MediaLog: Log selected audio/video decoder name.

media/filters/ffmpeg_video_decoder.cc

 // Copyright (c) 2012 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/filters/ffmpeg_video_decoder.h"
 
 #include <algorithm>
 #include <string>
 
 #include "base/bind.h"
@@ skipping 131 matching lines @@
   video_frame.swap(reinterpret_cast<VideoFrame**>(&opaque));
   frame->buf[0] =
       av_buffer_create(frame->data[0],
                        VideoFrame::AllocationSize(format, coded_size),
                        ReleaseVideoBufferImpl,
                        opaque,
                        0);
   return 0;
 }
 
+std::string FFmpegVideoDecoder::GetDisplayName() const {
+  return "FFmpegVideoDecoder";
+}
+
 void FFmpegVideoDecoder::Initialize(const VideoDecoderConfig& config,
                                     bool low_delay,
                                     const PipelineStatusCB& status_cb,
                                     const OutputCB& output_cb) {
   DCHECK(task_runner_->BelongsToCurrentThread());
   DCHECK(!config.is_encrypted());
   DCHECK(!output_cb.is_null());
 
   FFmpegGlue::InitializeFFmpeg();
 
@@ skipping 179 matching lines @@
   if (!codec || avcodec_open2(codec_context_.get(), codec, NULL) < 0) {
     ReleaseFFmpegResources();
     return false;
   }
 
   av_frame_.reset(av_frame_alloc());
   return true;
 }
 
 }  // namespace media