| // Copyright 2019 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 CAST_STANDALONE_RECEIVER_SDL_VIDEO_PLAYER_H_ |
| #define CAST_STANDALONE_RECEIVER_SDL_VIDEO_PLAYER_H_ |
| |
| #include <string> |
| |
| #include "cast/standalone_receiver/sdl_player_base.h" |
| #include "cast/streaming/constants.h" |
| |
| namespace openscreen { |
| namespace cast { |
| |
| // Consumes frames from a Receiver, decodes them, and renders them to a |
| // SDL_Renderer. |
| class SDLVideoPlayer final : public SDLPlayerBase { |
| public: |
| // |error_callback| is run only if a fatal error occurs, at which point the |
| // player has halted and set |error_status()|. |
| SDLVideoPlayer(ClockNowFunctionPtr now_function, |
| TaskRunner* task_runner, |
| Receiver* receiver, |
| VideoCodec codec_name, |
| SDL_Renderer* renderer, |
| std::function<void()> error_callback); |
| |
| ~SDLVideoPlayer() final; |
| |
| private: |
| // Renders the "blue splash" (if waiting) or "red splash" (on error), or |
| // otherwise re-renders |frame|; scheduling presentation at an "idle FPS" |
| // rate. |
| bool RenderWhileIdle(const SDLPlayerBase::PresentableFrame* frame) final; |
| |
| // Uploads the decoded picture in |frame| to a SDL texture and draws it using |
| // the SDL |renderer_|. |
| ErrorOr<Clock::time_point> RenderNextFrame( |
| const SDLPlayerBase::PresentableFrame& frame) final; |
| |
| // Makes whatever is currently drawn to the SDL |renderer_| be presented |
| // on-screen. |
| void Present() final; |
| |
| // Maps an AVFrame format enum to the SDL equivalent. |
| static uint32_t GetSDLPixelFormat(const AVFrame& picture); |
| |
| // The SDL renderer drawn to. |
| SDL_Renderer* const renderer_; |
| |
| // The SDL texture to which the current frame's image is uploaded for |
| // accelerated 2D rendering. |
| SDLTextureUniquePtr texture_; |
| }; |
| |
| } // namespace cast |
| } // namespace openscreen |
| |
| #endif // CAST_STANDALONE_RECEIVER_SDL_VIDEO_PLAYER_H_ |