modules/video_coding refactorings

webrtc/modules/video_coding/main/source/codec_timer.h

-/*
- *  Copyright (c) 2011 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_CODING_CODEC_TIMER_H_
-#define WEBRTC_MODULES_VIDEO_CODING_CODEC_TIMER_H_
-
-#include "webrtc/modules/include/module_common_types.h"
-#include "webrtc/typedefs.h"
-
-namespace webrtc
-{
-
-// MAX_HISTORY_SIZE * SHORT_FILTER_MS defines the window size in milliseconds
-#define MAX_HISTORY_SIZE 10
-#define SHORT_FILTER_MS 1000
-
-class VCMShortMaxSample
-{
-public:
-    VCMShortMaxSample() : shortMax(0), timeMs(-1) {};
-
-    int32_t     shortMax;
-    int64_t     timeMs;
-};
-
-class VCMCodecTimer
-{
-public:
-    VCMCodecTimer();
-
-    // Updates the max filtered decode time.
-    void MaxFilter(int32_t newDecodeTimeMs, int64_t nowMs);
-
-    // Empty the list of timers.
-    void Reset();
-
-    // Get the required decode time in ms.
-    int32_t RequiredDecodeTimeMs(FrameType frameType) const;
-
-private:
-    void UpdateMaxHistory(int32_t decodeTime, int64_t now);
-    void ProcessHistory(int64_t nowMs);
-
-    int32_t                     _filteredMax;
-    // The number of samples ignored so far.
-    int32_t                     _ignoredSampleCount;
-    int32_t                     _shortMax;
-    VCMShortMaxSample           _history[MAX_HISTORY_SIZE];
-
-};
-
-}  // namespace webrtc
-
-#endif // WEBRTC_MODULES_VIDEO_CODING_CODEC_TIMER_H_