1 files changed, 8 insertions, 7 deletions

diff --git a/libavcodec/jpegls.h b/libavcodec/jpegls.h
index eae3943..c8997c7 100644
--- a/libavcodec/jpegls.h
+++ b/libavcodec/jpegls.h
@@ -3,20 +3,20 @@
  * Copyright (c) 2003 Michael Niedermayer
  * Copyright (c) 2006 Konstantin Shishkov
  *
- * This file is part of Libav.
+ * This file is part of FFmpeg.
  *
- * Libav is free software; you can redistribute it and/or
+ * FFmpeg is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  *
- * Libav is distributed in the hope that it will be useful,
+ * FFmpeg is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
@@ -30,6 +30,7 @@
 
 #include "libavutil/common.h"
 #include "avcodec.h"
+#include "internal.h"
 
 typedef struct JpeglsContext {
     AVCodecContext *avctx;
@@ -40,11 +41,9 @@ typedef struct JLSState {
     int A[367], B[367], C[365], N[367];
     int limit, reset, bpp, qbpp, maxval, range;
     int near, twonear;
-    int run_index[3];
+    int run_index[4];
 } JLSState;
 
-extern const uint8_t ff_log2_run[32];
-
 /**
  * Calculate initial JPEG-LS parameters
  */
@@ -98,6 +97,8 @@ 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)
+        return -0x10000;
     state->A[Q] += FFABS(err);
     err         *= state->twonear;
     state->B[Q] += err;