From 81aeafeb44a16b341e47c3bb85d288252a095eda Mon Sep 17 00:00:00 2001
From: Remita Amine <remitamine@gmail.com>
Date: Thu, 2 Feb 2017 08:07:06 +0100
Subject: [PATCH] [cbc:watch] extract audio codec for audion only formats(fixes
 #11893)

---
 youtube_dl/extractor/cbc.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/youtube_dl/extractor/cbc.py b/youtube_dl/extractor/cbc.py
index a291685bf..cf678e7f8 100644
--- a/youtube_dl/extractor/cbc.py
+++ b/youtube_dl/extractor/cbc.py
@@ -296,6 +296,12 @@ def _real_extract(self, url):
         formats = self._extract_m3u8_formats(re.sub(r'/([^/]+)/[^/?]+\.m3u8', r'/\1/\1.m3u8', m3u8_url), video_id, 'mp4', fatal=False)
         if len(formats) < 2:
             formats = self._extract_m3u8_formats(m3u8_url, video_id, 'mp4')
+        for f in formats:
+            format_id = f.get('format_id')
+            if format_id.startswith('AAC'):
+                f['acodec'] = 'aac'
+            elif format_id.startswith('AC3'):
+                f['acodec'] = 'ac-3'
         self._sort_formats(formats)
 
         info = {