 12 17e41f4b71Sopenharmony_ci 18e41f4b71Sopenharmony_ci**Related module**: [MediaAssetManager](_media_asset_manager.md) 19e41f4b71Sopenharmony_ci 20e41f4b71Sopenharmony_ci 21e41f4b71Sopenharmony_ci## Summary 22e41f4b71Sopenharmony_ci 23e41f4b71Sopenharmony_ci 24e41f4b71Sopenharmony_ci### Functions 25e41f4b71Sopenharmony_ci 26e41f4b71Sopenharmony_ci| Name| Description| 27e41f4b71Sopenharmony_ci| -------- | -------- | 28e41f4b71Sopenharmony_ci| [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.| 29e41f4b71Sopenharmony_ci| [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.| 30e41f4b71Sopenharmony_ci| [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.| 31e41f4b71Sopenharmony_ci| [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.| 32e41f4b71Sopenharmony_ci| [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.| 33e41f4b71Sopenharmony_ci| [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.| 34e41f4b71Sopenharmony_ci| [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.| 35e41f4b71Sopenharmony_ci| [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