Disable frame-dropper for cloudgaming (#76)

Author: taste1981

api/stats/rtc_stats_report.h

@@ -23,6 +23,7 @@
 #include "api/ref_counted_base.h"
 #include "api/scoped_refptr.h"
 #include "api/stats/rtc_stats.h"
+#include "rtc_base/constructor_magic.h"
 // TODO(tommi): Remove this include after fixing iwyu issue in chromium.
 // See: third_party/blink/renderer/platform/peerconnection/rtc_stats.cc
 #include "rtc_base/ref_counted_object.h"
@@ -57,14 +58,15 @@ class RTC_EXPORT RTCStatsReport final
     // Reference report to make sure it is kept alive.
     rtc::scoped_refptr<const RTCStatsReport> report_;
     StatsMap::const_iterator it_;
+    RTC_DISALLOW_COPY_AND_ASSIGN(ConstIterator);
   };
 
   // TODO(hbos): Remove "= 0" once Chromium unittest has been updated to call
   // with a parameter. crbug.com/627816
   static rtc::scoped_refptr<RTCStatsReport> Create(int64_t timestamp_us = 0);
 
   explicit RTCStatsReport(int64_t timestamp_us);
-  RTCStatsReport(const RTCStatsReport& other) = delete;
+  //RTCStatsReport(const RTCStatsReport& other) = delete;
   rtc::scoped_refptr<RTCStatsReport> Copy() const;
 
   int64_t timestamp_us() const { return timestamp_us_; }
@@ -130,6 +132,7 @@ class RTC_EXPORT RTCStatsReport final
  private:
   int64_t timestamp_us_;
   StatsMap stats_;
+  RTC_DISALLOW_COPY_AND_ASSIGN(RTCStatsReport);
 };
 
 }  // namespace webrtc

media/engine/encoder_simulcast_proxy.h

@@ -25,6 +25,7 @@
 #include "api/video_codecs/video_encoder.h"
 #include "api/video_codecs/video_encoder_factory.h"
 #include "modules/video_coding/include/video_codec_interface.h"
+#include "rtc_base/constructor_magic.h"
 #include "rtc_base/system/rtc_export.h"
 
 namespace webrtc {
@@ -57,6 +58,7 @@ class RTC_EXPORT EncoderSimulcastProxy : public VideoEncoder {
   SdpVideoFormat video_format_;
   std::unique_ptr<VideoEncoder> encoder_;
   EncodedImageCallback* callback_;
+  RTC_DISALLOW_COPY_AND_ASSIGN(EncoderSimulcastProxy);
 };
 
 }  // namespace webrtc

p2p/base/port_allocator.h

@@ -665,6 +665,7 @@ class RTC_EXPORT PortAllocator : public sigslot::has_slots<> {
   // if ice_credentials is nullptr.
   std::vector<std::unique_ptr<PortAllocatorSession>>::const_iterator
   FindPooledSession(const IceParameters* ice_credentials = nullptr) const;
+  RTC_DISALLOW_COPY_AND_ASSIGN(PortAllocator);
 };
 
 }  // namespace cricket

video/video_stream_encoder.cc

@@ -1550,6 +1550,9 @@ bool VideoStreamEncoder::EncoderPaused() const {
   // pacer queue has grown too large in buffered mode.
   // If the pacer queue has grown too large or the network is down,
   // `last_encoder_rate_settings_->encoder_target` will be 0.
+  // For low latency mode we always disable encoder pausing.
+  if (field_trial::IsEnabled("OWT-LowLatencyMode"))
+    return false;
   return !last_encoder_rate_settings_ ||
          last_encoder_rate_settings_->encoder_target == DataRate::Zero();
 }
@@ -2302,7 +2305,8 @@ void VideoStreamEncoder::OnBitrateUpdated(DataRate target_bitrate,
 
 bool VideoStreamEncoder::DropDueToSize(uint32_t pixel_count) const {
   if (!encoder_ || !stream_resource_manager_.DropInitialFrames() ||
-      !encoder_target_bitrate_bps_.has_value()) {
+      !encoder_target_bitrate_bps_.has_value() ||
+      field_trial::IsEnabled("OWT-LowLatencyMode")) {
     return false;
   }