(Forward port of [17371]) Implement Aspect Ratio property for Mozilla plugin

include/vlc/libvlc.h

@@ -137,10 +137,12 @@ void libvlc_destroy( libvlc_instance_t *, libvlc_exception_t * );
  * LibVLC Playlist handling
  * @{
  */
+
 /**
  * Set loop variable
  */
 void libvlc_playlist_loop( libvlc_instance_t* , vlc_bool_t, libvlc_exception_t * );
+
 /**
  * Start playing. You can give some additionnal playlist item options
  * that will be added to the item before playing it.
@@ -332,6 +334,22 @@ int libvlc_video_get_height( libvlc_input_t *, libvlc_exception_t * );
  */
 int libvlc_video_get_width( libvlc_input_t *, libvlc_exception_t * );
 
+/**
+ * Get current video aspect ratio
+ * \param p_input the input
+ * \param p_exception an initialized exception
+ * \return the video aspect ratio
+ */
+char *libvlc_video_get_aspect_ratio( libvlc_input_t *, libvlc_exception_t * );
+
+/**
+ * Set new video aspect ratio
+ * \param p_input the input
+ * \param psz_aspect new video aspect-ratio
+ * \param p_exception an initialized exception
+ */
+void libvlc_video_set_aspect_ratio( libvlc_input_t *, char *, libvlc_exception_t * );
+
 /**
  * Take a snapshot of the current video window
  * \param p_input the input
@@ -342,7 +360,6 @@ void libvlc_video_take_snapshot( libvlc_input_t *, char *, libvlc_exception_t *
 
 int libvlc_video_destroy( libvlc_input_t *, libvlc_exception_t *);
 
-    
 /**
  * Resize the current video output window
  * \param p_instance libvlc instance
@@ -453,7 +470,6 @@ vlc_bool_t libvlc_audio_get_mute( libvlc_instance_t *, libvlc_exception_t * );
  */
 void libvlc_audio_set_mute( libvlc_instance_t *, vlc_bool_t , libvlc_exception_t * );
 
-
 /**
  * Get current audio level
  * \param p_instance libvlc instance
@@ -462,7 +478,6 @@ void libvlc_audio_set_mute( libvlc_instance_t *, vlc_bool_t , libvlc_exception_t
  */
 int libvlc_audio_get_volume( libvlc_instance_t *, libvlc_exception_t * );
 
-
 /**
  * Set current audio level
  * \param p_instance libvlc instance
@@ -539,9 +554,6 @@ void libvlc_vlm_set_input( libvlc_instance_t *, char *, char*,
 void libvlc_vlm_set_loop( libvlc_instance_t *, char *, int,
                           libvlc_exception_t *);
 
-
-
-
 /**
  * Edit the parameters of a media. This will delete all existing inputs and
  * add the specified one.
@@ -574,7 +586,6 @@ void libvlc_vlm_play_media ( libvlc_instance_t *, char *, libvlc_exception_t * )
  */ 
 void libvlc_vlm_stop_media ( libvlc_instance_t *, char *, libvlc_exception_t * );
 
-    
 /**
  * Pauses the named broadcast.
  * \param p_instance the instance
@@ -643,6 +654,7 @@ typedef struct libvlc_log_message_t
     const char *psz_header;   /* optional header */
     const char *psz_message;  /* message */
 } libvlc_log_message_t;
+
 /**
  * Returns the VLC messaging verbosity level
  * \param p_instance libvlc instance

mozilla/control/npolibvlc.cpp

@@ -1078,7 +1078,7 @@ enum LibvlcPlaylistNPObjectMethodIds
     ID_next,
     ID_prev,
     ID_clear,
-    ID_removeitem,
+    ID_removeitem
 };
 
 RuntimeNPObject::InvokeResult LibvlcPlaylistNPObject::invoke(int index, const NPVariant *args, uint32_t argCount, NPVariant &result)
@@ -1460,6 +1460,7 @@ const NPUTF8 * const LibvlcVideoNPObject::propertyNames[] =
     "fullscreen",
     "height",
     "width",
+    "aspectRatio"
 };
 
 enum LibvlcVideoNPObjectPropertyIds
@@ -1467,6 +1468,7 @@ enum LibvlcVideoNPObjectPropertyIds
     ID_fullscreen,
     ID_height,
     ID_width,
+    ID_aspectratio
 };
 
 const int LibvlcVideoNPObject::propertyCount = sizeof(LibvlcVideoNPObject::propertyNames)/sizeof(NPUTF8 *);
@@ -1528,6 +1530,22 @@ RuntimeNPObject::InvokeResult LibvlcVideoNPObject::getProperty(int index, NPVari
                 INT32_TO_NPVARIANT(val, result);
                 return INVOKERESULT_NO_ERROR;
             }
+            case ID_aspectratio:
+            {
+                NPUTF8 *psz_aspect = libvlc_video_get_aspect_ratio(p_input, &ex);
+                libvlc_input_free(p_input);
+                if( libvlc_exception_raised(&ex) )
+                {
+                    NPN_SetException(this, libvlc_exception_get_message(&ex));
+                    libvlc_exception_clear(&ex);
+                    return INVOKERESULT_GENERIC_ERROR;
+                }
+                if( !psz_aspect )
+                    return INVOKERESULT_GENERIC_ERROR;
+
+                STRINGZ_TO_NPVARIANT(psz_aspect, result);
+                return INVOKERESULT_NO_ERROR;
+            }
         }
         libvlc_input_free(p_input);
     }
@@ -1571,6 +1589,33 @@ RuntimeNPObject::InvokeResult LibvlcVideoNPObject::setProperty(int index, const
                 }
                 return INVOKERESULT_NO_ERROR;
             }
+            case ID_aspectratio:
+            {
+                char *psz_aspect = NULL;
+
+                if( ! NPVARIANT_IS_STRING(value) )
+                {
+                    libvlc_input_free(p_input);
+                    return INVOKERESULT_INVALID_VALUE;
+                }
+
+                psz_aspect = stringValue(NPVARIANT_TO_STRING(value));
+                if( !psz_aspect )
+                    return INVOKERESULT_GENERIC_ERROR;
+
+                libvlc_video_set_aspect_ratio(p_input, psz_aspect, &ex);
+                if( psz_aspect )
+                    free(psz_aspect );
+
+                libvlc_input_free(p_input);
+                if( libvlc_exception_raised(&ex) )
+                {
+                    NPN_SetException(this, libvlc_exception_get_message(&ex));
+                    libvlc_exception_clear(&ex);
+                    return INVOKERESULT_GENERIC_ERROR;
+                }
+                return INVOKERESULT_NO_ERROR;
+            }
         }
         libvlc_input_free(p_input);
     }

src/control/video.c

@@ -210,7 +210,6 @@ vlc_bool_t libvlc_input_has_vout( libvlc_input_t *p_input,
     return VLC_TRUE;
 }
 
-
 int libvlc_video_reparent( libvlc_input_t *p_input, libvlc_drawable_t d,
                            libvlc_exception_t *p_e )
 {
@@ -319,6 +318,37 @@ void libvlc_video_set_viewport( libvlc_instance_t *p_instance,
     }
 }
 
+char *libvlc_video_get_aspect_ratio( libvlc_input_t *p_input,
+                                   libvlc_exception_t *p_e )
+{
+    char *psz_aspect = 0;
+    vout_thread_t *p_vout = GetVout( p_input, p_e );
+
+    if( !p_vout )
+        return 0;
+
+    psz_aspect = var_GetString( p_vout1, "aspect-ratio" );
+    vlc_object_release( p_vout );
+    return psz_aspect;
+}
+
+void libvlc_video_set_aspect_ratio( libvlc_input_t *p_input,
+                                    char *psz_aspect, libvlc_exception_t *p_e )
+{
+    vout_thread_t *p_vout = GetVout( p_input, p_e );
+    int i_ret = -1;
+
+    if( !p_vout )
+        return;
+
+    i_ret = var_SetString( p_vout, "aspect-ratio", psz_aspect );
+    if( i_ret )
+        libvlc_exception_raise( p_e,
+                        "Unexpected error while setting aspect-ratio value" );
+
+    vlc_object_release( p_vout );
+}
+
 int libvlc_video_destroy( libvlc_input_t *p_input,
                           libvlc_exception_t *p_e )
 {