[FFmpeg-devel] [PATCH] lavu/opt: make av_opt_get() return NULL in case a string is not set

[Stefano Sabatini]

This allows to distinguish between the case when the string is not set,
and the string is set to the empty string.

TODO: bump micro
---
 libavutil/opt.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavutil/opt.c b/libavutil/opt.c
index 61c76da..5f27cf1 100644
--- a/libavutil/opt.c
+++ b/libavutil/opt.c
@@ -549,7 +549,7 @@ int av_opt_get(void *obj, const char *name, int search_flags, uint8_t **out_val)
         if (*(uint8_t**)dst)
             *out_val = av_strdup(*(uint8_t**)dst);
         else
-            *out_val = av_strdup("");
+            *out_val = NULL;
         return 0;
     case AV_OPT_TYPE_BINARY:
         len = *(int*)(((uint8_t *)dst) + sizeof(uint8_t *));
-- 
1.7.9.5