gst: fix callback prototypes

modules/codec/gstreamer/gstvlcpictureplaneallocator.c

@@ -42,9 +42,9 @@ static void gst_vlc_picture_plane_allocator_free( GstAllocator *p_allocator,
         GstMemory *p_gmem);
 static gpointer gst_vlc_picture_plane_map( GstMemory *p_gmem,
         gsize i_maxsize, GstMapFlags flags );
-static gboolean gst_vlc_picture_plane_unmap( GstVlcPicturePlane *p_mem );
+static void gst_vlc_picture_plane_unmap( GstMemory *p_mem );
 static GstMemory* gst_vlc_picture_plane_copy(
-        GstVlcPicturePlane *p_mem, gssize i_offset, gssize i_size );
+        GstMemory *p_mem, gssize i_offset, gssize i_size );
 
 #define GST_VLC_PICTURE_PLANE_ALLOCATOR_NAME "vlcpictureplane"
 
@@ -69,9 +69,9 @@ static void gst_vlc_picture_plane_allocator_init(
     GstAllocator *p_alloc = GST_ALLOCATOR_CAST( p_allocator );
 
     p_alloc->mem_type = GST_VLC_PICTURE_PLANE_ALLOCATOR_NAME;
-    p_alloc->mem_map = (GstMemoryMapFunction) gst_vlc_picture_plane_map;
-    p_alloc->mem_unmap = (GstMemoryUnmapFunction) gst_vlc_picture_plane_unmap;
-    p_alloc->mem_copy = (GstMemoryShareFunction) gst_vlc_picture_plane_copy;
+    p_alloc->mem_map = gst_vlc_picture_plane_map;
+    p_alloc->mem_unmap = gst_vlc_picture_plane_unmap;
+    p_alloc->mem_copy = gst_vlc_picture_plane_copy;
     /* fallback is_span */
 
     GST_OBJECT_FLAG_SET( p_allocator, GST_ALLOCATOR_FLAG_CUSTOM_ALLOC );
@@ -116,15 +116,13 @@ static gpointer gst_vlc_picture_plane_map( GstMemory *p_gmem,
         return NULL;
 }
 
-static gboolean gst_vlc_picture_plane_unmap(
-        GstVlcPicturePlane *p_mem )
+static void gst_vlc_picture_plane_unmap( GstMemory *p_mem )
 {
     VLC_UNUSED( p_mem );
-    return TRUE;
 }
 
 static GstMemory* gst_vlc_picture_plane_copy(
-        GstVlcPicturePlane *p_mem, gssize i_offset, gssize i_size )
+        GstMemory *p_mem, gssize i_offset, gssize i_size )
 {
     VLC_UNUSED( p_mem );
     VLC_UNUSED( i_offset );