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| author | Paul B Mahol <onemda@gmail.com> | 2022-11-25 19:37:44 +0100 |
|---|---|---|
| committer | Paul B Mahol <onemda@gmail.com> | 2022-11-25 19:40:11 +0100 |
| commit | 4c1a79eb803edd12e353278993fe15755f1612fa (patch) | |
| tree | da24c3c9bdb38670483924e67db806a87d09683a | |
| parent | 9d2b5762d3a29e4b2758d3ca1a7d70e362c6febf (diff) | |
| download | ffmpeg-4c1a79eb803edd12e353278993fe15755f1612fa.tar.gz | |
avfilter/avf_showcqt: fix crash when using vflip filter
| -rw-r--r-- | libavfilter/avf_showcqt.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/libavfilter/avf_showcqt.c b/libavfilter/avf_showcqt.c index 93229a14eb..76086477e9 100644 --- a/libavfilter/avf_showcqt.c +++ b/libavfilter/avf_showcqt.c @@ -1031,16 +1031,17 @@ static void draw_sono(AVFrame *out, AVFrame *sono, int off, int idx) int nb_planes = (fmt == AV_PIX_FMT_RGB24) ? 1 : 3; int offh = (fmt == AV_PIX_FMT_YUV420P) ? off / 2 : off; int inc = (fmt == AV_PIX_FMT_YUV420P) ? 2 : 1; - int ls, i, y, yh; + ptrdiff_t ls; + int i, y, yh; - ls = FFMIN(out->linesize[0], sono->linesize[0]); + ls = FFABS(FFMIN(out->linesize[0], sono->linesize[0])); for (y = 0; y < h; y++) { memcpy(out->data[0] + (off + y) * out->linesize[0], sono->data[0] + (idx + y) % h * sono->linesize[0], ls); } for (i = 1; i < nb_planes; i++) { - ls = FFMIN(out->linesize[i], sono->linesize[i]); + ls = FFABS(FFMIN(out->linesize[i], sono->linesize[i])); for (y = 0; y < h; y += inc) { yh = (fmt == AV_PIX_FMT_YUV420P) ? y / 2 : y; memcpy(out->data[i] + (offh + yh) * out->linesize[i], |