Fix speed persistence per video.

common/lib/xmodule/xmodule/js/src/video/01_initialize.js

@@ -382,8 +382,10 @@ function (VideoPlayer, CookieStorage) {
             isTouch = onTouchBasedDevice() || '',
             storage = CookieStorage('video_player'),
             speed = storage.getItem('video_speed_' + id) ||
+                el.data('speed') ||
                 storage.getItem('general_speed') ||
-                el.data('speed').toFixed(2).replace(/\.00$/, '.0') || '1.0';
+                el.data('general-speed') ||
+                '1.0';
 
         if (isTouch) {
             el.addClass('is-touch');
@@ -397,7 +399,7 @@ function (VideoPlayer, CookieStorage) {
             id: id,
             isFullScreen: false,
             isTouch: isTouch,
-            speed: speed,
+            speed: Number(speed).toFixed(2).replace(/\.00$/, '.0'),
             storage: storage
         });
 

common/lib/xmodule/xmodule/video_module.py

@@ -233,7 +233,8 @@ class VideoModule(VideoFields, XModule):
             'id': self.location.html_id(),
             'show_captions': json.dumps(self.show_captions),
             'sources': sources,
-            'speed': self.speed or self.global_speed,
+            'speed': json.dumps(self.speed),
+            'general_speed': self.global_speed,
             'start': self.start_time.total_seconds(),
             'sub': self.sub,
             'track': track_url,

lms/djangoapps/courseware/features/video.feature

@@ -62,7 +62,8 @@ Feature: LMS.Video component
     And I reload the page
     When I open video "A"
     Then video "A" should start playing at speed "2.0"
+    And I select the "1.0" speed on video "A"
     When I open video "B"
     Then video "B" should start playing at speed "0.50"
     When I open video "C"
-    Then video "C" should start playing at speed "0.50"
+    Then video "C" should start playing at speed "1.0"

lms/djangoapps/courseware/tests/test_video_mongo.py

@@ -66,7 +66,8 @@ class TestVideoYouTube(TestVideo):
             'end': 3610.0,
             'id': self.item_module.location.html_id(),
             'sources': sources,
-            'speed': 1.0,
+            'speed': 'null',
+            'general_speed': 1.0,
             'start': 3603.0,
             'sub': u'a_sub_file.srt.sjson',
             'track': None,
@@ -120,7 +121,8 @@ class TestVideoNonYouTube(TestVideo):
             'end': 3610.0,
             'id': self.item_module.location.html_id(),
             'sources': sources,
-            'speed': 1.0,
+            'speed': 'null',
+            'general_speed': 1.0,
             'start': 3603.0,
             'sub': u'a_sub_file.srt.sjson',
             'track': None,
@@ -201,7 +203,8 @@ class TestGetHtmlMethod(BaseTestXmodule):
             },
             'start': 3603.0,
             'sub': u'a_sub_file.srt.sjson',
-            'speed': 1.0,
+            'speed': 'null',
+            'general_speed': 1.0,
             'track': None,
             'youtube_streams': '1.00:OEoXaMPEzfM',
             'autoplay': settings.FEATURES.get('AUTOPLAY_VIDEOS', True),
@@ -302,7 +305,8 @@ class TestGetHtmlMethod(BaseTestXmodule):
             'end': 3610.0,
             'id': None,
             'sources': None,
-            'speed': 1.0,
+            'speed': 'null',
+            'general_speed': 1.0,
             'start': 3603.0,
             'sub': u'a_sub_file.srt.sjson',
             'track': None,

lms/templates/video.html

@@ -20,6 +20,7 @@
     data-save-state-url="${ajax_url}"
     data-caption-data-dir="${data_dir}"
     data-show-captions="${show_captions}"
+    data-general-speed="${general_speed}"
     data-speed="${speed}"
     data-start="${start}"
     data-end="${end}"