Add support for minimum and maximum duration

README.md

@@ -135,6 +135,10 @@ Alternatively, refer to the [developer instructions](#developer-instructions) fo
     --reject-title REGEX             Skip download for matching titles (regex or
                                      caseless sub-string)
     --max-downloads NUMBER           Abort after downloading NUMBER files
+    --min-duration SECONDS           Do not download any videos smaller than
+                                     duration, in seconds
+    --max-duration SECONDS           Do not download any videos larger than
+                                     duration, in seconds
     --min-filesize SIZE              Do not download any videos smaller than
                                      SIZE (e.g. 50k or 44.6m)
     --max-filesize SIZE              Do not download any videos larger than SIZE

youtube_dl/YoutubeDL.py

@@ -749,6 +749,19 @@ class YoutubeDL(object):
             return '%s has already been recorded in archive' % video_title
 
         if not incomplete:
+            duration = info_dict.get('duration')
+            min_duration = self.params.get('min_duration')
+            if min_duration is not None:
+                if duration is None:
+                    return 'Skipping %s, because its duration is unknown and min_duration is specified' % (video_title)
+                if duration < min_duration:
+                    return 'Skipping %s, because its duration (%ds) is less than %ds' % (video_title, duration, min_duration)
+            max_duration = self.params.get('max_duration')
+            if max_duration is not None:
+                if duration is None:
+                    return 'Skipping %s, because its duration is unknown and max_duration is specified' % (video_title)
+                if duration > max_duration:
+                    return 'Skipping %s, because its duration (%ds) is more than %ds' % (video_title, duration, max_duration)
             match_filter = self.params.get('match_filter')
             if match_filter is not None:
                 ret = match_filter(info_dict)

youtube_dl/__init__.py

@@ -150,6 +150,12 @@ def _real_main(argv=None):
         if numeric_limit is None:
             parser.error('invalid rate limit specified')
         opts.ratelimit = numeric_limit
+    if opts.min_duration is not None:
+        if opts.min_duration <= 0:
+            parser.error('invalid min_duration specified')
+    if opts.max_duration is not None:
+        if opts.max_duration <= 0:
+            parser.error('invalid max_duration specified')
     if opts.min_filesize is not None:
         numeric_limit = FileDownloader.parse_bytes(opts.min_filesize)
         if numeric_limit is None:
@@ -384,6 +390,8 @@ def _real_main(argv=None):
         'write_pages': opts.write_pages,
         'test': opts.test,
         'keepvideo': opts.keepvideo,
+        'min_duration': opts.min_duration,
+        'max_duration': opts.max_duration,
         'min_filesize': opts.min_filesize,
         'max_filesize': opts.max_filesize,
         'min_views': opts.min_views,

youtube_dl/options.py

@@ -279,6 +279,14 @@ def parseOpts(overrideArguments=None):
         '--max-downloads',
         dest='max_downloads', metavar='NUMBER', type=int, default=None,
         help='Abort after downloading NUMBER files')
+    selection.add_option(
+        '--min-duration',
+        metavar='SECONDS', dest='min_duration', type=int, default=None,
+        help='Do not download any videos smaller than duration, in seconds')
+    selection.add_option(
+        '--max-duration',
+        metavar='SECONDS', dest='max_duration', type=int, default=None,
+        help='Do not download any videos larger than duration, in seconds')
     selection.add_option(
         '--min-filesize',
         metavar='SIZE', dest='min_filesize', default=None,