If alignment is set to less than 4 filter_edges will produce incorrect
output and not filter the entire edge. To fix this, make sure that
the edge size is at least 3.
Signed-off-by: Chris Phlipot <cphlip...@gmail.com>
---
libavfilter/vf_yadif.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/libavfilter/vf_yadif.c b/libavfilter/vf_yadif.c
index afa4d1d53d..055327d7a4 100644
--- a/libavfilter/vf_yadif.c
+++ b/libavfilter/vf_yadif.c
@@ -120,7 +120,7 @@ static void filter_edges(void *dst1, void *prev1, void
*cur1, void *next1,
uint8_t *prev2 = parity ? prev : cur ;
uint8_t *next2 = parity ? cur : next;
- const int edge = MAX_ALIGN - 1;
+ const int edge = FFMAX(MAX_ALIGN - 1, 3);
int offset = FFMAX(w - edge, 3);
/* Only edge pixels need to be processed here. A constant value of false
@@ -169,7 +169,7 @@ static void filter_edges_16bit(void *dst1, void *prev1,
void *cur1, void *next1,
uint16_t *prev2 = parity ? prev : cur ;
uint16_t *next2 = parity ? cur : next;
- const int edge = MAX_ALIGN / 2 - 1;
+ const int edge = FFMAX(MAX_ALIGN / 2 - 1, 3);
int offset = FFMAX(w - edge, 3);
mrefs /= 2;
--
2.25.1
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