Reland of Unify the macOS and iOS capturer implementations

webrtc/modules/video_capture/ios/video_capture_ios.mm

Index: webrtc/modules/video_capture/ios/video_capture_ios.mm
diff --git a/webrtc/modules/video_capture/ios/video_capture_ios.mm b/webrtc/modules/video_capture/ios/video_capture_ios.mm
deleted file mode 100644
index 7a1f17bd13f75290a4439f26a2a331e843bfe298..0000000000000000000000000000000000000000
--- a/webrtc/modules/video_capture/ios/video_capture_ios.mm
+++ /dev/null
@@ -1,106 +0,0 @@
-/*
- *  Copyright (c) 2013 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.
- */
-
-#if !defined(__has_feature) || !__has_feature(objc_arc)
-#error "This file requires ARC support."
-#endif
-
-#include "webrtc/base/refcount.h"
-#include "webrtc/base/scoped_ref_ptr.h"
-#include "webrtc/modules/video_capture/ios/device_info_ios_objc.h"
-#include "webrtc/modules/video_capture/ios/rtc_video_capture_ios_objc.h"
-#include "webrtc/system_wrappers/include/trace.h"
-
-using namespace webrtc;
-using namespace videocapturemodule;
-
-rtc::scoped_refptr<VideoCaptureModule> VideoCaptureImpl::Create(
-    const int32_t capture_id,
-    const char* deviceUniqueIdUTF8) {
-  return VideoCaptureIos::Create(capture_id, deviceUniqueIdUTF8);
-}
-
-VideoCaptureIos::VideoCaptureIos(const int32_t capture_id)
-    : VideoCaptureImpl(capture_id), is_capturing_(false), id_(capture_id) {
-  capability_.width = kDefaultWidth;
-  capability_.height = kDefaultHeight;
-  capability_.maxFPS = kDefaultFrameRate;
-  capture_device_ = nil;
-}
-
-VideoCaptureIos::~VideoCaptureIos() {
-  if (is_capturing_) {
-    [capture_device_ stopCapture];
-    capture_device_ = nil;
-  }
-}
-
-rtc::scoped_refptr<VideoCaptureModule> VideoCaptureIos::Create(
-    const int32_t capture_id,
-    const char* deviceUniqueIdUTF8) {
-  if (!deviceUniqueIdUTF8[0]) {
-    return NULL;
-  }
-
-  rtc::scoped_refptr<VideoCaptureIos> capture_module(
-      new rtc::RefCountedObject<VideoCaptureIos>(capture_id));
-
-  const int32_t name_length = strlen(deviceUniqueIdUTF8);
-  if (name_length > kVideoCaptureUniqueNameLength)
-    return nullptr;
-
-  capture_module->_deviceUniqueId = new char[name_length + 1];
-  strncpy(capture_module->_deviceUniqueId, deviceUniqueIdUTF8, name_length + 1);
-  capture_module->_deviceUniqueId[name_length] = '\0';
-
-  capture_module->capture_device_ =
-      [[RTCVideoCaptureIosObjC alloc] initWithOwner:capture_module
-                                          captureId:capture_module->id_];
-  if (!capture_module->capture_device_) {
-    return nullptr;
-  }
-
-  if (![capture_module->capture_device_ setCaptureDeviceByUniqueId:[
-              [NSString alloc] initWithCString:deviceUniqueIdUTF8
-                                      encoding:NSUTF8StringEncoding]]) {
-    return nullptr;
-  }
-  return capture_module;
-}
-
-int32_t VideoCaptureIos::StartCapture(
-    const VideoCaptureCapability& capability) {
-  capability_ = capability;
-
-  if (![capture_device_ startCaptureWithCapability:capability]) {
-    return -1;
-  }
-
-  is_capturing_ = true;
-
-  return 0;
-}
-
-int32_t VideoCaptureIos::StopCapture() {
-  if (![capture_device_ stopCapture]) {
-    return -1;
-  }
-
-  is_capturing_ = false;
-  return 0;
-}
-
-bool VideoCaptureIos::CaptureStarted() { return is_capturing_; }
-
-int32_t VideoCaptureIos::CaptureSettings(VideoCaptureCapability& settings) {
-  settings = capability_;
-  settings.rawType = kVideoNV12;
-  return 0;
-}