57.2.16123 release

WebRTC.framework/Headers/RTCAVFoundationVideoSource.h

@@ -29,6 +29,16 @@ RTC_EXPORT
 
 - (instancetype)init NS_UNAVAILABLE;
 
+/**
+ * Calling this function will cause frames to be scaled down to the
+ * requested resolution. Also, frames will be cropped to match the
+ * requested aspect ratio, and frames will be dropped to match the
+ * requested fps. The requested aspect ratio is orientation agnostic and
+ * will be adjusted to maintain the input orientation, so it doesn't
+ * matter if e.g. 1280x720 or 720x1280 is requested.
+ */
+- (void)adaptOutputFormatToWidth:(int)width height:(int)height fps:(int)fps;
+
 /** Returns whether rear-facing camera is available for use. */
 @property(nonatomic, readonly) BOOL canUseBackCamera;
 

WebRTC.framework/Headers/RTCConfiguration.h

@@ -84,6 +84,7 @@ RTC_EXPORT
 @property(nonatomic, assign)
     RTCContinualGatheringPolicy continualGatheringPolicy;
 @property(nonatomic, assign) int audioJitterBufferMaxPackets;
+@property(nonatomic, assign) BOOL audioJitterBufferFastAccelerate;
 @property(nonatomic, assign) int iceConnectionReceivingTimeout;
 @property(nonatomic, assign) int iceBackupCandidatePairPingInterval;
 

WebRTC.framework/Headers/RTCFieldTrials.h

@@ -12,12 +12,24 @@
 
 #import <WebRTC/RTCMacros.h>
 
-typedef NS_OPTIONS(NSUInteger, RTCFieldTrialOptions) {
-  RTCFieldTrialOptionsNone = 0,
-  RTCFieldTrialOptionsImprovedBitrateEstimate = 1 << 0,
-};
+/** The only valid value for the following if set is kRTCFieldTrialEnabledValue. */
+RTC_EXTERN NSString * const kRTCFieldTrialAudioSendSideBweKey;
+RTC_EXTERN NSString * const kRTCFieldTrialFlexFec03Key;
+RTC_EXTERN NSString * const kRTCFieldTrialImprovedBitrateEstimateKey;
+RTC_EXTERN NSString * const kRTCFieldTrialH264HighProfileKey;
 
-/** Must be called before any other call into WebRTC. See:
+/** The valid value for field trials above. */
+RTC_EXTERN NSString * const kRTCFieldTrialEnabledValue;
+
+/** Use a string returned by RTCFieldTrialTrendlineFilterValue as the value. */
+RTC_EXTERN NSString * const kRTCFieldTrialTrendlineFilterKey;
+/** Returns a valid value for kRTCFieldTrialTrendlineFilterKey. */
+RTC_EXTERN NSString *RTCFieldTrialTrendlineFilterValue(
+    size_t windowSize, double smoothingCoeff, double thresholdGain);
+
+/** Initialize field trials using a dictionary mapping field trial keys to their values. See above
+ *  for valid keys and values.
+ *  Must be called before any other call into WebRTC. See:
  *  webrtc/system_wrappers/include/field_trial_default.h
  */
-RTC_EXTERN void RTCInitFieldTrials(RTCFieldTrialOptions options);
+RTC_EXTERN void RTCInitFieldTrialDictionary(NSDictionary<NSString *, NSString *> *fieldTrials);

WebRTC.framework/Headers/RTCRtpEncodingParameters.h

@@ -25,6 +25,9 @@ RTC_EXPORT
  */
 @property(nonatomic, copy, nullable) NSNumber *maxBitrateBps;
 
+/** The SSRC being used by this encoding. */
+@property(nonatomic, readonly, nullable) NSNumber *ssrc;
+
 - (instancetype)init NS_DESIGNATED_INITIALIZER;
 
 @end

WebRTC.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name         = "WebRTC"
-  s.version      = "56.12.15101"
+  s.version      = "57.2.16123"
   s.summary      = "WebRTC SDK for iOS"
   s.description  = <<-DESC
     WebRTC is a free, open project that provides browsers and mobile