Cast: Use 2 threads for encoding on capable systems

media/cast/cast_config.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "media/cast/cast_config.h"
 
 namespace media {
 namespace cast {
 
 // TODO(miu): Revisit code factoring of these structs.  There are a number of
@@ skipping 20 matching lines @@
       height(0),
       congestion_control_back_off(kDefaultCongestionControlBackOff),
       max_bitrate(5000000),
       min_bitrate(1000000),
       start_bitrate(5000000),
       max_qp(kDefaultMaxQp),
       min_qp(kDefaultMinQp),
       max_frame_rate(kDefaultMaxFrameRate),
       max_number_of_video_buffers_used(kDefaultNumberOfVideoBuffers),
       codec(transport::kVp8),
-      number_of_cores(0) {}
+      number_of_encode_threads(1) {}
 
 AudioSenderConfig::AudioSenderConfig()
     : sender_ssrc(0),
       incoming_feedback_ssrc(0),
       rtcp_interval(kDefaultRtcpIntervalMs),
       rtcp_mode(kRtcpReducedSize),
       use_external_encoder(false),
       frequency(0),
       channels(0),
       bitrate(0) {}
@@ skipping 16 matching lines @@
       rtcp_mode(kRtcpReducedSize),
       rtp_max_delay_ms(kDefaultRtpMaxDelayMs),
       rtp_payload_type(0),
       use_external_decoder(false),
       max_frame_rate(kDefaultMaxFrameRate),
       decoder_faster_than_max_frame_rate(true),
       codec(transport::kVp8) {}
 
 }  // namespace cast
 }  // namespace media