iOS: Add new RTCVideoSource interface

webrtc/sdk/objc/Framework/Headers/WebRTC/RTCVideoSource.h

Index: webrtc/sdk/objc/Framework/Headers/WebRTC/RTCVideoSource.h
diff --git a/webrtc/sdk/objc/Framework/Headers/WebRTC/RTCVideoSource.h b/webrtc/sdk/objc/Framework/Headers/WebRTC/RTCVideoSource.h
index 96bb6f369973c55ea7345d8528b368fc6cebb4e1..b5be132bcbd94d22a5792702804c2f4a66d2febb 100644
--- a/webrtc/sdk/objc/Framework/Headers/WebRTC/RTCVideoSource.h
+++ b/webrtc/sdk/objc/Framework/Headers/WebRTC/RTCVideoSource.h
@@ -12,14 +12,29 @@
 
 #import <WebRTC/RTCMacros.h>
 #import <WebRTC/RTCMediaSource.h>
+#import <WebRTC/RTCVideoCapturer.h>
 
 NS_ASSUME_NONNULL_BEGIN
 
 RTC_EXPORT
-@interface RTCVideoSource : RTCMediaSource
+
+@interface RTCVideoSource : RTCMediaSource<RTCVideoCapturerDelegate>

[tkchin_webrtc, 2017/04/06 18:01:52]

space after RTCMediaSource

[magjed_webrtc, 2017/04/10 12:12:50]

Done.

 
 - (instancetype)init NS_UNAVAILABLE;
 
+// RTCVideoCapturerDelegate protocol implementation.

[tkchin_webrtc, 2017/04/06 18:01:52]

not required (part of decl above). Can be removed.

[magjed_webrtc, 2017/04/10 12:12:50]

Done.

+- (void)capturer:(RTCVideoCapturer*)capturer didCaptureVideoFrame:(RTCVideoFrame*)frame;

[tkchin_webrtc, 2017/04/06 18:01:52]

style:
(RTCVideoCapturer *)
(RTCVideoFrame *)

[magjed_webrtc, 2017/04/10 12:12:50]

Acknowledged.

+
+/**
+ * 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;
+
 @end
 
 NS_ASSUME_NONNULL_END