Introduce Dolby Vision video codec and Demuxer support

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 <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 41 matching lines @@
   std::string threads(cmd_line->GetSwitchValueASCII(switches::kVideoThreads));
   if (threads.empty() || !base::StringToInt(threads, &decode_threads)) {
     // Some ffmpeg codecs don't actually benefit from using more threads.
     // Only add more threads for those codecs that we know will benefit.
     switch (config.codec()) {
       case kUnknownVideoCodec:
       case kCodecVC1:
       case kCodecMPEG2:
       case kCodecHEVC:
       case kCodecVP9:
+      case kCodecDolbyVision:
         // We do not compile ffmpeg with support for any of these codecs.
         break;
 
       case kCodecTheora:
         // No extra threads for these codecs.
         break;
 
       case kCodecH264:
       case kCodecMPEG4:
       case kCodecVP8:
@@ skipping 355 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