bink: Check for out of bound writes when building tree

[ffmpeg] / libavcodec / arm / mdct_neon.S

diff --git a/libavcodec/arm/mdct_neon.S b/libavcodec/arm/mdct_neon.S
index 495c2b2d5c5cf1b6632d28625dff60ebdd5d0665..1ba3067c4e874eb707d066cd8628d2419527ba49 100644 (file)
--- a/libavcodec/arm/mdct_neon.S
+++ b/libavcodec/arm/mdct_neon.S
@@ -2,26 +2,27 @@
  * ARM NEON optimised MDCT
  * Copyright (c) 2009 Mans Rullgard <mans@mansr.com>
  *
- * This file is part of FFmpeg.
+ * This file is part of Libav.
  *
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav 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.
  *
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav 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 FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
 #include "asm.S"
 
-        .fpu neon
+        preserve8
+
         .text
 
 #define ff_fft_calc_neon X(ff_fft_calc_neon)
@@ -30,8 +31,8 @@ function ff_imdct_half_neon, export=1
         push            {r4-r8,lr}
 
         mov             r12, #1
-        ldr             lr,  [r0, #28]          @ mdct_bits
-        ldr             r4,  [r0, #32]          @ tcos
+        ldr             lr,  [r0, #20]          @ mdct_bits
+        ldr             r4,  [r0, #24]          @ tcos
         ldr             r3,  [r0, #8]           @ revtab
         lsl             r12, r12, lr            @ n  = 1 << nbits
         lsr             lr,  r12, #2            @ n4 = n >> 2
@@ -75,8 +76,8 @@ function ff_imdct_half_neon, export=1
         bl              ff_fft_calc_neon
 
         mov             r12, #1
-        ldr             lr,  [r4, #28]          @ mdct_bits
-        ldr             r4,  [r4, #32]          @ tcos
+        ldr             lr,  [r4, #20]          @ mdct_bits
+        ldr             r4,  [r4, #24]          @ tcos
         lsl             r12, r12, lr            @ n  = 1 << nbits
         lsr             lr,  r12, #3            @ n8 = n >> 3
 
@@ -121,12 +122,12 @@ function ff_imdct_half_neon, export=1
         vst2.32         {d5,d7},  [r8,:128]
 
         pop             {r4-r8,pc}
-.endfunc
+endfunc
 
 function ff_imdct_calc_neon, export=1
         push            {r4-r6,lr}
 
-        ldr             r3,  [r0, #28]
+        ldr             r3,  [r0, #20]
         mov             r4,  #1
         mov             r5,  r1
         lsl             r4,  r4,  r3
@@ -157,14 +158,14 @@ function ff_imdct_calc_neon, export=1
         bgt             1b
 
         pop             {r4-r6,pc}
-.endfunc
+endfunc
 
 function ff_mdct_calc_neon, export=1
         push            {r4-r10,lr}
 
         mov             r12, #1
-        ldr             lr,  [r0, #28]          @ mdct_bits
-        ldr             r4,  [r0, #32]          @ tcos
+        ldr             lr,  [r0, #20]          @ mdct_bits
+        ldr             r4,  [r0, #24]          @ tcos
         ldr             r3,  [r0, #8]           @ revtab
         lsl             lr,  r12, lr            @ n  = 1 << nbits
         add             r7,  r2,  lr            @ in4u
@@ -190,7 +191,9 @@ function ff_mdct_calc_neon, export=1
         vadd.f32        d17, d17, d3            @ in2u+in1d     -I
 1:
         vmul.f32        d7,  d0,  d21           @  I*s
-        ldr             r10, [r3, lr, lsr #1]
+A       ldr             r10, [r3, lr, lsr #1]
+T       lsr             r10, lr,  #1
+T       ldr             r10, [r3, r10]
         vmul.f32        d6,  d1,  d20           @ -R*c
         ldr             r6,  [r3, #4]!
         vmul.f32        d4,  d1,  d21           @ -R*s
@@ -252,8 +255,8 @@ function ff_mdct_calc_neon, export=1
         bl              ff_fft_calc_neon
 
         mov             r12, #1
-        ldr             lr,  [r4, #28]          @ mdct_bits
-        ldr             r4,  [r4, #32]          @ tcos
+        ldr             lr,  [r4, #20]          @ mdct_bits
+        ldr             r4,  [r4, #24]          @ tcos
         lsl             r12, r12, lr            @ n  = 1 << nbits
         lsr             lr,  r12, #3            @ n8 = n >> 3
 
@@ -299,4 +302,4 @@ function ff_mdct_calc_neon, export=1
         vst2.32         {d5,d7},  [r8,:128]
 
         pop             {r4-r10,pc}
-.endfunc
+endfunc