avio: Fix sanity checks in ffurl_read*

[ffmpeg] / libavcodec / intrax8.c

diff --git a/libavcodec/intrax8.c b/libavcodec/intrax8.c
index 2ae57d9bd7deb86677c79db333108c9991ed2150..69f940a1620740592a421959f71b069ae55ed048 100644 (file)
--- a/libavcodec/intrax8.c
+++ b/libavcodec/intrax8.c
@@ -1,28 +1,28 @@
 /*
- * 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
  */
 
 /**
- * @file libavcodec/intrax8.c
+ * @file
  * @brief IntraX8 (J-Frame) subdecoder, used by WMV2 and VC-1
  */
 
 #include "avcodec.h"
-#include "bitstream.h"
+#include "get_bits.h"
 #include "mpegvideo.h"
 #include "msmpeg4data.h"
 #include "intrax8huf.h"
@@ -44,13 +44,30 @@ static VLC j_orient_vlc[2][4]; //[quant], [select]
 
 static av_cold void x8_vlc_init(void){
     int i;
+    int offset = 0;
+    int sizeidx = 0;
+    static const uint16_t sizes[8*4 + 8*2 + 2 + 4] = {
+        576, 548, 582, 618, 546, 616, 560, 642,
+        584, 582, 704, 664, 512, 544, 656, 640,
+        512, 648, 582, 566, 532, 614, 596, 648,
+        586, 552, 584, 590, 544, 578, 584, 624,
+
+        528, 528, 526, 528, 536, 528, 526, 544,
+        544, 512, 512, 528, 528, 544, 512, 544,
+
+        128, 128, 128, 128, 128, 128};
+
+    static VLC_TYPE table[28150][2];
 
 #define  init_ac_vlc(dst,src) \
+    dst.table = &table[offset]; \
+    dst.table_allocated = sizes[sizeidx]; \
+    offset += sizes[sizeidx++]; \
        init_vlc(&dst, \
               AC_VLC_BITS,77, \
               &src[1],4,2, \
               &src[0],4,2, \
-              INIT_VLC_USE_STATIC)
+              INIT_VLC_USE_NEW_STATIC)
 //set ac tables
     for(i=0;i<8;i++){
         init_ac_vlc( j_ac_vlc[0][0][i], x8_ac0_highquant_table[i][0] );
@@ -62,11 +79,14 @@ static av_cold void x8_vlc_init(void){
 
 //set dc tables
 #define init_dc_vlc(dst,src) \
+    dst.table = &table[offset]; \
+    dst.table_allocated = sizes[sizeidx]; \
+    offset += sizes[sizeidx++]; \
         init_vlc(&dst, \
         DC_VLC_BITS,34, \
         &src[1],4,2, \
         &src[0],4,2, \
-        1);
+        INIT_VLC_USE_NEW_STATIC);
     for(i=0;i<8;i++){
         init_dc_vlc( j_dc_vlc[0][i], x8_dc_highquant_table[i][0]);
         init_dc_vlc( j_dc_vlc[1][i], x8_dc_lowquant_table [i][0]);
@@ -75,17 +95,22 @@ static av_cold void x8_vlc_init(void){
 
 //set orient tables
 #define init_or_vlc(dst,src) \
+    dst.table = &table[offset]; \
+    dst.table_allocated = sizes[sizeidx]; \
+    offset += sizes[sizeidx++]; \
     init_vlc(&dst, \
     OR_VLC_BITS,12, \
     &src[1],4,2, \
     &src[0],4,2, \
-    INIT_VLC_USE_STATIC);
+    INIT_VLC_USE_NEW_STATIC);
     for(i=0;i<2;i++){
         init_or_vlc( j_orient_vlc[0][i], x8_orient_highquant_table[i][0]);
     }
     for(i=0;i<4;i++){
         init_or_vlc( j_orient_vlc[1][i], x8_orient_lowquant_table [i][0])
     }
+    if (offset != sizeof(table)/sizeof(VLC_TYPE)/2)
+        av_log(NULL, AV_LOG_ERROR, "table size %i does not match needed %i\n", (int)(sizeof(table)/sizeof(VLC_TYPE)/2), offset);
 }
 #undef init_or_vlc