| // 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_CAST_MEDIA_SHLIB_H_ |
| #define CHROMECAST_PUBLIC_CAST_MEDIA_SHLIB_H_ |
| |
| #include <string> |
| #include <vector> |
| |
| #include "chromecast_export.h" |
| |
| namespace chromecast { |
| namespace media { |
| |
| class VideoPlane; |
| |
| // Provides access to platform-specific media systems and hardware resources. |
| // In cast_shell, all usage is from the browser process. An implementation is |
| // assumed to be in an uninitialized state initially. When uninitialized, no |
| // API calls will be made except for Initialize, which brings the implementation |
| // into an initialized state. A call to Finalize returns the implementation to |
| // its uninitialized state. The implementation must support multiple |
| // transitions between these states, to support resource grant/revoke events and |
| // also to allow multiple unit tests to bring up the media systems in isolation |
| // from other tests. |
| class CHROMECAST_EXPORT CastMediaShlib { |
| public: |
| // Initializes platform-specific media systems. Only called when in an |
| // uninitialized state. |
| static void Initialize(const std::vector<std::string>& argv); |
| |
| // Tears down platform-specific media systems and returns to the uninitialized |
| // state. The implementation must release all media-related hardware |
| // resources. |
| static void Finalize(); |
| |
| // Gets the VideoPlane instance for managing the hardware video plane. |
| // While an implementation is in an initialized state, this function may be |
| // called at any time. The VideoPlane object must be destroyed in Finalize. |
| static VideoPlane* GetVideoPlane(); |
| }; |
| |
| } // namespace media |
| } // namespace chromecast |
| |
| #endif // CHROMECAST_PUBLIC_CAST_MEDIA_SHLIB_H_ |