[FFmpeg-cvslog] avcodec/mpeg4videodec: assert impossible wrap points

[Michael Niedermayer]

ffmpeg | branch: release/6.1 | Michael Niedermayer <michael at niedermayer.cc> | Sat May 11 22:08:21 2024 +0200| [8174b4206d6b4b59a8aab63b79b0413759a4c47d] | committer: Michael Niedermayer

avcodec/mpeg4videodec: assert impossible wrap points

Helps: CID1473517 Uninitialized scalar variable
Helps: CID1473497 Uninitialized scalar variable

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
(cherry picked from commit 8fc649b931a3cbc3a2dd9b50b75a9261a2fb4b49)
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=8174b4206d6b4b59a8aab63b79b0413759a4c47d
---

 libavcodec/mpeg4videodec.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libavcodec/mpeg4videodec.c b/libavcodec/mpeg4videodec.c
index 97aec68981..54b3f33218 100644
--- a/libavcodec/mpeg4videodec.c
+++ b/libavcodec/mpeg4videodec.c
@@ -597,6 +597,8 @@ static int mpeg4_decode_sprite_trajectory(Mpeg4DecContext *ctx, GetBitContext *g
         ctx->sprite_shift[0]  = alpha + beta + rho - min_ab;
         ctx->sprite_shift[1]  = alpha + beta + rho - min_ab + 2;
         break;
+    default:
+        av_assert0(0);
     }
     /* try to simplify the situation */
     if (sprite_delta[0][0] == a << ctx->sprite_shift[0] &&