Source code
Revision control
Copy as Markdown
Other Tools
/*
* 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 <AVFoundation/AVFoundation.h>
#include <string>
#include "device_info.h"
#include "device_info_objc.h"
#include "modules/video_capture/video_capture_impl.h"
#include "mozilla/StaticPrefs_media.h"
#include "objc_video_capture/device_info_avfoundation.h"
#include "rtc_base/logging.h"
using namespace mozilla;
using namespace webrtc;
using namespace videocapturemodule;
static NSArray* camera_presets = @[
AVCaptureSessionPreset352x288, AVCaptureSessionPreset640x480,
AVCaptureSessionPreset1280x720
];
#define IOS_UNSUPPORTED() \
RTC_LOG(LS_ERROR) << __FUNCTION__ \
<< " is not supported on the iOS platform."; \
return -1;
VideoCaptureModule::DeviceInfo* VideoCaptureImpl::CreateDeviceInfo() {
if (StaticPrefs::media_getusermedia_camera_macavf_enabled_AtStartup()) {
return new DeviceInfoAvFoundation();
}
return new DeviceInfoIos();
}
DeviceInfoIos::DeviceInfoIos() { this->Init(); }
DeviceInfoIos::~DeviceInfoIos() { [_captureInfo registerOwner:nil]; }
int32_t DeviceInfoIos::Init() {
_captureInfo = [[DeviceInfoIosObjC alloc] init];
[_captureInfo registerOwner:this];
// Fill in all device capabilities.
int deviceCount = [DeviceInfoIosObjC captureDeviceCount];
for (int i = 0; i < deviceCount; i++) {
AVCaptureDevice* avDevice = [DeviceInfoIosObjC captureDeviceForIndex:i];
VideoCaptureCapabilities capabilityVector;
for (NSString* preset in camera_presets) {
BOOL support = [avDevice supportsAVCaptureSessionPreset:preset];
if (support) {
VideoCaptureCapability capability =
[DeviceInfoIosObjC capabilityForPreset:preset];
capabilityVector.push_back(capability);
}
}
char deviceNameUTF8[256];
char deviceId[256];
int error = this->GetDeviceName(i, deviceNameUTF8, 256, deviceId, 256);
if (error) {
return error;
}
std::string deviceIdCopy(deviceId);
std::pair<std::string, VideoCaptureCapabilities> mapPair =
std::pair<std::string, VideoCaptureCapabilities>(deviceIdCopy,
capabilityVector);
_capabilitiesMap.insert(mapPair);
}
return 0;
}
uint32_t DeviceInfoIos::NumberOfDevices() {
return [DeviceInfoIosObjC captureDeviceCount];
}
int32_t DeviceInfoIos::GetDeviceName(
uint32_t deviceNumber, char* deviceNameUTF8, uint32_t deviceNameUTF8Length,
char* deviceUniqueIdUTF8, uint32_t deviceUniqueIdUTF8Length,
char* productUniqueIdUTF8, uint32_t productUniqueIdUTF8Length, pid_t* pid,
bool* deviceIsPlaceholder) {
if (deviceNumber >= NumberOfDevices()) {
return -1;
}
NSString* deviceName = [DeviceInfoIosObjC deviceNameForIndex:deviceNumber];
NSString* deviceUniqueId =
[DeviceInfoIosObjC deviceUniqueIdForIndex:deviceNumber];
strncpy(deviceNameUTF8, [deviceName UTF8String], deviceNameUTF8Length);
deviceNameUTF8[deviceNameUTF8Length - 1] = '\0';
strncpy(deviceUniqueIdUTF8, deviceUniqueId.UTF8String,
deviceUniqueIdUTF8Length);
deviceUniqueIdUTF8[deviceUniqueIdUTF8Length - 1] = '\0';
if (productUniqueIdUTF8) {
productUniqueIdUTF8[0] = '\0';
}
return 0;
}
int32_t DeviceInfoIos::NumberOfCapabilities(const char* deviceUniqueIdUTF8) {
int32_t numberOfCapabilities = 0;
std::string deviceUniqueId(deviceUniqueIdUTF8);
std::map<std::string, VideoCaptureCapabilities>::iterator it =
_capabilitiesMap.find(deviceUniqueId);
if (it != _capabilitiesMap.end()) {
numberOfCapabilities = it->second.size();
}
return numberOfCapabilities;
}
int32_t DeviceInfoIos::GetCapability(const char* deviceUniqueIdUTF8,
const uint32_t deviceCapabilityNumber,
VideoCaptureCapability& capability) {
std::string deviceUniqueId(deviceUniqueIdUTF8);
std::map<std::string, VideoCaptureCapabilities>::iterator it =
_capabilitiesMap.find(deviceUniqueId);
if (it != _capabilitiesMap.end()) {
VideoCaptureCapabilities deviceCapabilities = it->second;
if (deviceCapabilityNumber < deviceCapabilities.size()) {
VideoCaptureCapability cap;
cap = deviceCapabilities[deviceCapabilityNumber];
capability = cap;
return 0;
}
}
return -1;
}
int32_t DeviceInfoIos::DisplayCaptureSettingsDialogBox(
const char* deviceUniqueIdUTF8, const char* dialogTitleUTF8,
void* parentWindow, uint32_t positionX, uint32_t positionY) {
IOS_UNSUPPORTED();
}
int32_t DeviceInfoIos::GetOrientation(const char* deviceUniqueIdUTF8,
VideoRotation& orientation) {
if (strcmp(deviceUniqueIdUTF8, "Front Camera") == 0) {
orientation = kVideoRotation_0;
} else {
orientation = kVideoRotation_90;
}
return orientation;
}
int32_t DeviceInfoIos::CreateCapabilityMap(const char* deviceUniqueIdUTF8) {
std::string deviceName(deviceUniqueIdUTF8);
std::map<std::string, std::vector<VideoCaptureCapability>>::iterator it =
_capabilitiesMap.find(deviceName);
VideoCaptureCapabilities deviceCapabilities;
if (it != _capabilitiesMap.end()) {
_captureCapabilities = it->second;
return 0;
}
return -1;
}