bp_media_forums_embed_attachments( $content,  $id )

function bp_media_forums_embed_attachments( $content, $id ) {
	global $media_template;

	// Do not embed attachment in wp-admin area
	if ( is_admin() ) {
		return $content;
	}

	$media_ids = get_post_meta( $id, 'bp_media_ids', true );

	if ( ! empty( $media_ids ) && bp_has_media( array( 'include' => $media_ids, 'order_by' => 'menu_order', 'sort' => 'ASC' ) ) ) {
		ob_start();
		?>
        <div class="bb-activity-media-wrap forums-media-wrap <?php echo 'bb-media-length-' . $media_template->media_count; echo $media_template->media_count > 5 ? ' bb-media-length-more' : ''; ?>"><?php
		while ( bp_media() ) {
			bp_the_media();
			bp_get_template_part( 'media/activity-entry' );
		} ?>
        </div><?php
		$content .= ob_get_clean();
	}

	return $content;
}