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avfilter/avf_showspectrum: fix off by 1 error

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Fixes: out of array access
Fixes: tickets/10749/poc15ffmpeg

Regression since: 81df787b53

Found-by: Zeng Yunxiang
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit ab0fdaedd1)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2023-12-24 20:31:02 +01:00
parent 9468749249
commit 8711cea384
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GPG Key ID: B18E8928B3948D64
1 changed files with 1 additions and 1 deletions
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2
libavfilter/avf_showspectrum.c
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@ -1779,7 +1779,7 @@ static int showspectrumpic_request_frame(AVFilterLink *outlink)
int acc_samples = 0;
int dst_offset = 0;
while (nb_frame <= s->nb_frames) {
while (nb_frame < s->nb_frames) {
AVFrame *cur_frame = s->frames[nb_frame];
int cur_frame_samples = cur_frame->nb_samples;
int nb_samples = 0;