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avfilter/avf_showcqt: fix crash when using vflip filter

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This commit is contained in:
Paul B Mahol 2022-11-25 19:37:44 +01:00
parent 9d2b5762d3
commit 4c1a79eb80
1 changed files with 4 additions and 3 deletions
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7
libavfilter/avf_showcqt.c
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@ -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],