[vlc-devel] [vlc-commits] skins2: ensure playlist gets stopped before terminating vlc.
ajanni at videolabs.io
Mon Dec 2 09:20:15 CET 2019
Actually stopping the playlist wont kill the video output
module, only killing the input resource, meaning releasing
the vlc_player will do.
However, player and playlist might be used by multiple
control interface and this problem is only a concern for
the one providing the vout_window. Hence I believe it must
be solved by the mechanism providing the window instead of
relying on a much wider API like playlist and player.
I wrote part of it that I shared as a github branch some
weeks ago, but it is not complete yet. I had also explored
alternative solution like a vlc_player_disable-like
mechanism (that I called vlc_player_ResetResource iirc) but
I find it not very elegant.
Is skins2 interface embedded work using interface_widget
from the Qt interface?
On Fri, Nov 29, 2019 at 11:13:21PM +0100, erwan.tulou at gmail.com wrote:
> On 29/11/2019 20:09, Rémi Denis-Courmont wrote:
> > Le perjantaina 29. marraskuuta 2019, 20.43.29 EET Erwan Tulou a écrit :
> > > vlc | branch: master | Erwan Tulou <erwan10 at videolan.org> | Fri Nov 29
> > > 19:32:25 2019 +0100| [0594abc06cb1a57548a7c3bf977e3071e64ef022] |
> > > committer: Erwan Tulou
> > >
> > > skins2: ensure playlist gets stopped before terminating vlc.
> > >
> > > > http://git.videolan.org/gitweb.cgi/vlc.git/?a=commit;h=0594abc06cb1a57548a
> > > > 7c3bf977e3071e64ef022
> > > ---
> > >
> > > modules/gui/skins2/src/skin_main.cpp | 6 ++++++
> > > 1 file changed, 6 insertions(+)
> > >
> > > diff --git a/modules/gui/skins2/src/skin_main.cpp
> > > b/modules/gui/skins2/src/skin_main.cpp index 087dd82cc0..d52e904d8d 100644
> > > --- a/modules/gui/skins2/src/skin_main.cpp
> > > +++ b/modules/gui/skins2/src/skin_main.cpp
> > > @@ -143,6 +143,12 @@ static void Close( vlc_object_t *p_this )
> > >
> > > msg_Dbg( p_intf, "closing skins2 module" );
> > >
> > > + // ensure the playlist is stopped
> > > + vlc_playlist_t *playlist = vlc_intf_GetMainPlaylist( p_intf );
> > > + vlc_playlist_Lock( playlist );
> > > + vlc_playlist_Stop ( playlist );
> > > + vlc_playlist_Unlock( playlist );
> > This does not guarantee that the playlist is stopped, only that it was stopped
> > until the Unlock. This whole patch does not make sense to me.
> Yes, this is a lame way to work out a problem and it actually only solve one
> part of the problem. (so far, the Qt interface does not offer a better
> solution in that matter).
> Ideally, once libvlc_Quit() is issued, the right order of disabling/removing
> thing seems the following :
> - disable the playlist (which means : stop all inputs, free all resources
> such as vout and make sure it cannot start again)
> - stop and desallocate the interfaces
> - desallocate the playlist
> In particular, it is important that all vouts be freed __before__ the
> interfaces are gone, because the window ids have to remain valid (embedded
> video) as long as the vout are alive.
> maybe coding a vlc_playlist_disable() to be called first thing is the
> solution ... any suggestions ?
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