From 96449cfeaeb95fcfd7a2b8d9ccf7719e97471ed1
Author: Michael Niedermayer <michael@niedermayer.cc>
Date: Mon Apr 8 18:38:42 2024 +0200
Subject: avcodec/mpegvideo_enc: Fix 1 line and one column images
References: CVE-2024-32230
References: https://bugzilla.opensuse.org/1227296
Upstream: Backport from upstream

Fixes: Ticket10952
Fixes: poc21ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

--- ffmpeg-7.0/libavcodec/mpegvideo_enc.c
+++ ffmpeg-7.0_new/libavcodec/mpegvideo_enc.c
@@ -1198,8 +1198,8 @@
                 ptrdiff_t dst_stride = i ? s->uvlinesize : s->linesize;
                 int h_shift = i ? s->chroma_x_shift : 0;
                 int v_shift = i ? s->chroma_y_shift : 0;
-                int w = s->width  >> h_shift;
-                int h = s->height >> v_shift;
+                int w = AV_CEIL_RSHIFT(s->width , h_shift);
+                int h = AV_CEIL_RSHIFT(s->height, v_shift);
                 const uint8_t *src = pic_arg->data[i];
                 uint8_t *dst = pic->f->data[i];
                 int vpad = 16;