bp_media_allowed_upload_document_size()

function bp_media_allowed_upload_document_size() {
	$max_size = bp_core_upload_max_size();
	$default  =  bp_document_format_size_units( $max_size, false, 'MB' );
	return (int) apply_filters( 'bp_media_allowed_upload_document_size', (int) get_option( 'bp_document_allowed_size', $default ) );
}