From 580d3274e50d9cca79189689ba53db7295ea267c Mon Sep 17 00:00:00 2001
From: pukkandan <pukkandan.ytdlp@gmail.com>
Date: Sat, 16 Oct 2021 20:13:23 +0530
Subject: [PATCH] [youtube] Expose different formats with same itag

---
 yt_dlp/downloader/common.py | 1 -
 yt_dlp/extractor/youtube.py | 9 +++++++--
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/yt_dlp/downloader/common.py b/yt_dlp/downloader/common.py
index 96b78a968..9081794db 100644
--- a/yt_dlp/downloader/common.py
+++ b/yt_dlp/downloader/common.py
@@ -1,6 +1,5 @@
 from __future__ import division, unicode_literals
 
-import copy
 import os
 import re
 import time
diff --git a/yt_dlp/extractor/youtube.py b/yt_dlp/extractor/youtube.py
index 1ef80445e..dc9aa8ab7 100644
--- a/yt_dlp/extractor/youtube.py
+++ b/yt_dlp/extractor/youtube.py
@@ -2692,7 +2692,9 @@ def guess_quality(f):
                     itag = self._search_regex(
                         r'/itag/(\d+)', f['url'], 'itag', default=None)
                     if itag in itags:
-                        continue
+                        itag += '-hls'
+                        if itag in itags:
+                            continue
                     if itag:
                         f['format_id'] = itag
                         itags.append(itag)
@@ -2704,8 +2706,11 @@ def guess_quality(f):
                 for f in self._extract_mpd_formats(dash_manifest_url, video_id, fatal=False):
                     itag = f['format_id']
                     if itag in itags:
-                        continue
+                        itag += '-dash'
+                        if itag in itags:
+                            continue
                     if itag:
+                        f['format_id'] = itag
                         itags.append(itag)
                     f['quality'] = guess_quality(f)
                     filesize = int_or_none(self._search_regex(