libvpx: Pull from upstream

source/libvpx/vp9/vp9_dx_iface.c

 /*
  *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 260 matching lines @@
 
 static void init_buffer_callbacks(vpx_codec_alg_priv_t *ctx) {
   int i;
 
   for (i = 0; i < ctx->num_frame_workers; ++i) {
     VP9Worker *const worker = &ctx->frame_workers[i];
     FrameWorkerData *const frame_worker_data = (FrameWorkerData *)worker->data1;
     VP9_COMMON *const cm = &frame_worker_data->pbi->common;
     BufferPool *const pool = cm->buffer_pool;
 
-    cm->new_fb_idx = -1;
+    cm->new_fb_idx = INVALID_IDX;
     cm->byte_alignment = ctx->byte_alignment;
 
     if (ctx->get_ext_fb_cb != NULL && ctx->release_ext_fb_cb != NULL) {
       pool->get_fb_cb = ctx->get_ext_fb_cb;
       pool->release_fb_cb = ctx->release_ext_fb_cb;
       pool->cb_priv = ctx->ext_priv;
     } else {
       pool->get_fb_cb = vp9_get_frame_buffer;
       pool->release_fb_cb = vp9_release_frame_buffer;
 
@@ skipping 201 matching lines @@
     winterface->execute(worker);
 
     // Update data pointer after decode.
     *data = frame_worker_data->data_end;
 
     if (worker->had_error)
       return update_error_state(ctx, &frame_worker_data->pbi->common.error);
 
     check_resync(ctx, frame_worker_data->pbi);
   } else {
-    const VP9WorkerInterface *const winterface = vp9_get_worker_interface();
     VP9Worker *const worker = &ctx->frame_workers[ctx->next_submit_worker_id];
     FrameWorkerData *const frame_worker_data = (FrameWorkerData *)worker->data1;
     // Copy context from last worker thread to next worker thread.
     if (ctx->next_submit_worker_id != ctx->last_submit_worker_id)
       vp9_frameworker_copy_context(
           &ctx->frame_workers[ctx->next_submit_worker_id],
           &ctx->frame_workers[ctx->last_submit_worker_id]);
 
     frame_worker_data->pbi->ready_for_new_data = 0;
     // Copy the compressed data into worker's internal buffer.
@@ skipping 589 matching lines @@
     0,
     NULL,  // vpx_codec_enc_cfg_map_t
     NULL,  // vpx_codec_encode_fn_t
     NULL,  // vpx_codec_get_cx_data_fn_t
     NULL,  // vpx_codec_enc_config_set_fn_t
     NULL,  // vpx_codec_get_global_headers_fn_t
     NULL,  // vpx_codec_get_preview_frame_fn_t
     NULL   // vpx_codec_enc_mr_get_mem_loc_fn_t
   }
 };