options: stop after option is found.

This reverts 78da04384a6c22820518706d84631006d31a85ea; it is not
required anymore since the previous commit (these extended checks were
for the -timecode option in both muxers and encoders), and reduces the
diff with the fork.

cmdutils.c

@@ -422,10 +422,10 @@ void parse_loglevel(int argc, char **argv, const OptionDef *options)
     }
 }
 
-#define FLAGS(o) ((o)->type == AV_OPT_TYPE_FLAGS) ? AV_DICT_APPEND : 0
+#define FLAGS (o->type == AV_OPT_TYPE_FLAGS) ? AV_DICT_APPEND : 0
 int opt_default(const char *opt, const char *arg)
 {
-    const AVOption *oc, *of, *os, *oswr = NULL;
+    const AVOption *o;
     char opt_stripped[128];
     const char *p;
     const AVClass *cc = avcodec_get_class(), *fc = avformat_get_class(), *sc, *swr_class;
@@ -434,18 +434,18 @@ int opt_default(const char *opt, const char *arg)
         p = opt + strlen(opt);
     av_strlcpy(opt_stripped, opt, FFMIN(sizeof(opt_stripped), p - opt + 1));
 
-    if ((oc = av_opt_find(&cc, opt_stripped, NULL, 0,
+    if ((o = av_opt_find(&cc, opt_stripped, NULL, 0,
                          AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ)) ||
         ((opt[0] == 'v' || opt[0] == 'a' || opt[0] == 's') &&
-         (oc = av_opt_find(&cc, opt + 1, NULL, 0, AV_OPT_SEARCH_FAKE_OBJ))))
-        av_dict_set(&codec_opts, opt, arg, FLAGS(oc));
-    if ((of = av_opt_find(&fc, opt, NULL, 0,
-                          AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ)))
-        av_dict_set(&format_opts, opt, arg, FLAGS(of));
+         (o = av_opt_find(&cc, opt + 1, NULL, 0, AV_OPT_SEARCH_FAKE_OBJ))))
+        av_dict_set(&codec_opts, opt, arg, FLAGS);
+    else if ((o = av_opt_find(&fc, opt, NULL, 0,
+                              AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ)))
+        av_dict_set(&format_opts, opt, arg, FLAGS);
 #if CONFIG_SWSCALE
     sc = sws_get_class();
-    if ((os = av_opt_find(&sc, opt, NULL, 0,
-                          AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
+    if (!o && (o = av_opt_find(&sc, opt, NULL, 0,
+                         AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
         // XXX we only support sws_flags, not arbitrary sws options
         int ret = av_opt_set(sws_opts, opt, arg, 0);
         if (ret < 0) {
@@ -456,8 +456,8 @@ int opt_default(const char *opt, const char *arg)
 #endif
 #if CONFIG_SWRESAMPLE
     swr_class = swr_get_class();
-    if (!oc && !of && !os && (oswr = av_opt_find(&swr_class, opt, NULL, 0,
-                          AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
+    if (!o && (o = av_opt_find(&swr_class, opt, NULL, 0,
+                               AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
         int ret = av_opt_set(swr_opts, opt, arg, 0);
         if (ret < 0) {
             av_log(NULL, AV_LOG_ERROR, "Error setting option %s.\n", opt);
@@ -466,7 +466,7 @@ int opt_default(const char *opt, const char *arg)
     }
 #endif
 
-    if (oc || of || os || oswr)
+    if (o)
         return 0;
     av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'\n", opt);
     return AVERROR_OPTION_NOT_FOUND;