Expose codec implementation names in stats.

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 793 matching lines @@
 int VP9EncoderImpl::SetChannelParameters(uint32_t packet_loss, int64_t rtt) {
   return WEBRTC_VIDEO_CODEC_OK;
 }
 
 int VP9EncoderImpl::RegisterEncodeCompleteCallback(
     EncodedImageCallback* callback) {
   encoded_complete_callback_ = callback;
   return WEBRTC_VIDEO_CODEC_OK;
 }
 
+const char* VP9EncoderImpl::ImplementationName() const {
+  return "libvpx";
+}
+
 VP9Decoder* VP9Decoder::Create() {
   return new VP9DecoderImpl();
 }
 
 VP9DecoderImpl::VP9DecoderImpl()
     : decode_complete_callback_(NULL),
       inited_(false),
       decoder_(NULL),
       key_frame_required_(true) {
   memset(&codec_, 0, sizeof(codec_));
@@ skipping 153 matching lines @@
     delete decoder_;
     decoder_ = NULL;
   }
   // Releases buffers from the pool. Any buffers not in use are deleted. Buffers
   // still referenced externally are deleted once fully released, not returning
   // to the pool.
   frame_buffer_pool_.ClearPool();
   inited_ = false;
   return WEBRTC_VIDEO_CODEC_OK;
 }
+
+const char* VP9DecoderImpl::ImplementationName() const {
+  return "libvpx";
+}
+
 }  // namespace webrtc