diff --git a/Zotlabs/Lib/Activity.php b/Zotlabs/Lib/Activity.php
index 5c3002837..9df7db169 100644
--- a/Zotlabs/Lib/Activity.php
+++ b/Zotlabs/Lib/Activity.php
@@ -195,6 +195,13 @@ class Activity {
 				if(! $ev['nofinish']) {
 					$y['endTime'] = (($ev['adjust']) ? datetime_convert('UTC','UTC',$ev['dtend'], ATOM_TIME) : datetime_convert('UTC','UTC',$ev['dtend'],'Y-m-d\\TH:i:s-00:00'));
 				}
+				
+				// copy attachments from the passed object - these are already formatted for ActivityStreams
+
+				if($x['attachment']) {
+					$y['attachment'] = $x['attachment'];
+				}
+
 				if($actor) {
 					return $y;
 				}
@@ -404,7 +411,7 @@ class Activity {
 		$ret = [];
 
 		if($item['attach']) {
-			$atts = json_decode($item['attach'],true);
+			$atts = ((is_array($item['attach'])) ? $item['attach'] : json_decode($item['attach'],true));
 			if($atts) {
 				foreach($atts as $att) {
 					if(strpos($att['type'],'image')) {
@@ -416,7 +423,7 @@ class Activity {
 				}
 			}
 		}
-
+		
 		return $ret;
 	}
 
diff --git a/Zotlabs/Module/Linkinfo.php b/Zotlabs/Module/Linkinfo.php
index 32b4c0281..b9f90deec 100644
--- a/Zotlabs/Module/Linkinfo.php
+++ b/Zotlabs/Module/Linkinfo.php
@@ -69,6 +69,14 @@ class Linkinfo extends \Zotlabs\Web\Controller {
 					killme();
 				}
 				if(stripos($type,'video/') !== false) {
+					$thumb = self::get_video_poster($url);
+					if($thumb) {
+						if ($zrl)
+							echo $br . '[zvideo poster=\'' . $thumb . '\']' . $url . '[/zvideo]' . $br;
+						else
+							echo $br . '[video poster=\'' . $thumb . '\']' . $url . '[/video]' . $br;
+						killme();
+					}
 					if($zrl)
 						echo $br . '[zvideo]' . $url . '[/zvideo]' . $br;
 					else
@@ -216,7 +224,42 @@ class Linkinfo extends \Zotlabs\Web\Controller {
 	
 	        return($complete);
 	}
-	
+
+	public static function get_video_poster($url) {
+
+		if(strpos($url,z_root() . '/cloud/') === false) {
+			return EMPTY_STR;
+		}
+		$m = parse_url($url,PHP_URL_PATH);
+		if($m) {
+			// strip leading '/cloud/'
+			$m = substr($m,7);
+		}
+		$nick = substr($m,0,strpos($m,'/'));
+		$p = substr($m,strpos($m,'/')+1);
+
+		// get the channel to check permissions
+		
+		$u = channelx_by_nick($nick);
+
+		if($u && $p) {
+
+			$sql_extra = permissions_sql(intval($u['channel_id']));
+
+			$r = q("select hash, content from attach where display_path = '%s' and uid = %d and os_storage = 1 $sql_extra limit 1",
+				dbesc($p),
+				intval($u['channel_id'])
+			);
+			if($r) {
+				$path = dbunescbin($r[0]['content']);
+				if($path && @file_exists($path . '.thumb')) {
+					return z_root() . '/poster/' . $nick . '/' . $r[0]['hash'];
+				}
+			}
+		}
+		return EMPTY_STR;
+	}
+
 	
 	public static function parseurl_getsiteinfo($url) {
 		$siteinfo = array();
diff --git a/Zotlabs/Module/Poster.php b/Zotlabs/Module/Poster.php
new file mode 100644
index 000000000..10317ee61
--- /dev/null
+++ b/Zotlabs/Module/Poster.php
@@ -0,0 +1,37 @@
+<?php
+
+namespace Zotlabs\Module;
+
+use Zotlabs\Web\Controller;
+
+require_once('include/security.php');
+
+class Poster extends Controller {
+
+	function init() {
+
+		$nick = argv(1);
+		$hash = argv(2);
+
+		if(! ($nick && $hash)) {
+			return;
+		}
+
+		$u = channelx_by_nick($nick);
+
+		$sql_extra = permissions_sql(intval($u['channel_id']));
+
+		$r = q("select content from attach where hash = '%s' and uid = %d and os_storage = 1 $sql_extra limit 1",
+			dbesc($hash),
+			intval($u['channel_id'])
+		);
+		if($r) {
+			$path = dbunescbin($r[0]['content']);
+			if($path && @file_exists($path . '.thumb')) {
+				header('Content-Type: image/jpeg');
+				echo file_get_contents($path . '.thumb');
+				killme();
+			}
+		}
+	}
+}
diff --git a/Zotlabs/Module/Wall_attach.php b/Zotlabs/Module/Wall_attach.php
index 2250e6e44..0ede3ad90 100644
--- a/Zotlabs/Module/Wall_attach.php
+++ b/Zotlabs/Module/Wall_attach.php
@@ -96,9 +96,26 @@ class Wall_attach extends \Zotlabs\Web\Controller {
 			$s = "\n\n" . $r['body'] . "\n\n";
 		}
 		else {
-			$s =  "\n\n" . '[attachment]' . $r['data']['hash'] . ',' . $r['data']['revision'] . '[/attachment]' . "\n";
+			if(strpos($r['data']['filetype'],'video') === 0) {
+				// give a wee bit of time for the background thumbnail processor to do its thing
+				// or else we'll never see a video poster
+				sleep(3);
+				$url = z_root() . '/cloud/' . $channel['channel_address'] . '/' . $r['data']['display_path'];
+				$thumb = Linkinfo::get_video_poster($url);
+				if($thumb) {
+					$s = "\n\n" . '[zvideo poster=\'' . $thumb . '\']' . $url . '[/zvideo]' . "\n\n";
+				}
+				else {
+					$s = "\n\n" . '[zvideo]' . $url . '[/zvideo]' . "\n\n";
+				}
+			}
+			if(strpos($r['data']['filetype'],'audio') === 0) {
+				$url = z_root() . '/cloud/' . $channel['channel_address'] . '/' . $r['data']['display_path'];
+				echo "\n\n" . '[zaudio]' . $url . '[/zaudio]' . "\n\n";
+			}
+			
+			$s .=  "\n\n" . '[attachment]' . $r['data']['hash'] . ',' . $r['data']['revision'] . '[/attachment]' . "\n";
 		}
-	
 
 		$sync = attach_export_data($channel,$r['data']['hash']);
 		if($sync) {