diff --git a/Gemfile b/Gemfile
index dbdab7cc20..33f9374cf1 100644
--- a/Gemfile
+++ b/Gemfile
@@ -21,6 +21,7 @@ gem 'fog-openstack', '~> 0.1', require: false
 gem 'paperclip', '~> 5.1'
 gem 'paperclip-av-transcoder', '~> 0.6'
 gem 'posix-spawn'
+gem 'streamio-ffmpeg', '~> 3.0'
 
 gem 'active_model_serializers', '~> 0.10'
 gem 'addressable', '~> 2.5'
diff --git a/Gemfile.lock b/Gemfile.lock
index 99acf91bf7..d4ebd0a404 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -550,6 +550,8 @@ GEM
       net-scp (>= 1.1.2)
       net-ssh (>= 2.8.0)
     statsd-ruby (1.2.1)
+    streamio-ffmpeg (3.0.2)
+      multi_json (~> 1.8)
     strong_migrations (0.1.9)
       activerecord (>= 3.2.0)
     temple (0.8.0)
@@ -712,6 +714,7 @@ DEPENDENCIES
   simple_form (~> 3.4)
   simplecov (~> 0.14)
   sprockets-rails (~> 3.2)
+  streamio-ffmpeg (~> 3.0)
   strong_migrations
   tty-command
   tty-prompt
diff --git a/app/controllers/media_controller.rb b/app/controllers/media_controller.rb
index f652f5acef..88c7232dd8 100644
--- a/app/controllers/media_controller.rb
+++ b/app/controllers/media_controller.rb
@@ -3,20 +3,26 @@
 class MediaController < ApplicationController
   include Authorization
 
-  before_action :verify_permitted_status
+  before_action :set_media_attachment
+  before_action :verify_permitted_status!
 
   def show
-    redirect_to media_attachment.file.url(:original)
+    redirect_to @media_attachment.file.url(:original)
+  end
+
+  def player
+    @body_classes = 'player'
+    raise ActiveRecord::RecordNotFound unless @media_attachment.video? || @media_attachment.gifv?
   end
 
   private
 
-  def media_attachment
-    MediaAttachment.attached.find_by!(shortcode: params[:id])
+  def set_media_attachment
+    @media_attachment = MediaAttachment.attached.find_by!(shortcode: params[:id] || params[:medium_id])
   end
 
-  def verify_permitted_status
-    authorize media_attachment.status, :show?
+  def verify_permitted_status!
+    authorize @media_attachment.status, :show?
   rescue Mastodon::NotPermittedError
     # Reraise in order to get a 404 instead of a 403 error code
     raise ActiveRecord::RecordNotFound
diff --git a/app/javascript/mastodon/components/media_gallery.js b/app/javascript/mastodon/components/media_gallery.js
index a276b17d51..00943e205b 100644
--- a/app/javascript/mastodon/components/media_gallery.js
+++ b/app/javascript/mastodon/components/media_gallery.js
@@ -249,7 +249,7 @@ export default class MediaGallery extends React.PureComponent {
       }
 
       children = (
-        <button className='media-spoiler' onClick={this.handleOpen} style={style} ref={this.handleRef}>
+        <button type='button' className='media-spoiler' onClick={this.handleOpen} style={style} ref={this.handleRef}>
           <span className='media-spoiler__warning'>{warning}</span>
           <span className='media-spoiler__trigger'><FormattedMessage id='status.sensitive_toggle' defaultMessage='Click to view' /></span>
         </button>
diff --git a/app/javascript/mastodon/features/status/components/card.js b/app/javascript/mastodon/features/status/components/card.js
index 2f6a7831e9..b52f3c4faf 100644
--- a/app/javascript/mastodon/features/status/components/card.js
+++ b/app/javascript/mastodon/features/status/components/card.js
@@ -20,6 +20,39 @@ const getHostname = url => {
   return parser.hostname;
 };
 
+const trim = (text, len) => {
+  const cut = text.indexOf(' ', len);
+
+  if (cut === -1) {
+    return text;
+  }
+
+  return text.substring(0, cut) + (text.length > len ? '…' : '');
+};
+
+const domParser = new DOMParser();
+
+const addAutoPlay = html => {
+  const document = domParser.parseFromString(html, 'text/html').documentElement;
+  const iframe = document.querySelector('iframe');
+
+  if (iframe) {
+    if (iframe.src.indexOf('?') !== -1) {
+      iframe.src += '&';
+    } else {
+      iframe.src += '?';
+    }
+
+    iframe.src += 'autoplay=1&auto_play=1';
+
+    // DOM parser creates html/body elements around original HTML fragment,
+    // so we need to get innerHTML out of the body and not the entire document
+    return document.querySelector('body').innerHTML;
+  }
+
+  return html;
+};
+
 export default class Card extends React.PureComponent {
 
   static propTypes = {
@@ -33,9 +66,16 @@ export default class Card extends React.PureComponent {
   };
 
   state = {
-    width: 0,
+    width: 280,
+    embedded: false,
   };
 
+  componentWillReceiveProps (nextProps) {
+    if (this.props.card !== nextProps.card) {
+      this.setState({ embedded: false });
+    }
+  }
+
   handlePhotoClick = () => {
     const { card, onOpenMedia } = this.props;
 
@@ -57,56 +97,14 @@ export default class Card extends React.PureComponent {
     );
   };
 
-  renderLink () {
-    const { card, maxDescription } = this.props;
-    const { width }  = this.state;
-    const horizontal = card.get('width') > card.get('height') && (card.get('width') + 100 >= width);
-
-    let image    = '';
-    let provider = card.get('provider_name');
-
-    if (card.get('image')) {
-      image = (
-        <div className='status-card__image'>
-          <img src={card.get('image')} alt={card.get('title')} className='status-card__image-image' width={card.get('width')} height={card.get('height')} />
-        </div>
-      );
-    }
-
-    if (provider.length < 1) {
-      provider = decodeIDNA(getHostname(card.get('url')));
-    }
-
-    const className = classnames('status-card', { horizontal });
-
-    return (
-      <a href={card.get('url')} className={className} target='_blank' rel='noopener' ref={this.setRef}>
-        {image}
-
-        <div className='status-card__content'>
-          <strong className='status-card__title' title={card.get('title')}>{card.get('title')}</strong>
-          {!horizontal && <p className='status-card__description'>{(card.get('description') || '').substring(0, maxDescription)}</p>}
-          <span className='status-card__host'>{provider}</span>
-        </div>
-      </a>
-    );
-  }
-
-  renderPhoto () {
+  handleEmbedClick = () => {
     const { card } = this.props;
 
-    return (
-      <img
-        className='status-card-photo'
-        onClick={this.handlePhotoClick}
-        role='button'
-        tabIndex='0'
-        src={card.get('embed_url')}
-        alt={card.get('title')}
-        width={card.get('width')}
-        height={card.get('height')}
-      />
-    );
+    if (card.get('type') === 'photo') {
+      this.handlePhotoClick();
+    } else {
+      this.setState({ embedded: true });
+    }
   }
 
   setRef = c => {
@@ -117,7 +115,7 @@ export default class Card extends React.PureComponent {
 
   renderVideo () {
     const { card }  = this.props;
-    const content   = { __html: card.get('html') };
+    const content   = { __html: addAutoPlay(card.get('html')) };
     const { width } = this.state;
     const ratio     = card.get('width') / card.get('height');
     const height    = card.get('width') > card.get('height') ? (width / ratio) : (width * ratio);
@@ -125,7 +123,7 @@ export default class Card extends React.PureComponent {
     return (
       <div
         ref={this.setRef}
-        className='status-card-video'
+        className='status-card__image status-card-video'
         dangerouslySetInnerHTML={content}
         style={{ height }}
       />
@@ -133,23 +131,76 @@ export default class Card extends React.PureComponent {
   }
 
   render () {
-    const { card } = this.props;
+    const { card, maxDescription } = this.props;
+    const { width, embedded }      = this.state;
 
     if (card === null) {
       return null;
     }
 
-    switch(card.get('type')) {
-    case 'link':
-      return this.renderLink();
-    case 'photo':
-      return this.renderPhoto();
-    case 'video':
-      return this.renderVideo();
-    case 'rich':
-    default:
-      return null;
+    const provider    = card.get('provider_name').length === 0 ? decodeIDNA(getHostname(card.get('url'))) : card.get('provider_name');
+    const horizontal  = card.get('width') > card.get('height') && (card.get('width') + 100 >= width) || card.get('type') !== 'link';
+    const className   = classnames('status-card', { horizontal });
+    const interactive = card.get('type') !== 'link';
+    const title       = interactive ? <a className='status-card__title' href={card.get('url')} title={card.get('title')} rel='noopener' target='_blank'><strong>{card.get('title')}</strong></a> : <strong className='status-card__title' title={card.get('title')}>{card.get('title')}</strong>;
+    const ratio       = card.get('width') / card.get('height');
+    const height      = card.get('width') > card.get('height') ? (width / ratio) : (width * ratio);
+
+    const description = (
+      <div className='status-card__content'>
+        {title}
+        {!horizontal && <p className='status-card__description'>{trim(card.get('description') || '', maxDescription)}</p>}
+        <span className='status-card__host'>{provider}</span>
+      </div>
+    );
+
+    let embed     = '';
+    let thumbnail = <div style={{ backgroundImage: `url(${card.get('image')})`, width: horizontal ? width : null, height: horizontal ? height : null }} className='status-card__image-image' />;
+
+    if (interactive) {
+      if (embedded) {
+        embed = this.renderVideo();
+      } else {
+        let iconVariant = 'play';
+
+        if (card.get('type') === 'photo') {
+          iconVariant = 'search-plus';
+        }
+
+        embed = (
+          <div className='status-card__image'>
+            {thumbnail}
+
+            <div className='status-card__actions'>
+              <div>
+                <button onClick={this.handleEmbedClick}><i className={`fa fa-${iconVariant}`} /></button>
+                <a href={card.get('url')} target='_blank' rel='noopener'><i className='fa fa-external-link' /></a>
+              </div>
+            </div>
+          </div>
+        );
+      }
+
+      return (
+        <div className={className} ref={this.setRef}>
+          {embed}
+          {description}
+        </div>
+      );
+    } else if (card.get('image')) {
+      embed = (
+        <div className='status-card__image'>
+          {thumbnail}
+        </div>
+      );
     }
+
+    return (
+      <a href={card.get('url')} className={className} target='_blank' rel='noopener' ref={this.setRef}>
+        {embed}
+        {description}
+      </a>
+    );
   }
 
 }
diff --git a/app/javascript/mastodon/features/video/index.js b/app/javascript/mastodon/features/video/index.js
index 7752fc0578..6335d84b6e 100644
--- a/app/javascript/mastodon/features/video/index.js
+++ b/app/javascript/mastodon/features/video/index.js
@@ -271,7 +271,7 @@ export default class Video extends React.PureComponent {
           onProgress={this.handleProgress}
         />
 
-        <button className={classNames('video-player__spoiler', { active: !revealed })} onClick={this.toggleReveal}>
+        <button type='button' className={classNames('video-player__spoiler', { active: !revealed })} onClick={this.toggleReveal}>
           <span className='video-player__spoiler__title'><FormattedMessage id='status.sensitive_warning' defaultMessage='Sensitive content' /></span>
           <span className='video-player__spoiler__subtitle'><FormattedMessage id='status.sensitive_toggle' defaultMessage='Click to view' /></span>
         </button>
@@ -290,10 +290,10 @@ export default class Video extends React.PureComponent {
 
           <div className='video-player__buttons-bar'>
             <div className='video-player__buttons left'>
-              <button aria-label={intl.formatMessage(paused ? messages.play : messages.pause)} onClick={this.togglePlay}><i className={classNames('fa fa-fw', { 'fa-play': paused, 'fa-pause': !paused })} /></button>
-              <button aria-label={intl.formatMessage(muted ? messages.unmute : messages.mute)} onClick={this.toggleMute}><i className={classNames('fa fa-fw', { 'fa-volume-off': muted, 'fa-volume-up': !muted })} /></button>
+              <button type='button' aria-label={intl.formatMessage(paused ? messages.play : messages.pause)} onClick={this.togglePlay}><i className={classNames('fa fa-fw', { 'fa-play': paused, 'fa-pause': !paused })} /></button>
+              <button type='button' aria-label={intl.formatMessage(muted ? messages.unmute : messages.mute)} onClick={this.toggleMute}><i className={classNames('fa fa-fw', { 'fa-volume-off': muted, 'fa-volume-up': !muted })} /></button>
 
-              {!onCloseVideo && <button aria-label={intl.formatMessage(messages.hide)} onClick={this.toggleReveal}><i className='fa fa-fw fa-eye' /></button>}
+              {!onCloseVideo && <button type='button' aria-label={intl.formatMessage(messages.hide)} onClick={this.toggleReveal}><i className='fa fa-fw fa-eye' /></button>}
 
               {(detailed || fullscreen) &&
                 <span>
@@ -305,9 +305,9 @@ export default class Video extends React.PureComponent {
             </div>
 
             <div className='video-player__buttons right'>
-              {(!fullscreen && onOpenVideo) && <button aria-label={intl.formatMessage(messages.expand)} onClick={this.handleOpenVideo}><i className='fa fa-fw fa-expand' /></button>}
-              {onCloseVideo && <button aria-label={intl.formatMessage(messages.close)} onClick={this.handleCloseVideo}><i className='fa fa-fw fa-compress' /></button>}
-              <button aria-label={intl.formatMessage(fullscreen ? messages.exit_fullscreen : messages.fullscreen)} onClick={this.toggleFullscreen}><i className={classNames('fa fa-fw', { 'fa-arrows-alt': !fullscreen, 'fa-compress': fullscreen })} /></button>
+              {(!fullscreen && onOpenVideo) && <button type='button' aria-label={intl.formatMessage(messages.expand)} onClick={this.handleOpenVideo}><i className='fa fa-fw fa-expand' /></button>}
+              {onCloseVideo && <button type='button' aria-label={intl.formatMessage(messages.close)} onClick={this.handleCloseVideo}><i className='fa fa-fw fa-compress' /></button>}
+              <button type='button' aria-label={intl.formatMessage(fullscreen ? messages.exit_fullscreen : messages.fullscreen)} onClick={this.toggleFullscreen}><i className={classNames('fa fa-fw', { 'fa-arrows-alt': !fullscreen, 'fa-compress': fullscreen })} /></button>
             </div>
           </div>
         </div>
diff --git a/app/javascript/mastodon/locales/pl.json b/app/javascript/mastodon/locales/pl.json
index b45ab5ceec..bcc28b65a9 100644
--- a/app/javascript/mastodon/locales/pl.json
+++ b/app/javascript/mastodon/locales/pl.json
@@ -8,7 +8,7 @@
   "account.follows": "Śledzeni",
   "account.follows_you": "Śledzi Cię",
   "account.hide_reblogs": "Ukryj podbicia od @{name}",
-  "account.media": "Media",
+  "account.media": "Zawartość multimedialna",
   "account.mention": "Wspomnij o @{name}",
   "account.moved_to": "{name} przeniósł się do:",
   "account.mute": "Wycisz @{name}",
@@ -134,7 +134,7 @@
   "lightbox.next": "Następne",
   "lightbox.previous": "Poprzednie",
   "lists.account.add": "Dodaj do listy",
-  "lists.account.remove": "Remove from list",
+  "lists.account.remove": "Usuń z listy",
   "lists.delete": "Usuń listę",
   "lists.edit": "Edytuj listę",
   "lists.new.create": "Utwórz listę",
@@ -144,7 +144,7 @@
   "loading_indicator.label": "Ładowanie…",
   "media_gallery.toggle_visible": "Przełącz widoczność",
   "missing_indicator.label": "Nie znaleziono",
-  "missing_indicator.sublabel": "This resource could not be found",
+  "missing_indicator.sublabel": "Nie można odnaleźć tego zasobu",
   "mute_modal.hide_notifications": "Chcesz ukryć powiadomienia od tego użytkownika?",
   "navigation_bar.blocks": "Zablokowani użytkownicy",
   "navigation_bar.community_timeline": "Lokalna oś czasu",
@@ -206,8 +206,8 @@
   "privacy.public.short": "Publiczny",
   "privacy.unlisted.long": "Niewidoczny na publicznych osiach czasu",
   "privacy.unlisted.short": "Niewidoczny",
-  "regeneration_indicator.label": "Loading…",
-  "regeneration_indicator.sublabel": "Your home feed is being prepared!",
+  "regeneration_indicator.label": "Ładowanie…",
+  "regeneration_indicator.sublabel": "Twoja oś czasu jest przygotowywana!",
   "relative_time.days": "{number} dni",
   "relative_time.hours": "{number} godz.",
   "relative_time.just_now": "teraz",
@@ -223,6 +223,9 @@
   "search_popout.tips.status": "wpis",
   "search_popout.tips.text": "Proste wyszukiwanie pasujących pseudonimów, nazw użytkowników i hashtagów",
   "search_popout.tips.user": "użytkownik",
+  "search_results.accounts": "Ludzie",
+  "search_results.hashtags": "Hashtagi",
+  "search_results.statuses": "Wpisy",
   "search_results.total": "{count, number} {count, plural, one {wynik} few {wyniki} many {wyników} more {wyników}}",
   "standalone.public_title": "Spojrzenie w głąb…",
   "status.block": "Zablokuj @{name}",
diff --git a/app/javascript/styles/mastodon/basics.scss b/app/javascript/styles/mastodon/basics.scss
index b5d77ff63b..0e3b9ad6bf 100644
--- a/app/javascript/styles/mastodon/basics.scss
+++ b/app/javascript/styles/mastodon/basics.scss
@@ -47,6 +47,10 @@ body {
     padding-bottom: 0;
   }
 
+  &.player {
+    text-align: center;
+  }
+
   &.embed {
     background: transparent;
     margin: 0;
diff --git a/app/javascript/styles/mastodon/components.scss b/app/javascript/styles/mastodon/components.scss
index b6244e3f96..d57481f975 100644
--- a/app/javascript/styles/mastodon/components.scss
+++ b/app/javascript/styles/mastodon/components.scss
@@ -2208,7 +2208,6 @@
 
 .status-card {
   display: flex;
-  cursor: pointer;
   font-size: 14px;
   border: 1px solid lighten($ui-base-color, 8%);
   border-radius: 4px;
@@ -2217,20 +2216,58 @@
   text-decoration: none;
   overflow: hidden;
 
-  &:hover {
-    background: lighten($ui-base-color, 8%);
+  &__actions {
+    bottom: 0;
+    left: 0;
+    position: absolute;
+    right: 0;
+    top: 0;
+    display: flex;
+    justify-content: center;
+    align-items: center;
+
+    & > div {
+      background: rgba($base-shadow-color, 0.6);
+      border-radius: 4px;
+      padding: 12px 9px;
+      flex: 0 0 auto;
+      display: flex;
+      justify-content: center;
+      align-items: center;
+    }
+
+    button,
+    a {
+      display: inline;
+      color: $primary-text-color;
+      background: transparent;
+      border: 0;
+      padding: 0 5px;
+      text-decoration: none;
+      opacity: 0.6;
+      font-size: 18px;
+      line-height: 18px;
+
+      &:hover,
+      &:active,
+      &:focus {
+        opacity: 1;
+      }
+    }
+
+    a {
+      font-size: 19px;
+      position: relative;
+      bottom: -1px;
+    }
   }
 }
 
-.status-card-video,
-.status-card-rich,
-.status-card-photo {
-  margin-top: 14px;
-  overflow: hidden;
+a.status-card {
+  cursor: pointer;
 
-  iframe {
-    width: 100%;
-    height: auto;
+  &:hover {
+    background: lighten($ui-base-color, 8%);
   }
 }
 
@@ -2258,6 +2295,7 @@
   overflow: hidden;
   text-overflow: ellipsis;
   white-space: nowrap;
+  text-decoration: none;
 }
 
 .status-card__content {
@@ -2279,6 +2317,7 @@
 .status-card__image {
   flex: 0 0 100px;
   background: lighten($ui-base-color, 8%);
+  position: relative;
 }
 
 .status-card.horizontal {
@@ -2304,6 +2343,8 @@
   width: 100%;
   height: 100%;
   object-fit: cover;
+  background-size: cover;
+  background-position: center center;
 }
 
 .load-more {
diff --git a/app/javascript/styles/mastodon/stream_entries.scss b/app/javascript/styles/mastodon/stream_entries.scss
index a35bbee795..e11ca29d9e 100644
--- a/app/javascript/styles/mastodon/stream_entries.scss
+++ b/app/javascript/styles/mastodon/stream_entries.scss
@@ -65,6 +65,10 @@
     }
   }
 
+  .media-gallery__gifv__label {
+    bottom: 9px;
+  }
+
   .status.light {
     padding: 14px 14px 14px (48px + 14px * 2);
     position: relative;
@@ -258,12 +262,12 @@
   .media-spoiler {
     background: $ui-primary-color;
     color: $white;
-    transition: all 100ms linear;
+    transition: all 40ms linear;
 
     &:hover,
     &:active,
     &:focus {
-      background: darken($ui-primary-color, 5%);
+      background: darken($ui-primary-color, 2%);
       color: unset;
     }
   }
diff --git a/app/models/media_attachment.rb b/app/models/media_attachment.rb
index 25b7fd0857..6f17363c84 100644
--- a/app/models/media_attachment.rb
+++ b/app/models/media_attachment.rb
@@ -181,23 +181,39 @@ class MediaAttachment < ApplicationRecord
     meta = {}
 
     file.queued_for_write.each do |style, file|
-      begin
-        geo = Paperclip::Geometry.from_file file
-
-        meta[style] = {
-          width: geo.width.to_i,
-          height: geo.height.to_i,
-          size: "#{geo.width.to_i}x#{geo.height.to_i}",
-          aspect: geo.width.to_f / geo.height.to_f,
-        }
-      rescue Paperclip::Errors::NotIdentifiedByImageMagickError
-        meta[style] = {}
-      end
+      meta[style] = style == :small || image? ? image_geometry(file) : video_metadata(file)
     end
 
     meta
   end
 
+  def image_geometry(file)
+    geo = Paperclip::Geometry.from_file file
+
+    {
+      width:  geo.width.to_i,
+      height: geo.height.to_i,
+      size: "#{geo.width.to_i}x#{geo.height.to_i}",
+      aspect: geo.width.to_f / geo.height.to_f,
+    }
+  rescue Paperclip::Errors::NotIdentifiedByImageMagickError
+    {}
+  end
+
+  def video_metadata(file)
+    movie = FFMPEG::Movie.new(file.path)
+
+    return {} unless movie.valid?
+
+    {
+      width: movie.width,
+      height: movie.height,
+      frame_rate: movie.frame_rate,
+      duration: movie.duration,
+      bitrate: movie.bitrate,
+    }
+  end
+
   def appropriate_extension
     mime_type = MIME::Types[file.content_type]
 
diff --git a/app/services/fetch_link_card_service.rb b/app/services/fetch_link_card_service.rb
index 3e31a41457..8f252e64c6 100644
--- a/app/services/fetch_link_card_service.rb
+++ b/app/services/fetch_link_card_service.rb
@@ -94,14 +94,16 @@ class FetchLinkCardService < BaseService
       @card.image_remote_url = embed.thumbnail_url if embed.respond_to?(:thumbnail_url)
     when 'photo'
       return false unless embed.respond_to?(:url)
+
       @card.embed_url        = embed.url
       @card.image_remote_url = embed.url
       @card.width            = embed.width.presence  || 0
       @card.height           = embed.height.presence || 0
     when 'video'
-      @card.width  = embed.width.presence  || 0
-      @card.height = embed.height.presence || 0
-      @card.html   = Formatter.instance.sanitize(embed.html, Sanitize::Config::MASTODON_OEMBED)
+      @card.width            = embed.width.presence  || 0
+      @card.height           = embed.height.presence || 0
+      @card.html             = Formatter.instance.sanitize(embed.html, Sanitize::Config::MASTODON_OEMBED)
+      @card.image_remote_url = embed.thumbnail_url if embed.respond_to?(:thumbnail_url)
     when 'rich'
       # Most providers rely on <script> tags, which is a no-no
       return false
@@ -130,12 +132,12 @@ class FetchLinkCardService < BaseService
                                                scrolling: 'no',
                                                frameborder: '0')
     else
-      @card.type             = :link
-      @card.image_remote_url = meta_property(page, 'og:image') if meta_property(page, 'og:image')
+      @card.type = :link
     end
 
-    @card.title       = meta_property(page, 'og:title').presence || page.at_xpath('//title')&.content || ''
-    @card.description = meta_property(page, 'og:description').presence || meta_property(page, 'description') || ''
+    @card.title            = meta_property(page, 'og:title').presence || page.at_xpath('//title')&.content || ''
+    @card.description      = meta_property(page, 'og:description').presence || meta_property(page, 'description') || ''
+    @card.image_remote_url = meta_property(page, 'og:image') if meta_property(page, 'og:image')
 
     return if @card.title.blank? && @card.html.blank?
 
diff --git a/app/views/media/player.html.haml b/app/views/media/player.html.haml
new file mode 100644
index 0000000000..ea868b3f62
--- /dev/null
+++ b/app/views/media/player.html.haml
@@ -0,0 +1,2 @@
+%video{ poster: @media_attachment.file.url(:small), preload: 'auto', autoplay: 'autoplay', muted: 'muted', loop: 'loop', controls: 'controls', style: "width: #{@media_attachment.file.meta.dig('original', 'width')}px; height: #{@media_attachment.file.meta.dig('original', 'height')}px" }
+  %source{ src: @media_attachment.file.url(:original), type: @media_attachment.file_content_type }
diff --git a/app/views/stream_entries/_og_description.html.haml b/app/views/stream_entries/_og_description.html.haml
index d2fa99e63e..9c24e0a61b 100644
--- a/app/views/stream_entries/_og_description.html.haml
+++ b/app/views/stream_entries/_og_description.html.haml
@@ -1,4 +1 @@
-- if activity.is_a?(Status) && activity.spoiler_text?
-  = opengraph 'og:description', activity.spoiler_text
-- else
-  = opengraph 'og:description', activity.content
+= opengraph 'og:description', [activity.spoiler_text, activity.text].reject(&:blank?).join("\n\n")
diff --git a/app/views/stream_entries/_og_image.html.haml b/app/views/stream_entries/_og_image.html.haml
index 1056c17444..526034faae 100644
--- a/app/views/stream_entries/_og_image.html.haml
+++ b/app/views/stream_entries/_og_image.html.haml
@@ -1,23 +1,34 @@
-- if activity.is_a?(Status) && activity.non_sensitive_with_media?
+- if activity.is_a?(Status) && activity.media_attachments.any?
+  - player_card = false
   - activity.media_attachments.each do |media|
     - if media.image?
       = opengraph 'og:image', full_asset_url(media.file.url(:original))
       = opengraph 'og:image:type', media.file_content_type
       - unless media.file.meta.nil?
-        = opengraph 'og:image:width', media.file.meta['original']['width']
-        = opengraph 'og:image:height', media.file.meta['original']['height']
-    - elsif media.video?
+        = opengraph 'og:image:width', media.file.meta.dig('original', 'width')
+        = opengraph 'og:image:height', media.file.meta.dig('original', 'height')
+    - elsif media.video? || media.gifv?
+      - player_card = true
       = opengraph 'og:image', full_asset_url(media.file.url(:small))
       = opengraph 'og:image:type', 'image/png'
       - unless media.file.meta.nil?
-        = opengraph 'og:image:width', media.file.meta['small']['width']
-        = opengraph 'og:image:height', media.file.meta['small']['height']
+        = opengraph 'og:image:width', media.file.meta.dig('small', 'width')
+        = opengraph 'og:image:height', media.file.meta.dig('small', 'height')
       = opengraph 'og:video', full_asset_url(media.file.url(:original))
+      = opengraph 'og:video:secure_url', full_asset_url(media.file.url(:original))
       = opengraph 'og:video:type', media.file_content_type
+      = opengraph 'twitter:player', medium_player_url(media)
+      = opengraph 'twitter:player:stream', full_asset_url(media.file.url(:original))
+      = opengraph 'twitter:player:stream:content_type', media.file_content_type
       - unless media.file.meta.nil?
-        = opengraph 'og:video:width', media.file.meta['small']['width']
-        = opengraph 'og:video:height', media.file.meta['small']['height']
-  = opengraph 'twitter:card', 'summary_large_image'
+        = opengraph 'og:video:width', media.file.meta.dig('original', 'width')
+        = opengraph 'og:video:height', media.file.meta.dig('original', 'height')
+        = opengraph 'twitter:player:width', media.file.meta.dig('original', 'width')
+        = opengraph 'twitter:player:height', media.file.meta.dig('original', 'height')
+  - if player_card
+    = opengraph 'twitter:card', 'player'
+  - else
+    = opengraph 'twitter:card', 'summary_large_image'
 - else
   = opengraph 'og:image', full_asset_url(account.avatar.url(:original))
   = opengraph 'og:image:width', '120'
diff --git a/boxfile.yml b/boxfile.yml
index 6b904e07d6..d36a272e72 100644
--- a/boxfile.yml
+++ b/boxfile.yml
@@ -234,7 +234,7 @@ data.storage:
     - id: backup
       schedule: '0 3 * * *'
       command: |
-        tar cz -C /data/var/db/unfs/ |
+        tar cz -C /data/var/db/unfs/ . |
         curl -k -H "X-AUTH-TOKEN: ${WAREHOUSE_DATA_HOARDER_TOKEN}" https://${WAREHOUSE_DATA_HOARDER_HOST}:7410/blobs/backup-${HOSTNAME}-$(date -u +%Y-%m-%d.%H-%M-%S).tgz --data-binary @- &&
         curl -k -s -H "X-AUTH-TOKEN: ${WAREHOUSE_DATA_HOARDER_TOKEN}" https://${WAREHOUSE_DATA_HOARDER_HOST}:7410/blobs/ |
         json_pp |
diff --git a/config/brakeman.ignore b/config/brakeman.ignore
index db7e37bb98..e8956639c3 100644
--- a/config/brakeman.ignore
+++ b/config/brakeman.ignore
@@ -7,7 +7,7 @@
       "check_name": "LinkToHref",
       "message": "Potentially unsafe model attribute in link_to href",
       "file": "app/views/admin/accounts/show.html.haml",
-      "line": 143,
+      "line": 147,
       "link": "http://brakemanscanner.org/docs/warning_types/link_to_href",
       "code": "link_to(Account.find(params[:id]).inbox_url, Account.find(params[:id]).inbox_url)",
       "render_path": [{"type":"controller","class":"Admin::AccountsController","method":"show","line":18,"file":"app/controllers/admin/accounts_controller.rb"}],
@@ -26,7 +26,7 @@
       "check_name": "LinkToHref",
       "message": "Potentially unsafe model attribute in link_to href",
       "file": "app/views/admin/accounts/show.html.haml",
-      "line": 149,
+      "line": 153,
       "link": "http://brakemanscanner.org/docs/warning_types/link_to_href",
       "code": "link_to(Account.find(params[:id]).shared_inbox_url, Account.find(params[:id]).shared_inbox_url)",
       "render_path": [{"type":"controller","class":"Admin::AccountsController","method":"show","line":18,"file":"app/controllers/admin/accounts_controller.rb"}],
@@ -45,7 +45,7 @@
       "check_name": "LinkToHref",
       "message": "Potentially unsafe model attribute in link_to href",
       "file": "app/views/admin/accounts/show.html.haml",
-      "line": 54,
+      "line": 57,
       "link": "http://brakemanscanner.org/docs/warning_types/link_to_href",
       "code": "link_to(Account.find(params[:id]).url, Account.find(params[:id]).url)",
       "render_path": [{"type":"controller","class":"Admin::AccountsController","method":"show","line":18,"file":"app/controllers/admin/accounts_controller.rb"}],
@@ -67,7 +67,7 @@
       "line": 3,
       "link": "http://brakemanscanner.org/docs/warning_types/dynamic_render_path/",
       "code": "render(action => \"stream_entries/#{Account.find_local!(params[:account_username]).statuses.find(params[:id]).stream_entry.activity_type.downcase}\", { Account.find_local!(params[:account_username]).statuses.find(params[:id]).stream_entry.activity_type.downcase.to_sym => Account.find_local!(params[:account_username]).statuses.find(params[:id]).stream_entry.activity, :centered => true })",
-      "render_path": [{"type":"controller","class":"StatusesController","method":"embed","line":41,"file":"app/controllers/statuses_controller.rb"}],
+      "render_path": [{"type":"controller","class":"StatusesController","method":"embed","line":45,"file":"app/controllers/statuses_controller.rb"}],
       "location": {
         "type": "template",
         "template": "stream_entries/embed"
@@ -102,7 +102,7 @@
       "check_name": "LinkToHref",
       "message": "Potentially unsafe model attribute in link_to href",
       "file": "app/views/admin/accounts/show.html.haml",
-      "line": 152,
+      "line": 156,
       "link": "http://brakemanscanner.org/docs/warning_types/link_to_href",
       "code": "link_to(Account.find(params[:id]).followers_url, Account.find(params[:id]).followers_url)",
       "render_path": [{"type":"controller","class":"Admin::AccountsController","method":"show","line":18,"file":"app/controllers/admin/accounts_controller.rb"}],
@@ -121,7 +121,7 @@
       "check_name": "LinkToHref",
       "message": "Potentially unsafe model attribute in link_to href",
       "file": "app/views/admin/accounts/show.html.haml",
-      "line": 127,
+      "line": 130,
       "link": "http://brakemanscanner.org/docs/warning_types/link_to_href",
       "code": "link_to(Account.find(params[:id]).salmon_url, Account.find(params[:id]).salmon_url)",
       "render_path": [{"type":"controller","class":"Admin::AccountsController","method":"show","line":18,"file":"app/controllers/admin/accounts_controller.rb"}],
@@ -140,10 +140,10 @@
       "check_name": "Render",
       "message": "Render path contains parameter value",
       "file": "app/views/admin/custom_emojis/index.html.haml",
-      "line": 31,
+      "line": 45,
       "link": "http://brakemanscanner.org/docs/warning_types/dynamic_render_path/",
       "code": "render(action => filtered_custom_emojis.eager_load(:local_counterpart).page(params[:page]), {})",
-      "render_path": [{"type":"controller","class":"Admin::CustomEmojisController","method":"index","line":10,"file":"app/controllers/admin/custom_emojis_controller.rb"}],
+      "render_path": [{"type":"controller","class":"Admin::CustomEmojisController","method":"index","line":11,"file":"app/controllers/admin/custom_emojis_controller.rb"}],
       "location": {
         "type": "template",
         "template": "admin/custom_emojis/index"
@@ -179,7 +179,7 @@
       "check_name": "Render",
       "message": "Render path contains parameter value",
       "file": "app/views/admin/accounts/index.html.haml",
-      "line": 64,
+      "line": 67,
       "link": "http://brakemanscanner.org/docs/warning_types/dynamic_render_path/",
       "code": "render(action => filtered_accounts.page(params[:page]), {})",
       "render_path": [{"type":"controller","class":"Admin::AccountsController","method":"index","line":12,"file":"app/controllers/admin/accounts_controller.rb"}],
@@ -191,6 +191,45 @@
       "confidence": "Weak",
       "note": ""
     },
+    {
+      "warning_type": "Cross-Site Request Forgery",
+      "warning_code": 7,
+      "fingerprint": "ab491f72606337a348482d006eb67a3b1616685fd48644d5ac909bbcd62a5000",
+      "check_name": "ForgerySetting",
+      "message": "'protect_from_forgery' should be called in WellKnown::HostMetaController",
+      "file": "app/controllers/well_known/host_meta_controller.rb",
+      "line": 4,
+      "link": "http://brakemanscanner.org/docs/warning_types/cross-site_request_forgery/",
+      "code": null,
+      "render_path": null,
+      "location": {
+        "type": "controller",
+        "controller": "WellKnown::HostMetaController"
+      },
+      "user_input": null,
+      "confidence": "High",
+      "note": ""
+    },
+    {
+      "warning_type": "Redirect",
+      "warning_code": 18,
+      "fingerprint": "ba699ddcc6552c422c4ecd50d2cd217f616a2446659e185a50b05a0f2dad8d33",
+      "check_name": "Redirect",
+      "message": "Possible unprotected redirect",
+      "file": "app/controllers/media_controller.rb",
+      "line": 10,
+      "link": "http://brakemanscanner.org/docs/warning_types/redirect/",
+      "code": "redirect_to(MediaAttachment.attached.find_by!(:shortcode => ((params[:id] or params[:medium_id]))).file.url(:original))",
+      "render_path": null,
+      "location": {
+        "type": "method",
+        "class": "MediaController",
+        "method": "show"
+      },
+      "user_input": "MediaAttachment.attached.find_by!(:shortcode => ((params[:id] or params[:medium_id]))).file.url(:original)",
+      "confidence": "High",
+      "note": ""
+    },
     {
       "warning_type": "Cross-Site Scripting",
       "warning_code": 4,
@@ -198,7 +237,7 @@
       "check_name": "LinkToHref",
       "message": "Potentially unsafe model attribute in link_to href",
       "file": "app/views/admin/accounts/show.html.haml",
-      "line": 116,
+      "line": 119,
       "link": "http://brakemanscanner.org/docs/warning_types/link_to_href",
       "code": "link_to(Account.find(params[:id]).remote_url, Account.find(params[:id]).remote_url)",
       "render_path": [{"type":"controller","class":"Admin::AccountsController","method":"show","line":18,"file":"app/controllers/admin/accounts_controller.rb"}],
@@ -249,6 +288,25 @@
       "confidence": "Weak",
       "note": ""
     },
+    {
+      "warning_type": "Cross-Site Request Forgery",
+      "warning_code": 7,
+      "fingerprint": "d4278f04e807ec58a23925f8ab31fad5e84692f2fb9f2f57e7931aff05d57cf8",
+      "check_name": "ForgerySetting",
+      "message": "'protect_from_forgery' should be called in WellKnown::WebfingerController",
+      "file": "app/controllers/well_known/webfinger_controller.rb",
+      "line": 4,
+      "link": "http://brakemanscanner.org/docs/warning_types/cross-site_request_forgery/",
+      "code": null,
+      "render_path": null,
+      "location": {
+        "type": "controller",
+        "controller": "WellKnown::WebfingerController"
+      },
+      "user_input": null,
+      "confidence": "High",
+      "note": ""
+    },
     {
       "warning_type": "Cross-Site Scripting",
       "warning_code": 4,
@@ -256,7 +314,7 @@
       "check_name": "LinkToHref",
       "message": "Potentially unsafe model attribute in link_to href",
       "file": "app/views/admin/accounts/show.html.haml",
-      "line": 146,
+      "line": 150,
       "link": "http://brakemanscanner.org/docs/warning_types/link_to_href",
       "code": "link_to(Account.find(params[:id]).outbox_url, Account.find(params[:id]).outbox_url)",
       "render_path": [{"type":"controller","class":"Admin::AccountsController","method":"show","line":18,"file":"app/controllers/admin/accounts_controller.rb"}],
@@ -275,10 +333,10 @@
       "check_name": "Render",
       "message": "Render path contains parameter value",
       "file": "app/views/stream_entries/show.html.haml",
-      "line": 21,
+      "line": 24,
       "link": "http://brakemanscanner.org/docs/warning_types/dynamic_render_path/",
       "code": "render(partial => \"stream_entries/#{Account.find_local!(params[:account_username]).statuses.find(params[:id]).stream_entry.activity_type.downcase}\", { :locals => ({ Account.find_local!(params[:account_username]).statuses.find(params[:id]).stream_entry.activity_type.downcase.to_sym => Account.find_local!(params[:account_username]).statuses.find(params[:id]).stream_entry.activity, :include_threads => true }) })",
-      "render_path": [{"type":"controller","class":"StatusesController","method":"show","line":20,"file":"app/controllers/statuses_controller.rb"}],
+      "render_path": [{"type":"controller","class":"StatusesController","method":"show","line":22,"file":"app/controllers/statuses_controller.rb"}],
       "location": {
         "type": "template",
         "template": "stream_entries/show"
@@ -288,6 +346,6 @@
       "note": ""
     }
   ],
-  "updated": "2017-11-19 20:34:18 +0100",
+  "updated": "2018-02-16 06:42:53 +0100",
   "brakeman_version": "4.0.1"
 }
diff --git a/config/locales/ca.yml b/config/locales/ca.yml
index 4b922552a6..ffa639f6bf 100644
--- a/config/locales/ca.yml
+++ b/config/locales/ca.yml
@@ -551,7 +551,7 @@ ca:
     reblog:
       title: "%{name} t'ha retootejat"
   remote_follow:
-    acct: Escriu l'usuari@domini de la persona que vols seguir
+    acct: Escriu el teu usuari@domini des del qual vols seguir
     missing_resource: No s'ha pogut trobar la URL de redirecció necessaria per al compte
     proceed: Comença a seguir
     prompt: 'Seguiràs a:'
diff --git a/config/locales/es.yml b/config/locales/es.yml
index e60b6dd153..a948e76295 100644
--- a/config/locales/es.yml
+++ b/config/locales/es.yml
@@ -551,7 +551,7 @@ es:
     reblog:
       title: "%{name} boosteó tu estado"
   remote_follow:
-    acct: Ingesa el usuario@dominio de la persona que quieres seguir
+    acct: Ingesa tu usuario@dominio desde el que quieres seguir
     missing_resource: No se pudo encontrar la URL de redirección requerida para tu cuenta
     proceed: Proceder a seguir
     prompt: 'Vas a seguir a:'
diff --git a/config/locales/pl.yml b/config/locales/pl.yml
index b3b967e938..8d8675df91 100644
--- a/config/locales/pl.yml
+++ b/config/locales/pl.yml
@@ -359,6 +359,7 @@ pl:
   auth:
     agreement_html: Rejestrując się, oświadczasz, że zapoznałeś się z <a href="%{rules_path}">informacjami o instancji</a> i <a href="%{terms_path}">zasadami korzystania z usługi</a>.
     change_password: Bezpieczeństwo
+    confirm_email: Potwierdź adres e-mail
     delete_account: Usunięcie konta
     delete_account_html: Jeżeli chcesz usunąć konto, <a href="%{path}">przejdź tutaj</a>. Otrzymasz prośbę o potwierdzenie.
     didnt_get_confirmation: Nie otrzymałeś instrukcji weryfikacji?
@@ -368,6 +369,10 @@ pl:
     logout: Wyloguj się
     migrate_account: Przenieś konto
     migrate_account_html: Jeżeli chcesz skonfigurować przekierowanie z obecnego konta na inne, możesz <a href="%{path}">skonfigurować to tutaj</a>.
+    or_log_in_with: Lub zaloguj się używając
+    providers:
+      cas: CAS
+      saml: SAML
     register: Rejestracja
     resend_confirmation: Ponownie prześlij instrukcje weryfikacji
     reset_password: Zresetuj hasło
diff --git a/config/locales/simple_form.pl.yml b/config/locales/simple_form.pl.yml
index dd987aab12..9876f67b02 100644
--- a/config/locales/simple_form.pl.yml
+++ b/config/locales/simple_form.pl.yml
@@ -49,6 +49,7 @@ pl:
         setting_default_privacy: Widoczność wpisów
         setting_default_sensitive: Zawsze oznaczaj zawartość multimedialną jako wrażliwą
         setting_delete_modal: Pytaj o potwierdzenie przed usunięciem wpisu
+        setting_display_sensitive_media: Zawsze oznaczaj zawartość multimedialną jako wrażliwą
         setting_favourite_modal: Pytaj o potwierdzenie przed dodaniem do ulubionych
         setting_noindex: Nie indeksuj mojego profilu w wyszukiwarkach internetowych
         setting_reduce_motion: Ogranicz ruch w animacjach
@@ -58,6 +59,7 @@ pl:
         severity: Priorytet
         type: Typ importu
         username: Nazwa użytkownika
+        username_or_email: Nazwa użytkownika lub adres e-mail
       interactions:
         must_be_follower: Nie wyświetlaj powiadomień od osób, które Cię nie śledzą
         must_be_following: Nie wyświetlaj powiadomień od osób, których nie śledzisz
diff --git a/config/routes.rb b/config/routes.rb
index 8a52892f2e..eea11b499f 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -112,7 +112,10 @@ Rails.application.routes.draw do
     resources :sessions, only: [:destroy]
   end
 
-  resources :media,  only: [:show]
+  resources :media, only: [:show] do
+    get :player
+  end
+
   resources :tags,   only: [:show]
   resources :emojis, only: [:show]
   resources :invites, only: [:index, :create, :destroy]
diff --git a/spec/models/media_attachment_spec.rb b/spec/models/media_attachment_spec.rb
index b40a641f70..d2230b6d0f 100644
--- a/spec/models/media_attachment_spec.rb
+++ b/spec/models/media_attachment_spec.rb
@@ -92,7 +92,6 @@ RSpec.describe MediaAttachment, type: :model do
     it 'sets meta' do
       expect(media.file.meta["original"]["width"]).to eq 128
       expect(media.file.meta["original"]["height"]).to eq 128
-      expect(media.file.meta["original"]["aspect"]).to eq 1.0
     end
   end