[Chromecast] Add a custom CastMediaClient for Chromecast

chromecast/public/media_codec_support_shlib.h

 // Copyright 2015 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.
 
 #ifndef CHROMECAST_PUBLIC_MEDIA_CODEC_SUPPORT_SHLIB_H_
 #define CHROMECAST_PUBLIC_MEDIA_CODEC_SUPPORT_SHLIB_H_
 
 #include <string>
 
 #include "chromecast_export.h"
+#include "media/decoder_config.h"
 
 namespace chromecast {
 namespace media {
 
 // Provides information on which codecs are supported by a platform.
 // Note: these queries are made only in the renderer process.
 class CHROMECAST_EXPORT MediaCodecSupportShlib {
  public:
   // Possible values for 'is codec supported' query
   enum CodecSupport {
     // Codec is definitely supported on this platform.
     kSupported,
     // Codec is definitely not supported on this platform.
     kNotSupported,
     // No platform-specific constraints on codec's support.
     // Support is determined by cast_shell default behaviour (which
     // may include taking current HDMI-out capabilities into account).
     kDefault
   };
 
   // Returns whether or not the given codec (passed in as a string
   // representation of the codec id conforming to RFC 6381) is supported.
   static CodecSupport IsSupported(const std::string& codec);
 };
 

[gfhuang, 2016/07/27 20:13:58]

add comments about what this API is doing
(what's the relationship with MediaCodecSupportShlib::IsSupported() ?)

and how OEMs supposes to implement this API.

[servolk, 2016/07/27 22:39:36]

Done.

+class CHROMECAST_EXPORT MediaCapabilitiesShlib {
+ public:
+  static bool IsSupportedVideoConfig(VideoCodec codec,
+                                     VideoProfile profile,
+                                     int level) __attribute__((__weak__));
+};
+
 }  // namespace media
 }  // namespace chromecast
 
 #endif  // CHROMECAST_PUBLIC_MEDIA_CODEC_SUPPORT_SHLIB_H_