3 files changed, 25 insertions, 2 deletions

diff --git a/server/helpers/youtube-dl.ts b/server/helpers/youtube-dl.ts
index 9d2e54fb5..fac3da6ba 100644
--- a/server/helpers/youtube-dl.ts
+++ b/server/helpers/youtube-dl.ts
@@ -76,7 +76,7 @@ function getYoutubeDLSubs (url: string, opts?: object): Promise<YoutubeDLSubs> {
           logger.debug('Get subtitles from youtube dl.', { url, files })
 
           const subtitles = files.reduce((acc, filename) => {
-            const matched = filename.match(/\.([a-z]{2})\.(vtt|ttml)/i)
+            const matched = filename.match(/\.([a-z]{2})(-[a-z]+)?\.(vtt|ttml)/i)
             if (!matched || !matched[1]) return acc
 
             return [
diff --git a/server/initializers/migrations/0612-captions-unique.ts b/server/initializers/migrations/0612-captions-unique.ts
new file mode 100644
index 000000000..368838a2a
--- /dev/null
+++ b/server/initializers/migrations/0612-captions-unique.ts
@@ -0,0 +1,23 @@
+import * as Sequelize from 'sequelize'
+
+async function up (utils: {
+  transaction: Sequelize.Transaction
+  queryInterface: Sequelize.QueryInterface
+  sequelize: Sequelize.Sequelize
+  db: any
+}): Promise<void> {
+
+  await utils.sequelize.query(
+    'DELETE FROM "videoCaption" v1 USING (SELECT MIN(id) as id, "filename" FROM "videoCaption" ' +
+    'GROUP BY "filename" HAVING COUNT(*) > 1) v2 WHERE v1."filename" = v2."filename" AND v1.id <> v2.id'
+  )
+}
+
+function down (options) {
+  throw new Error('Not implemented.')
+}
+
+export {
+  up,
+  down
+}
diff --git a/server/models/video/video.ts b/server/models/video/video.ts
index b10c6e38e..e9afb2c18 100644
--- a/server/models/video/video.ts
+++ b/server/models/video/video.ts
@@ -917,7 +917,7 @@ export class VideoModel extends Model {
       },
       include: [
         {
-          attributes: [ 'language', 'fileUrl' ],
+          attributes: [ 'filename', 'language', 'fileUrl' ],
           model: VideoCaptionModel.unscoped(),
           required: false
         },