On Fri, Oct 4, 2024 at 10:31 PM Nuo Mi <nuomi2...@gmail.com> wrote:
> This change will save approximately 531 MB for an 8K clip when processed
> with 16 threads.
>
Applied.
> The calculation is as follows:
> 7680 * 4320 * sizeof(int) * 2 * 2 * 16 / (4 * 4).
> ---
> libavcodec/vvc/ctu.c | 10 +++-------
> libavcodec/vvc/dec.c | 2 --
> libavcodec/vvc/dec.h | 2 --
> 3 files changed, 3 insertions(+), 11 deletions(-)
>
> diff --git a/libavcodec/vvc/ctu.c b/libavcodec/vvc/ctu.c
> index e49976c66b..1e06119cfd 100644
> --- a/libavcodec/vvc/ctu.c
> +++ b/libavcodec/vvc/ctu.c
> @@ -38,7 +38,7 @@ typedef enum VVCModeType {
> MODE_TYPE_INTRA,
> } VVCModeType;
>
> -static void set_tb_pos(const VVCFrameContext *fc, const TransformBlock
> *tb)
> +static void set_tb_size(const VVCFrameContext *fc, const TransformBlock
> *tb)
> {
> const int x_tb = tb->x0 >> MIN_TU_LOG2;
> const int y_tb = tb->y0 >> MIN_TU_LOG2;
> @@ -50,10 +50,6 @@ static void set_tb_pos(const VVCFrameContext *fc, const
> TransformBlock *tb)
>
> for (int y = y_tb; y < end; y++) {
> const int off = y * fc->ps.pps->min_tu_width + x_tb;
> - for (int i = 0; i < width; i++) {
> - fc->tab.tb_pos_x0[is_chroma][off + i] = tb->x0;
> - fc->tab.tb_pos_y0[is_chroma][off + i] = tb->y0;
> - }
> memset(fc->tab.tb_width [is_chroma] + off, tb->tb_width, width);
> memset(fc->tab.tb_height[is_chroma] + off, tb->tb_height, width);
> }
> @@ -397,7 +393,7 @@ static int hls_transform_unit(VVCLocalContext *lc, int
> x0, int y0,int tu_width,
> set_tb_tab(fc->tab.tu_coded_flag[tb->c_idx],
> tu->coded_flag[tb->c_idx], fc, tb);
> }
> if (tb->c_idx != CR)
> - set_tb_pos(fc, tb);
> + set_tb_size(fc, tb);
> if (tb->c_idx == CB)
> set_tb_tab(fc->tab.tu_joint_cbcr_residual_flag,
> tu->joint_cbcr_residual_flag, fc, tb);
> }
> @@ -514,7 +510,7 @@ static int skipped_transform_tree(VVCLocalContext *lc,
> int x0, int y0,int tu_wid
> for (int i = c_start; i < c_end; i++) {
> TransformBlock *tb = add_tb(tu, lc, x0, y0, tu_width >>
> sps->hshift[i], tu_height >> sps->vshift[i], i);
> if (i != CR)
> - set_tb_pos(fc, tb);
> + set_tb_size(fc, tb);
> }
> }
>
> diff --git a/libavcodec/vvc/dec.c b/libavcodec/vvc/dec.c
> index 13ca752eec..9b7afe4c38 100644
> --- a/libavcodec/vvc/dec.c
> +++ b/libavcodec/vvc/dec.c
> @@ -207,8 +207,6 @@ static void min_tu_nz_tl_init(TabList *l,
> VVCFrameContext *fc)
> tl_init(l, 0, changed);
>
> for (int i = LUMA; i <= CHROMA; i++) {
> - TL_ADD(tb_pos_x0[i], pic_size_in_min_tu);
> - TL_ADD(tb_pos_y0[i], pic_size_in_min_tu);
> TL_ADD(tb_width[i], pic_size_in_min_tu);
> TL_ADD(tb_height[i], pic_size_in_min_tu);
> }
> diff --git a/libavcodec/vvc/dec.h b/libavcodec/vvc/dec.h
> index 159c60942b..7254b515fd 100644
> --- a/libavcodec/vvc/dec.h
> +++ b/libavcodec/vvc/dec.h
> @@ -172,8 +172,6 @@ typedef struct VVCFrameContext {
>
> uint8_t *tu_coded_flag[VVC_MAX_SAMPLE_ARRAYS]; ///<
> tu_y_coded_flag[][], tu_cb_coded_flag[][], tu_cr_coded_flag[][]
> uint8_t *tu_joint_cbcr_residual_flag; ///<
> tu_joint_cbcr_residual_flag[][]
> - int *tb_pos_x0[2];
> - int *tb_pos_y0[2];
> uint8_t *tb_width[2];
> uint8_t *tb_height[2];
> uint8_t *pcmf[2];
> --
> 2.34.1
>
>
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