libvpx: Pull from upstream

source/libvpx/examples/vpx_temporal_svc_encoder.c

 /*
  *  Copyright (c) 2012 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 592 matching lines @@
   cfg.rc_min_quantizer = 2;
   cfg.rc_max_quantizer = 56;
   if (strncmp(encoder->name, "vp9", 3) == 0)
     cfg.rc_max_quantizer = 52;
   cfg.rc_undershoot_pct = 50;
   cfg.rc_overshoot_pct = 50;
   cfg.rc_buf_initial_sz = 500;
   cfg.rc_buf_optimal_sz = 600;
   cfg.rc_buf_sz = 1000;
 
+  // Use 1 thread as default.
+  cfg.g_threads = 1;
+
   // Enable error resilient mode.
   cfg.g_error_resilient = 1;
   cfg.g_lag_in_frames   = 0;
   cfg.kf_mode = VPX_KF_AUTO;
 
   // Disable automatic keyframe placement.
   cfg.kf_min_dist = cfg.kf_max_dist = 3000;
 
   set_temporal_layer_pattern(layering_mode,
                              &cfg,
@@ skipping 45 matching lines @@
   if (strncmp(encoder->name, "vp8", 3) == 0) {
     vpx_codec_control(&codec, VP8E_SET_CPUUSED, -speed);
     vpx_codec_control(&codec, VP8E_SET_NOISE_SENSITIVITY, kDenoiserOnYOnly);
     vpx_codec_control(&codec, VP8E_SET_STATIC_THRESHOLD, 1);
   } else if (strncmp(encoder->name, "vp9", 3) == 0) {
       vpx_codec_control(&codec, VP8E_SET_CPUUSED, speed);
       vpx_codec_control(&codec, VP9E_SET_AQ_MODE, 3);
       vpx_codec_control(&codec, VP9E_SET_FRAME_PERIODIC_BOOST, 0);
       vpx_codec_control(&codec, VP9E_SET_NOISE_SENSITIVITY, 0);
       vpx_codec_control(&codec, VP8E_SET_STATIC_THRESHOLD, 0);
+      vpx_codec_control(&codec, VP9E_SET_TILE_COLUMNS, (cfg.g_threads >> 1));
       if (vpx_codec_control(&codec, VP9E_SET_SVC, layering_mode > 0 ? 1: 0)) {
         die_codec(&codec, "Failed to set SVC");
     }
   }
   if (strncmp(encoder->name, "vp8", 3) == 0) {
     vpx_codec_control(&codec, VP8E_SET_SCREEN_CONTENT_MODE, 0);
   }
   vpx_codec_control(&codec, VP8E_SET_TOKEN_PARTITIONS, 1);
   // This controls the maximum target size of the key frame.
   // For generating smaller key frames, use a smaller max_intra_size_pct
@@ skipping 101 matching lines @@
   if (vpx_codec_destroy(&codec))
     die_codec(&codec, "Failed to destroy codec");
 
   // Try to rewrite the output file headers with the actual frame count.
   for (i = 0; i < cfg.ts_number_layers; ++i)
     vpx_video_writer_close(outfile[i]);
 
   vpx_img_free(&raw);
   return EXIT_SUCCESS;
 }