Fix infinite loop at EOF.

[ffmpeg] / libavcodec / vc1.c

diff --git a/libavcodec/vc1.c b/libavcodec/vc1.c
index c4cac00532a18b4fd86e82a924c853c0f07b73f5..f1a7232879bfd67deb3eebcd25d80d6b54aa0017 100644 (file)
--- a/libavcodec/vc1.c
+++ b/libavcodec/vc1.c
@@ -783,8 +783,8 @@ static int decode_sequence_header(AVCodecContext *avctx, GetBitContext *gb)
     }
     else
     {
-        v->zz_8x4 = ff_vc1_simple_progressive_8x4_zz;
-        v->zz_4x8 = ff_vc1_simple_progressive_4x8_zz;
+        v->zz_8x4 = wmv2_scantableA;
+        v->zz_4x8 = wmv2_scantableB;
         v->res_sm = get_bits(gb, 2); //reserved
         if (v->res_sm)
         {
@@ -2398,11 +2398,11 @@ static int vc1_decode_i_block(VC1Context *v, DCTELEM block[64], int n, int coded
 
         if(v->s.ac_pred) {
             if(!dc_pred_dir)
-                zz_table = ff_vc1_horizontal_zz;
+                zz_table = wmv1_scantable[2];
             else
-                zz_table = ff_vc1_vertical_zz;
+                zz_table = wmv1_scantable[3];
         } else
-            zz_table = ff_vc1_normal_zz;
+            zz_table = wmv1_scantable[1];
 
         ac_val = s->ac_val[0][0] + s->block_index[n] * 16;
         ac_val2 = ac_val;
@@ -2581,11 +2581,11 @@ static int vc1_decode_i_block_adv(VC1Context *v, DCTELEM block[64], int n, int c
 
         if(v->s.ac_pred) {
             if(!dc_pred_dir)
-                zz_table = ff_vc1_horizontal_zz;
+                zz_table = wmv1_scantable[2];
             else
-                zz_table = ff_vc1_vertical_zz;
+                zz_table = wmv1_scantable[3];
         } else
-            zz_table = ff_vc1_normal_zz;
+            zz_table = wmv1_scantable[1];
 
         while (!last) {
             vc1_decode_ac_coeff(v, &last, &skip, &value, codingset);
@@ -2786,7 +2786,7 @@ static int vc1_decode_intra_block(VC1Context *v, DCTELEM block[64], int n, int c
         const int8_t *zz_table;
         int k;
 
-        zz_table = ff_vc1_simple_progressive_8x8_zz;
+        zz_table = wmv1_scantable[0];
 
         while (!last) {
             vc1_decode_ac_coeff(v, &last, &skip, &value, codingset);
@@ -2928,7 +2928,7 @@ static int vc1_decode_p_block(VC1Context *v, DCTELEM block[64], int n, int mquan
             i += skip;
             if(i > 63)
                 break;
-            idx = ff_vc1_simple_progressive_8x8_zz[i++];
+            idx = wmv1_scantable[0][i++];
             block[idx] = value * scale;
             if(!v->pquantizer)
                 block[idx] += (block[idx] < 0) ? -mquant : mquant;
@@ -3017,7 +3017,7 @@ static int vc1_decode_p_mb(VC1Context *v)
       offset_table[6] = { 0, 1, 3, 7, 15, 31 };
     int mb_has_coeffs = 1; /* last_flag */
     int dmv_x, dmv_y; /* Differential MV components */
-    int index, index1; /* LUT indices */
+    int index, index1; /* LUT indexes */
     int val, sign; /* temp values */
     int first_block = 1;
     int dst_idx, off;
@@ -3246,7 +3246,7 @@ static void vc1_decode_b_mb(VC1Context *v)
     static const int size_table[6] = { 0, 2, 3, 4, 5, 8 },
       offset_table[6] = { 0, 1, 3, 7, 15, 31 };
     int mb_has_coeffs = 0; /* last_flag */
-    int index, index1; /* LUT indices */
+    int index, index1; /* LUT indexes */
     int val, sign; /* temp values */
     int first_block = 1;
     int dst_idx, off;
@@ -4137,7 +4137,7 @@ AVCodec vc1_decoder = {
     vc1_decode_frame,
     CODEC_CAP_DELAY,
     NULL,
-    .long_name = "SMPTE VC-1",
+    .long_name = NULL_IF_CONFIG_SMALL("SMPTE VC-1"),
 };
 
 AVCodec wmv3_decoder = {
@@ -4151,5 +4151,5 @@ AVCodec wmv3_decoder = {
     vc1_decode_frame,
     CODEC_CAP_DELAY,
     NULL,
-    .long_name = "Windows Media Video 9",
+    .long_name = NULL_IF_CONFIG_SMALL("Windows Media Video 9"),
 };