Fixes: Ticket5548
Signed-off-by: Michael Niedermayer <[email protected]>
---
libavcodec/ffv1enc.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/libavcodec/ffv1enc.c b/libavcodec/ffv1enc.c
index e59d540737..39b52d5a48 100644
--- a/libavcodec/ffv1enc.c
+++ b/libavcodec/ffv1enc.c
@@ -850,6 +850,10 @@ FF_ENABLE_DEPRECATION_WARNINGS
if (s->version > 1) {
int plane_count = 1 + 2*s->chroma_planes + s->transparency;
s->num_v_slices = (avctx->width > 352 || avctx->height > 288 ||
!avctx->slices) ? 2 : 1;
+
+ if (avctx->height < 5)
+ s->num_v_slices = 1;
+
for (; s->num_v_slices < 32; s->num_v_slices++) {
for (s->num_h_slices = s->num_v_slices; s->num_h_slices <
2*s->num_v_slices; s->num_h_slices++) {
int maxw = (avctx->width + s->num_h_slices - 1) /
s->num_h_slices;
--
2.13.0
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