avformat/hashenc: Deduplicate (stream)hash options

Also saves relocations.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>

libavformat/hashenc.c

@@ -42,8 +42,8 @@ struct HashContext {
 #define FORMAT_VERSION_OPT \
     { "format_version", "file format version", OFFSET(format_version), AV_OPT_TYPE_INT, {.i64 = 2}, 1, 2, ENC }
 
-#if CONFIG_HASH_MUXER
-static const AVOption hash_options[] = {
+#if CONFIG_HASH_MUXER || CONFIG_STREAMHASH_MUXER
+static const AVOption hash_streamhash_options[] = {
     HASH_OPT("sha256"),
     { NULL },
 };
@@ -57,13 +57,6 @@ static const AVOption framehash_options[] = {
 };
 #endif
 
-#if CONFIG_STREAMHASH_MUXER
-static const AVOption streamhash_options[] = {
-    HASH_OPT("sha256"),
-    { NULL },
-};
-#endif
-
 #if CONFIG_MD5_MUXER
 static const AVOption md5_options[] = {
     HASH_OPT("md5"),
@@ -174,7 +167,7 @@ static void hash_free(struct AVFormatContext *s)
 static const AVClass hashenc_class = {
     .class_name = "hash muxer",
     .item_name  = av_default_item_name,
-    .option     = hash_options,
+    .option     = hash_streamhash_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
 
@@ -222,7 +215,7 @@ AVOutputFormat ff_md5_muxer = {
 static const AVClass streamhashenc_class = {
     .class_name = "stream hash muxer",
     .item_name  = av_default_item_name,
-    .option     = streamhash_options,
+    .option     = hash_streamhash_options,
     .version    = LIBAVUTIL_VERSION_INT,
 };