Turn off error resilience for VP9 if no spatial or temporal layers are configured and NACK is enabl…

webrtc/modules/video_coding/codecs/vp9/vp9_impl.cc

 /*
  *  Copyright (c) 2014 The WebRTC 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 280 matching lines @@
   // (actual memory is not allocated).
   raw_ = vpx_img_wrap(NULL, VPX_IMG_FMT_I420, codec_.width, codec_.height, 1,
                       NULL);
   // Populate encoder configuration with default values.
   if (vpx_codec_enc_config_default(vpx_codec_vp9_cx(), config_, 0)) {
     return WEBRTC_VIDEO_CODEC_ERROR;
   }
   config_->g_w = codec_.width;
   config_->g_h = codec_.height;
   config_->rc_target_bitrate = inst->startBitrate;  // in kbit/s
-  config_->g_error_resilient = 1;
+  config_->g_error_resilient = inst->VP9().resilienceOn ? 1 : 0;
   // Setting the time base of the codec.
   config_->g_timebase.num = 1;
   config_->g_timebase.den = 90000;
   config_->g_lag_in_frames = 0;  // 0- no frame lagging
   config_->g_threads = 1;
   // Rate control settings.
   config_->rc_dropframe_thresh = inst->VP9().frameDroppingOn ? 30 : 0;
   config_->rc_end_usage = VPX_CBR;
   config_->g_pass = VPX_RC_ONE_PASS;
   config_->rc_min_quantizer = 2;
@@ skipping 687 matching lines @@
   frame_buffer_pool_.ClearPool();
   inited_ = false;
   return WEBRTC_VIDEO_CODEC_OK;
 }
 
 const char* VP9DecoderImpl::ImplementationName() const {
   return "libvpx";
 }
 
 }  // namespace webrtc