我需要这个 cookie，所以我可以从 m3u8 文件下载流，（它有这一行
#EXT-X-KEY:METHOD=AES-128,URI="https://xxx/myStream.php?wowzasessionid=861683502"
所以我能把钥匙弄对吗？（我有该网站的登录凭据 cookie）
根据这个讨论，它就在那里，我检查了github上的代码，它有选项。
但是当我使用默认选项编译它时，没有 cookie 选项。我如何打开它？
> ./ffmpeg -buildconf
ffmpeg version N-61050-g2dcaa1b Copyright (c) 2000-2014 the FFmpeg developers
built on Mar 3 2014 14:31:05 with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-3)
configuration:
libavutil 52. 66.100 / 52. 66.100
libavcodec 55. 52.102 / 55. 52.102
libavformat 55. 33.100 / 55. 33.100
libavdevice 55. 10.100 / 55. 10.100
libavfilter 4. 2.100 / 4. 2.100
libswscale 2. 5.101 / 2. 5.101
libswresample 0. 18.100 / 0. 18.100
configuration:
> ffmpeg -cookies
/sww/gfx/lib64/python2.6/pytz/__init__.py:32: UserWarning: Module argparse was already imported from /sww/tools/lib64/python2.6/argparse.py, but /usr/lib/python2.6/site-packages is being added to sys.path
from pkg_resources import resource_stream
ffmpeg version 1.2 Copyright (c) 2000-2013 the FFmpeg developers
built on Mar 22 2013 09:58:42 with gcc 4.1.2 (GCC) 20080704 (Red Hat 4.1.2-44)
configuration: --prefix=/dept/srd/vendor/ffmpeg/bundle.rhel5/ffmpeg1.2.0 --enable-static --enable-pthreads --enable-gpl --disable-ffserver --disable-ffplay --disable-ffprobe --extra-cflags=-I/dept/srd/vendor/ffmpeg/extern/rhel5/include --extra-ldflags=-L/dept/srd/vendor/ffmpeg/extern/rhel5/lib --enable-x11grab --enable-libx264 --enable-nonfree --enable-fontconfig --enable-libfreetype --enable-swscale --enable-libmp3lame --enable-libfaac
libavutil 52. 18.100 / 52. 18.100
libavcodec 54. 92.100 / 54. 92.100
libavformat 54. 63.104 / 54. 63.104
libavdevice 54. 3.103 / 54. 3.103
libavfilter 3. 42.103 / 3. 42.103
libswscale 2. 2.100 / 2. 2.100
libswresample 0. 17.102 / 0. 17.102
libpostproc 52. 2.100 / 52. 2.100
Unrecognized option 'cookies'.
Error splitting the argument list: Option not found