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* Copyright 2019 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.
#include "api/units/data_rate.h"
#include "api/units/time_delta.h"
#include "api/units/timestamp.h"
#include "api/video/video_frame_buffer.h"
#include "rtc_base/numerics/event_rate_counter.h"
#include "rtc_base/numerics/sample_stats.h"
namespace webrtc {
namespace test {
struct VideoFramePair {
rtc::scoped_refptr<VideoFrameBuffer> captured;
rtc::scoped_refptr<VideoFrameBuffer> decoded;
Timestamp capture_time = Timestamp::MinusInfinity();
Timestamp decoded_time = Timestamp::PlusInfinity();
Timestamp render_time = Timestamp::PlusInfinity();
// A unique identifier for the spatial/temporal layer the decoded frame
// belongs to. Note that this does not reflect the id as defined by the
// underlying layer setup.
int layer_id = 0;
int capture_id = 0;
int decode_id = 0;
// Indicates the repeat count for the decoded frame. Meaning that the same
// decoded frame has matched differend captured frames.
int repeated = 0;
struct VideoFramesStats {
int count = 0;
SampleStats<double> pixels;
SampleStats<double> resolution;
EventRateCounter frames;
void AddFrameInfo(const VideoFrameBuffer& frame, Timestamp at_time);
void AddStats(const VideoFramesStats& other);
struct VideoQualityStats {
int lost_count = 0;
int freeze_count = 0;
VideoFramesStats capture;
VideoFramesStats render;
// Time from frame was captured on device to time frame was delivered from
// decoder.
SampleStats<TimeDelta> capture_to_decoded_delay;
// Time from frame was captured on device to time frame was displayed on
// device.
SampleStats<TimeDelta> end_to_end_delay;
// PSNR for delivered frames. Note that this might go up for a worse
// connection due to frame dropping.
SampleStats<double> psnr;
// PSNR for all frames, dropped or lost frames are compared to the last
// successfully delivered frame
SampleStats<double> psnr_with_freeze;
// Frames skipped between two nearest.
SampleStats<double> skipped_between_rendered;
// In the next 2 metrics freeze is a pause that is longer, than maximum:
// 1. 150ms
// 2. 3 * average time between two sequential frames.
// Item 1 will cover high fps video and is a duration, that is noticeable by
// human eye. Item 2 will cover low fps video like screen sharing.
SampleStats<TimeDelta> freeze_duration;
// Mean time between one freeze end and next freeze start.
SampleStats<TimeDelta> time_between_freezes;
void AddStats(const VideoQualityStats& other);
struct CollectedCallStats {
SampleStats<DataRate> target_rate;
SampleStats<TimeDelta> pacer_delay;
SampleStats<TimeDelta> round_trip_time;
SampleStats<double> memory_usage;
struct CollectedAudioReceiveStats {
SampleStats<double> expand_rate;
SampleStats<double> accelerate_rate;
SampleStats<TimeDelta> jitter_buffer;
struct CollectedVideoSendStats {
SampleStats<double> encode_frame_rate;
SampleStats<TimeDelta> encode_time;
SampleStats<double> encode_usage;
SampleStats<DataRate> media_bitrate;
SampleStats<DataRate> fec_bitrate;
struct CollectedVideoReceiveStats {
SampleStats<TimeDelta> decode_time;
SampleStats<TimeDelta> decode_time_max;
SampleStats<double> decode_pixels;
SampleStats<double> resolution;
} // namespace test
} // namespace webrtc