Repo created

TMessagesProj/jni/voip/webrtc/video/frame_decode_timing.h

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+/*
+ *  Copyright (c) 2022 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 VIDEO_FRAME_DECODE_TIMING_H_
+#define VIDEO_FRAME_DECODE_TIMING_H_
+
+#include <stdint.h>
+
+#include <functional>
+
+#include "api/task_queue/pending_task_safety_flag.h"
+#include "api/task_queue/task_queue_base.h"
+#include "modules/video_coding/timing/timing.h"
+#include "system_wrappers/include/clock.h"
+
+namespace webrtc {
+
+class FrameDecodeTiming {
+ public:
+  FrameDecodeTiming(Clock* clock, webrtc::VCMTiming const* timing);
+  ~FrameDecodeTiming() = default;
+  FrameDecodeTiming(const FrameDecodeTiming&) = delete;
+  FrameDecodeTiming& operator=(const FrameDecodeTiming&) = delete;
+
+  // Any frame that has decode delay more than this in the past can be
+  // fast-forwarded.
+  static constexpr TimeDelta kMaxAllowedFrameDelay = TimeDelta::Millis(5);
+
+  struct FrameSchedule {
+    Timestamp latest_decode_time;
+    Timestamp render_time;
+  };
+
+  absl::optional<FrameSchedule> OnFrameBufferUpdated(
+      uint32_t next_temporal_unit_rtp,
+      uint32_t last_temporal_unit_rtp,
+      TimeDelta max_wait_for_frame,
+      bool too_many_frames_queued);
+
+ private:
+  Clock* const clock_;
+  webrtc::VCMTiming const* const timing_;
+};
+
+}  // namespace webrtc
+
+#endif  // VIDEO_FRAME_DECODE_TIMING_H_