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hevc/pps: optimized size of min_tb_addr_zs

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reduce computation too
(cherry picked from commit 39c4d45c7788081c45c7fae51b7c5d0bcbaece9d)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
gcocherel 2014-06-24 08:27:16 +02:00 committed by Michael Niedermayer
parent f7f1f4c7ce
commit ba70563d55
4 changed files with 36 additions and 24 deletions
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2
libavcodec/hevc.h
View File

@ -463,6 +463,7 @@ typedef struct HEVCSPS {
int min_tb_height;
int min_pu_width;
int min_pu_height;
int tb_mask;
int hshift[3];
int vshift[3];
@ -532,6 +533,7 @@ typedef struct HEVCPPS {
int *tile_id; ///< TileId
int *tile_pos_rs; ///< TilePosRS
int *min_tb_addr_zs; ///< MinTbAddrZS
int *min_tb_addr_zs_tab;///< MinTbAddrZS
} HEVCPPS;
typedef struct SliceHeader {

23
libavcodec/hevc_mvs.c
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@ -65,20 +65,27 @@ static int z_scan_block_avail(HEVCContext *s, int xCurr, int yCurr,
int xN, int yN)
{
#define MIN_TB_ADDR_ZS(x, y) \
s->pps->min_tb_addr_zs[(y) * s->sps->min_tb_width + (x)]
int Curr = MIN_TB_ADDR_ZS(xCurr >> s->sps->log2_min_tb_size,
yCurr >> s->sps->log2_min_tb_size);
int N;
s->pps->min_tb_addr_zs[(y) * (s->sps->tb_mask+2) + (x)]
int xCurr_ctb = xCurr >> s->sps->log2_ctb_size;
int yCurr_ctb = yCurr >> s->sps->log2_ctb_size;
int xN_ctb = xN >> s->sps->log2_ctb_size;
int yN_ctb = yN >> s->sps->log2_ctb_size;
if (xN < 0 || yN < 0 ||
xN >= s->sps->width ||
yN >= s->sps->height)
return 0;
N = MIN_TB_ADDR_ZS(xN >> s->sps->log2_min_tb_size,
yN >> s->sps->log2_min_tb_size);
return N <= Curr;
if( yN_ctb < yCurr_ctb || xN_ctb < xCurr_ctb )
return 1;
else {
int Curr = MIN_TB_ADDR_ZS((xCurr >> s->sps->log2_min_tb_size) & s->sps->tb_mask,
(yCurr >> s->sps->log2_min_tb_size) & s->sps->tb_mask);
int N = MIN_TB_ADDR_ZS((xN >> s->sps->log2_min_tb_size) & s->sps->tb_mask,
(yN >> s->sps->log2_min_tb_size) & s->sps->tb_mask);
return N <= Curr;
}
}
static int same_prediction_block(HEVCLocalContext *lc, int log2_cb_size,

22
libavcodec/hevc_ps.c
View File

@ -907,6 +907,7 @@ int ff_hevc_decode_nal_sps(HEVCContext *s)
sps->min_tb_height = sps->height >> sps->log2_min_tb_size;
sps->min_pu_width = sps->width >> sps->log2_min_pu_size;
sps->min_pu_height = sps->height >> sps->log2_min_pu_size;
sps->tb_mask = (1 << (sps->log2_ctb_size - sps->log2_min_tb_size)) - 1;
sps->qp_bd_offset = 6 * (sps->bit_depth - 8);
@ -981,7 +982,7 @@ static void hevc_pps_free(void *opaque, uint8_t *data)
av_freep(&pps->ctb_addr_ts_to_rs);
av_freep(&pps->tile_pos_rs);
av_freep(&pps->tile_id);
av_freep(&pps->min_tb_addr_zs);
av_freep(&pps->min_tb_addr_zs_tab);
av_freep(&pps);
}
@ -990,7 +991,7 @@ int ff_hevc_decode_nal_pps(HEVCContext *s)
{
GetBitContext *gb = &s->HEVClc->gb;
HEVCSPS *sps = NULL;
int pic_area_in_ctbs, pic_area_in_min_cbs, pic_area_in_min_tbs;
int pic_area_in_ctbs;
int log2_diff_ctb_min_tb_size;
int i, j, x, y, ctb_addr_rs, tile_id;
int ret = 0;
@ -1229,15 +1230,13 @@ int ff_hevc_decode_nal_pps(HEVCContext *s)
* 6.5
*/
pic_area_in_ctbs = sps->ctb_width * sps->ctb_height;
pic_area_in_min_cbs = sps->min_cb_width * sps->min_cb_height;
pic_area_in_min_tbs = sps->min_tb_width * sps->min_tb_height;
pps->ctb_addr_rs_to_ts = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->ctb_addr_rs_to_ts));
pps->ctb_addr_ts_to_rs = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->ctb_addr_ts_to_rs));
pps->tile_id = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->tile_id));
pps->min_tb_addr_zs = av_malloc_array(pic_area_in_min_tbs, sizeof(*pps->min_tb_addr_zs));
pps->min_tb_addr_zs_tab = av_malloc_array((sps->tb_mask+2) * (sps->tb_mask+2), sizeof(*pps->min_tb_addr_zs_tab));
if (!pps->ctb_addr_rs_to_ts || !pps->ctb_addr_ts_to_rs ||
!pps->tile_id || !pps->min_tb_addr_zs) {
!pps->tile_id || !pps->min_tb_addr_zs_tab) {
ret = AVERROR(ENOMEM);
goto err;
}
@ -1292,8 +1291,13 @@ int ff_hevc_decode_nal_pps(HEVCContext *s)
pps->tile_pos_rs[j * pps->num_tile_columns + i] = pps->row_bd[j] * sps->ctb_width + pps->col_bd[i];
log2_diff_ctb_min_tb_size = sps->log2_ctb_size - sps->log2_min_tb_size;
for (y = 0; y < sps->min_tb_height; y++) {
for (x = 0; x < sps->min_tb_width; x++) {
pps->min_tb_addr_zs = &pps->min_tb_addr_zs_tab[1*(sps->tb_mask+2)+1];
for (y = 0; y < sps->tb_mask+2; y++) {
pps->min_tb_addr_zs_tab[y*(sps->tb_mask+2)] = -1;
pps->min_tb_addr_zs_tab[y] = -1;
}
for (y = 0; y < sps->tb_mask+1; y++) {
for (x = 0; x < sps->tb_mask+1; x++) {
int tb_x = x >> log2_diff_ctb_min_tb_size;
int tb_y = y >> log2_diff_ctb_min_tb_size;
int ctb_addr_rs = sps->ctb_width * tb_y + tb_x;
@ -1303,7 +1307,7 @@ int ff_hevc_decode_nal_pps(HEVCContext *s)
int m = 1 << i;
val += (m & x ? m * m : 0) + (m & y ? 2 * m * m : 0);
}
pps->min_tb_addr_zs[y * sps->min_tb_width + x] = val;
pps->min_tb_addr_zs[y * (sps->tb_mask+2) + x] = val;
}
}

13
libavcodec/hevcpred_template.c
View File

@ -39,8 +39,7 @@ static av_always_inline void FUNC(intra_pred)(HEVCContext *s, int x0, int y0,
#define IS_INTRA(x, y) \
(MVF_PU(x, y).pred_flag == PF_INTRA)
#define MIN_TB_ADDR_ZS(x, y) \
s->pps->min_tb_addr_zs[(y) * s->sps->min_tb_width + (x)]
s->pps->min_tb_addr_zs[(y) * (s->sps->tb_mask+2) + (x)]
#define EXTEND(ptr, val, len) \
do { \
pixel4 pix = PIXEL_SPLAT_X4(val); \
@ -82,8 +81,9 @@ do { \
int size_in_tbs_v = size_in_luma_v >> s->sps->log2_min_tb_size;
int x = x0 >> hshift;
int y = y0 >> vshift;
int x_tb = x0 >> s->sps->log2_min_tb_size;
int y_tb = y0 >> s->sps->log2_min_tb_size;
int x_tb = (x0 >> s->sps->log2_min_tb_size) & s->sps->tb_mask;
int y_tb = (y0 >> s->sps->log2_min_tb_size) & s->sps->tb_mask;
int cur_tb_addr = MIN_TB_ADDR_ZS(x_tb, y_tb);
ptrdiff_t stride = s->frame->linesize[c_idx] / sizeof(pixel);
@ -103,12 +103,11 @@ do { \
pixel *top = top_array + 1;
pixel *filtered_left = filtered_left_array + 1;
pixel *filtered_top = filtered_top_array + 1;
int cand_bottom_left = lc->na.cand_bottom_left && cur_tb_addr > MIN_TB_ADDR_ZS(x_tb - 1, y_tb + size_in_tbs_v);
int cand_bottom_left = lc->na.cand_bottom_left && cur_tb_addr > MIN_TB_ADDR_ZS( x_tb - 1, (y_tb + size_in_tbs_v) & s->sps->tb_mask);
int cand_left = lc->na.cand_left;
int cand_up_left = lc->na.cand_up_left;
int cand_up = lc->na.cand_up;
int cand_up_right = lc->na.cand_up_right && cur_tb_addr > MIN_TB_ADDR_ZS(x_tb + size_in_tbs_h, y_tb - 1);
int cand_up_right = lc->na.cand_up_right && cur_tb_addr > MIN_TB_ADDR_ZS((x_tb + size_in_tbs_h) & s->sps->tb_mask, y_tb - 1);
int bottom_left_size = (FFMIN(y0 + 2 * size_in_luma_v, s->sps->height) -
(y0 + size_in_luma_v)) >> vshift;