harmony 鸿蒙Multimedia Subsystem Changelog

2025-06-12
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Multimedia Subsystem Changelog

c1.multimedia.1 API Behavior of OH_VideoDecoder_Configure and OH_VideoEncoder_Configure Changed

Access Level

Public API

Reason for Change

The parameters passed by the encoder to the Configure API are not verified. In some scenarios, invalid values are passed in, causing effect-related issues. Parameter verification should be added to ensure that the parameters used during encoding or decoding meet the codec capabilities and requirements.

Change Impact

This change is a compatibility change. If an incorrect parameter is passed in to the Configure API, an error is thrown.

For details about the decoder parameter verification logic, see OH_VideoDecoder_Configure().

For details about the encoder parameter verification logic, see OH_VideoEncoder_Configure().

Start API Level

API version 9

Change Since

OpenHarmony SDK 5.0.0.22

Key API/Component Changes

Name	Description
OH_VideoDecoder_Configure	An error is thrown if an invalid parameter is passed in.
OH_VideoEncoder_Configure	An error is thrown if an invalid parameter is passed in.

Adaptation Guide

You can use the codec capability query interface to obtain the encoder parameter ranges. For details, see Obtaining Supported Codecs.

c1.multimedia.1 API Behavior of OH_AVFormat Set Changed

Access Level

Public API

Reason for Change

OH_AVFormat supports multiple types of parameters (int, long, float, double, string, and buffer). When an incorrect Set API is called to pass in a value, no error is reported. Consequently, related functional modules cannot obtain the corresponding parameters, causing effect-related issues. Parameter type verification logic should be added to the Set API to ensure correct parameter settings.

Change Impact

This change is a compatibility change. The Set API returns false only when it is incorrectly called.

Start API Level

API version 9

Change Since

OpenHarmony SDK 5.0.0.22

Key API/Component Changes

Name	Description
OH_AVFormat_SetIntValue	If this API is called to set a parameter of the non-int type, an error is reported.
OH_AVFormat_SetLongValue	If this API is called to set a parameter of the non-long type, an error is reported.
OH_AVFormat_SetFloatValue	If this API is called to set a parameter of the non-float type, an error is reported.
OH_AVFormat_SetDoubleValue	If this API is called to set a parameter of the non-double type, an error is reported.
OH_AVFormat_SetStringValue	If this API is called to set a parameter of the non-string type, an error is reported.
OH_AVFormat_SetBuffer	If this API is called to set a parameter of the non-buffer type, an error is reported.