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

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

1 files changed, 60 insertions, 15 deletions

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;