Add hability to overwrite embed code on the backend

embed_video/backends.py

@@ -141,6 +141,18 @@ class VideoBackend(object):
         """
         return self.pattern_thumbnail_url % self.code
 
+    def get_embed_code(self, width, height):
+        """
+        Returns embed code.
+        """
+        return '<iframe width="%(width)d" height="%(height)d" ' \
+                'src="%(url)s" frameborder="0" allowfullscreen>' \
+                '</iframe>' % {
+                    'url': self.url,
+                    'width': width,
+                    'height': height,
+                }
+
 
 class YoutubeBackend(VideoBackend):
     """
@@ -246,3 +258,6 @@ class SoundCloudBackend(VideoBackend):
     def get_code(self):
         match = self.re_code.search(self.response.get('html'))
         return match.group('code')
+
+    def get_embed_code(self, width, height):
+        return super(SoundCloudBackend, self).get_embed_code(width=width, height=self.height)

embed_video/templatetags/embed_video_tags.py

@@ -99,13 +99,9 @@ def embed(backend, size='small'):
         backend = detect_backend(backend)
 
     _size = _embed_get_size(size)
-    params = _embed_get_params(backend, _size)
 
-    return mark_safe(
-        '<iframe width="%(width)d" height="%(height)d" '
-        'src="%(url)s" frameborder="0" allowfullscreen>'
-        '</iframe>' % params
-    )
+    return mark_safe(backend.get_embed_code(width=_size[0],
+                                            height=_size[1]))
 
 
 def _embed_get_size(size):
@@ -122,17 +118,3 @@ def _embed_get_size(size):
     elif 'x' in size:
         return [int(x) for x in size.split('x')]
 
-
-def _embed_get_params(backend, size):
-    params = {
-        'url': backend.url,
-        'width': size[0],
-        'height': size[1],
-    }
-
-    if isinstance(backend, SoundCloudBackend):
-        params.update({'height': backend.height})
-
-    return params
-
-