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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_MEDIASTREAM_VIDEO_RENDERER_ALGORITHM_WRAPPER_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_MEDIASTREAM_VIDEO_RENDERER_ALGORITHM_WRAPPER_H_
#include <stddef.h>
#include <stdint.h>
#include "base/functional/callback.h"
#include "base/memory/raw_ptr.h"
#include "base/time/time.h"
#include "media/base/media_util.h"
#include "media/base/time_source.h"
#include "media/base/video_frame.h"
#include "media/filters/video_renderer_algorithm.h"
#include "third_party/blink/renderer/modules/mediastream/low_latency_video_renderer_algorithm.h"
namespace blink {
class VideoRendererAlgorithmWrapper {
public:
enum RendererAlgorithm { kDefault, kLowLatency };
VideoRendererAlgorithmWrapper(
const media::TimeSource::WallClockTimeCB& wall_clock_time_cb,
media::MediaLog* media_log);
scoped_refptr<media::VideoFrame> Render(base::TimeTicks deadline_min,
base::TimeTicks deadline_max,
size_t* frames_dropped);
void EnqueueFrame(scoped_refptr<media::VideoFrame> frame);
void Reset(media::VideoRendererAlgorithm::ResetFlag reset_flag =
media::VideoRendererAlgorithm::ResetFlag::kEverything);
size_t frames_queued() const {
return renderer_algorithm_ == RendererAlgorithm::kDefault
? default_rendering_frame_buffer_->frames_queued()
: low_latency_rendering_frame_buffer_->frames_queued();
}
base::TimeDelta average_frame_duration() const {
return renderer_algorithm_ == RendererAlgorithm::kDefault
? default_rendering_frame_buffer_->average_frame_duration()
: low_latency_rendering_frame_buffer_->average_frame_duration();
}
bool NeedsReferenceTime() const;
RendererAlgorithm renderer_algorithm() const { return renderer_algorithm_; }
private:
const media::TimeSource::WallClockTimeCB wall_clock_time_cb_;
raw_ptr<media::MediaLog> media_log_;
RendererAlgorithm renderer_algorithm_;
std::unique_ptr<media::VideoRendererAlgorithm>
default_rendering_frame_buffer_;
std::unique_ptr<LowLatencyVideoRendererAlgorithm>
low_latency_rendering_frame_buffer_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_MEDIASTREAM_VIDEO_RENDERER_ALGORITHM_WRAPPER_H_
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