- try:
- existing_format = next(
- fo for fo in formats
- if fo['format_id'] == representation_id)
- except StopIteration:
- full_info = formats_dict.get(representation_id, {}).copy()
- full_info.update(f)
- formats.append(full_info)
- else:
- existing_format.update(f)
+ # According to [1, 5.3.5.2, Table 7, page 35] @id of Representation
+ # is not necessarily unique within a Period thus formats with
+ # the same `format_id` are quite possible. There are numerous examples
+ # of such manifests (see https://github.com/rg3/youtube-dl/issues/15111,
+ # https://github.com/rg3/youtube-dl/issues/13919)
+ full_info = formats_dict.get(representation_id, {}).copy()
+ full_info.update(f)
+ formats.append(full_info)