Implement new specification for degradation preference
The degradation preference is now based on the content hint of the track
if it's unspecified.
Bug: webrtc:11164
Change-Id: Iaa0dbf1c1bf68a46fc5131e534d423c30c5439c7
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/161233
Commit-Queue: Florent Castelli <orphis@webrtc.org>
Reviewed-by: Stefan Holmer <stefan@webrtc.org>
Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org>
Reviewed-by: Åsa Persson <asapersson@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#30691}
diff --git a/api/rtp_parameters.h b/api/rtp_parameters.h
index 358a582..a22f764 100644
--- a/api/rtp_parameters.h
+++ b/api/rtp_parameters.h
@@ -609,8 +609,7 @@
// When bandwidth is constrained and the RtpSender needs to choose between
// degrading resolution or degrading framerate, degradationPreference
// indicates which is preferred. Only for video tracks.
- DegradationPreference degradation_preference =
- DegradationPreference::BALANCED;
+ absl::optional<DegradationPreference> degradation_preference;
bool operator==(const RtpParameters& o) const {
return mid == o.mid && codecs == o.codecs &&
