dv: get rid of global non-const tables

Instead, store them in the context and compute on each parameter change.

1 files changed, 5 insertions, 9 deletions

diff --git a/libavcodec/dv.c b/libavcodec/dv.c
index 1a54c4e..143a5cc 100644
--- a/libavcodec/dv.c
+++ b/libavcodec/dv.c
@@ -175,13 +175,12 @@ static const uint8_t dv100_qstep[16] = {
 
 static const uint8_t dv_quant_areas[4]  = { 6, 21, 43, 64 };
 
-int ff_dv_init_dynamic_tables(const DVprofile *d)
+int ff_dv_init_dynamic_tables(DVVideoContext *ctx, const DVprofile *d)
 {
     int j,i,c,s,p;
     uint32_t *factor1, *factor2;
     const int *iweight1, *iweight2;
 
-    if (!d->work_chunks[dv_work_pool_size(d)-1].buf_offset) {
         p = i = 0;
         for (c=0; c<d->n_difchan; c++) {
             for (s=0; s<d->difseg_size; s++) {
@@ -190,18 +189,16 @@ int ff_dv_init_dynamic_tables(const DVprofile *d)
                     p += !(j%3);
                     if (!(DV_PROFILE_IS_1080i50(d) && c != 0 && s == 11) &&
                         !(DV_PROFILE_IS_720p50(d) && s > 9)) {
-                          dv_calc_mb_coordinates(d, c, s, j, &d->work_chunks[i].mb_coordinates[0]);
-                          d->work_chunks[i++].buf_offset = p;
+                          dv_calc_mb_coordinates(d, c, s, j, &ctx->work_chunks[i].mb_coordinates[0]);
+                          ctx->work_chunks[i++].buf_offset = p;
                     }
                     p += 5;
                 }
             }
         }
-    }
 
-    if (!d->idct_factor[DV_PROFILE_IS_HD(d)?8191:5631]) {
-        factor1 = &d->idct_factor[0];
-        factor2 = &d->idct_factor[DV_PROFILE_IS_HD(d)?4096:2816];
+        factor1 = &ctx->idct_factor[0];
+        factor2 = &ctx->idct_factor[DV_PROFILE_IS_HD(d) ? 4096 : 2816];
         if (d->height == 720) {
             iweight1 = &ff_dv_iweight_720_y[0];
             iweight2 = &ff_dv_iweight_720_c[0];
@@ -231,7 +228,6 @@ int ff_dv_init_dynamic_tables(const DVprofile *d)
                 }
             }
         }
-    }
 
     return 0;
 }