Destroy encoders that fail to InitEncode.

webrtc/modules/video_coding/codecs/vp8/simulcast_encoder_adapter.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 200 matching lines @@
     stream_codec.VP8()->tl_factory = &tl_factory_adapter;
 
     // TODO(ronghuawu): Remove once this is handled in VP8EncoderImpl.
     if (stream_codec.qpMax < kDefaultMinQp) {
       stream_codec.qpMax = kDefaultMaxQp;
     }
 
     VideoEncoder* encoder = factory_->Create();
     ret = encoder->InitEncode(&stream_codec, number_of_cores, max_payload_size);
     if (ret < 0) {
+      // Explicitly destroy the current encoder; because we haven't registered a
+      // StreamInfo for it yet, Release won't do anything about it.
+      factory_->Destroy(encoder);
       Release();
       return ret;
     }
     EncodedImageCallback* callback = new AdapterEncodedImageCallback(this, i);
     encoder->RegisterEncodeCompleteCallback(callback);
     streaminfos_.push_back(StreamInfo(encoder, callback, stream_codec.width,
                                       stream_codec.height,
                                       start_bitrate_kbps > 0));
     if (i != 0)
       implementation_name += ", ";
@@ skipping 236 matching lines @@
   if (NumberOfStreams(codec_) != 1)
     return VideoEncoder::ScalingSettings(false);
   return streaminfos_[0].encoder->GetScalingSettings();
 }
 
 const char* SimulcastEncoderAdapter::ImplementationName() const {
   return implementation_name_.c_str();
 }
 
 }  // namespace webrtc