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[FFmpeg-devel,14/16] lavfi/drawutils: ensure we don't support formats with non-pixel-sized offsets

Message ID 20211224030904.1196-15-rcombs@rcombs.me
State Accepted
Commit f67bd3a8254f50676dee037a0c0b31e4148c1a85
Headers show
Series [FFmpeg-devel,01/16] swscale/output: template-ize yuv2nv12cX 10-bit and 16-bit cases | expand

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Commit Message

rcombs Dec. 24, 2021, 3:09 a.m. UTC 
---
 libavfilter/drawutils.c | 2 ++
 1 file changed, 2 insertions(+)
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Patch

diff --git a/libavfilter/drawutils.c b/libavfilter/drawutils.c
index bcdb669bd3..5308fcbc0f 100644
--- a/libavfilter/drawutils.c
+++ b/libavfilter/drawutils.c
@@ -114,6 +114,8 @@  int ff_draw_init(FFDrawContext *draw, enum AVPixelFormat format, unsigned flags)
         depthb = db;
         if (db * (c->offset + 1) > 16)
             return AVERROR(ENOSYS);
+        if (c->offset % db)
+            return AVERROR(ENOSYS);
         /* strange interleaving */
         if (pixelstep[c->plane] != 0 &&
             pixelstep[c->plane] != c->step)