Provide a way to specify the video codecs.

Acked-by: Frediano Ziglio <fziglio@redhat.com>

src/options.c

@@ -80,6 +80,7 @@ void options_free(options_t *options)
     str_replace(&options->on_connect, NULL);
     str_replace(&options->on_disconnect, NULL);
     str_replace(&options->user_config_file, NULL);
+    str_replace(&options->codecs, NULL);
 }
 
 
@@ -396,6 +397,7 @@ static void options_from_config(options_t *options)
     g_free(trust_damage);
 
     options->full_screen_fps = int_option(userkey, systemkey, "spice", "full-screen-fps");
+    string_option(&options->codecs, userkey, systemkey, "spice", "codecs");
 
 #if defined(HAVE_LIBAUDIT_H)
     /* Pick an arbitrary default in the user range.  CodeWeavers was founed in 1996, so 1196 it is... */

src/options.h

@@ -62,6 +62,7 @@ typedef struct {
     char *uinput_path;
     char *on_connect;
     char *on_disconnect;
+    char *codecs;
     int audit;
     int audit_message_type;
     damage_trust_t trust_damage;

src/spice.c

@@ -565,6 +565,9 @@ static void set_options(spice_t *s, options_t *options)
     if (options->spice_password)
         spice_server_set_ticket(s->server, options->spice_password, 0, 0, 0);
 
+    if (options->codecs)
+        spice_server_set_video_codecs(s->server, options->codecs);
+
     spice_server_set_exit_on_disconnect(s->server, options->exit_on_disconnect);
 
 }

src/xdg/x11spice/x11spice.conf

@@ -111,6 +111,19 @@
 #-----------------------------------------------------------------------------
 #full-screen-fps=0
 
+#-----------------------------------------------------------------------------
+# codecs
+#           This configuration field allows you to specify which
+#           spice codecs to use.  An example specification is:
+#             gstreamer:vp8;gstreamer:h264;spice:mjpeg
+#           which specifies vp8 first, followed by h264, and then by
+#           traditional spice mjpeg encoding.
+#           If no codecs are given, we will allow Spice to choose
+#           a reasonable default, which is usually spice:mjpeg.
+#           Default blank.
+#-----------------------------------------------------------------------------
+#codecs=spice:mjpeg
+
 #-----------------------------------------------------------------------------
 # minimize  Starts the x11spice gui minimized.  Default false.
 #-----------------------------------------------------------------------------