vp10: remove duplicate frame_parallel_decode field.

Keep the one in VP10_COMMON in favour of the one in VP10_DECODER.

Change-Id: Ia81983ccc95d83829dc815e28d9b1143e16e27b1
diff --git a/vp10/common/onyxc_int.h b/vp10/common/onyxc_int.h
index a30cc61..303a154 100644
--- a/vp10/common/onyxc_int.h
+++ b/vp10/common/onyxc_int.h
@@ -233,8 +233,6 @@
   struct loopfilter lf;
   struct segmentation seg;
 
-  // TODO(hkuang): Remove this as it is the same as frame_parallel_decode
-  // in pbi.
   int frame_parallel_decode;  // frame-based threading.
 
   // Context probabilities for reference frame prediction
diff --git a/vp10/decoder/decodeframe.c b/vp10/decoder/decodeframe.c
index 2c308d0..16706ee 100644
--- a/vp10/decoder/decodeframe.c
+++ b/vp10/decoder/decodeframe.c
@@ -527,6 +527,7 @@
                                        struct buf_2d *dst_buf, const MV* mv,
                                        RefCntBuffer *ref_frame_buf,
                                        int is_scaled, int ref) {
+  VP10_COMMON *const cm = &pbi->common;
   struct macroblockd_plane *const pd = &xd->plane[plane];
   uint8_t *const dst = dst_buf->buf + dst_buf->stride * y + x;
   MV32 scaled_mv;
@@ -623,7 +624,7 @@
 
     // Wait until reference block is ready. Pad 7 more pixels as last 7
     // pixels of each superblock row can be changed by next superblock row.
-    if (pbi->frame_parallel_decode)
+    if (cm->frame_parallel_decode)
       vp10_frameworker_wait(pbi->frame_worker_owner, ref_frame_buf,
                             VPXMAX(0, (y1 + 7)) << (plane == 0 ? 0 : 1));
 
@@ -650,7 +651,7 @@
   } else {
     // Wait until reference block is ready. Pad 7 more pixels as last 7
     // pixels of each superblock row can be changed by next superblock row.
-     if (pbi->frame_parallel_decode) {
+     if (cm->frame_parallel_decode) {
        const int y1 = (y0_16 + (h - 1) * ys) >> SUBPEL_BITS;
        vp10_frameworker_wait(pbi->frame_worker_owner, ref_frame_buf,
                              VPXMAX(0, (y1 + 7)) << (plane == 0 ? 0 : 1));
@@ -1509,7 +1510,7 @@
       // After loopfiltering, the last 7 row pixels in each superblock row may
       // still be changed by the longest loopfilter of the next superblock
       // row.
-      if (pbi->frame_parallel_decode)
+      if (cm->frame_parallel_decode)
         vp10_frameworker_broadcast(pbi->cur_buf,
                                   mi_row << MI_BLOCK_SIZE_LOG2);
     }
@@ -1527,7 +1528,7 @@
   // Get last tile data.
   tile_data = pbi->tile_data + tile_cols * tile_rows - 1;
 
-  if (pbi->frame_parallel_decode)
+  if (cm->frame_parallel_decode)
     vp10_frameworker_broadcast(pbi->cur_buf, INT_MAX);
   return vpx_reader_find_end(&tile_data->bit_reader);
 }
@@ -1817,7 +1818,7 @@
     cm->lf.filter_level = 0;
     cm->show_frame = 1;
 
-    if (pbi->frame_parallel_decode) {
+    if (cm->frame_parallel_decode) {
       for (i = 0; i < REF_FRAMES; ++i)
         cm->next_ref_frame_map[i] = cm->ref_frame_map[i];
     }
@@ -2186,7 +2187,7 @@
 
   // If encoded in frame parallel mode, frame context is ready after decoding
   // the frame header.
-  if (pbi->frame_parallel_decode && cm->frame_parallel_decoding_mode) {
+  if (cm->frame_parallel_decode && cm->frame_parallel_decoding_mode) {
     VPxWorker *const worker = pbi->frame_worker_owner;
     FrameWorkerData *const frame_worker_data = worker->data1;
     if (cm->refresh_frame_context) {
diff --git a/vp10/decoder/decoder.c b/vp10/decoder/decoder.c
index 9a59483..81bd357 100644
--- a/vp10/decoder/decoder.c
+++ b/vp10/decoder/decoder.c
@@ -258,7 +258,7 @@
   pbi->hold_ref_buf = 0;
   cm->frame_to_show = get_frame_new_buffer(cm);
 
-  if (!pbi->frame_parallel_decode || !cm->show_frame) {
+  if (!cm->frame_parallel_decode || !cm->show_frame) {
     lock_buffer_pool(pool);
     --frame_bufs[cm->new_fb_idx].ref_count;
     unlock_buffer_pool(pool);
@@ -297,7 +297,7 @@
 
   // Check if the previous frame was a frame without any references to it.
   // Release frame buffer if not decoding in frame parallel mode.
-  if (!pbi->frame_parallel_decode && cm->new_fb_idx >= 0
+  if (!cm->frame_parallel_decode && cm->new_fb_idx >= 0
       && frame_bufs[cm->new_fb_idx].ref_count == 0)
     pool->release_fb_cb(pool->cb_priv,
                         &frame_bufs[cm->new_fb_idx].raw_frame_buffer);
@@ -310,7 +310,7 @@
   cm->cur_frame = &pool->frame_bufs[cm->new_fb_idx];
 
   pbi->hold_ref_buf = 0;
-  if (pbi->frame_parallel_decode) {
+  if (cm->frame_parallel_decode) {
     VPxWorker *const worker = pbi->frame_worker_owner;
     vp10_frameworker_lock_stats(worker);
     frame_bufs[cm->new_fb_idx].frame_worker_owner = worker;
@@ -379,12 +379,12 @@
   if (!cm->show_existing_frame) {
     cm->last_show_frame = cm->show_frame;
     cm->prev_frame = cm->cur_frame;
-    if (cm->seg.enabled && !pbi->frame_parallel_decode)
+    if (cm->seg.enabled && !cm->frame_parallel_decode)
       vp10_swap_current_and_last_seg_map(cm);
   }
 
   // Update progress in frame parallel decode.
-  if (pbi->frame_parallel_decode) {
+  if (cm->frame_parallel_decode) {
     // Need to lock the mutex here as another thread may
     // be accessing this buffer.
     VPxWorker *const worker = pbi->frame_worker_owner;
diff --git a/vp10/decoder/decoder.h b/vp10/decoder/decoder.h
index 873fbb9..67ab069 100644
--- a/vp10/decoder/decoder.h
+++ b/vp10/decoder/decoder.h
@@ -55,8 +55,6 @@
 
   int refresh_frame_flags;
 
-  int frame_parallel_decode;  // frame-based threading.
-
   // TODO(hkuang): Combine this with cur_buf in macroblockd as they are
   // the same.
   RefCntBuffer *cur_buf;   //  Current decoding frame buffer.
diff --git a/vp10/vp10_dx_iface.c b/vp10/vp10_dx_iface.c
index c6e1874..e2feca7 100644
--- a/vp10/vp10_dx_iface.c
+++ b/vp10/vp10_dx_iface.c
@@ -332,7 +332,7 @@
                                   &data);
   frame_worker_data->data_end = data;
 
-  if (frame_worker_data->pbi->frame_parallel_decode) {
+  if (frame_worker_data->pbi->common.frame_parallel_decode) {
     // In frame parallel decoding, a worker thread must successfully decode all
     // the compressed data.
     if (frame_worker_data->result != 0 ||
@@ -433,7 +433,6 @@
         (ctx->frame_parallel_decode == 0) ? ctx->cfg.threads : 0;
 
     frame_worker_data->pbi->inv_tile_order = ctx->invert_tile_order;
-    frame_worker_data->pbi->frame_parallel_decode = ctx->frame_parallel_decode;
     frame_worker_data->pbi->common.frame_parallel_decode =
         ctx->frame_parallel_decode;
     worker->hook = (VPxWorkerHook)frame_worker_hook;