| /* |
| * 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 "typedefs.h" |
| #include "module_common_types.h" |
| |
| namespace webrtc |
| { |
| |
| // MAX_HISTORY_SIZE * SHORT_FILTER_MS defines the window size in milliseconds |
| #define MAX_HISTORY_SIZE 20 |
| #define SHORT_FILTER_MS 1000 |
| |
| class VCMShortMaxSample |
| { |
| public: |
| VCMShortMaxSample() : shortMax(0), timeMs(-1) {}; |
| |
| WebRtc_Word32 shortMax; |
| WebRtc_Word64 timeMs; |
| }; |
| |
| class VCMCodecTimer |
| { |
| public: |
| VCMCodecTimer(); |
| |
| // Updates and returns the max filtered decode time. |
| WebRtc_Word32 StopTimer(WebRtc_Word64 startTimeMs, WebRtc_Word64 nowMs); |
| |
| // Empty the list of timers. |
| void Reset(); |
| |
| // Get the required decode time in ms. |
| WebRtc_Word32 RequiredDecodeTimeMs(FrameType frameType) const; |
| |
| private: |
| void UpdateMaxHistory(WebRtc_Word32 decodeTime, WebRtc_Word64 now); |
| void MaxFilter(WebRtc_Word32 newTime, WebRtc_Word64 nowMs); |
| void ProcessHistory(WebRtc_Word64 nowMs); |
| |
| WebRtc_Word32 _filteredMax; |
| bool _firstDecodeTime; |
| WebRtc_Word32 _shortMax; |
| VCMShortMaxSample _history[MAX_HISTORY_SIZE]; |
| |
| }; |
| |
| } // namespace webrtc |
| |
| #endif // WEBRTC_MODULES_VIDEO_CODING_CODEC_TIMER_H_ |