1/*
2 *  Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
3 *
4 *  Use of this source code is governed by a BSD-style license
5 *  that can be found in the LICENSE file in the root of the source
6 *  tree. An additional intellectual property rights grant can be found
7 *  in the file PATENTS.  All contributing project authors may
8 *  be found in the AUTHORS file in the root of the source tree.
9 */
10
11#if !defined(__has_feature) || !__has_feature(objc_arc)
12#error "This file requires ARC support."
13#endif
14
15#include "webrtc/modules/video_capture/ios/device_info_ios_objc.h"
16#include "webrtc/modules/video_capture/ios/rtc_video_capture_ios_objc.h"
17#include "webrtc/system_wrappers/include/ref_count.h"
18#include "webrtc/system_wrappers/include/trace.h"
19
20using namespace webrtc;
21using namespace videocapturemodule;
22
23VideoCaptureModule* VideoCaptureImpl::Create(const int32_t capture_id,
24                                             const char* deviceUniqueIdUTF8) {
25  return VideoCaptureIos::Create(capture_id, deviceUniqueIdUTF8);
26}
27
28VideoCaptureIos::VideoCaptureIos(const int32_t capture_id)
29    : VideoCaptureImpl(capture_id), is_capturing_(false), id_(capture_id) {
30  capability_.width = kDefaultWidth;
31  capability_.height = kDefaultHeight;
32  capability_.maxFPS = kDefaultFrameRate;
33  capture_device_ = nil;
34}
35
36VideoCaptureIos::~VideoCaptureIos() {
37  if (is_capturing_) {
38    [capture_device_ stopCapture];
39    capture_device_ = nil;
40  }
41}
42
43VideoCaptureModule* VideoCaptureIos::Create(const int32_t capture_id,
44                                            const char* deviceUniqueIdUTF8) {
45  if (!deviceUniqueIdUTF8[0]) {
46    return NULL;
47  }
48
49  RefCountImpl<VideoCaptureIos>* capture_module =
50      new RefCountImpl<VideoCaptureIos>(capture_id);
51
52  const int32_t name_length = strlen(deviceUniqueIdUTF8);
53  if (name_length > kVideoCaptureUniqueNameLength)
54    return NULL;
55
56  capture_module->_deviceUniqueId = new char[name_length + 1];
57  strncpy(capture_module->_deviceUniqueId, deviceUniqueIdUTF8, name_length + 1);
58  capture_module->_deviceUniqueId[name_length] = '\0';
59
60  capture_module->capture_device_ =
61      [[RTCVideoCaptureIosObjC alloc] initWithOwner:capture_module
62                                          captureId:capture_module->id_];
63  if (!capture_module->capture_device_) {
64    return NULL;
65  }
66
67  if (![capture_module->capture_device_ setCaptureDeviceByUniqueId:[
68              [NSString alloc] initWithCString:deviceUniqueIdUTF8
69                                      encoding:NSUTF8StringEncoding]]) {
70    return NULL;
71  }
72  return capture_module;
73}
74
75int32_t VideoCaptureIos::StartCapture(
76    const VideoCaptureCapability& capability) {
77  capability_ = capability;
78
79  if (![capture_device_ startCaptureWithCapability:capability]) {
80    return -1;
81  }
82
83  is_capturing_ = true;
84
85  return 0;
86}
87
88int32_t VideoCaptureIos::StopCapture() {
89  if (![capture_device_ stopCapture]) {
90    return -1;
91  }
92
93  is_capturing_ = false;
94  return 0;
95}
96
97bool VideoCaptureIos::CaptureStarted() { return is_capturing_; }
98
99int32_t VideoCaptureIos::CaptureSettings(VideoCaptureCapability& settings) {
100  settings = capability_;
101  settings.rawType = kVideoNV12;
102  return 0;
103}
104