diff -r 000000000000 -r fd39db613f8b src/pyams_media/zmi/video.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/pyams_media/zmi/video.py	Wed Sep 02 15:31:55 2015 +0200
@@ -0,0 +1,148 @@
+#
+# Copyright (c) 2008-2015 Thierry Florac <tflorac AT ulthar.net>
+# All Rights Reserved.
+#
+# This software is subject to the provisions of the Zope Public License,
+# Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.
+# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
+# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
+# FOR A PARTICULAR PURPOSE.
+#
+from pyams_form.interfaces.form import IWidgetsPrefixViewletsManager
+from pyams_skin.help import ContentHelp
+from pyams_skin.interfaces import IContentHelp
+from pyams_template.template import template_config
+from pyams_utils.adapter import adapter_config
+from pyams_zmi.layer import IAdminLayer
+
+__docformat__ = 'restructuredtext'
+
+
+# import standard library
+from decimal import Decimal
+
+# import interfaces
+from pyams_file.interfaces import IVideo, IThumbnail
+from pyams_skin.interfaces.viewlet import IContextActions
+from z3c.form.interfaces import HIDDEN_MODE
+
+# import packages
+from pyams_form.form import AJAXAddForm
+from pyams_form.schema import CloseButton
+from pyams_pagelet.pagelet import pagelet_config
+from pyams_skin.layer import IPyAMSLayer
+from pyams_skin.viewlet.toolbar import ToolbarMenuDivider, ToolbarMenuItem
+from pyams_utils.schema import DottedDecimalField
+from pyams_viewlet.viewlet import viewlet_config, Viewlet
+from pyams_zmi.form import AdminDialogAddForm
+from pyramid.view import view_config
+from z3c.form import field, button
+from zope.interface import Interface
+
+from pyams_media import _
+
+
+@viewlet_config(name='video.thumbnail.divider', context=IVideo, layer=IPyAMSLayer, view=Interface,
+                manager=IContextActions, permission='manage', weight=19)
+class VideoDividerAction(ToolbarMenuDivider):
+    """Video divider action"""
+
+
+#
+# Video thumbnail
+#
+
+@viewlet_config(name='video.thumbnail.action', context=IVideo, layer=IPyAMSLayer, view=Interface,
+                manager=IContextActions, permission='manage', weight=20)
+class VideoThumbnailAction(ToolbarMenuItem):
+    """Video thumbnail selection action"""
+
+    label = _("Select thumbnail...")
+    label_css_class = 'fa fa-fw fa-film'
+
+    url = 'video-thumbnail.html'
+    modal_target = True
+
+
+class IVideoThumbnailButtons(Interface):
+    """Video thumbnail selection buttons"""
+
+    close = CloseButton(name='close', title=_("Close"))
+    select = button.Button(name='resize', title=_("Select thumbnail"))
+
+
+class IVideoThumbnailInfo(Interface):
+    """Video thumbnail selection info"""
+
+    time = DottedDecimalField(title=_("Thumbnail timestamp"),
+                              required=True,
+                              default=Decimal(5))
+
+
+@pagelet_config(name='video-thumbnail.html', context=IVideo, layer=IPyAMSLayer, permission='manage')
+class VideoThumbnailEditForm(AdminDialogAddForm):
+    """Video thumbnail selection form"""
+
+    legend = _("Select video thumbnail")
+    icon_css_class = 'fa fa-fw fa-film'
+
+    fields = field.Fields(IVideoThumbnailInfo)
+    buttons = button.Buttons(IVideoThumbnailButtons)
+    ajax_handler = 'video-thumbnail.json'
+
+    @property
+    def title(self):
+        return self.context.title or self.context.filename
+
+    def updateWidgets(self, prefix=None):
+        super(VideoThumbnailEditForm, self).updateWidgets(prefix)
+        self.widgets['time'].mode = HIDDEN_MODE
+
+    def updateActions(self):
+        super(VideoThumbnailEditForm, self).updateActions()
+        if 'select' in self.actions:
+            self.actions['select'].addClass('btn-primary')
+
+    def createAndAdd(self, data):
+        thumbnailer = IThumbnail(self.context, None)
+        if thumbnailer is not None:
+            size = thumbnailer.get_image_size()
+            time = data.get('time')
+            if not isinstance(time, float):
+                time = float(time)
+            thumbnailer.clear_thumbnails()
+            return thumbnailer.get_thumbnail('{0[0]}x{0[1]}'.format(size), 'png', time)
+
+
+@view_config(name='video-thumbnail.json', context=IVideo, request_type=IPyAMSLayer,
+             permission='manage', renderer='json', xhr=True)
+class VideoThumbnailAJAXEditForm(AJAXAddForm, VideoThumbnailEditForm):
+    """Video thumbnail selection form, JSON renderer"""
+
+    def get_ajax_output(self, changes):
+        translate = self.request.localizer.translate
+        if changes:
+            return {'status': 'success',
+                    'message': translate(_("Thumbnail selected successfully."))}
+        else:
+            return {'status': 'info',
+                    'message': translate(_("An error occurred. No created thumbnail."))}
+
+
+@viewlet_config(name='video-thumbnail-prefix', context=IVideo, layer=IAdminLayer, view=VideoThumbnailEditForm,
+                manager=IWidgetsPrefixViewletsManager)
+@template_config(template='templates/video-thumbnail.pt')
+class VideoThumbnailViewletsPrefix(Viewlet):
+    """Video thumbnail edit form viewlets prefix"""
+
+
+@adapter_config(context=(IVideo, IAdminLayer, VideoThumbnailEditForm), provides=IContentHelp)
+class VideoThumbnailEditFormHelpAdapter(ContentHelp):
+    """Video thumbnail selection form help adapter"""
+
+    message = _("""You can play the video until you display the image you want.
+
+By pausing the video and clicking on ''Select thumbnail'' button, the selected frame will be used as
+video illustration.""")
+    message_format = 'rest'