commit deac4dea4fa3fde805c1b988a846e776a62b7b2c
author Philipp Hancke <philipp.hancke@googlemail.com> Fri Jul 23 05:08:33 2021
committer WebRTC LUCI CQ <webrtc-scoped@luci-project-accounts.iam.gserviceaccount.com> Tue Aug 03 14:26:02 2021
tree 3751f1d512a5cd052f0e16a6811ccb02593f4a61
parent 8d564722d7c3af1948c345175675106a75b75d3f

red: copy audio level from main packet for recovery packet

fill the audio level of the recovery packets from the main packet.
While not exact, this should be close enough. Without this,
the audio level in getStats() will be filled but the audio level
in getSynchronizationSources() will be empty.

In chrome this is easy to test, the audio level graph on
  https://webrtc.github.io/samples/src/content/peerconnection/audio/
will be empty all the time prior to this fix.

BUG=webrtc:11640

Change-Id: Ia1e61fd1852445239021a76d08032120a92d83aa
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/226840
Reviewed-by: Henrik Lundin <henrik.lundin@webrtc.org>
Commit-Queue: Henrik Lundin <henrik.lundin@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#34635}

modules/audio_coding/neteq/red_payload_splitter.cc

diff --git a/modules/audio_coding/neteq/red_payload_splitter.cc b/modules/audio_coding/neteq/red_payload_splitter.cc
index b7b4520..7438f25 100644
--- a/modules/audio_coding/neteq/red_payload_splitter.cc
+++ b/modules/audio_coding/neteq/red_payload_splitter.cc
@@ -136,7 +136,7 @@
             /*ssrc=*/red_packet.packet_info.ssrc(),
             /*csrcs=*/std::vector<uint32_t>(),
             /*rtp_timestamp=*/new_packet.timestamp,
-            /*audio_level=*/absl::nullopt,
+            red_packet.packet_info.audio_level(),
             /*absolute_capture_time=*/absl::nullopt,
             /*receive_time=*/red_packet.packet_info.receive_time());
         new_packets.push_front(std::move(new_packet));