---
libavfilter/avfilter.c | 6 +++---
libavfilter/avfilter.h | 2 +-
2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/libavfilter/avfilter.c b/libavfilter/avfilter.c
index 88e39bf..6b933ad 100644
--- a/libavfilter/avfilter.c
+++ b/libavfilter/avfilter.c
@@ -272,9 +272,9 @@ int ff_poll_frame(AVFilterLink *link)
static AVFilter *first_filter;
-AVFilter *avfilter_get_by_name(const char *name)
+const AVFilter *avfilter_get_by_name(const char *name)
{
- AVFilter *f = NULL;
+ const AVFilter *f = NULL;
if (!name)
return NULL;
@@ -340,7 +340,7 @@ static void *filter_child_next(void *obj, void *prev)
static const AVClass *filter_child_class_next(const AVClass *prev)
{
- AVFilter *f = NULL;
+ const AVFilter *f = NULL;
while (prev && (f = avfilter_next(f)))
if (f->priv_class == prev)
diff --git a/libavfilter/avfilter.h b/libavfilter/avfilter.h
index ca11be9..d8f868c 100644
--- a/libavfilter/avfilter.h
+++ b/libavfilter/avfilter.h
@@ -764,7 +764,7 @@ int avfilter_register(AVFilter *filter);
* @return the filter definition, if any matching one is registered.
* NULL if none found.
*/
-AVFilter *avfilter_get_by_name(const char *name);
+const AVFilter *avfilter_get_by_name(const char *name);
/**
* Iterate over all registered filters.
--
1.8.4
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