diff --git a/vp9/common/vp9_blockd.h b/vp9/common/vp9_blockd.h
index 32311796d947581871b6a2461d5cc406412ee3f3..7dbc252271ba2a1e9bf1e19295dccdab55e5bc7a 100644
--- a/vp9/common/vp9_blockd.h
+++ b/vp9/common/vp9_blockd.h
@@ -226,6 +226,9 @@ typedef struct macroblockd {
unsigned char ab_index; // index of 4x4 block inside the 8x8 block
int q_index;
+
+ PARTITION_CONTEXT *above_seg_context;
+ PARTITION_CONTEXT left_seg_context[8];
} MACROBLOCKD;
diff --git a/vp9/decoder/vp9_decodframe.c b/vp9/decoder/vp9_decodframe.c
index d50a1c2337dd2533c1e61a7da827ba401391e00c..382f992066830baf2bbb716b26ed69992894d7b0 100644
--- a/vp9/decoder/vp9_decodframe.c
+++ b/vp9/decoder/vp9_decodframe.c
@@ -214,6 +214,13 @@ static void alloc_tile_storage(VP9D_COMP *pbi, int tile_cols) {
pbi->mi_streams[tile_col] =
&cm->mi[cm->mi_rows * cm->cur_tile_mi_col_start];
}
+
+ // This is sized based on the entire frame. Each tile operates within its
+ // column bounds.
+ CHECK_MEM_ERROR(cm, pbi->above_seg_context,
+ vpx_realloc(pbi->above_seg_context,
+ sizeof(*pbi->above_seg_context) *
+ mi_cols_aligned_to_sb(cm->mi_cols)));
}
static void decode_block(int plane, int block, BLOCK_SIZE plane_bsize,
@@ -404,6 +411,7 @@ static void decode_modes_b(VP9D_COMP *pbi, int mi_row, int mi_col,
static void decode_modes_sb(VP9D_COMP *pbi, int mi_row, int mi_col,
vp9_reader* r, BLOCK_SIZE bsize, int index) {
VP9_COMMON *const cm = &pbi->common;
+ MACROBLOCKD *const xd = &pbi->mb;
const int hbs = num_8x8_blocks_wide_lookup[bsize] / 2;
PARTITION_TYPE partition = PARTITION_NONE;
BLOCK_SIZE subsize;
@@ -418,7 +426,7 @@ static void decode_modes_sb(VP9D_COMP *pbi, int mi_row, int mi_col,
int pl;
const int idx = check_bsize_coverage(hbs, cm->mi_rows, cm->mi_cols,
mi_row, mi_col);
- pl = partition_plane_context(cm->above_seg_context, cm->left_seg_context,
+ pl = partition_plane_context(xd->above_seg_context, xd->left_seg_context,
mi_row, mi_col, bsize);
if (idx == 0)
@@ -465,7 +473,7 @@ static void decode_modes_sb(VP9D_COMP *pbi, int mi_row, int mi_col,
// update partition context
if (bsize >= BLOCK_8X8 &&
(bsize == BLOCK_8X8 || partition != PARTITION_SPLIT))
- update_partition_context(cm->above_seg_context, cm->left_seg_context,
+ update_partition_context(xd->above_seg_context, xd->left_seg_context,
mi_row, mi_col, subsize, bsize);
}
@@ -709,15 +717,20 @@ static void setup_frame_size_with_refs(VP9D_COMP *pbi,
setup_display_size(cm, rb);
}
-static void decode_tile(VP9D_COMP *pbi, vp9_reader *r, int tile_col) {
+static void setup_tile_context(VP9D_COMP *const pbi, MACROBLOCKD *const xd,
+ int tile_col) {
+ xd->mi_stream = pbi->mi_streams[tile_col];
+ // see note in alloc_tile_storage().
+ xd->above_seg_context = pbi->above_seg_context;
+}
+
+static void decode_tile(VP9D_COMP *pbi, vp9_reader *r) {
const int num_threads = pbi->oxcf.max_threads;
VP9_COMMON *const cm = &pbi->common;
int mi_row, mi_col;
YV12_BUFFER_CONFIG *const fb = &cm->yv12_fb[cm->new_fb_idx];
MACROBLOCKD *xd = &pbi->mb;
- xd->mi_stream = pbi->mi_streams[tile_col];
-
if (pbi->do_loopfilter_inline) {
LFWorkerData *const lf_data = (LFWorkerData*)pbi->lf_worker.data1;
lf_data->frame_buffer = fb;
@@ -732,7 +745,7 @@ static void decode_tile(VP9D_COMP *pbi, vp9_reader *r, int tile_col) {
mi_row += MI_BLOCK_SIZE) {
// For a SB there are 2 left contexts, each pertaining to a MB row within
vp9_zero(cm->left_context);
- vp9_zero(cm->left_seg_context);
+ vp9_zero(xd->left_seg_context);
for (mi_col = cm->cur_tile_mi_col_start; mi_col < cm->cur_tile_mi_col_end;
mi_col += MI_BLOCK_SIZE)
decode_modes_sb(pbi, mi_row, mi_col, r, BLOCK_64X64, 0);
@@ -788,6 +801,7 @@ static const uint8_t *decode_tiles(VP9D_COMP *pbi, const uint8_t *data) {
vp9_reader residual_bc;
VP9_COMMON *const cm = &pbi->common;
+ MACROBLOCKD *const xd = &pbi->mb;
const uint8_t *const data_end = pbi->source + pbi->source_sz;
const int aligned_mi_cols = mi_cols_aligned_to_sb(cm->mi_cols);
@@ -800,8 +814,8 @@ static const uint8_t *decode_tiles(VP9D_COMP *pbi, const uint8_t *data) {
vpx_memset(cm->above_context[0], 0,
sizeof(ENTROPY_CONTEXT) * MAX_MB_PLANE * (2 * aligned_mi_cols));
- vpx_memset(cm->above_seg_context, 0,
- sizeof(PARTITION_CONTEXT) * aligned_mi_cols);
+ vpx_memset(pbi->above_seg_context, 0,
+ sizeof(*pbi->above_seg_context) * aligned_mi_cols);
if (pbi->oxcf.inv_tile_order) {
const uint8_t *data_ptr2[4][1 << 6];
@@ -831,7 +845,8 @@ static const uint8_t *decode_tiles(VP9D_COMP *pbi, const uint8_t *data) {
setup_token_decoder(data_ptr2[tile_row][tile_col], data_end,
data_end - data_ptr2[tile_row][tile_col],
&cm->error, &residual_bc);
- decode_tile(pbi, &residual_bc, tile_col);
+ setup_tile_context(pbi, xd, tile_col);
+ decode_tile(pbi, &residual_bc);
if (tile_row == tile_rows - 1 && tile_col == tile_cols - 1)
bc_bak = residual_bc;
}
@@ -860,7 +875,8 @@ static const uint8_t *decode_tiles(VP9D_COMP *pbi, const uint8_t *data) {
}
setup_token_decoder(data, data_end, size, &cm->error, &residual_bc);
- decode_tile(pbi, &residual_bc, tile_col);
+ setup_tile_context(pbi, xd, tile_col);
+ decode_tile(pbi, &residual_bc);
data += size;
}
}
diff --git a/vp9/decoder/vp9_onyxd_if.c b/vp9/decoder/vp9_onyxd_if.c
index ae4e07edd1f2580e380f4faee25dcda3a2fb9246..95487355595d6eb7a83506fdcfc150cfd8c64554 100644
--- a/vp9/decoder/vp9_onyxd_if.c
+++ b/vp9/decoder/vp9_onyxd_if.c
@@ -163,6 +163,7 @@ void vp9_remove_decompressor(VP9D_PTR ptr) {
vp9_worker_end(&pbi->lf_worker);
vpx_free(pbi->lf_worker.data1);
vpx_free(pbi->mi_streams);
+ vpx_free(pbi->above_seg_context);
vpx_free(pbi);
}
diff --git a/vp9/decoder/vp9_onyxd_int.h b/vp9/decoder/vp9_onyxd_int.h
index 68b30347e67301f9e9941350af7137753b7e58a9..3f00cd39f412f9c325c65df8013b2688bfaf2729 100644
--- a/vp9/decoder/vp9_onyxd_int.h
+++ b/vp9/decoder/vp9_onyxd_int.h
@@ -43,6 +43,8 @@ typedef struct VP9Decompressor {
/* Each tile column has its own MODE_INFO stream. This array indexes them by
tile column index. */
MODE_INFO **mi_streams;
+
+ PARTITION_CONTEXT *above_seg_context;
} VP9D_COMP;
#endif // VP9_DECODER_VP9_ONYXD_INT_H_