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OH_VideoProcessing_Start

ohos_video_processing_engine_sys::video_processing

Function OH_VideoProcessing_Start 

Source 
pub unsafe extern "C" fn OH_VideoProcessing_Start(
    videoProcessor: *mut OH_VideoProcessing,
) -> VideoProcessing_ErrorCode
Available on crate features api-12 and video-processing only.
Expand description

Start video processing instance.

After successfully calling this function, the state [VIDEO_PROCESSING_STATE_RUNNING] is reported by callback function OH_VideoProcessingCallback_OnState.

§Arguments

  • videoProcessor - A video processing instance pointer.

§Returns

  • [VIDEO_PROCESSING_SUCCESS] if the operation is successful.

[VIDEO_PROCESSING_ERROR_INVALID_INSTANCE] if instance is null or not a video processing instance.

[VIDEO_PROCESSING_ERROR_OPERATION_NOT_PERMITTED] if output surface is not set, input surface is not created or instance is already running.

Available since API-level: 12