Support texture scaling in Androids MediaEncoder

talk/app/webrtc/androidvideocapturer.cc

Index: talk/app/webrtc/androidvideocapturer.cc
diff --git a/talk/app/webrtc/androidvideocapturer.cc b/talk/app/webrtc/androidvideocapturer.cc
index d850ab8addd54ee77dac2e987e16adebef32d06a..d31cf6b075f0c215d8071002e2d34964df0189b2 100644
--- a/talk/app/webrtc/androidvideocapturer.cc
+++ b/talk/app/webrtc/androidvideocapturer.cc
@@ -26,6 +26,7 @@
  */
 #include "talk/app/webrtc/androidvideocapturer.h"
 
+#include "talk/app/webrtc/java/jni/native_handle_impl.h"
 #include "talk/media/webrtc/webrtcvideoframe.h"
 #include "webrtc/base/common.h"
 #include "webrtc/base/json.h"
@@ -100,10 +101,14 @@ class AndroidVideoCapturer::FrameFactory : public cricket::VideoFrameFactory {
       int cropped_input_height,
       int output_width,
       int output_height) const override {
+    rtc::scoped_refptr<webrtc::VideoFrameBuffer> buffer(buffer_);
     if (buffer_->native_handle() != nullptr) {
-      // TODO(perkj): Implement CreateAliasedFrame properly for textures.
+      buffer =
+          static_cast<webrtc_jni::AndroidTextureBuffer*>(
+              buffer_.get())->CropAndScale(cropped_input_width,
+                  cropped_input_height, output_width, output_height);
       rtc::scoped_ptr<cricket::VideoFrame> frame(new cricket::WebRtcVideoFrame(
-          buffer_, input_frame->time_stamp, input_frame->rotation));
+          buffer, input_frame->time_stamp, input_frame->rotation));
       return frame.release();
     }
     return VideoFrameFactory::CreateAliasedFrame(input_frame,