Skip to main content

OH_VideoDecoder_SetCallback

ohos_media_sys::avcodec_videodecoder

Function OH_VideoDecoder_SetCallback 

Source 
pub unsafe extern "C" fn OH_VideoDecoder_SetCallback(
    codec: *mut OH_AVCodec,
    callback: OH_AVCodecAsyncCallback,
    userData: *mut c_void,
) -> OH_AVErrCode
👎Deprecated since 11
Expand description

Set the asynchronous callback function so that your application can respond to the events generated by the video decoder. This interface must be called before Prepare is called.

Required System Capabilities: SystemCapability.Multimedia.Media.VideoDecoder

§Arguments

  • codec - Pointer to an OH_AVCodec instance

  • callback - A collection of all callback functions, see OH_AVCodecAsyncCallback

  • userData - User specific data

§Returns

  • Returns AV_ERR_OK if the execution is successful, otherwise returns a specific error code, refer to OH_AVErrCode. [AV_ERR_NO_MEMORY], inner resource has already released. [AV_ERR_INVALID_VAL], the decoder is nullptr or invalid. [AV_ERR_UNKNOWN], unknown error. [AV_ERR_SERVICE_DIED], avcodec service is died. [AV_ERR_INVALID_STATE], this interface was called in invalid state, must be called before Prepare.

Deprecated since 11 OH_VideoDecoder_RegisterCallback

Available since API-level: 9