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>

This is not loaded from a xib anymore, but rather manually.

Like all other panels.

Removes old complicated data model for codecs list, and replaces
it by a new and cleaner implementation. And there is no need to
hold dozens of input item references...

Uses NSWindowController to load the information panel. Get rid of
the singleton. VLCMain will now hold one instance, which is aimed
to display information about the currently playing media.

This reverts commit 6e1c08a2.
There are no leaks. All pointers must be NULL in the involved case.