avcodec/dvbsubdec: simplify code by using OFFSET() macro

Signed-off-by: Limin Wang <lance.lmwang@gmail.com>

diff --git a/libavcodec/dvbsubdec.c b/libavcodec/dvbsubdec.c
index f63a1f3bf698945bef587abb49304ef36a8827fb..af6c78adf555121f7d2a896cb6cb09fae75f592f 100644 (file)
--- a/libavcodec/dvbsubdec.c
+++ b/libavcodec/dvbsubdec.c
@@ -1730,10 +1730,11 @@ end:
 }
 
 #define DS AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_SUBTITLE_PARAM
+#define OFFSET(x) offsetof(DVBSubContext, x)
 static const AVOption options[] = {
-    {"compute_edt", "compute end of time using pts or timeout", offsetof(DVBSubContext, compute_edt), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, DS},
-    {"compute_clut", "compute clut when not available(-1) or always(1) or never(0)", offsetof(DVBSubContext, compute_clut), AV_OPT_TYPE_BOOL, {.i64 = -1}, -1, 1, DS},
-    {"dvb_substream", "", offsetof(DVBSubContext, substream), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 63, DS},
+    {"compute_edt", "compute end of time using pts or timeout", OFFSET(compute_edt), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, DS},
+    {"compute_clut", "compute clut when not available(-1) or always(1) or never(0)", OFFSET(compute_clut), AV_OPT_TYPE_BOOL, {.i64 = -1}, -1, 1, DS},
+    {"dvb_substream", "", OFFSET(substream), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 63, DS},
     {NULL}
 };
 static const AVClass dvbsubdec_class = {