Function ges_ pipeline_ set_ mode 
Source pub unsafe extern "C" fn ges_pipeline_set_mode(
    pipeline: *mut GESPipeline,
    mode: GESPipelineFlags,
) -> gbooleanpub unsafe extern "C" fn ges_pipeline_set_mode(
    pipeline: *mut GESPipeline,
    mode: GESPipelineFlags,
) -> gboolean