webrtc_video_stats_db.cc | Explore in Territory

// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/40285824): Remove this and convert code to safer constructs.
#pragma allow_unsafe_buffers
#endif

#include "media/capabilities/webrtc_video_stats_db.h"

#include "base/check_op.h"
#include "base/format_macros.h"
#include "base/metrics/field_trial_params.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/stringprintf.h"
#include "media/base/media_switches.h"
#include "media/capabilities/bucket_utility.h"

namespace media {

namespace {
// Default value for maximum number of days until a stats entry is considered
// expired.
constexpr int kMaxDaysToKeepStatsDefault = …;
// Default value for maximum number of stats entries per config.
constexpr int kMaxEntriesPerConfigDefault = …;
// Field trial parameter names.
constexpr char kMaxDaysToKeepStatsParamName[] = …;
constexpr char kMaxEntriesPerConfigParamName[] = …;

// Group similar codec profiles to the same entry. Returns
// VIDEO_CODEC_PROFILE_UNKNOWN if `codec_profile` is outside the valid range or
// not tracked. The reason to not track all codec profiles is to limit the
// fingerprinting surface.
VideoCodecProfile GetWebrtcCodecProfileBucket(VideoCodecProfile codec_profile) { … }

}  // namespace

// static
WebrtcVideoStatsDB::VideoDescKey
WebrtcVideoStatsDB::VideoDescKey::MakeBucketedKey(
    bool is_decode_stats,
    VideoCodecProfile codec_profile,
    bool hardware_accelerated,
    int pixels) { … }

WebrtcVideoStatsDB::VideoDescKey::VideoDescKey(bool is_decode_stats,
                                               VideoCodecProfile codec_profile,
                                               bool hardware_accelerated,
                                               int pixels)
    : … { … }

std::string WebrtcVideoStatsDB::VideoDescKey::Serialize() const { … }

std::string WebrtcVideoStatsDB::VideoDescKey::SerializeWithoutPixels() const { … }

std::string WebrtcVideoStatsDB::VideoDescKey::ToLogStringForDebug() const { … }

// static
std::optional<int> WebrtcVideoStatsDB::VideoDescKey::ParsePixelsFromKey(
    std::string key) { … }

WebrtcVideoStatsDB::VideoStats::VideoStats(double timestamp,
                                           uint32_t frames_processed,
                                           uint32_t key_frames_processed,
                                           float p99_processing_time_ms)
    : … { … }

WebrtcVideoStatsDB::VideoStats::VideoStats(uint32_t frames_processed,
                                           uint32_t key_frames_processed,
                                           float p99_processing_time_ms)
    : … { … }

WebrtcVideoStatsDB::VideoStats::VideoStats(const VideoStats& entry) = default;

WebrtcVideoStatsDB::VideoStats& WebrtcVideoStatsDB::VideoStats::operator=(
    const VideoStats& entry) = default;

std::string WebrtcVideoStatsDB::VideoStats::ToLogString() const { … }

bool operator==(const WebrtcVideoStatsDB::VideoDescKey& x,
                const WebrtcVideoStatsDB::VideoDescKey& y) { … }
bool operator!=(const WebrtcVideoStatsDB::VideoDescKey& x,
                const WebrtcVideoStatsDB::VideoDescKey& y) { … }

bool operator==(const WebrtcVideoStatsDB::VideoStats& x,
                const WebrtcVideoStatsDB::VideoStats& y) { … }
bool operator!=(const WebrtcVideoStatsDB::VideoStats& x,
                const WebrtcVideoStatsDB::VideoStats& y) { … }

// static
base::TimeDelta WebrtcVideoStatsDB::GetMaxTimeToKeepStats() { … }

// static
int WebrtcVideoStatsDB::GetMaxEntriesPerConfig() { … }

}  // namespace media
chromium/media/capabilities/webrtc_video_stats_db.cc
