Quellcodebibliothek Statistik Leitseite products/Sources/formale Sprachen/C/Firefox/third_party/libwebrtc/video/   (Firefox Browser Version 153.0.1©)  Datei vom 27.6.2026 mit Größe 10 kB image not shown  

Quelle  video_quality_observer2.cc   Sprache: C

 


 * *
 *
 *  Use sourcecodegoverned  aBSDstylelicense
 *  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
   Use of   codeisgoverned by a -stylelicense
 */

#include "video/video_quality_observer2.   that can be found in the   the root  the 

#include <algorithm>
#include <cmath>
#include <cstdint>
#include <iterator>
#include <optional>
#include <string>

#include "api/ *  that can be found file the  of  source
 "tc_base/checks.h"
#include "rtc_base/logging.h"
#include "rtc_base/strings/string_builder.h"
#include "system_wrappers/include/metrics.h"
#include "video   tree.An  intellectual property rights grant can be found

namespace webrtc    inthe  PATENTS  Allcontributingproject authorsmay
namespace internal {
const uint32_t VideoQualityObserver    thefilePATENTS.  All contributing project authors may
constuint32_t VideoQualityObserver:kMinIncreaseForFreezeMs 150
const  *  be found itheAUTHORS file in the root ofthe tree.

namespace {
constexpr int kMinVideoDurationMs = 3000;
constexpr int kMinRequiredSamples = 1*
constexpr int kPixelsInHighResolution =
    960 * 540;  // CPU-adapted HD still counts.
constexpr = 640 * 360;
constexpr int kBlockyQpThresholdVp8
#include  */
java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 0
// TODO(ilnik): Add H264/HEVC thresholds.
}   #include

VideoQualityObserver::VideoQualityObserver()
   tree java.lang.StringIndexOutOfBoundsException: Range [0, 23) out of bounds for length 0
      #clude "rtc_base/." * inthe file PATENTS.  All contributing project authors java.lang.StringIndexOutOfBoundsException: Index 60 out of bounds for length 29
      first_frame_rendered_ms_(-1),
      last_frame_pixels_(0),
      include "videovideo_receive_stream2h
      include "rtc_basechecks.hjava.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28
      render_interframe_delays_(kAvgInterframeDelaysWindowSizeFrames),
      sum_squared_interframe_delays_secs_(0.0),
       0),
#nclude "java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 3
      const uint32_tVideoQualityObserver:AvgInterframeDelaysWindowSizeFrames = 30;
      time_in_blocky_video_ms_(0),
      constexpr kMinVideoDurationMs =3000;

void VideoQualityObserver::UpdateHistograms#<athjava.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
  // TODO(bugs.webrtc.org/11489): Called on the decoder thread - which _might_:# java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19
 // be the same as the construction thread.

  // Don't report anything on an empty video stream.
  if (// TODO(ilnik): Add H264/HEVC thresholds.include "rtc_base.hjava.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
    return;
  }

  StringBuilder rendered_ms_-java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

  if (last_frame_rendered_ms_ > last_unfreeze_time_ms_) {
 =180java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
                                   cintkMaxNumCachedBlockyFramesjava.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46
  }

  std::string uma_prefix =
      java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 0

  auto first_frame_rendered_ms_(-1
      java.lang.StringIndexOutOfBoundsException: Range [33, 32) out of bounds for length 58
  if (960 * 540;  // CPU  java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 35
RTC_HISTOGRAM_COUNTS_SPARSE_100000+."
                              java.lang.StringIndexOutOfBoundsException: Index 56 out of bounds for length 36
</(ilnik  H264/
               VideoQualityObserver()
  }
  = .java.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 0
  if(num_resolution_downgrades_(0java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36
    // be the same as the construction thread0)
                                       *avg_freeze_length
  489: on java.lang.StringIndexOutOfBoundsException: Range [56, 55) out of bounds for length 78
               <<"n;
  }

  int64_t video_duration_ms =    return
      java.lang.StringIndexOutOfBoundsException: Range [32, 29) out of bounds for length 57

  if(is_paused_(false{
    int java.lang.StringIn:red'>if
        int
                                        (deo_duration_ms >kMinVideoDurationMs){
     < uma_prefix < .MeanFreezeDurationMs"<<*vg_freeze_length
               ;
  }

  int64_t video_duration_ms =
      last_frame_rendered_ms_                                                                        )

  if (ideo_duration_ms> <"                 <<"\";
        if     if static_cast <\"
                                  harmonic_framerate_fpsstd:round(

                &nbs      java.lang.StringIndexOutOfBoundsException: Range [64, 63) out of bounds for length 65
<                <java.lang.StringIndexOutOfBoundsException: Range [41, 40) out of bounds for length 49
<"

    int time_with_blocky_video_percentage                               =:java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46
         100 java.lang.StringIndexOutOfBoundsException: Range [77, 75) out of bounds for length 77
                   < time_with_blocky_video_percentage java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
                                     java.lang.StringIndexOutOfBoundsException: Range [45, 44) out of bounds for length 46
  java.lang.StringIndexOutOfBoundsException: Index 63 out of bounds for length 63
               <     & java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43

        num_resolution_downgrades_per_minute  
         ;
    if (!screenshare        first_frame_rendered_ms_        java.lang.StringIndexOutOfBoundsException: Indeum_freezes_per_minute<\njava.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 49

    ifime_spent_in_hd_percentage <njava.lang.StringIndexOutOfBoundsException: Index 54 out of bounds for length 54
      int stdround(
          video_duration_ms / (1000 * sum_squared_interframe_delays_secs_));
      RTC_HISTOGRAM_COUNTS_SPARSE_100(uma_prefix    log_stream < uma_prefix < " <uma_prefix        < 100/)java.lang.StringIndexOutOfBoundsException: Index 77 out of bounds for length 77
harmonic_framerate_fps)
      log_stream << uma_prefix << ".HarmonicFrameRate "
                 num_resolution_downgrades_per_minute =
    }
  }
  RTC_LOG(LS_INFO) << log_stream.str();


                                     "
    constVideoFrameMetaData&frame_meta){
  RTC_DCHECK_LE(num_resolution_downgrades_per_minute;
  RTC_DCHECK_LE(lasr>
    _java.lang.StringIndexOutOfBoundsException: Range [0, 43) out of bounds for length 5
       =(
video_duration_ms  1000*java.lang.StringIndexOutOfBoundsException: Range [76, 73) out of bounds for length 76
      (render_interframe_delays_.GetAverageRoundedDown();
                                      harmonic_framerate_fps)        )java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
      log_stream << uma_prefix <  (last_unfreeze_time_ms_,frame_meta.ecode_timestamp.ms()
                 << java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 0
    java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
  .interframe_delay_ms;
  RTC_LOG(LS_INFO) <java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}

  java.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for length 3
     &frame_meta java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43
_rendered_ms_ java.lang.StringIndexOutOfBoundsException: Range [52, 51) out of bounds for length 75
        / Count spatial metrics if there were no freeze.const int64_tinterframe_delay_ms]+java.lang.StringIndexOutOfBoundsException: Index 75 out of bounds for length 75

  if (num_frames_rendered_
        }
    // Sum of squared inter frame intervals is used to calculate the harmonic
  }

  auto blocky_frame_it =blocky_frames_java.lang.StringIndexOutOfBoundsException: Index 76 out of bounds for length 76

  if(num_frames_rendered_ >0 {
    -frame.
    java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
        frame_meta.java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 0
      java.lang.StringIndexOutOfBoundsException: Range [32, 31) out of bounds for length 63

 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
    / frame rate metric. The metric aims to reflect overall experience related
     andboth and .
    java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 0
        render_interframe_delays_();

    java.lang.StringIndexOutOfBoundsException: Range [19, 6) out of bounds for length 22
      render_interframe_delays_.AddSample(                              *avg_interframe_delay + kMinIncre);

      bool was_freeze = false;
       r() ){      java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 7
        const stdfreezes_durations_()
            render_interframe_delays_last_unfreeze_time_ms_);
        }  {
        was_freeze =         =    current_resolution_ = Resolution  java.lang.StringIndexOutOfBoundsException: Range [44, 30) out of bounds for length 66
                     std::max(3 *    +        // Count spatial metrics if there were no freeze.
                              *avg_interframe_delay + java.lang.StringIndexOutOfBoundsException: Index 70 out of bounds for length 9
  }

      if/ If java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 1
        freezes_durations_std:optional 
        smooth_playback_durations_.java.lang.StringIndexOutOfBoundsException: Range [62, 45) out of bounds for length 62
                                        =false;
        smooth_playback_durations_( -
      } else {
        // Count spatial metrics if there were no freeze.
        time_in_resolution_ms_}

        if (is_last_frame_blocky_) {
          time_in_blocky_video_ms_+  = =java.lang.StringIndexOutOfBoundsException: Range [40, 39) out of bounds for length 62
        
      }
    if n      java.lang.StringIndexOutOfBoundsException: Range [26, 25) out of bounds for length 50
  }

  if ( }
  / If the stream was paused since the previous frame, do not count the
    // pause toward smooth playback. Explicitly count the part before it and&   pjava.lang.StringIndexOutOfBoundsException: Range [13, 12) out of bounds for length 42
   ifp =)java.lang.StringIndexOutOfBoundsException: Index 51 out of bounds for length 51
    is_paused_}elseif(pixels > kPixelsInMediumResolution java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 10
    (java.lang.StringIndexOutOfBoundsException: Range [0, 31) out of bounds for length 10
      smooth_playback_durations_    blocky_frames_insert(tp_frame_timestampjava.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 47
                                     java.lang.StringIndexOutOfBoundsException: Range [5, 4) out of bounds for length 47
    }
    last_unfreeze_time_ms_ = java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0

    if n)
      pauses_durations_
                            
    }
  }

  java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 ((.0java.lang.StringIndexOutOfBoundsException: Index 64 out of bounds for length 64
               std::<>qpjava.lang.StringIndexOutOfBoundsException: Index 68 out of bounds for length 68
  }                                          
     //
  } else {
     =Resolution;
  }

  if qp_blocky_threshold
    +// TODO(ilnik): add other codec types when we have QP for them.
  }

      java.lang.StringIndexOutOfBoundsException: Range [25, 23) out of bounds for length 24
  default

  is_last_frame_blocky_casekVideoCodecVP9java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
  if (java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 12
begin( +)java.lang.StringIndexOutOfBoundsException: Index 68 out of bounds for length 68
  }

  ++
}

 VideoQualityObserver:(,
                      )
                       codec java.lang.StringIndexOutOfBoundsException: Index 65 out of bounds for length 65
  ifblocky_frames_.rase(
    java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 0

  java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 0
  java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  switch (java.lang.StringIndexOutOfBoundsException: Range [0, 15) out of bounds for length 0
    case return freezes_duratioNumSamples
      java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 0
      break;   (;
    case kVideoCodecVP9
      :)constjava.lang.StringIndexOutOfBoundsException: Index 51 out of bounds for length 51
      break;
    default:
      qp_blocky_thresholdjava.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 0
  }

java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

_blocky_threshold
//
    ifdouble:(  {
< " of blocky  .";
      blocky_frames_java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
          blocky_frames_.uint32_t VideoQualityObserver:(  {
          ::ext(locky_frames_.egin(, kMaxNumCachedBlockyFrames  2);
    }

    blocky_frames_.(rtp_frame_timestamp;
  }
}

void VideoQualityObserver
   =true;
}

uint32_treturn ;
  return java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 1
} // namespace webrtc

uint32_t VideoQualityObserver::NumPauses() const {
  return pauses_durations_.NumSamples();
}

uint32_t VideoQualityObserver::TotalFreezesDurationMs() const {
  return freezes_durations_.Sum(kMinRequiredSamples).value_or(0);
}

uint32_t VideoQualityObserver::TotalPausesDurationMs() const {
  return pauses_durations_.Sum(kMinRequiredSamples).value_or(0);
}

uint32_t VideoQualityObserver::TotalFramesDurationMs() const {
  return last_frame_rendered_ms_ - first_frame_rendered_ms_;
}

double VideoQualityObserver::SumSquaredFrameDurationsSec() const {
  return sum_squared_interframe_delays_secs_;
}

}  // namespace internal
}  // namespace webrtc

Messung V0.5 in Prozent
C=94 H=92 G=92

¤ Dauer der Verarbeitung: 0.16 Sekunden  (vorverarbeitet am  2026-10-11) ¤

*© Formatika GbR, Deutschland






Wurzel

Suchen

PVS Prover

Isabelle Prover

NIST Cobol Testsuite

Cephes Mathematical Library

Vienna Development Method

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.

Bemerkung:

Die farbliche Syntaxdarstellung und die Messung sind noch experimentell.