commit b3944f021dcb42e47fe64667e5470d36fe28c30a
author Alex Narest <alexnarest@webrtc.org> Fri Oct 13 12:56:18 2017
committer Commit Bot <commit-bot@chromium.org> Fri Oct 13 13:47:07 2017
tree bc36e32b129e81ad726ad8f9768ef4cfe1dd2376
parent 385b10bbaade624470e9ee6cf4844cc5740febb7

Media track ID visibility at BWE level

Track IDs are assigned by application during track creation. 
Track IDs are used by custom bitrate allocation strategies to identify tracks. 
Track ID can be empty, in that case bitrate allocation strategies will not be able to handle
these tracks specifically and will handle them as a default.

Bug: webrtc:8243
Change-Id: I89987e33328320bfd0539ad532342df6da144c98
Reviewed-on: https://webrtc-review.googlesource.com/4820
Commit-Queue: Alex Narest <alexnarest@webrtc.org>
Reviewed-by: Taylor Brandstetter <deadbeef@webrtc.org>
Reviewed-by: Niels Moller <nisse@webrtc.org>
Reviewed-by: Stefan Holmer <stefan@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#20285}

call/bitrate_allocator.cc

diff --git a/call/bitrate_allocator.cc b/call/bitrate_allocator.cc
index 8570ae3..b379f7f 100644
--- a/call/bitrate_allocator.cc
+++ b/call/bitrate_allocator.cc
@@ -124,7 +124,8 @@
                                    uint32_t min_bitrate_bps,
                                    uint32_t max_bitrate_bps,
                                    uint32_t pad_up_bitrate_bps,
-                                   bool enforce_min_bitrate) {
+                                   bool enforce_min_bitrate,
+                                   std::string track_id) {
   RTC_DCHECK_CALLED_SEQUENTIALLY(&sequenced_checker_);
   auto it = FindObserverConfig(observer);
 
@@ -137,7 +138,7 @@
   } else {
     bitrate_observer_configs_.push_back(
         ObserverConfig(observer, min_bitrate_bps, max_bitrate_bps,
-                       pad_up_bitrate_bps, enforce_min_bitrate));
+                       pad_up_bitrate_bps, enforce_min_bitrate, track_id));
   }
 
   ObserverAllocation allocation;