Use new static VLC scheme in Indeo2, Musepack and WNV1 decoders

Originally committed as revision 18553 to svn://svn.ffmpeg.org/ffmpeg/trunk

4 files changed, 93 insertions, 25 deletions

diff --git a/libavcodec/indeo2.c b/libavcodec/indeo2.c
index a107574a26..53624a1078 100644
--- a/libavcodec/indeo2.c
+++ b/libavcodec/indeo2.c
@@ -192,20 +192,22 @@ static int ir2_decode_frame(AVCodecContext *avctx,
 
 static av_cold int ir2_decode_init(AVCodecContext *avctx){
     Ir2Context * const ic = avctx->priv_data;
+    static VLC_TYPE vlc_tables[1 << CODE_VLC_BITS][2];
 
     ic->avctx = avctx;
 
     avctx->pix_fmt= PIX_FMT_YUV410P;
 
-    if (!ir2_vlc.table)
+    ir2_vlc.table = vlc_tables;
+    ir2_vlc.table_allocated = 1 << CODE_VLC_BITS;
 #ifdef ALT_BITSTREAM_READER_LE
         init_vlc(&ir2_vlc, CODE_VLC_BITS, IR2_CODES,
                  &ir2_codes[0][1], 4, 2,
-                 &ir2_codes[0][0], 4, 2, INIT_VLC_USE_STATIC | INIT_VLC_LE);
+                 &ir2_codes[0][0], 4, 2, INIT_VLC_USE_NEW_STATIC | INIT_VLC_LE);
 #else
         init_vlc(&ir2_vlc, CODE_VLC_BITS, IR2_CODES,
                  &ir2_codes[0][1], 4, 2,
-                 &ir2_codes[0][0], 4, 2, INIT_VLC_USE_STATIC);
+                 &ir2_codes[0][0], 4, 2, INIT_VLC_USE_NEW_STATIC);
 #endif
 
     return 0;
diff --git a/libavcodec/mpc7.c b/libavcodec/mpc7.c
index 2c4083fb73..75f65163ea 100644
--- a/libavcodec/mpc7.c
+++ b/libavcodec/mpc7.c
@@ -40,6 +40,13 @@
 
 static VLC scfi_vlc, dscf_vlc, hdr_vlc, quant_vlc[MPC7_QUANT_VLC_TABLES][2];
 
+static uint16_t quant_offsets[MPC7_QUANT_VLC_TABLES*2 + 1] =
+{
+       0, 512, 1024, 1536, 2052, 2564, 3076, 3588, 4100, 4612, 5124,
+       5636, 6164, 6676, 7224
+};
+
+
 static av_cold int mpc7_decode_init(AVCodecContext * avctx)
 {
     int i, j;
@@ -48,6 +55,11 @@ static av_cold int mpc7_decode_init(AVCodecContext * avctx)
     uint8_t buf[16];
     static int vlc_initialized = 0;
 
+    static VLC_TYPE scfi_table[1 << MPC7_SCFI_BITS][2];
+    static VLC_TYPE dscf_table[1 << MPC7_DSCF_BITS][2];
+    static VLC_TYPE hdr_table[1 << MPC7_HDR_BITS][2];
+    static VLC_TYPE quant_tables[7224][2];
+
     if(avctx->extradata_size < 16){
         av_log(avctx, AV_LOG_ERROR, "Too small extradata size (%i)!\n", avctx->extradata_size);
         return -1;
@@ -75,29 +87,37 @@ static av_cold int mpc7_decode_init(AVCodecContext * avctx)
 
     if(vlc_initialized) return 0;
     av_log(avctx, AV_LOG_DEBUG, "Initing VLC\n");
+    scfi_vlc.table = scfi_table;
+    scfi_vlc.table_allocated = 1 << MPC7_SCFI_BITS;
     if(init_vlc(&scfi_vlc, MPC7_SCFI_BITS, MPC7_SCFI_SIZE,
                 &mpc7_scfi[1], 2, 1,
-                &mpc7_scfi[0], 2, 1, INIT_VLC_USE_STATIC)){
+                &mpc7_scfi[0], 2, 1, INIT_VLC_USE_NEW_STATIC)){
         av_log(avctx, AV_LOG_ERROR, "Cannot init SCFI VLC\n");
         return -1;
     }
+    dscf_vlc.table = dscf_table;
+    dscf_vlc.table_allocated = 1 << MPC7_DSCF_BITS;
     if(init_vlc(&dscf_vlc, MPC7_DSCF_BITS, MPC7_DSCF_SIZE,
                 &mpc7_dscf[1], 2, 1,
-                &mpc7_dscf[0], 2, 1, INIT_VLC_USE_STATIC)){
+                &mpc7_dscf[0], 2, 1, INIT_VLC_USE_NEW_STATIC)){
         av_log(avctx, AV_LOG_ERROR, "Cannot init DSCF VLC\n");
         return -1;
     }
+    hdr_vlc.table = hdr_table;
+    hdr_vlc.table_allocated = 1 << MPC7_HDR_BITS;
     if(init_vlc(&hdr_vlc, MPC7_HDR_BITS, MPC7_HDR_SIZE,
                 &mpc7_hdr[1], 2, 1,
-                &mpc7_hdr[0], 2, 1, INIT_VLC_USE_STATIC)){
+                &mpc7_hdr[0], 2, 1, INIT_VLC_USE_NEW_STATIC)){
         av_log(avctx, AV_LOG_ERROR, "Cannot init HDR VLC\n");
         return -1;
     }
     for(i = 0; i < MPC7_QUANT_VLC_TABLES; i++){
         for(j = 0; j < 2; j++){
+            quant_vlc[i][j].table = &quant_tables[quant_offsets[i*2 + j]];
+            quant_vlc[i][j].table_allocated = quant_offsets[i*2 + j + 1] - quant_offsets[i*2 + j];
             if(init_vlc(&quant_vlc[i][j], 9, mpc7_quant_vlc_sizes[i],
                         &mpc7_quant_vlc[i][j][1], 4, 2,
-                        &mpc7_quant_vlc[i][j][0], 4, 2, INIT_VLC_USE_STATIC)){
+                        &mpc7_quant_vlc[i][j][0], 4, 2, INIT_VLC_USE_NEW_STATIC)){
                 av_log(avctx, AV_LOG_ERROR, "Cannot init QUANT VLC %i,%i\n",i,j);
                 return -1;
             }
diff --git a/libavcodec/mpc8.c b/libavcodec/mpc8.c
index 5ffd82864d..adee15f534 100644
--- a/libavcodec/mpc8.c
+++ b/libavcodec/mpc8.c
@@ -88,6 +88,10 @@ static int mpc8_get_mask(GetBitContext *gb, int size, int t)
     return mask;
 }
 
+static int vlc_offsets[13] = {
+    0, 640, 1184, 1748, 2298, 2426, 2554, 3066, 3578, 4106, 4618, 5196, 5708
+};
+
 static av_cold int mpc8_decode_init(AVCodecContext * avctx)
 {
     int i;
@@ -95,6 +99,17 @@ static av_cold int mpc8_decode_init(AVCodecContext * avctx)
     GetBitContext gb;
     static int vlc_initialized = 0;
 
+    static VLC_TYPE band_table[542][2];
+    static VLC_TYPE q1_table[520][2];
+    static VLC_TYPE q9up_table[524][2];
+    static VLC_TYPE scfi0_table[1 << MPC8_SCFI0_BITS][2];
+    static VLC_TYPE scfi1_table[1 << MPC8_SCFI1_BITS][2];
+    static VLC_TYPE dscf0_table[560][2];
+    static VLC_TYPE dscf1_table[598][2];
+    static VLC_TYPE q3_0_table[512][2];
+    static VLC_TYPE q3_1_table[516][2];
+    static VLC_TYPE codes_table[5708][2];
+
     if(avctx->extradata_size < 2){
         av_log(avctx, AV_LOG_ERROR, "Too small extradata size (%i)!\n", avctx->extradata_size);
         return -1;
@@ -116,61 +131,91 @@ static av_cold int mpc8_decode_init(AVCodecContext * avctx)
     if(vlc_initialized) return 0;
     av_log(avctx, AV_LOG_DEBUG, "Initing VLC\n");
 
+    band_vlc.table = band_table;
+    band_vlc.table_allocated = 542;
     init_vlc(&band_vlc, MPC8_BANDS_BITS, MPC8_BANDS_SIZE,
              mpc8_bands_bits,  1, 1,
-             mpc8_bands_codes, 1, 1, INIT_VLC_USE_STATIC);
+             mpc8_bands_codes, 1, 1, INIT_VLC_USE_NEW_STATIC);
 
+    q1_vlc.table = q1_table;
+    q1_vlc.table_allocated = 520;
     init_vlc(&q1_vlc, MPC8_Q1_BITS, MPC8_Q1_SIZE,
              mpc8_q1_bits,  1, 1,
-             mpc8_q1_codes, 1, 1, INIT_VLC_USE_STATIC);
+             mpc8_q1_codes, 1, 1, INIT_VLC_USE_NEW_STATIC);
+    q9up_vlc.table = q9up_table;
+    q9up_vlc.table_allocated = 524;
     init_vlc(&q9up_vlc, MPC8_Q9UP_BITS, MPC8_Q9UP_SIZE,
              mpc8_q9up_bits,  1, 1,
-             mpc8_q9up_codes, 1, 1, INIT_VLC_USE_STATIC);
+             mpc8_q9up_codes, 1, 1, INIT_VLC_USE_NEW_STATIC);
 
+    scfi_vlc[0].table = scfi0_table;
+    scfi_vlc[0].table_allocated = 1 << MPC8_SCFI0_BITS;
     init_vlc(&scfi_vlc[0], MPC8_SCFI0_BITS, MPC8_SCFI0_SIZE,
              mpc8_scfi0_bits,  1, 1,
-             mpc8_scfi0_codes, 1, 1, INIT_VLC_USE_STATIC);
+             mpc8_scfi0_codes, 1, 1, INIT_VLC_USE_NEW_STATIC);
+    scfi_vlc[1].table = scfi1_table;
+    scfi_vlc[1].table_allocated = 1 << MPC8_SCFI1_BITS;
     init_vlc(&scfi_vlc[1], MPC8_SCFI1_BITS, MPC8_SCFI1_SIZE,
              mpc8_scfi1_bits,  1, 1,
-             mpc8_scfi1_codes, 1, 1, INIT_VLC_USE_STATIC);
+             mpc8_scfi1_codes, 1, 1, INIT_VLC_USE_NEW_STATIC);
 
+    dscf_vlc[0].table = dscf0_table;
+    dscf_vlc[0].table_allocated = 560;
     init_vlc(&dscf_vlc[0], MPC8_DSCF0_BITS, MPC8_DSCF0_SIZE,
              mpc8_dscf0_bits,  1, 1,
-             mpc8_dscf0_codes, 1, 1, INIT_VLC_USE_STATIC);
+             mpc8_dscf0_codes, 1, 1, INIT_VLC_USE_NEW_STATIC);
+    dscf_vlc[1].table = dscf1_table;
+    dscf_vlc[1].table_allocated = 598;
     init_vlc(&dscf_vlc[1], MPC8_DSCF1_BITS, MPC8_DSCF1_SIZE,
              mpc8_dscf1_bits,  1, 1,
-             mpc8_dscf1_codes, 1, 1, INIT_VLC_USE_STATIC);
+             mpc8_dscf1_codes, 1, 1, INIT_VLC_USE_NEW_STATIC);
 
+    q3_vlc[0].table = q3_0_table;
+    q3_vlc[0].table_allocated = 512;
     init_vlc_sparse(&q3_vlc[0], MPC8_Q3_BITS, MPC8_Q3_SIZE,
              mpc8_q3_bits,  1, 1,
              mpc8_q3_codes, 1, 1,
-             mpc8_q3_syms,  1, 1, INIT_VLC_USE_STATIC);
+             mpc8_q3_syms,  1, 1, INIT_VLC_USE_NEW_STATIC);
+    q3_vlc[1].table = q3_1_table;
+    q3_vlc[1].table_allocated = 516;
     init_vlc_sparse(&q3_vlc[1], MPC8_Q4_BITS, MPC8_Q4_SIZE,
              mpc8_q4_bits,  1, 1,
              mpc8_q4_codes, 1, 1,
-             mpc8_q4_syms,  1, 1, INIT_VLC_USE_STATIC);
+             mpc8_q4_syms,  1, 1, INIT_VLC_USE_NEW_STATIC);
 
     for(i = 0; i < 2; i++){
+        res_vlc[i].table = &codes_table[vlc_offsets[0+i]];
+        res_vlc[i].table_allocated = vlc_offsets[1+i] - vlc_offsets[0+i];
         init_vlc(&res_vlc[i], MPC8_RES_BITS, MPC8_RES_SIZE,
                  &mpc8_res_bits[i],  1, 1,
-                 &mpc8_res_codes[i], 1, 1, INIT_VLC_USE_STATIC);
+                 &mpc8_res_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
 
+        q2_vlc[i].table = &codes_table[vlc_offsets[2+i]];
+        q2_vlc[i].table_allocated = vlc_offsets[3+i] - vlc_offsets[2+i];
         init_vlc(&q2_vlc[i], MPC8_Q2_BITS, MPC8_Q2_SIZE,
                  &mpc8_q2_bits[i],  1, 1,
-                 &mpc8_q2_codes[i], 1, 1, INIT_VLC_USE_STATIC);
+                 &mpc8_q2_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
 
+        quant_vlc[0][i].table = &codes_table[vlc_offsets[4+i]];
+        quant_vlc[0][i].table_allocated = vlc_offsets[5+i] - vlc_offsets[4+i];
         init_vlc(&quant_vlc[0][i], MPC8_Q5_BITS, MPC8_Q5_SIZE,
                  &mpc8_q5_bits[i],  1, 1,
-                 &mpc8_q5_codes[i], 1, 1, INIT_VLC_USE_STATIC);
+                 &mpc8_q5_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
+        quant_vlc[1][i].table = &codes_table[vlc_offsets[6+i]];
+        quant_vlc[1][i].table_allocated = vlc_offsets[7+i] - vlc_offsets[6+i];
         init_vlc(&quant_vlc[1][i], MPC8_Q6_BITS, MPC8_Q6_SIZE,
                  &mpc8_q6_bits[i],  1, 1,
-                 &mpc8_q6_codes[i], 1, 1, INIT_VLC_USE_STATIC);
+                 &mpc8_q6_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
+        quant_vlc[2][i].table = &codes_table[vlc_offsets[8+i]];
+        quant_vlc[2][i].table_allocated = vlc_offsets[9+i] - vlc_offsets[8+i];
         init_vlc(&quant_vlc[2][i], MPC8_Q7_BITS, MPC8_Q7_SIZE,
                  &mpc8_q7_bits[i],  1, 1,
-                 &mpc8_q7_codes[i], 1, 1, INIT_VLC_USE_STATIC);
+                 &mpc8_q7_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
+        quant_vlc[3][i].table = &codes_table[vlc_offsets[10+i]];
+        quant_vlc[3][i].table_allocated = vlc_offsets[11+i] - vlc_offsets[10+i];
         init_vlc(&quant_vlc[3][i], MPC8_Q8_BITS, MPC8_Q8_SIZE,
                  &mpc8_q8_bits[i],  1, 1,
-                 &mpc8_q8_codes[i], 1, 1, INIT_VLC_USE_STATIC);
+                 &mpc8_q8_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
     }
     vlc_initialized = 1;
     avctx->sample_fmt = SAMPLE_FMT_S16;
diff --git a/libavcodec/wnv1.c b/libavcodec/wnv1.c
index 94240aba58..dc17e96659 100644
--- a/libavcodec/wnv1.c
+++ b/libavcodec/wnv1.c
@@ -129,15 +129,16 @@ static int decode_frame(AVCodecContext *avctx,
 
 static av_cold int decode_init(AVCodecContext *avctx){
     WNV1Context * const l = avctx->priv_data;
+    static VLC_TYPE code_table[1 << CODE_VLC_BITS][2];
 
     l->avctx = avctx;
     avctx->pix_fmt = PIX_FMT_YUV422P;
 
-    if(!code_vlc.table){
+    code_vlc.table = code_table;
+    code_vlc.table_allocated = 1 << CODE_VLC_BITS;
         init_vlc(&code_vlc, CODE_VLC_BITS, 16,
                     &code_tab[0][1], 4, 2,
-                    &code_tab[0][0], 4, 2, INIT_VLC_USE_STATIC);
-    }
+                    &code_tab[0][0], 4, 2, INIT_VLC_USE_NEW_STATIC);
 
     return 0;
 }