@item post_data
Set custom HTTP post data.
-@item user-agent
@item user_agent
Override the User-Agent header. If not specified the protocol will use a
string describing the libavformat build. ("Lavf/<version>")
+@item user-agent
+This is a deprecated option, you can use user_agent instead it.
+
@item timeout
Set timeout in microseconds of socket I/O operations used by the underlying low level
operation. By default it is set to -1, which means that the timeout is