harmony 鸿蒙avimage_generator.h

2025-06-12
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avimage_generator.h

Overview

The avimage_generator.h file declares the AVImageGenerator APIs. With these native APIs, you can extract video frames at given time points from videos.

System capability: SystemCapability.Multimedia.Media.AVImageGenerator

Library: libavimage_generator.so

Since: 18

Related module: AVImageGenerator

Summary

Types

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

Functions

Name	Description
OH_AVImageGenerator * OH_AVImageGenerator_Create (void)	Creates an OH_AVImageGenerator instance.
OH_AVErrCode OH_AVImageGenerator_SetFDSource (OH_AVImageGenerator *generator, int32_t fd, int64_t offset, int64_t size)	Sets a data source based on the media file descriptor.
OH_AVErrCode OH_AVImageGenerator_FetchFrameByTime (OH_AVImageGenerator generator, int64_t timeUs, OH_AVImageGenerator_QueryOptions options, OH_PixelmapNative *pixelMap)	Extracts a video frame at a given time from a video.
OH_AVErrCode OH_AVImageGenerator_Release (OH_AVImageGenerator *generator)	Releases the resources used by the OH_AVImageGenerator instance and destroys the instance.