[Chromecast] Add a custom CastMediaClient for Chromecast

chromecast/public/media/media_capabilities_shlib.h

+// Copyright 2016 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_MEDIA_CAPABILITIES_SHLIB_H_
+#define CHROMECAST_PUBLIC_MEDIA_MEDIA_CAPABILITIES_SHLIB_H_
+
+#include "chromecast_export.h"
+#include "decoder_config.h"
+
+namespace chromecast {
+namespace media {
+
+// Interface for specifying platform media capabilities. It allows for more
+// detailed information to be provided by the platform compared to the previous
+// MediaCodecSupportShlib interface.
+class CHROMECAST_EXPORT MediaCapabilitiesShlib {
+ public:
+  // Return true if the current platform supports the given combination of video
+  // codec, profile and level. For a list of supported codecs and profiles see
+  // decoder_config.h. The level value is codec specific. For H.264 and HEVC the
+  // level value corresponds to level_idc defined in the H.264 / HEVC standard.

[gfhuang, 2016/07/28 00:38:07]

Is this new API intend to deprecate the other old API?

[servolk, 2016/07/28 00:49:20]

Yes, eventually. But for now we will support both for backward compatibility,
and also due to the fact that this new API is only for video and doesn't handle
cases of multi-channel audio formats. The new API is better aligned with what
upstream media folks want and also makes it easier to express more fine-grained
platform capabilities via profile/level combination.

+  static bool IsSupportedVideoConfig(VideoCodec codec,
+                                     VideoProfile profile,
+                                     int level) __attribute__((__weak__));
+};
+
+}  // namespace media
+}  // namespace chromecast
+
+#endif  // CHROMECAST_PUBLIC_MEDIA_MEDIA_CAPABILITIES_SHLIB_H_