From daf6fcd816783dfd1f82a795ed774933880abcc1 Mon Sep 17 00:00:00 2001 From: Nuo Mi Date: Sun, 28 Jul 2024 11:18:06 +0800 Subject: [PATCH] avcodec/vvcdec: do not zero frame qp table For luma, qp can only change at the CU level, so the qp tab size is related to the CU. For chroma, considering the joint CbCr, the QP tab size is related to the TU. --- libavcodec/vvc/dec.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/libavcodec/vvc/dec.c b/libavcodec/vvc/dec.c index c688f7d70d..575bcfa33d 100644 --- a/libavcodec/vvc/dec.c +++ b/libavcodec/vvc/dec.c @@ -145,6 +145,8 @@ static void min_cb_nz_tl_init(TabList *l, VVCFrameContext *fc) TL_ADD(cp_mv[i], pic_size_in_min_cb * MAX_CONTROL_POINTS); TL_ADD(cpm[i], pic_size_in_min_cb); } + // For luma, qp can only change at the CU level, so the qp tab size is related to the CU. + TL_ADD(qp[LUMA], pic_size_in_min_cb); } static void min_pu_tl_init(TabList *l, VVCFrameContext *fc) @@ -186,7 +188,6 @@ static void min_tu_tl_init(TabList *l, VVCFrameContext *fc) for (int i = 0; i < VVC_MAX_SAMPLE_ARRAYS; i++) { TL_ADD(tu_coded_flag[i], pic_size_in_min_tu); - TL_ADD(qp[i], pic_size_in_min_tu); for (int vertical = 0; vertical < 2; vertical++) TL_ADD(bs[vertical][i], pic_size_in_min_tu); @@ -212,6 +213,10 @@ static void min_tu_nz_tl_init(TabList *l, VVCFrameContext *fc) TL_ADD(max_len_p[vertical], pic_size_in_min_tu); TL_ADD(max_len_q[vertical], pic_size_in_min_tu); } + + // For chroma, considering the joint CbCr, the QP tab size is related to the TU. + for (int i = CB; i < VVC_MAX_SAMPLE_ARRAYS; i++) + TL_ADD(qp[i], pic_size_in_min_tu); } static void pixel_buffer_nz_tl_init(TabList *l, VVCFrameContext *fc)