libass: rename types to match upstream

Rename types and add compatibility macro for old libass versions.
Signed-off-by: Laurent Aimar <fenrir@videolan.org>
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

Cherry-picked from e8189268

modules/codec/libass.c

@@ -48,6 +48,14 @@
 #   include <vlc_charset.h>
 #endif
 
+/* Compatibility with old libass */
+#if !defined(LIBASS_VERSION) || LIBASS_VERSION < 0x00907010
+#   define ASS_Renderer    ass_renderer_t
+#   define ASS_Library     ass_library_t
+#   define ASS_Track       ass_track_t
+#   define ASS_Image       ass_image_t
+#endif
+
 /*****************************************************************************
  * Module descriptor
  *****************************************************************************/
@@ -73,13 +81,13 @@ static void UpdateRegions( spu_t *,
                            subpicture_t *, const video_format_t *, mtime_t );
 
 /* Yes libass sux with threads */
-typedef struct 
+typedef struct
 {
     vlc_object_t   *p_libvlc;
 
     int             i_refcount;
-    ass_library_t   *p_library;
-    ass_renderer_t  *p_renderer;
+    ASS_Library     *p_library;
+    ASS_Renderer    *p_renderer;
     video_format_t  fmt;
 } ass_handle_t;
 static ass_handle_t *AssHandleHold( decoder_t *p_dec );
@@ -98,7 +106,7 @@ struct decoder_sys_t
     ass_handle_t *p_ass;
 
     /* */
-    ass_track_t  *p_track;
+    ASS_Track    *p_track;
 
     /* */
     subpicture_t *p_spu_final;
@@ -122,9 +130,9 @@ typedef struct
     int y1;
 } rectangle_t;
 
-static int BuildRegions( spu_t *p_spu, rectangle_t *p_region, int i_max_region, ass_image_t *p_img_list, int i_width, int i_height );
+static int BuildRegions( spu_t *p_spu, rectangle_t *p_region, int i_max_region, ASS_Image *p_img_list, int i_width, int i_height );
 static void SubpictureReleaseRegions( spu_t *p_spu, subpicture_t *p_subpic );
-static void RegionDraw( subpicture_region_t *p_region, ass_image_t *p_img );
+static void RegionDraw( subpicture_region_t *p_region, ASS_Image *p_img );
 
 static vlc_mutex_t libass_lock = VLC_STATIC_MUTEX;
 
@@ -137,7 +145,7 @@ static int Create( vlc_object_t *p_this )
 {
     decoder_t *p_dec = (decoder_t *)p_this;
     decoder_sys_t *p_sys;
-    ass_track_t *p_track;
+    ASS_Track *p_track;
 
     if( p_dec->fmt_in.i_codec != VLC_FOURCC('s','s','a',' ') )
         return VLC_EGENERIC;
@@ -361,8 +369,8 @@ static void UpdateRegions( spu_t *p_spu, subpicture_t *p_subpic,
     /* */
     const mtime_t i_stream_date = p_subpic->p_sys->i_pts + (i_ts - p_subpic->i_start);
     int i_changed;
-    ass_image_t *p_img = ass_render_frame( p_ass->p_renderer, p_sys->p_track,
-                                           i_stream_date/1000, &i_changed );
+    ASS_Image *p_img = ass_render_frame( p_ass->p_renderer, p_sys->p_track,
+                                         i_stream_date/1000, &i_changed );
 
     if( !i_changed && !b_fmt_changed &&
         (p_img != NULL) == (p_subpic->p_region != NULL) )
@@ -430,7 +438,7 @@ static rectangle_t r_create( int x0, int y0, int x1, int y1 )
     rectangle_t r = { x0, y0, x1, y1 };
     return r;
 }
-static rectangle_t r_img( const ass_image_t *p_img )
+static rectangle_t r_img( const ASS_Image *p_img )
 {
     return r_create( p_img->dst_x, p_img->dst_y, p_img->dst_x+p_img->w, p_img->dst_y+p_img->h );
 }
@@ -451,9 +459,9 @@ static bool r_overlap( const rectangle_t *a, const rectangle_t *b, int i_dx, int
             __MAX(a->y0-i_dy, b->y0) < __MIN( a->y1+i_dy, b->y1 );
 }
 
-static int BuildRegions( spu_t *p_spu, rectangle_t *p_region, int i_max_region, ass_image_t *p_img_list, int i_width, int i_height )
+static int BuildRegions( spu_t *p_spu, rectangle_t *p_region, int i_max_region, ASS_Image *p_img_list, int i_width, int i_height )
 {
-    ass_image_t *p_tmp;
+    ASS_Image *p_tmp;
     int i_count;
 
     VLC_UNUSED(p_spu);
@@ -467,7 +475,7 @@ static int BuildRegions( spu_t *p_spu, rectangle_t *p_region, int i_max_region,
     if( i_count <= 0 )
         return 0;
 
-    ass_image_t **pp_img = calloc( i_count, sizeof(*pp_img) );
+    ASS_Image **pp_img = calloc( i_count, sizeof(*pp_img) );
     if( !pp_img )
         return 0;
 
@@ -500,7 +508,7 @@ static int BuildRegions( spu_t *p_spu, rectangle_t *p_region, int i_max_region,
             b_ok = false;
             for( n = 0; n < i_count; n++ )
             {
-                ass_image_t *p_img = pp_img[n];
+                ASS_Image *p_img = pp_img[n];
                 if( !p_img )
                     continue;
                 rectangle_t r = r_img( p_img );
@@ -576,7 +584,7 @@ static int BuildRegions( spu_t *p_spu, rectangle_t *p_region, int i_max_region,
     return i_region;
 }
 
-static void RegionDraw( subpicture_region_t *p_region, ass_image_t *p_img )
+static void RegionDraw( subpicture_region_t *p_region, ASS_Image *p_img )
 {
     const plane_t *p = &p_region->p_picture->p[0];
     const int i_x = p_region->i_x;
@@ -655,8 +663,8 @@ static ass_handle_t *AssHandleHold( decoder_t *p_dec )
     vlc_mutex_lock( &libass_lock );
 
     ass_handle_t *p_ass = NULL;
-    ass_library_t *p_library = NULL;
-    ass_renderer_t *p_renderer = NULL;
+    ASS_Library *p_library = NULL;
+    ASS_Renderer *p_renderer = NULL;
     vlc_value_t val;
 
     var_Create( p_dec->p_libvlc, "libass-handle", VLC_VAR_ADDRESS );
@@ -836,4 +844,3 @@ static void AssHandleRelease( ass_handle_t *p_ass )
     vlc_mutex_unlock( &libass_lock );
     free( p_ass );
 }
-