[FFmpeg-devel] [PATCH v3 2/3] avfilter/vf_bwdif_cuda: consider chroma subsampling when enforcing minimum dimensions

[Cosmin Stejerean via ffmpeg-devel <ffmpeg-devel@ffmpeg.org>]

From: Cosmin Stejerean <cosmin@cosmin.at>

Signed-off-by: Cosmin Stejerean <cosmin@cosmin.at>
---
 libavfilter/vf_bwdif_cuda.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/libavfilter/vf_bwdif_cuda.c b/libavfilter/vf_bwdif_cuda.c
index a5ecfbadb6..418f15f989 100644
--- a/libavfilter/vf_bwdif_cuda.c
+++ b/libavfilter/vf_bwdif_cuda.c
@@ -296,15 +296,16 @@ static int config_output(AVFilterLink *link)
         link->frame_rate = av_mul_q(ctx->inputs[0]->frame_rate,
                                     (AVRational){2, 1});
 
-    if (link->w < 3 || link->h < 3) {
-        av_log(ctx, AV_LOG_ERROR, "Video of less than 3 columns or lines is not supported\n");
-        ret = AVERROR(EINVAL);
-        goto exit;
-    }
 
     y->csp = av_pix_fmt_desc_get(output_frames->sw_format);
     y->filter = filter;
 
+    if (AV_CEIL_RSHIFT(link->w, y->csp->log2_chroma_w) < 3 || AV_CEIL_RSHIFT(link->h, y->csp->log2_chroma_h) < 3) {
+        av_log(ctx, AV_LOG_ERROR, "Video with planes less than 3 columns or lines is not supported\n");
+        ret = AVERROR(EINVAL);
+        goto exit;
+    }
+
     ret = CHECK_CU(cu->cuCtxPushCurrent(s->hwctx->cuda_ctx));
     if (ret < 0)
         goto exit;
-- 
2.42.1


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