generic-library/vpx
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

token_cache changes in decoder

Browse Source 
Removes stack-alocation of token_cache in decode_coefs function

Seems to achieve about 1% decode speed improvement as tested on
25 480p videos.

Change-Id: I8e7eb3361fa09d9654dfad0677a6d606701fdc6e
This commit is contained in:
Deb Mukherjee
2013-11-04 16:34:18 -08:00
parent be8a4cbbdd
commit 3a833ea38f
4 changed files with 46 additions and 26 deletions
Download Patch File Download Diff File Expand all files Collapse all files

55
vp9/decoder/vp9_decodframe.c
View File

@@ -41,6 +41,7 @@ typedef struct TileWorkerData {
VP9_COMMON *cm;
vp9_reader bit_reader;
DECLARE_ALIGNED(16, MACROBLOCKD, xd);
DECLARE_ALIGNED(16, unsigned char, token_cache[1024]);
} TileWorkerData;
static int read_be32(const uint8_t *p) {
@@ -297,6 +298,7 @@ struct intra_args {
VP9_COMMON *cm;
MACROBLOCKD *xd;
vp9_reader *r;
unsigned char* token_cache;
};
static void predict_and_reconstruct_intra_block(int plane, int block,
@@ -326,7 +328,7 @@ static void predict_and_reconstruct_intra_block(int plane, int block,
if (!mi->mbmi.skip_coeff) {
vp9_decode_block_tokens(cm, xd, plane, block, plane_bsize, tx_size,
args->r);
args->r, args->token_cache);
inverse_transform_block(xd, plane, block, plane_bsize, tx_size);
}
}
@@ -336,6 +338,7 @@ struct inter_args {
MACROBLOCKD *xd;
vp9_reader *r;
int *eobtotal;
unsigned char* token_cache;
};
static void reconstruct_inter_block(int plane, int block,
@@ -346,7 +349,8 @@ static void reconstruct_inter_block(int plane, int block,
MACROBLOCKD *const xd = args->xd;
*args->eobtotal += vp9_decode_block_tokens(cm, xd, plane, block,
plane_bsize, tx_size, args->r);
plane_bsize, tx_size,
args->r, args->token_cache);
inverse_transform_block(xd, plane, block, plane_bsize, tx_size);
}
@@ -398,7 +402,8 @@ static void set_ref(VP9_COMMON *const cm, MACROBLOCKD *const xd,
static void decode_modes_b(VP9_COMMON *const cm, MACROBLOCKD *const xd,
const TileInfo *const tile,
int mi_row, int mi_col,
vp9_reader *r, BLOCK_SIZE bsize) {
vp9_reader *r, BLOCK_SIZE bsize,
unsigned char *token_cache) {
const int less8x8 = bsize < BLOCK_8X8;
MB_MODE_INFO *mbmi;
@@ -420,7 +425,7 @@ static void decode_modes_b(VP9_COMMON *const cm, MACROBLOCKD *const xd,
}
if (!is_inter_block(mbmi)) {
struct intra_args arg = { cm, xd, r };
struct intra_args arg = { cm, xd, r, token_cache };
foreach_transformed_block(xd, bsize, predict_and_reconstruct_intra_block,
&arg);
} else {
@@ -438,7 +443,7 @@ static void decode_modes_b(VP9_COMMON *const cm, MACROBLOCKD *const xd,
// Reconstruction
if (!mbmi->skip_coeff) {
int eobtotal = 0;
struct inter_args arg = { cm, xd, r, &eobtotal };
struct inter_args arg = { cm, xd, r, &eobtotal, token_cache };
foreach_transformed_block(xd, bsize, reconstruct_inter_block, &arg);
if (!less8x8 && eobtotal == 0)
mbmi->skip_coeff = 1; // skip loopfilter
@@ -477,7 +482,8 @@ static PARTITION_TYPE read_partition(VP9_COMMON *cm, MACROBLOCKD *xd, int hbs,
static void decode_modes_sb(VP9_COMMON *const cm, MACROBLOCKD *const xd,
const TileInfo *const tile,
int mi_row, int mi_col,
vp9_reader* r, BLOCK_SIZE bsize) {
vp9_reader* r, BLOCK_SIZE bsize,
unsigned char *token_cache) {
const int hbs = num_8x8_blocks_wide_lookup[bsize] / 2;
PARTITION_TYPE partition;
BLOCK_SIZE subsize;
@@ -488,27 +494,33 @@ static void decode_modes_sb(VP9_COMMON *const cm, MACROBLOCKD *const xd,
partition = read_partition(cm, xd, hbs, mi_row, mi_col, bsize, r);
subsize = get_subsize(bsize, partition);
if (subsize < BLOCK_8X8) {
decode_modes_b(cm, xd, tile, mi_row, mi_col, r, subsize);
decode_modes_b(cm, xd, tile, mi_row, mi_col, r, subsize, token_cache);
} else {
switch (partition) {
case PARTITION_NONE:
decode_modes_b(cm, xd, tile, mi_row, mi_col, r, subsize);
decode_modes_b(cm, xd, tile, mi_row, mi_col, r, subsize, token_cache);
break;
case PARTITION_HORZ:
decode_modes_b(cm, xd, tile, mi_row, mi_col, r, subsize);
decode_modes_b(cm, xd, tile, mi_row, mi_col, r, subsize, token_cache);
if (mi_row + hbs < cm->mi_rows)
decode_modes_b(cm, xd, tile, mi_row + hbs, mi_col, r, subsize);
decode_modes_b(cm, xd, tile, mi_row + hbs, mi_col, r, subsize,
token_cache);
break;
case PARTITION_VERT:
decode_modes_b(cm, xd, tile, mi_row, mi_col, r, subsize);
decode_modes_b(cm, xd, tile, mi_row, mi_col, r, subsize, token_cache);
if (mi_col + hbs < cm->mi_cols)
decode_modes_b(cm, xd, tile, mi_row, mi_col + hbs, r, subsize);
decode_modes_b(cm, xd, tile, mi_row, mi_col + hbs, r, subsize,
token_cache);
break;
case PARTITION_SPLIT:
decode_modes_sb(cm, xd, tile, mi_row, mi_col, r, subsize);
decode_modes_sb(cm, xd, tile, mi_row, mi_col + hbs, r, subsize);
decode_modes_sb(cm, xd, tile, mi_row + hbs, mi_col, r, subsize);
decode_modes_sb(cm, xd, tile, mi_row + hbs, mi_col + hbs, r, subsize);
decode_modes_sb(cm, xd, tile, mi_row, mi_col, r, subsize,
token_cache);
decode_modes_sb(cm, xd, tile, mi_row, mi_col + hbs, r, subsize,
token_cache);
decode_modes_sb(cm, xd, tile, mi_row + hbs, mi_col, r, subsize,
token_cache);
decode_modes_sb(cm, xd, tile, mi_row + hbs, mi_col + hbs, r, subsize,
token_cache);
break;
default:
assert(!"Invalid partition type");
@@ -791,7 +803,8 @@ static void decode_tile(VP9D_COMP *pbi, const TileInfo *const tile,
vp9_zero(xd->left_seg_context);
for (mi_col = tile->mi_col_start; mi_col < tile->mi_col_end;
mi_col += MI_BLOCK_SIZE)
decode_modes_sb(cm, xd, tile, mi_row, mi_col, r, BLOCK_64X64);
decode_modes_sb(cm, xd, tile, mi_row, mi_col, r, BLOCK_64X64,
pbi->token_cache);
if (pbi->do_loopfilter_inline) {
const int lf_start = mi_row - MI_BLOCK_SIZE;
@@ -935,7 +948,7 @@ static const uint8_t *decode_tiles(VP9D_COMP *pbi, const uint8_t *data) {
}
static int tile_worker_hook(void *arg1, void *arg2) {
TileWorkerData *const tile_data = (TileWorkerData*)arg1;
TileWorkerData *tile_data = (TileWorkerData*)arg1;
const TileInfo *const tile = (TileInfo*)arg2;
int mi_row, mi_col;
@@ -944,9 +957,11 @@ static int tile_worker_hook(void *arg1, void *arg2) {
vp9_zero(tile_data->xd.left_context);
vp9_zero(tile_data->xd.left_seg_context);
for (mi_col = tile->mi_col_start; mi_col < tile->mi_col_end;
mi_col += MI_BLOCK_SIZE)
mi_col += MI_BLOCK_SIZE) {
decode_modes_sb(tile_data->cm, &tile_data->xd, tile,
mi_row, mi_col, &tile_data->bit_reader, BLOCK_64X64);
mi_row, mi_col, &tile_data->bit_reader, BLOCK_64X64,
tile_data->token_cache);
}
}
return !tile_data->xd.corrupted;
}

12
vp9/decoder/vp9_detokenize.c
View File

@@ -70,7 +70,6 @@ static const vp9_prob cat6_prob[15] = {
DCT_EOB_MODEL_TOKEN : TWO_TOKEN) : \
token]; \
} \
token_cache[scan[c]] = vp9_pt_energy_class[token]; \
} while (0)
#define WRITE_COEF_CONTINUE(val, token) \
@@ -78,6 +77,7 @@ static const vp9_prob cat6_prob[15] = {
qcoeff_ptr[scan[c]] = vp9_read_and_apply_sign(r, val) * \
dq[c > 0] / (1 + (tx_size == TX_32X32)); \
INCREMENT_COUNT(token); \
token_cache[scan[c]] = vp9_pt_energy_class[token]; \
c++; \
continue; \
}
@@ -91,7 +91,8 @@ static const vp9_prob cat6_prob[15] = {
static int decode_coefs(VP9_COMMON *cm, const MACROBLOCKD *xd,
vp9_reader *r, int block_idx,
PLANE_TYPE type, int seg_eob, int16_t *qcoeff_ptr,
TX_SIZE tx_size, const int16_t *dq, int pt) {
TX_SIZE tx_size, const int16_t *dq, int pt,
uint8_t *token_cache) {
const FRAME_CONTEXT *const fc = &cm->fc;
FRAME_COUNTS *const counts = &cm->counts;
const int ref = is_inter_block(&xd->mi_8x8[0]->mbmi);
@@ -104,7 +105,6 @@ static int decode_coefs(VP9_COMMON *cm, const MACROBLOCKD *xd,
vp9_coeff_count_model *coef_counts = counts->coef[tx_size];
const int16_t *scan, *nb;
const uint8_t *const band_translate = get_band_translate(tx_size);
uint8_t token_cache[1024];
get_scan(xd, tx_size, type, block_idx, &scan, &nb);
while (1) {
@@ -131,6 +131,7 @@ static int decode_coefs(VP9_COMMON *cm, const MACROBLOCKD *xd,
if (!vp9_read(r, prob[ZERO_CONTEXT_NODE])) {
INCREMENT_COUNT(ZERO_TOKEN);
token_cache[scan[c]] = vp9_pt_energy_class[ZERO_TOKEN];
++c;
goto SKIP_START;
}
@@ -212,7 +213,8 @@ static int decode_coefs(VP9_COMMON *cm, const MACROBLOCKD *xd,
int vp9_decode_block_tokens(VP9_COMMON *cm, MACROBLOCKD *xd,
int plane, int block, BLOCK_SIZE plane_bsize,
TX_SIZE tx_size, vp9_reader *r) {
TX_SIZE tx_size, vp9_reader *r,
uint8_t *token_cache) {
struct macroblockd_plane *const pd = &xd->plane[plane];
const int seg_eob = get_tx_eob(&cm->seg, xd->mi_8x8[0]->mbmi.segment_id,
tx_size);
@@ -223,7 +225,7 @@ int vp9_decode_block_tokens(VP9_COMMON *cm, MACROBLOCKD *xd,
eob = decode_coefs(cm, xd, r, block,
pd->plane_type, seg_eob, BLOCK_OFFSET(pd->qcoeff, block),
tx_size, pd->dequant, pt);
tx_size, pd->dequant, pt, token_cache);
set_contexts(xd, pd, plane_bsize, tx_size, eob > 0, aoff, loff);

3
vp9/decoder/vp9_detokenize.h
View File

@@ -17,6 +17,7 @@
int vp9_decode_block_tokens(VP9_COMMON *cm, MACROBLOCKD *xd,
int plane, int block, BLOCK_SIZE plane_bsize,
TX_SIZE tx_size, vp9_reader *r);
TX_SIZE tx_size, vp9_reader *r,
uint8_t *token_cache);
#endif // VP9_DECODER_VP9_DETOKENIZE_H_

2
vp9/decoder/vp9_onyxd_int.h
View File

@@ -49,6 +49,8 @@ typedef struct VP9Decompressor {
ENTROPY_CONTEXT *above_context[MAX_MB_PLANE];
PARTITION_CONTEXT *above_seg_context;
DECLARE_ALIGNED(16, unsigned char, token_cache[1024]);
} VP9D_COMP;
#endif // VP9_DECODER_VP9_ONYXD_INT_H_