Merge c4b5b8e231 into d55d1f423d

youtube_dl/YoutubeDL.py

@@ -214,6 +214,7 @@ class YoutubeDL(object):
     writeannotations:  Write the video annotations to a .annotations.xml file
     writethumbnail:    Write the thumbnail image to a file
     write_all_thumbnails:  Write all thumbnail formats to files
+    thumbnailformat:   Thumbnail format ID
     writesubtitles:    Write the video subtitles to a file
     writeautomaticsub: Write the automatically generated subtitles to a file
     allsubtitles:      Downloads all the subtitles of the video
@@ -2681,7 +2682,17 @@ class YoutubeDL(object):
     def _write_thumbnails(self, info_dict, filename):
         if self.params.get('writethumbnail', False):
             thumbnails = info_dict.get('thumbnails')
+            thumbnailformat = self.params.get('thumbnailformat', False)
             if thumbnails:
+                if thumbnailformat:
+                    if thumbnailformat in [i.get('id') for i in thumbnails]:
+                        thumbnails = [i for i in thumbnails if i.get('id') == thumbnailformat]
+                    else:
+                        self.report_warning('Thumbnail ID unavailable, falling back to default.'
+                                            ' Check available thumbnail formats with the option --list-thumbnails'
+                                            )
+                        thumbnails = [thumbnails[-1]]
+                else:
                     thumbnails = [thumbnails[-1]]
         elif self.params.get('write_all_thumbnails', False):
             thumbnails = info_dict.get('thumbnails')

youtube_dl/__init__.py

@@ -373,6 +373,7 @@ def _real_main(argv=None):
         'writeannotations': opts.writeannotations,
         'writeinfojson': opts.writeinfojson,
         'writethumbnail': opts.writethumbnail,
+        'thumbnailformat': opts.thumbnailformat,
         'write_all_thumbnails': opts.write_all_thumbnails,
         'writesubtitles': opts.writesubtitles,
         'writeautomaticsub': opts.writeautomaticsub,

youtube_dl/options.py

@@ -781,6 +781,10 @@ def parseOpts(overrideArguments=None):
         '--write-thumbnail',
         action='store_true', dest='writethumbnail', default=False,
         help='Write thumbnail image to disk')
+    thumbnail.add_option(
+        '--thumbnail-format',
+        action='store', dest='thumbnailformat', metavar='ID', default=None,
+        help='Thumbnail format ID')
     thumbnail.add_option(
         '--write-all-thumbnails',
         action='store_true', dest='write_all_thumbnails', default=False,