2557b86e76
The main purpose was the interface-> include rename, but other files were also moved, eliminating the "main" dir. To avoid breaking downstream, the "interface" directories were copied into a new "video_coding/include" dir. The old headers got pragma warnings added about deprecation (a very short deprecation since I plan to remove them as soon downstream is updated). Other files also moved: video_coding/main/source -> video_coding video_coding/main/test -> video_coding/test BUG=webrtc:5095 TESTED=Passing compile-trybots with --clobber flag: git cl try --clobber --bot=win_compile_rel --bot=linux_compile_rel --bot=android_compile_rel --bot=mac_compile_rel --bot=ios_rel --bot=linux_gn_rel --bot=win_x64_gn_rel --bot=mac_x64_gn_rel --bot=android_gn_rel -m tryserver.webrtc R=stefan@webrtc.org, tommi@webrtc.org Review URL: https://codereview.webrtc.org/1417283007 . Cr-Commit-Position: refs/heads/master@{#10694}
67 lines
2.5 KiB
C++
67 lines
2.5 KiB
C++
/*
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* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef WEBRTC_MODULES_VIDEO_CODING_INTER_FRAME_DELAY_H_
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#define WEBRTC_MODULES_VIDEO_CODING_INTER_FRAME_DELAY_H_
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#include "webrtc/typedefs.h"
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namespace webrtc
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{
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class VCMInterFrameDelay
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{
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public:
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VCMInterFrameDelay(int64_t currentWallClock);
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// Resets the estimate. Zeros are given as parameters.
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void Reset(int64_t currentWallClock);
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// Calculates the delay of a frame with the given timestamp.
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// This method is called when the frame is complete.
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//
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// Input:
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// - timestamp : RTP timestamp of a received frame
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// - *delay : Pointer to memory where the result should be stored
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// - currentWallClock : The current time in milliseconds.
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// Should be -1 for normal operation, only used for testing.
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// Return value : true if OK, false when reordered timestamps
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bool CalculateDelay(uint32_t timestamp,
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int64_t *delay,
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int64_t currentWallClock);
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// Returns the current difference between incoming timestamps
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//
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// Return value : Wrap-around compensated difference between incoming
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// timestamps.
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uint32_t CurrentTimeStampDiffMs() const;
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private:
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// Controls if the RTP timestamp counter has had a wrap around
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// between the current and the previously received frame.
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//
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// Input:
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// - timestmap : RTP timestamp of the current frame.
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void CheckForWrapArounds(uint32_t timestamp);
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int64_t _zeroWallClock; // Local timestamp of the first video packet received
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int32_t _wrapArounds; // Number of wrapArounds detected
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// The previous timestamp passed to the delay estimate
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uint32_t _prevTimestamp;
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// The previous wall clock timestamp used by the delay estimate
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int64_t _prevWallClock;
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// Wrap-around compensated difference between incoming timestamps
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int64_t _dTS;
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};
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} // namespace webrtc
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#endif // WEBRTC_MODULES_VIDEO_CODING_INTER_FRAME_DELAY_H_
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