Move RTCAVFoundationCapturer to webrtc/api/objc.

webrtc/api/objc/avfoundationvideocapturer.mm

 /*
- * libjingle
- * Copyright 2015 Google Inc.
+ *  Copyright 2015 The WebRTC project authors. All Rights Reserved.
  *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- *  1. Redistributions of source code must retain the above copyright notice,
- *     this list of conditions and the following disclaimer.
- *  2. Redistributions in binary form must reproduce the above copyright notice,
- *     this list of conditions and the following disclaimer in the documentation
- *     and/or other materials provided with the distribution.
- *  3. The name of the author may not be used to endorse or promote products
- *     derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
- * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
- * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *  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.
  */
 
-#include "talk/app/webrtc/objc/avfoundationvideocapturer.h"
+#include "webrtc/api/objc/avfoundationvideocapturer.h"
 
 #include "webrtc/base/bind.h"
 
 #import <AVFoundation/AVFoundation.h>
 #import <Foundation/Foundation.h>
 #import <UIKit/UIKit.h>
 
 #import "webrtc/base/objc/RTCDispatcher.h"
 
 // TODO(tkchin): support other formats.
 static NSString* const kDefaultPreset = AVCaptureSessionPreset640x480;
 static cricket::VideoFormat const kDefaultFormat =
     cricket::VideoFormat(640,
                          480,
                          cricket::VideoFormat::FpsToInterval(30),
                          cricket::FOURCC_NV12);
 
 // This class used to capture frames using AVFoundation APIs on iOS. It is meant
 // to be owned by an instance of AVFoundationVideoCapturer. The reason for this
 // because other webrtc objects own cricket::VideoCapturer, which is not
 // ref counted. To prevent bad behavior we do not expose this class directly.
 @interface RTCAVFoundationVideoCapturerInternal : NSObject
     <AVCaptureVideoDataOutputSampleBufferDelegate>
 
-@property(nonatomic, readonly) AVCaptureSession* captureSession;
+@property(nonatomic, readonly) AVCaptureSession *captureSession;
 @property(nonatomic, readonly) BOOL isRunning;
 @property(nonatomic, assign) BOOL useBackCamera;  // Defaults to NO.
 
 // We keep a pointer back to AVFoundationVideoCapturer to make callbacks on it
 // when we receive frames. This is safe because this object should be owned by
 // it.
-- (instancetype)initWithCapturer:(webrtc::AVFoundationVideoCapturer*)capturer;
+- (instancetype)initWithCapturer:(webrtc::AVFoundationVideoCapturer *)capturer;
 - (void)startCaptureAsync;
 - (void)stopCaptureAsync;
 
 @end
 
 @implementation RTCAVFoundationVideoCapturerInternal {
   // Keep pointers to inputs for convenience.
-  AVCaptureDeviceInput* _frontDeviceInput;
-  AVCaptureDeviceInput* _backDeviceInput;
-  AVCaptureVideoDataOutput* _videoOutput;
+  AVCaptureDeviceInput *_frontDeviceInput;
+  AVCaptureDeviceInput *_backDeviceInput;
+  AVCaptureVideoDataOutput *_videoOutput;
   // The cricket::VideoCapturer that owns this class. Should never be NULL.
-  webrtc::AVFoundationVideoCapturer* _capturer;
+  webrtc::AVFoundationVideoCapturer *_capturer;
   BOOL _orientationHasChanged;
 }
 
 @synthesize captureSession = _captureSession;
 @synthesize useBackCamera = _useBackCamera;
 @synthesize isRunning = _isRunning;
 
-- (instancetype)initWithCapturer:(webrtc::AVFoundationVideoCapturer*)capturer {
+- (instancetype)initWithCapturer:(webrtc::AVFoundationVideoCapturer *)capturer {
   NSParameterAssert(capturer);
   if (self = [super init]) {
     _capturer = capturer;
     if (![self setupCaptureSession]) {
       return nil;
     }
-    NSNotificationCenter* center = [NSNotificationCenter defaultCenter];
+    NSNotificationCenter *center = [NSNotificationCenter defaultCenter];
     [center addObserver:self
                selector:@selector(deviceOrientationDidChange:)
                    name:UIDeviceOrientationDidChangeNotification
                  object:nil];
     [center addObserverForName:AVCaptureSessionRuntimeErrorNotification
                         object:nil
                          queue:nil
-                    usingBlock:^(NSNotification* notification) {
+                    usingBlock:^(NSNotification *notification) {
       NSLog(@"Capture session error: %@", notification.userInfo);
     }];
   }
   return self;
 }
 
 - (void)dealloc {
   [self stopCaptureAsync];
   [[NSNotificationCenter defaultCenter] removeObserver:self];
   _capturer = nullptr;
@@ skipping 30 matching lines @@
   [RTCDispatcher dispatchAsyncOnType:RTCDispatcherTypeCaptureSession
                                block:^{
     [session stopRunning];
   }];
   [[UIDevice currentDevice] endGeneratingDeviceOrientationNotifications];
   _isRunning = NO;
 }
 
 #pragma mark AVCaptureVideoDataOutputSampleBufferDelegate
 
-- (void)captureOutput:(AVCaptureOutput*)captureOutput
+- (void)captureOutput:(AVCaptureOutput *)captureOutput
     didOutputSampleBuffer:(CMSampleBufferRef)sampleBuffer
-           fromConnection:(AVCaptureConnection*)connection {
+           fromConnection:(AVCaptureConnection *)connection {
   NSParameterAssert(captureOutput == _videoOutput);
   if (!_isRunning) {
     return;
   }
   _capturer->CaptureSampleBuffer(sampleBuffer);
 }
 
-- (void)captureOutput:(AVCaptureOutput*)captureOutput
+- (void)captureOutput:(AVCaptureOutput *)captureOutput
     didDropSampleBuffer:(CMSampleBufferRef)sampleBuffer
-    fromConnection:(AVCaptureConnection*)connection {
+    fromConnection:(AVCaptureConnection *)connection {
   NSLog(@"Dropped sample buffer.");
 }
 
 #pragma mark - Private
 
 - (BOOL)setupCaptureSession {
   _captureSession = [[AVCaptureSession alloc] init];
 #if defined(__IPHONE_7_0) && __IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_7_0
-  NSString* version = [[UIDevice currentDevice] systemVersion];
+  NSString *version = [[UIDevice currentDevice] systemVersion];
   if ([version integerValue] >= 7) {
     _captureSession.usesApplicationAudioSession = NO;
   }
 #endif
   if (![_captureSession canSetSessionPreset:kDefaultPreset]) {
     NSLog(@"Default video capture preset unsupported.");
     return NO;
   }
   _captureSession.sessionPreset = kDefaultPreset;
 
   // Make the capturer output NV12. Ideally we want I420 but that's not
   // currently supported on iPhone / iPad.
   _videoOutput = [[AVCaptureVideoDataOutput alloc] init];
   _videoOutput.videoSettings = @{
-    (NSString*)kCVPixelBufferPixelFormatTypeKey :
+    (NSString *)kCVPixelBufferPixelFormatTypeKey :
         @(kCVPixelFormatType_420YpCbCr8BiPlanarFullRange)
   };
   _videoOutput.alwaysDiscardsLateVideoFrames = NO;
   [_videoOutput setSampleBufferDelegate:self
                                   queue:dispatch_get_main_queue()];
   if (![_captureSession canAddOutput:_videoOutput]) {
     NSLog(@"Default video capture output unsupported.");
     return NO;
   }
   [_captureSession addOutput:_videoOutput];
 
   // Find the capture devices.
-  AVCaptureDevice* frontCaptureDevice = nil;
-  AVCaptureDevice* backCaptureDevice = nil;
-  for (AVCaptureDevice* captureDevice in
+  AVCaptureDevice *frontCaptureDevice = nil;
+  AVCaptureDevice *backCaptureDevice = nil;
+  for (AVCaptureDevice *captureDevice in
        [AVCaptureDevice devicesWithMediaType:AVMediaTypeVideo]) {
     if (captureDevice.position == AVCaptureDevicePositionBack) {
       backCaptureDevice = captureDevice;
     }
     if (captureDevice.position == AVCaptureDevicePositionFront) {
       frontCaptureDevice = captureDevice;
     }
   }
   if (!frontCaptureDevice || !backCaptureDevice) {
     NSLog(@"Failed to get capture devices.");
     return NO;
   }
 
   // Set up the session inputs.
-  NSError* error = nil;
+  NSError *error = nil;
   _frontDeviceInput =
       [AVCaptureDeviceInput deviceInputWithDevice:frontCaptureDevice
                                             error:&error];
   if (!_frontDeviceInput) {
     NSLog(@"Failed to get capture device input: %@",
           error.localizedDescription);
     return NO;
   }
   _backDeviceInput =
       [AVCaptureDeviceInput deviceInputWithDevice:backCaptureDevice
                                             error:&error];
   if (!_backDeviceInput) {
     NSLog(@"Failed to get capture device input: %@",
           error.localizedDescription);
     return NO;
   }
 
   // Add the inputs.
   if (![_captureSession canAddInput:_frontDeviceInput] ||
       ![_captureSession canAddInput:_backDeviceInput]) {
     NSLog(@"Session does not support capture inputs.");
     return NO;
   }
   [self updateSessionInput];
 
   return YES;
 }
 
-- (void)deviceOrientationDidChange:(NSNotification*)notification {
+- (void)deviceOrientationDidChange:(NSNotification *)notification {
   _orientationHasChanged = YES;
   [self updateOrientation];
 }
 
 - (void)updateOrientation {
-  AVCaptureConnection* connection =
+  AVCaptureConnection *connection =
       [_videoOutput connectionWithMediaType:AVMediaTypeVideo];
   if (!connection.supportsVideoOrientation) {
     // TODO(tkchin): set rotation bit on frames.
     return;
   }
   AVCaptureVideoOrientation orientation = AVCaptureVideoOrientationPortrait;
   switch ([UIDevice currentDevice].orientation) {
     case UIDeviceOrientationPortrait:
       orientation = AVCaptureVideoOrientationPortrait;
       break;
@@ skipping 13 matching lines @@
         connection.videoOrientation = orientation;
       }
       return;
   }
   connection.videoOrientation = orientation;
 }
 
 - (void)updateSessionInput {
   // Update the current session input to match what's stored in _useBackCamera.
   [_captureSession beginConfiguration];
-  AVCaptureDeviceInput* oldInput = _backDeviceInput;
-  AVCaptureDeviceInput* newInput = _frontDeviceInput;
+  AVCaptureDeviceInput *oldInput = _backDeviceInput;
+  AVCaptureDeviceInput *newInput = _frontDeviceInput;
   if (_useBackCamera) {
     oldInput = _frontDeviceInput;
     newInput = _backDeviceInput;
   }
   // Ok to remove this even if it's not attached. Will be no-op.
   [_captureSession removeInput:oldInput];
   [_captureSession addInput:newInput];
   [self updateOrientation];
   [_captureSession commitConfiguration];
 }
@@ skipping 83 matching lines @@
 
   // Base address must be unlocked to access frame data.
   CVOptionFlags lockFlags = kCVPixelBufferLock_ReadOnly;
   CVReturn ret = CVPixelBufferLockBaseAddress(imageBuffer, lockFlags);
   if (ret != kCVReturnSuccess) {
     return;
   }
 
   static size_t const kYPlaneIndex = 0;
   static size_t const kUVPlaneIndex = 1;
-  uint8_t* yPlaneAddress =
-      (uint8_t*)CVPixelBufferGetBaseAddressOfPlane(imageBuffer, kYPlaneIndex);
+  uint8_t *yPlaneAddress =
+      (uint8_t *)CVPixelBufferGetBaseAddressOfPlane(imageBuffer, kYPlaneIndex);
   size_t yPlaneHeight =
       CVPixelBufferGetHeightOfPlane(imageBuffer, kYPlaneIndex);
   size_t yPlaneWidth =
       CVPixelBufferGetWidthOfPlane(imageBuffer, kYPlaneIndex);
   size_t yPlaneBytesPerRow =
       CVPixelBufferGetBytesPerRowOfPlane(imageBuffer, kYPlaneIndex);
   size_t uvPlaneHeight =
       CVPixelBufferGetHeightOfPlane(imageBuffer, kUVPlaneIndex);
   size_t uvPlaneBytesPerRow =
       CVPixelBufferGetBytesPerRowOfPlane(imageBuffer, kUVPlaneIndex);
   size_t frameSize =
       yPlaneBytesPerRow * yPlaneHeight + uvPlaneBytesPerRow * uvPlaneHeight;
 
   // Sanity check assumption that planar bytes are contiguous.
-  uint8_t* uvPlaneAddress =
-      (uint8_t*)CVPixelBufferGetBaseAddressOfPlane(imageBuffer, kUVPlaneIndex);
+  uint8_t *uvPlaneAddress =
+      (uint8_t *)CVPixelBufferGetBaseAddressOfPlane(imageBuffer, kUVPlaneIndex);
   RTC_DCHECK(
       uvPlaneAddress == yPlaneAddress + yPlaneHeight * yPlaneBytesPerRow);
 
   // Stuff data into a cricket::CapturedFrame.
   int64_t currentTime = rtc::TimeNanos();
   cricket::CapturedFrame frame;
   frame.width = yPlaneWidth;
   frame.height = yPlaneHeight;
   frame.pixel_width = 1;
   frame.pixel_height = 1;
   frame.fourcc = static_cast<uint32_t>(cricket::FOURCC_NV12);
   frame.time_stamp = currentTime;
   frame.data = yPlaneAddress;
   frame.data_size = frameSize;
 
   if (_startThread->IsCurrent()) {
     SignalFrameCaptured(this, &frame);
   } else {
     _startThread->Invoke<void>(
         rtc::Bind(&AVFoundationVideoCapturer::SignalFrameCapturedOnStartThread,
                   this, &frame));
   }
   CVPixelBufferUnlockBaseAddress(imageBuffer, lockFlags);
 }
 
 void AVFoundationVideoCapturer::SignalFrameCapturedOnStartThread(
-    const cricket::CapturedFrame* frame) {
+    const cricket::CapturedFrame *frame) {
   RTC_DCHECK(_startThread->IsCurrent());
   // This will call a superclass method that will perform the frame conversion
   // to I420.
   SignalFrameCaptured(this, frame);
 }
 
 }  // namespace webrtc