Implementing auto pausing of video streams.

webrtc/call/call.cc

Index: webrtc/call/call.cc
diff --git a/webrtc/call/call.cc b/webrtc/call/call.cc
index e3c6ec7a0ccb5443e69dabb02dcb11f39f2460e0..0ac5a0f1e11c26f867b7127da1230733e352746d 100644
--- a/webrtc/call/call.cc
+++ b/webrtc/call/call.cc
@@ -10,6 +10,7 @@
 
 #include <string.h>
 
+#include <algorithm>
 #include <map>
 #include <memory>
 #include <vector>
@@ -700,6 +701,10 @@ void Call::OnNetworkChanged(uint32_t target_bitrate_bps, uint8_t fraction_loss,
     pacer_bitrate_sum_kbits_ += pacer_bitrate_bps / 1000;
     ++num_bitrate_updates_;
   }
+
+  // Make sure to not ask for more padding than the current BWE allows for.

[pbos-webrtc, 2016/06/06 15:26:29]

Should this be controlled in here or capped inside? (E.g. does
CongestionController know about the max bitrate?)

[mflodman, 2016/06/09 13:23:13]

That is a good question, but Per is reworking this entirely in another CL
(already up for review) and I'd prefer to keep it this way to make his change
easier. It will go in very soon.

OK?

+  pad_up_to_bitrate_bps = std::min(static_cast<uint32_t>(pad_up_to_bitrate_bps),
+                                   target_bitrate_bps);
   congestion_controller_->SetAllocatedSendBitrate(allocated_bitrate_bps,
                                                   pad_up_to_bitrate_bps);
 }