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/*
* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef WEBRTC_MODULES_VIDEO_RENDER_MAIN_SOURCE_VIDEO_RENDER_FRAMES_H_ // NOLINT
#define WEBRTC_MODULES_VIDEO_RENDER_MAIN_SOURCE_VIDEO_RENDER_FRAMES_H_ // NOLINT
#include <list>
#include "webrtc/modules/video_render/include/video_render.h"
namespace webrtc {
// Class definitions
class VideoRenderFrames {
public:
VideoRenderFrames();
~VideoRenderFrames();
// Add a frame to the render queue
int32_t AddFrame(I420VideoFrame* new_frame);
// Get a frame for rendering, if it's time to render.
I420VideoFrame* FrameToRender();
// Return an old frame
int32_t ReturnFrame(I420VideoFrame* old_frame);
// Releases all frames
int32_t ReleaseAllFrames();
// Returns the number of ms to next frame to render
uint32_t TimeToNextFrameRelease();
// Sets estimates delay in renderer
int32_t SetRenderDelay(const uint32_t render_delay);
private:
typedef std::list<I420VideoFrame*> FrameList;
// 10 seconds for 30 fps.
enum { KMaxNumberOfFrames = 300 };
// Don't render frames with timestamp older than 500ms from now.
enum { KOldRenderTimestampMS = 500 };
// Don't render frames with timestamp more than 10s into the future.
enum { KFutureRenderTimestampMS = 10000 };
// Sorted list with framed to be rendered, oldest first.
FrameList incoming_frames_;
// Empty frames.
FrameList empty_frames_;
// Estimated delay from a frame is released until it's rendered.
uint32_t render_delay_ms_;
};
} // namespace webrtc
#endif // WEBRTC_MODULES_VIDEO_RENDER_MAIN_SOURCE_VIDEO_RENDER_FRAMES_H_ // NOLINT
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