From: Wu Jianhua <toq...@outlook.com>
Signed-off-by: Wu Jianhua <toq...@outlook.com>
---
libavcodec/vvc/cabac.c | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/libavcodec/vvc/cabac.c b/libavcodec/vvc/cabac.c
index 5510144893..54055ed736 100644
--- a/libavcodec/vvc/cabac.c
+++ b/libavcodec/vvc/cabac.c
@@ -928,6 +928,27 @@ static int truncated_binary_decode(VVCLocalContext *lc,
const int c_max)
return v;
}
+// 9.3.3.5 k-th order Exp - Golomb binarization process
+static int kth_order_egk_decode(CABACContext *c, int k)
+{
+ int bit = 1;
+ int value = 0;
+ int symbol = 0;
+
+ while (bit) {
+ bit = get_cabac_bypass(c);
+ value += bit << k++;
+ }
+
+ if (--k) {
+ for (int i = 0; i < k; i++)
+ symbol = (symbol << 1) | get_cabac_bypass(c);
+ value += symbol;
+ }
+
+ return value;
+}
+
// 9.3.3.6 Limited k-th order Exp-Golomb binarization process
static int limited_kth_order_egk_decode(CABACContext *c, const int k, const
int max_pre_ext_len, const int trunc_suffix_len)
{
--
2.44.0.windows.1
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