[FFmpeg-devel] [PATCH 02/11] avcodec/vvcdec: refact, combine bs tab with tu tab

[Nuo Mi <nuomi2021@gmail.com>]

---
 libavcodec/vvc/dec.c    | 23 ++++-------------------
 libavcodec/vvc/dec.h    |  2 --
 libavcodec/vvc/filter.c |  4 ++--
 3 files changed, 6 insertions(+), 23 deletions(-)

diff --git a/libavcodec/vvc/dec.c b/libavcodec/vvc/dec.c
index d04f68e4cf..ee009d4181 100644
--- a/libavcodec/vvc/dec.c
+++ b/libavcodec/vvc/dec.c
@@ -178,24 +178,12 @@ static void min_tu_tl_init(TabList *l, VVCFrameContext *fc)
         TL_ADD(tu_coded_flag[i], pic_size_in_min_tu);
         TL_ADD(qp[i],            pic_size_in_min_tu);
     }
-}
-
-static void bs_tl_init(TabList *l, VVCFrameContext *fc)
-{
-    const VVCPPS *pps   = fc->ps.pps;
-    const int bs_width  = pps ? (pps->width >>  2) + 1 : 0;
-    const int bs_height = pps ? (pps->height >> 2) + 1 : 0;
-    const int bs_count  = bs_width * bs_height;
-    const int changed   = fc->tab.sz.bs_width != bs_width ||
-        fc->tab.sz.bs_height != bs_height;
-
-    tl_init(l, 1, changed);
 
-    for (int i = 0; i < 2; i++) {
+    for (int vertical = 0; vertical < 2; vertical++) {
         for (int j = 0; j < VVC_MAX_SAMPLE_ARRAYS; j++)
-            TL_ADD(bs[i][j], bs_count);
-        TL_ADD(max_len_p[i], bs_count);
-        TL_ADD(max_len_q[i], bs_count);
+            TL_ADD(bs[vertical][j], pic_size_in_min_tu);
+        TL_ADD(max_len_p[vertical], pic_size_in_min_tu);
+        TL_ADD(max_len_q[vertical], pic_size_in_min_tu);
     }
 }
 
@@ -297,7 +285,6 @@ static int frame_context_for_each_tl(VVCFrameContext *fc, int (*unary_fn)(TabLis
         min_cb_tl_init,
         min_pu_tl_init,
         min_tu_tl_init,
-        bs_tl_init,
         pixel_buffer_nz_tl_init,
         msm_tl_init,
         ispmf_tl_init,
@@ -376,8 +363,6 @@ static int pic_arrays_init(VVCContext *s, VVCFrameContext *fc)
     fc->tab.sz.ctu_height         = pps->ctb_height;
     fc->tab.sz.chroma_format_idc  = sps->r->sps_chroma_format_idc;
     fc->tab.sz.pixel_shift        = sps->pixel_shift;
-    fc->tab.sz.bs_width           = (fc->ps.pps->width >> 2) + 1;
-    fc->tab.sz.bs_height          = (fc->ps.pps->height >> 2) + 1;
 
     return 0;
 }
diff --git a/libavcodec/vvc/dec.h b/libavcodec/vvc/dec.h
index a8492f1398..eb8d0bad6b 100644
--- a/libavcodec/vvc/dec.h
+++ b/libavcodec/vvc/dec.h
@@ -205,8 +205,6 @@ typedef struct VVCFrameContext {
             int height;
             int chroma_format_idc;
             int pixel_shift;
-            int bs_width;
-            int bs_height;
             int ibc_buffer_width;       ///< IbcBufWidth
         } sz;
     } tab;
diff --git a/libavcodec/vvc/filter.c b/libavcodec/vvc/filter.c
index 7ffcb29f47..c96e59df89 100644
--- a/libavcodec/vvc/filter.c
+++ b/libavcodec/vvc/filter.c
@@ -372,8 +372,8 @@ void ff_vvc_sao_filter(VVCLocalContext *lc, int x0, int y0)
     }
 }
 
-#define TAB_BS(t, x, y)       (t)[((y) >> 2) * (fc->tab.sz.bs_width) + ((x) >> 2)]
-#define TAB_MAX_LEN(t, x, y)  (t)[((y) >> 2) * (fc->tab.sz.bs_width) + ((x) >> 2)]
+#define TAB_BS(t, x, y)       (t)[((y) >> MIN_TU_LOG2) * (fc->ps.pps->min_tu_width) + ((x) >> MIN_TU_LOG2)]
+#define TAB_MAX_LEN(t, x, y)  (t)[((y) >> MIN_TU_LOG2) * (fc->ps.pps->min_tu_width) + ((x) >> MIN_TU_LOG2)]
 
 //8 samples a time
 #define DEBLOCK_STEP            8
-- 
2.34.1

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