X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=youtube_dl%2Fdownloader%2Fism.py;h=138564267ad17ee541fa1119fe7ae26d4eb6ad4b;hb=c989bdbef8fdcfd38d51b987a4c745479d02e2f2;hp=9b001ecff4f407a94f74b59a8e1505ed27fd9d03;hpb=eee1692ff3d811101fbfa996e118ee397ddeb248;p=youtube-dl

diff --git a/youtube_dl/downloader/ism.py b/youtube_dl/downloader/ism.py
index 9b001ecff..138564267 100644
--- a/youtube_dl/downloader/ism.py
+++ b/youtube_dl/downloader/ism.py
@@ -139,7 +139,7 @@ def write_piff_header(stream, params):
         sample_entry_payload += u16.pack(0x18)  # depth
         sample_entry_payload += s16.pack(-1)  # pre defined
 
-        codec_private_data = binascii.unhexlify(params['codec_private_data'])
+        codec_private_data = binascii.unhexlify(params['codec_private_data'].encode('utf-8'))
         if fourcc in ('H264', 'AVC1'):
             sps, pps = codec_private_data.split(u32.pack(1))[1:]
             avcc_payload = u8.pack(1)  # configuration version