[FFmpeg-user] "cookies" option doesn't seem to work.

[Benjamin Peng]

I'm trying to set cookies for a HLS request.

>ffmpeg -v 99 -cookies "test=blabla;" -i
https://del.thumva.com/hls/20200621-0005-05/index_1.m3u8

But the request doesn't actually include my cookie:

[https @ 00000000005f7100] request: GET /hls/20200621-0005-05/index_1.m3u8
HTTP/1.1
User-Agent: Lavf/58.51.100
Accept: */*
Range: bytes=0-
Connection: close
Host: del.thumva.com
Icy-MetaData: 1

If I use "headers" instead, it works fine:

>ffmpeg -v 99 -headers "Cookie: test=blabla;" -i
https://del.thumva.com/hls/20200621-0005-05/index_1.m3u8

[https @ 0000000000446040] request: GET /hls/20200621-0005-05/index_1.m3u8
HTTP/1.1
User-Agent: Lavf/58.51.100
Accept: */*
Range: bytes=0-
Connection: close
Host: del.thumva.com
Icy-MetaData: 1
Cookie: test=blabla;

Why is it like this? Did I understand the "cookies" option wrong?