04f4d126f8
Timing information is gathered in EncodedImage, starting at encoders. Then it's sent using RTP header extension. In the end, it's gathered at the GenericDecoder. Actual reporting and tests will be in the next CLs. BUG=webrtc:7594 Review-Url: https://codereview.webrtc.org/2911193002 Cr-Commit-Position: refs/heads/master@{#18659}
51 lines
1.7 KiB
C++
51 lines
1.7 KiB
C++
/*
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* Copyright (c) 2017 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_API_VIDEO_VIDEO_TIMING_H_
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#define WEBRTC_API_VIDEO_VIDEO_TIMING_H_
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#include <stdint.h>
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#include <limits>
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#include "webrtc/base/checks.h"
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#include "webrtc/base/safe_conversions.h"
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namespace webrtc {
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// Video timing timstamps in ms counted from capture_time_ms of a frame.
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struct VideoTiming {
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static const uint8_t kEncodeStartDeltaIdx = 0;
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static const uint8_t kEncodeFinishDeltaIdx = 1;
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static const uint8_t kPacketizationFinishDeltaIdx = 2;
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static const uint8_t kPacerExitDeltaIdx = 3;
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static const uint8_t kNetworkTimestampDeltaIdx = 4;
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static const uint8_t kNetwork2TimestampDeltaIdx = 5;
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// Returns |time_ms - base_ms| capped at max 16-bit value.
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// Used to fill this data structure as per
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// https://webrtc.org/experiments/rtp-hdrext/video-timing/ extension stores
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// 16-bit deltas of timestamps from packet capture time.
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static uint16_t GetDeltaCappedMs(int64_t base_ms, int64_t time_ms) {
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RTC_DCHECK_GE(time_ms, base_ms);
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return rtc::saturated_cast<uint16_t>(time_ms - base_ms);
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}
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uint16_t encode_start_delta_ms;
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uint16_t encode_finish_delta_ms;
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uint16_t packetization_finish_delta_ms;
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uint16_t pacer_exit_delta_ms;
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uint16_t network_timstamp_delta_ms;
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uint16_t network2_timstamp_delta_ms;
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bool is_timing_frame;
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};
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} // namespace webrtc
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#endif // WEBRTC_API_VIDEO_VIDEO_TIMING_H_
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