message: Do not count padding bitrate as video bitrate stat
diff: @@ -50,11 +50,16 @@ void StatsCalculator::processRtpPacket(std::shared_ptr<DataPacket> packet) {
  }
  getStatsInfo()[ssrc].insertStat("bitrateCalculated", MovingIntervalRateStat{kRateStatIntervalSize,
  kRateStatIntervals, 8.});
  + getStatsInfo()[ssrc].insertStat("mediaBitrateCalculated", MovingIntervalRateStat{kRateStatIntervalSize,
  + kRateStatIntervals, 8.});
  }
  getStatsInfo()[ssrc]["bitrateCalculated"] += len;
  getStatsInfo()["total"]["bitrateCalculated"] += len;
  + if (!packet->is_padding) {
  + getStatsInfo()[ssrc]["mediaBitrateCalculated"] += len;
  + }
  if (packet->type == VIDEO_PACKET) {
  - stream_->setVideoBitrate(getStatsInfo()[ssrc]["bitrateCalculated"].value());
  + stream_->setVideoBitrate(getStatsInfo()[ssrc]["mediaBitrateCalculated"].value());
  if (packet->is_keyframe) {
  incrStat(ssrc, "keyFrames");
  }
  