harmony 鸿蒙OH_AVCodecCallback

2025-06-12
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OH_AVCodecCallback

Overview

The OH_AVCodecCallback struct defines all the asynchronous callback function pointers of an OH_AVCodec instance. To ensure the normal running of OH_AVCodec, you must register the instance of this struct with the OH_AVCodec instance and process the information reported by the callback function.

For details about the development guide, see step 4 in surface mode or step 3 in buffer mode in Video Encoding.

System capability: SystemCapability.Multimedia.Media.CodecBase

Since: 11

Related module: CodecBase

Header file: native_avcodec_base.h

Summary

Member Variables

Name	Description
OH_AVCodecOnError onError	Defines the callback used to report a codec operation error.
OH_AVCodecOnStreamChanged onStreamChanged	Defines the callback used to report a codec stream change.
OH_AVCodecOnNeedInputBuffer onNeedInputBuffer	Defines the callback used to report input data required.
OH_AVCodecOnNewOutputBuffer onNewOutputBuffer	Defines the callback used to report output data generated.