Android: Add support for cropping textures

webrtc/api/androidvideocapturer.cc

 /*
  *  Copyright 2015 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 70 matching lines @@
                            : frame.release();
   }
 
   cricket::VideoFrame* CreateAliasedFrame(
       const cricket::CapturedFrame* input_frame,
       int cropped_input_width,
       int cropped_input_height,
       int output_width,
       int output_height) const override {
     if (buffer_->native_handle() != nullptr) {
-      // TODO(perkj) Implement cropping.
-      RTC_CHECK_EQ(cropped_input_width, buffer_->width());
-      RTC_CHECK_EQ(cropped_input_height, buffer_->height());
       rtc::scoped_refptr<webrtc::VideoFrameBuffer> scaled_buffer(
           static_cast<webrtc_jni::AndroidTextureBuffer*>(buffer_.get())
-              ->ScaleAndRotate(output_width, output_height,
-                               apply_rotation_ ? input_frame->rotation :
-                                   webrtc::kVideoRotation_0));
+              ->CropScaleAndRotate(cropped_input_width, cropped_input_height,
+                                   output_width, output_height,
+                                   apply_rotation_ ? input_frame->rotation
+                                                   : webrtc::kVideoRotation_0));
       return new cricket::WebRtcVideoFrame(
           scaled_buffer, input_frame->time_stamp,
           apply_rotation_ ? webrtc::kVideoRotation_0 : input_frame->rotation);
     }
     return VideoFrameFactory::CreateAliasedFrame(input_frame,
                                                  cropped_input_width,
                                                  cropped_input_height,
                                                  output_width,
                                                  output_height);
   }
@@ skipping 89 matching lines @@
 
 bool AndroidVideoCapturer::GetBestCaptureFormat(
     const cricket::VideoFormat& desired,
     cricket::VideoFormat* best_format) {
   // Delegate this choice to VideoCapturer.startCapture().
   *best_format = desired;
   return true;
 }
 
 }  // namespace webrtc