This way the caller can pass all the options in one nice package.
---
libavutil/opt.c | 24 ++++++++++++++++++++++++
libavutil/opt.h | 13 +++++++++++++
2 files changed, 37 insertions(+), 0 deletions(-)
diff --git a/libavutil/opt.c b/libavutil/opt.c
index 172fcec..429c9ba 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)
@@ -528,6 +529,29 @@ void av_opt_free(void *obj)
av_freep((uint8_t *)obj + o->offset);
}
+int av_opt_apply_dict(void *obj, AVDictionary **options)
+{
+ AVDictionaryEntry *t = NULL;
+ AVDictionary *tmp = NULL;
+ int ret = 0;
+
+ av_dict_copy(&tmp, *options, 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 >= 0)
+ av_dict_set(&tmp, t->key, NULL, 0);
+ else if (ret != AVERROR_OPTION_NOT_FOUND) {
+ 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
diff --git a/libavutil/opt.h b/libavutil/opt.h
index 8c3b6c1..f16d989 100644
--- a/libavutil/opt.h
+++ b/libavutil/opt.h
@@ -29,6 +29,7 @@
#include "rational.h"
#include "avutil.h"
+#include "dict.h"
enum AVOptionType{
FF_OPT_TYPE_FLAGS,
@@ -181,4 +182,16 @@ int av_set_options_string(void *ctx, const char *opts,
*/
void av_opt_free(void *obj);
+/*
+ * A convenience function that applies all the options from options to obj.
+ *
+ * @param obj A struct whose first element is a pointer to AVClass.
+ * @param options Options to process. Will be replaced with an AVDictionary
+ * containing all options not found in obj.
+ *
+ * @return 0 on success, a negative AVERROR if some option was found in obj,
+ * but couldn't be set.
+ */
+int av_opt_apply_dict(void *obj, struct AVDictionary **options);
+
#endif /* AVUTIL_OPT_H */
--
1.7.5.1
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