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