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lavc/dvdsubenc: only check canvas size when it is actually set

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Fixes #10650

(cherry picked from commit 5230257ea1)
Signed-off-by: Anton Khirnov <anton@khirnov.net>
This commit is contained in:
Anton Khirnov 2023-11-30 11:21:24 +01:00
parent 466799d4f5
commit 111035ccae
1 changed files with 2 additions and 1 deletions
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libavcodec/dvdsubenc.c
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@ -376,7 +376,8 @@ static int encode_dvd_subtitles(AVCodecContext *avctx,
x2 = vrect.x + vrect.w - 1;
y2 = vrect.y + vrect.h - 1;
if (x2 > avctx->width || y2 > avctx->height) {
if ((avctx->width > 0 && x2 > avctx->width) ||
(avctx->height > 0 && y2 > avctx->height)) {
av_log(avctx, AV_LOG_ERROR, "canvas_size(%d:%d) is too small(%d:%d) for render\n",
avctx->width, avctx->height, x2, y2);
ret = AVERROR(EINVAL);