X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fjpegls.h;h=aac67bbe3197a295c478c020edc85135d302dd90;hb=eb6ea948ed2f86361ae0b9d8689368d466b8337f;hp=6b89b2afa3dfe195466244b241bce6be36149211;hpb=14fe81b3a88dfe4dbac12e8715f9a3f05b5ef1bf;p=ffmpeg

diff --git a/libavcodec/jpegls.h b/libavcodec/jpegls.h
index 6b89b2afa3d..aac67bbe319 100644
--- a/libavcodec/jpegls.h
+++ b/libavcodec/jpegls.h
@@ -34,10 +34,6 @@
 
 #undef near /* This file uses struct member 'near' which in windows.h is defined as empty. */
 
-typedef struct JpeglsContext {
-    AVCodecContext *avctx;
-} JpeglsContext;
-
 typedef struct JLSState {
     int T1, T2, T3;
     int A[367], B[367], C[365], N[367];
@@ -99,7 +95,7 @@ static inline void ff_jpegls_downscale_state(JLSState *state, int Q)
 static inline int ff_jpegls_update_state_regular(JLSState *state,
                                                  int Q, int err)
 {
-    if(FFABS(err) > 0xFFFF)
+    if(FFABS(err) > 0xFFFF || FFABS(err) > INT_MAX - state->A[Q])
         return -0x10000;
     state->A[Q] += FFABS(err);
     err         *= state->twonear;