Deactivated by default since secret is not encrypted.

To use it (for test purpose only):
./vlc --keystore=plaintext --keystore-plaintext-file=<my_file> <url>

For future plaintext module.

as in 2012 spec

Since n2.9-dev-1400-g31741ae, the VLC avcodec plug-in will fail to
initialize hwaccel. This is by FFmpeg design.

If block comes from sys from previous read
and reaches zero payload, it will be double freed.

(happens when removing stream_filters between
demux/access)

Factor and move code entirely to VLCPlaylist.

close #16303

Implementation is the same for both menu items. Menu validation
is used to check before if an item is a local file and existing.
Action is passed from main menu via responder chain to playlist.

Improves even more from previous commit (by ~2x on 4K)

Improves startcode lookup by ~80%
(statistically/zero dependent)

sys should always be set (but lets assert if not), buf == NULL
should not be called from VLC as well. And the return value was
kind of wrong.

This implements IETF RFC7639, i.e. the ALPN HTTP header field.

errSSLClosedGraceful does not seem to be a valid return code
for this function.

This is no warning, but normal behaviour.

GCC 5.x defaults to -std=gnu11, which changes the __inline keyword
semantics, causing some iconv functions not to be inlined, but they are
not declared as exported, thus causing linking to iconv to fail

If an /etc/asound.conf or $HOME/.asoundrc creates devices, those do not have a
description (a null pointer is returned). Relatedly, redefining the "default"
device results in it being listed without a description, thus disabling the
code that adds "default" WITH a description.
Possibly fixes other problems where ALSA devices with a NULL
description are disregarded. In Qt4 config, the NULL check is in
StringListConfigControl::finish().
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>