dv: move inverse weight tables to decoder

The encoder has its own tables and does not access the idct_factor
member of the DVVideoContext structure.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

1 files changed, 0 insertions, 34 deletions

diff --git a/libavcodec/dv.c b/libavcodec/dv.c
index 1f0486107a..6cd8a89f8b 100644
--- a/libavcodec/dv.c
+++ b/libavcodec/dv.c
@@ -185,7 +185,6 @@ static const uint8_t dv_quant_areas[4] = { 6, 21, 43, 64 };
 int ff_dv_init_dynamic_tables(DVVideoContext *ctx, const AVDVProfile *d)
 {
     int j, i, c, s, p;
-    uint32_t *factor1, *factor2;
 
     p = i = 0;
     for (c = 0; c < d->n_difchan; c++) {
@@ -203,39 +202,6 @@ int ff_dv_init_dynamic_tables(DVVideoContext *ctx, const AVDVProfile *d)
         }
     }
 
-    factor1 = &ctx->idct_factor[0];
-    factor2 = &ctx->idct_factor[DV_PROFILE_IS_HD(d) ? 4096 : 2816];
-    if (DV_PROFILE_IS_HD(d)) {
-        const uint16_t *iweight1, *iweight2;
-        if (d->height == 720) {
-            iweight1 = &ff_dv_iweight_720_y[0];
-            iweight2 = &ff_dv_iweight_720_c[0];
-        } else {
-            iweight1 = &ff_dv_iweight_1080_y[0];
-            iweight2 = &ff_dv_iweight_1080_c[0];
-        }
-        for (c = 0; c < 4; c++) {
-            for (s = 0; s < 16; s++) {
-                for (i = 0; i < 64; i++) {
-                    *factor1++ = (dv100_qstep[s] << (c + 9)) * iweight1[i];
-                    *factor2++ = (dv100_qstep[s] << (c + 9)) * iweight2[i];
-                }
-            }
-        }
-    } else {
-        const uint16_t *iweight1 = &ff_dv_iweight_88[0];
-        for (j = 0; j < 2; j++, iweight1 = &ff_dv_iweight_248[0]) {
-            for (s = 0; s < 22; s++) {
-                for (i = c = 0; c < 4; c++) {
-                    for (; i < dv_quant_areas[c]; i++) {
-                        *factor1   = iweight1[i] << (ff_dv_quant_shifts[s][c] + 1);
-                        *factor2++ = (*factor1++) << 1;
-                    }
-                }
-            }
-        }
-    }
-
     return 0;
 }