Merge commit 'f0a41afd8a37ebe972436fabfa3d289178bbd83b'

[ffmpeg] / libavcodec / intrax8.c

diff --git a/libavcodec/intrax8.c b/libavcodec/intrax8.c
index c5a935b640e41b4aa1e502527efd558e4aaf0536..75166e8ffd19c8e940532e12e3f4d9223c73e722 100644 (file)
--- a/libavcodec/intrax8.c
+++ b/libavcodec/intrax8.c
@@ -17,12 +17,12 @@
  */
 
 /**
- * @file 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"
@@ -42,15 +42,32 @@ static VLC j_ac_vlc[2][2][8];  //[quant<13],[intra/inter],[select]
 static VLC j_dc_vlc[2][8];     //[quant], [select]
 static VLC j_orient_vlc[2][4]; //[quant], [select]
 
-static void x8_vlc_init(){
+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, \
-              1)
+              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 void x8_vlc_init(){
 
 //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 void x8_vlc_init(){
 
 //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, \
-    1);
+    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
 
@@ -278,7 +303,7 @@ static int x8_setup_spatial_predictor(IntraX8Context * const w, const int chroma
     int sum;
     int quant;
 
-    s->dsp.x8_setup_spacial_compensation(s->dest[chroma], s->edge_emu_buffer,
+    s->dsp.x8_setup_spatial_compensation(s->dest[chroma], s->edge_emu_buffer,
                                           s->current_picture.linesize[chroma>0],
                                           &range, &sum, w->edges);
     if(chroma){
@@ -511,7 +536,7 @@ static int x8_decode_intra_mb(IntraX8Context* const w, const int chroma){
     int sign;
 
     assert(w->orient<12);
-    memset(s->block[0],0x00,64*sizeof(DCTELEM));
+    s->dsp.clear_block(s->block[0]);
 
     if(chroma){
         dc_mode=2;
@@ -614,7 +639,7 @@ static int x8_decode_intra_mb(IntraX8Context* const w, const int chroma){
     if(w->flat_dc){
         dsp_x8_put_solidcolor(w->predicted_dc, s->dest[chroma], s->current_picture.linesize[!!chroma]);
     }else{
-        s->dsp.x8_spacial_compensation[w->orient]( s->edge_emu_buffer,
+        s->dsp.x8_spatial_compensation[w->orient]( s->edge_emu_buffer,
                                             s->dest[chroma],
                                             s->current_picture.linesize[!!chroma] );
     }
@@ -664,7 +689,7 @@ static void x8_init_block_index(MpegEncContext *s){ //FIXME maybe merge with ff_
  * @param w pointer to IntraX8Context
  * @param s pointer to MpegEncContext of the parent codec
  */
-void ff_intrax8_common_init(IntraX8Context * w, MpegEncContext * const s){
+av_cold void ff_intrax8_common_init(IntraX8Context * w, MpegEncContext * const s){
 
     w->s=s;
     x8_vlc_init();
@@ -676,6 +701,15 @@ void ff_intrax8_common_init(IntraX8Context * w, MpegEncContext * const s){
     ff_init_scantable(s->dsp.idct_permutation, &w->scantable[2], wmv1_scantable[3]);
 }
 
+/**
+ * Destroy IntraX8 frame structure.
+ * @param w pointer to IntraX8Context
+ */
+av_cold void ff_intrax8_common_end(IntraX8Context * w)
+{
+    av_freep(&w->prediction_table);
+}
+
 /**
  * Decode single IntraX8 frame.
  * The parent codec must fill s->loopfilter and s->gb (bitstream).