mirror of https://git.ffmpeg.org/ffmpeg.git
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@niedermayer.cc>
(cherry picked from commit 8fc649b931
)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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@ -351,6 +351,8 @@ static int mpeg4_decode_sprite_trajectory(Mpeg4DecContext *ctx, GetBitContext *g
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ctx->sprite_shift[0] = alpha + beta + rho - min_ab;
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ctx->sprite_shift[1] = alpha + beta + rho - min_ab + 2;
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break;
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default:
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av_assert0(0);
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}
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/* try to simplify the situation */
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if (sprite_delta[0][0] == a << ctx->sprite_shift[0] &&
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