harmony 鸿蒙avmetadata_extractor.h

avmetadata_extractor.h

The avmetadata_extractor.h file declares the AVMetadataExtractor APIs. With these native APIs, you can obtain metadata from media assets.

System capability: SystemCapability.Multimedia.Media.AVMetadataExtractor

Library: libavmetadata_extractor.so

Since: 18

Related module: AVMetadataExtractor

Name	Description
typedef struct OH_AVMetadataExtractor OH_AVMetadataExtractor	Defines a struct for the OH_AVMetadataExtractor.

Name	Description
OH_AVMetadataExtractor * OH_AVMetadataExtractor_Create (void)	Creates an OH_AVMetadataExtractor instance.
OH_AVErrCode OH_AVMetadataExtractor_SetFDSource (OH_AVMetadataExtractor *extractor, int32_t fd, int64_t offset, int64_t size)	Sets a data source based on the media file descriptor.
OH_AVErrCode OH_AVMetadataExtractor_FetchMetadata (OH_AVMetadataExtractor extractor, OH_AVFormat avMetadata)	Obtains metadata from a media asset. This function must be called after SetFDSource.
OH_AVErrCode OH_AVMetadataExtractor_FetchAlbumCover (OH_AVMetadataExtractor extractor, OH_PixelmapNative *pixelMap)	Obtains the cover of an audio album. This function must be called after SetFDSource.
OH_AVErrCode OH_AVMetadataExtractor_Release (OH_AVMetadataExtractor *extractor)	Releases the resources used by the OH_AVMetadataExtractor instance and destroys the instance.