GitLab

http://msdn.microsoft.com/en-us/library/b0084kay(v=vs.80).aspx only
mentions the _ prefixed variable.

gcc will always define the _ prefixed variable, like Visual Studio.
The prefixless one is defined in some language standards, e.g. gnu99
but not c99.

According to documentation, must be colon separated instead of commas.
Also removes list enclosure.

module_list_get() can return NULL, callers cannot assume that the table
is NULL-terminated (NULL is not NULL-terminated table).

bitrate

Also shows possible warning for non native muxers.

Close #5769
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

VP8/webm profile defaults to 720p, which could be reasonable default imo.
Not sure if people want to it to default to same resolution as input is.

Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

Note that "avformat{mux=mjpeg}" is also valid.
(cherry picked from commit f69af253a4fe0dbf4121c4a320d01adb1c6d0cab)
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>