AVOptions: add av_opt_set_dict() mapping a dictionary struct to a context.

This way the caller can pass all the options in one nice package.

1 files changed, 22 insertions, 0 deletions

diff --git a/libavutil/opt.c b/libavutil/opt.c
index 7775bb2af3..55bb6d24f0 100644
--- a/libavutil/opt.c
+++ b/libavutil/opt.c
@@ -29,6 +29,7 @@
 #include "avstring.h"
 #include "opt.h"
 #include "eval.h"
+#include "dict.h"
 
 //FIXME order them and do a bin search
 const AVOption *av_find_opt(void *v, const char *name, const char *unit, int mask, int flags)
@@ -538,6 +539,27 @@ void av_opt_free(void *obj)
             av_freep((uint8_t *)obj + o->offset);
 }
 
+int av_opt_set_dict(void *obj, AVDictionary **options)
+{
+    AVDictionaryEntry *t = NULL;
+    AVDictionary    *tmp = NULL;
+    int ret = 0;
+
+    while ((t = av_dict_get(*options, "", t, AV_DICT_IGNORE_SUFFIX))) {
+        ret = av_set_string3(obj, t->key, t->value, 1, NULL);
+        if (ret == AVERROR_OPTION_NOT_FOUND)
+            av_dict_set(&tmp, t->key, t->value, 0);
+        else if (ret < 0) {
+            av_log(obj, AV_LOG_ERROR, "Error setting option %s to value %s.\n", t->key, t->value);
+            break;
+        }
+        ret = 0;
+    }
+    av_dict_free(options);
+    *options = tmp;
+    return ret;
+}
+
 #ifdef TEST
 
 #undef printf