From: Jorge Estrada <jestrada.list@gmail.com>
To: ffmpeg-devel@ffmpeg.org
Cc: Jorge Estrada <jestrada.list@gmail.com>
Subject: [FFmpeg-devel] [PATCH] libavfilter/vf_scale_npp: fix yuva420p -> yuv420p conversion
Date: Sat, 19 Jul 2025 15:31:39 -0700
Message-ID: <20250719223139.190261-1-jestrada.list@gmail.com> (raw)
When converting from yuva420p to yuv420p the resize loop would try to access an output plane that did not exist.
Added a check for the output planes existence.
Example cmd: ffmpeg -hwaccel cuda -hwaccel_output_format cuda -i example.mp4 -vf scale_npp=format=yuva420p,scale_npp=format=yuv420p -c:v h264_nvenc -f null -
Signed-off-by: Jorge Estrada <jestrada.list@gmail.com>
---
libavfilter/vf_scale_npp.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavfilter/vf_scale_npp.c b/libavfilter/vf_scale_npp.c
index 1b1b7b9fc9..5387bf9c7a 100644
--- a/libavfilter/vf_scale_npp.c
+++ b/libavfilter/vf_scale_npp.c
@@ -721,7 +721,7 @@ static int nppscale_resize(AVFilterContext *ctx, NPPScaleStageContext *stage,
NppStatus err;
int i;
- for (i = 0; i < FF_ARRAY_ELEMS(stage->planes_in) && i < FF_ARRAY_ELEMS(in->data) && in->data[i]; i++) {
+ for (i = 0; i < FF_ARRAY_ELEMS(stage->planes_in) && i < FF_ARRAY_ELEMS(in->data) && in->data[i] && out->data[i]; i++) {
int iw = stage->planes_in[i].width;
int ih = stage->planes_in[i].height;
int ow = stage->planes_out[i].width;
--
2.34.1
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