Added AVClass for AVSubtitleRect

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/avcodec.h

@@ -3291,6 +3291,14 @@ const AVClass *avcodec_get_class(void);
  */
 const AVClass *avcodec_get_frame_class(void);
 
+/**
+ * Get the AVClass for AVSubtitleRect. It can be used in combination with
+ * AV_OPT_SEARCH_FAKE_OBJ for examining options.
+ *
+ * @see av_opt_find().
+ */
+const AVClass *avcodec_get_subtitle_rect_class(void);
+
 /**
  * Copy the settings of the source AVCodecContext into the destination
  * AVCodecContext. The resulting destination codec context will be

libavcodec/options.c

@@ -255,3 +255,26 @@ const AVClass *avcodec_get_frame_class(void)
 {
     return &av_frame_class;
 }
+
+#define SROFFSET(x) offsetof(AVSubtitleRect,x)
+
+static const AVOption subtitle_rect_options[]={
+{"x", "", SROFFSET(x), AV_OPT_TYPE_INT, {.dbl = 0 }, 0, INT_MAX, 0},
+{"y", "", SROFFSET(y), AV_OPT_TYPE_INT, {.dbl = 0 }, 0, INT_MAX, 0},
+{"w", "", SROFFSET(w), AV_OPT_TYPE_INT, {.dbl = 0 }, 0, INT_MAX, 0},
+{"h", "", SROFFSET(h), AV_OPT_TYPE_INT, {.dbl = 0 }, 0, INT_MAX, 0},
+{"type", "", SROFFSET(type), AV_OPT_TYPE_INT, {.dbl = 0 }, 0, INT_MAX, 0},
+{NULL},
+};
+
+static const AVClass av_subtitle_rect_class = {
+    .class_name             = "AVSubtitleRect",
+    .item_name              = NULL,
+    .option                 = subtitle_rect_options,
+    .version                = LIBAVUTIL_VERSION_INT,
+};
+
+const AVClass *avcodec_get_subtitle_rect_class(void)
+{
+    return &av_subtitle_rect_class;
+}