[Spice-devel] [spice-gtk v7 3/3] spicy: implement preferred video codec type

Victor Toso victortoso at redhat.com
Wed Feb 8 09:47:57 UTC 2017


Hi,

On Mon, Feb 06, 2017 at 06:32:21PM +0100, Pavel Grunt wrote:
> On Mon, 2017-02-06 at 17:52 +0100, Pavel Grunt wrote:
> > On Mon, 2017-02-06 at 12:06 +0100, Victor Toso wrote:
> > > From: Victor Toso <me at victortoso.com>
> > > 
> > > Similar to preferred video compression, a radio button showing
> > > mjpeg,
> > > vp8, vp9 and h264 in case server has the proper [0] capability
> > > 
> > > [0] SPICE_DISPLAY_CAP_PREF_VIDEO_CODEC_TYPE
> > > 
> > > Signed-off-by: Victor Toso <victortoso at redhat.com>
> > > ---
> > >  tools/spicy.c | 64
> > > +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> > >  1 file changed, 64 insertions(+)
> > > 
> > > diff --git a/tools/spicy.c b/tools/spicy.c
> > > index c502428..ce758a7 100644
> > > --- a/tools/spicy.c
> > > +++ b/tools/spicy.c
> > > @@ -651,6 +651,9 @@ static const GtkActionEntry entries[] = {
> > >          .name        = "CompressionMenu",
> > >          .label       = "_Preferred image compression",
> > >      },{
> > > +        .name        = "VideoCodecTypeMenu",
> > > +        .label       = "_Preferred video codec type",
> > > +    },{
> > >          .name        = "HelpMenu",
> > >          .label       = "_Help",
> > >      },{
> > > @@ -816,6 +819,26 @@ static const GtkRadioActionEntry
> > > compression_entries[] = {
> > >      }
> > >  };
> > >  
> > > +static const GtkRadioActionEntry video_codec_type_entries[] = {
> > > +    {
> > > +        .name  = "mjpeg",
> > > +        .label = "mjpeg",
> > > +        .value = SPICE_VIDEO_CODEC_TYPE_MJPEG,
> > 
> > if we had some structure like Frediano suggested, we could reuse it
> > here
> > > +    },{
> > > +        .name  = "vp8",
> > > +        .label = "vp8",
> > > +        .value = SPICE_VIDEO_CODEC_TYPE_VP8,
> > > +    },{
> > > +        .name  = "vp9",
> > > +        .label = "vp9",
> > > +        .value = SPICE_VIDEO_CODEC_TYPE_VP9,
> > > +    },{
> > > +        .name  = "h264",
> > > +        .label = "h264",
> > > +        .value = SPICE_VIDEO_CODEC_TYPE_H264,
> > > +    }
> > > +};
> > > +
> > >  static char ui_xml[] =
> > >  "<ui>\n"
> > >  "  <menubar action='MainMenu'>\n"
> > > @@ -864,6 +887,12 @@ static char ui_xml[] =
> > >  #endif
> > >  "        <menuitem action='off'/>\n"
> > >  "      </menu>\n"
> > > +"      <menu action='VideoCodecTypeMenu'>\n"
> > > +"        <menuitem action='mjpeg'/>\n"
> > > +"        <menuitem action='vp8'/>\n"
> > > +"        <menuitem action='vp9'/>\n"
> > > +"        <menuitem action='h264'/>\n"
> > > +"      </menu>\n"
> > >  "    </menu>\n"
> > >  "    <menu action='HelpMenu'>\n"
> > >  "      <menuitem action='About'/>\n"
> > > @@ -916,6 +945,14 @@ static void compression_cb(GtkRadioAction
> > > *action G_GNUC_UNUSED,
> > >                                                 gtk_radio_action_g
> > > et
> > > _current_value(current));
> > >  }
> > >  
> > > +static void video_codec_type_cb(GtkRadioAction *action
> > > G_GNUC_UNUSED,
> > > +                                GtkRadioAction *current,
> > > +                                gpointer user_data)
> > > +{
> > > +    spice_display_change_preferred_video_codec_type(SPICE_CHANNEL
> > > (u
> > > ser_data),
> > > +                                                    gtk_radio_act
> > > io
> > > n_get_current_value(current));
> > > +}
> > > +
> > >  static void
> > >  spice_window_class_init (SpiceWindowClass *klass)
> > >  {
> > > @@ -970,6 +1007,33 @@ static SpiceWindow
> > > *create_spice_window(spice_connection *conn, SpiceChannel *ch
> > >          GtkAction *compression_menu_action =
> > > gtk_action_group_get_action(win->ag, "CompressionMenu");
> > >          gtk_action_set_sensitive(compression_menu_action, FALSE);
> > >      }
> > > +    gtk_action_group_add_radio_actions(win->ag,
> > > video_codec_type_entries,
> > > +                                       G_N_ELEMENTS(video_codec_t
> > > yp
> > > e_entries), -1,
> > > +                                       G_CALLBACK(video_codec_typ
> > > e_
> > > cb), win->display_channel);
> > > +    if (!spice_channel_test_capability(win->display_channel,
> > > +                                       SPICE_DISPLAY_CAP_PREF_VID
> > > EO_CODEC_TYPE)) {
> > > +        GtkAction *video_codec_type_menu_action =
> > > +            gtk_action_group_get_action(win->ag,
> > > "VideoCodecTypeMenu");
> > > +        gtk_action_set_sensitive(video_codec_type_menu_action,
> > > FALSE);
> > > +    } else {
> > > +        gint i;
> > 
> > it should be unsigne
> > > +        static const struct {
> > > +            gint cap;
> > > +            const gchar name[8];
> > > +        } display_codecs[] = {
> > > +            {SPICE_DISPLAY_CAP_CODEC_MJPEG, "mjpeg"},
> > > +            {SPICE_DISPLAY_CAP_CODEC_VP8, "vp8"},
> > > +            {SPICE_DISPLAY_CAP_CODEC_H264, "h264"},
> > > +            {SPICE_DISPLAY_CAP_CODEC_VP9, "vp9"},
> > > +        };
> > > +        for (i = 0; i < G_N_ELEMENTS(display_codecs); i++) {
> > > +            if (!spice_channel_test_capability(win-
> > > > display_channel, display_codecs[i].cap)) {
> > 
> > isn't the condition wrong ?
> > 
> > The menu is gray all the time for me...
> the gray menu is another issue, the problem is that
> spice_channel_test_capability() tests remote caps (c->remote_caps) but
> spicy is interested in local caps (c->caps)

So, after discussing a bit, it makes sense to introduce a new API to
check the local caps [0] and fix it [1] but as spicy is a testing tool
we can avoid this new API for the moment.

[0] https://gitlab.com/victortoso/spice-gtk/commit/022e8d2aa35a8e7
[1] https://gitlab.com/victortoso/spice-gtk/commit/cabdc4dc6b66eec

I'll remove the else { } chunk completely. The preferred-video-codec
menu will gray out without SPICE_DISPLAY_CAP_PREF_VIDEO_CODEC_TYPE but
its submenus will not, for now.

I'll be sending the patch for sanity check in-reply-to this one.

Cheers,
  toso

> 
> > 
> > Pavel
> > 
> > > +                GtkAction *action =
> > > gtk_action_group_get_action(win->ag, display_codecs[i].name);
> > > +                gtk_action_set_sensitive(action, TRUE);
> > > +            }
> > > +        }
> > > +    }
> > > +
> > >      gtk_ui_manager_insert_action_group(win->ui, win->ag, 0);
> > >      gtk_window_add_accel_group(GTK_WINDOW(win->toplevel),
> > >                                 gtk_ui_manager_get_accel_group(win
> > > -
> > > > ui));
> > 
> > 
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