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Git pushed a commit to branch master
in repository ffmpeg.
The following commit(s) were added to refs/heads/master by this push:
new 4da9812e25 avfilter/vf_quirc: resize the quirc buffers when the input
size changes
4da9812e25 is described below
commit 4da9812e25894fb51d62a8875cfa8eb39b5e20f5
Author: Michael Niedermayer <[email protected]>
AuthorDate: Sun Jun 28 15:33:38 2026 +0200
Commit: michaelni <[email protected]>
CommitDate: Sun Jul 5 00:07:59 2026 +0000
avfilter/vf_quirc: resize the quirc buffers when the input size changes
Fixes: out of array access
Fixes: JbvzNObhorBp
Fixes: 030e140145 (lavfi: add quirc filter)
Found-by: Adrian Junge (vurlo)
Signed-off-by: Michael Niedermayer <[email protected]>
---
libavfilter/vf_quirc.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/libavfilter/vf_quirc.c b/libavfilter/vf_quirc.c
index 59dc84caa8..d2ba48e7bc 100644
--- a/libavfilter/vf_quirc.c
+++ b/libavfilter/vf_quirc.c
@@ -36,6 +36,7 @@ typedef struct QuircContext {
const AVClass *class;
struct quirc *quirc;
+ int width, height;
} QuircContext;
static av_cold int init(AVFilterContext *ctx)
@@ -67,6 +68,8 @@ static int config_input(AVFilterLink *inlink)
if (err == -1) {
return AVERROR(ENOMEM);
}
+ quirc->width = inlink->w;
+ quirc->height = inlink->h;
return 0;
}
@@ -80,6 +83,15 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *frame)
int codes_count;
uint8_t *image;
+ if (quirc->width != inlink->w || quirc->height != inlink->h) {
+ if (quirc_resize(quirc->quirc, inlink->w, inlink->h) < 0) {
+ av_frame_free(&frame);
+ return AVERROR(ENOMEM);
+ }
+ quirc->width = inlink->w;
+ quirc->height = inlink->h;
+ }
+
/* copy input image to quirc buffer */
image = quirc_begin(quirc->quirc, NULL, NULL);
av_image_copy_plane(image, inlink->w,
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