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/*
* 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.
*/
#import "RTCMediaConstraints+Private.h"
#import "helpers/NSString+StdString.h"
#include <memory>
NSString *const kRTCMediaConstraintsAudioNetworkAdaptorConfig =
@(webrtc::MediaConstraints::kAudioNetworkAdaptorConfig);
NSString *const kRTCMediaConstraintsIceRestart = @(webrtc::MediaConstraints::kIceRestart);
NSString *const kRTCMediaConstraintsOfferToReceiveAudio =
@(webrtc::MediaConstraints::kOfferToReceiveAudio);
NSString *const kRTCMediaConstraintsOfferToReceiveVideo =
@(webrtc::MediaConstraints::kOfferToReceiveVideo);
NSString *const kRTCMediaConstraintsVoiceActivityDetection =
@(webrtc::MediaConstraints::kVoiceActivityDetection);
NSString *const kRTCMediaConstraintsValueTrue = @(webrtc::MediaConstraints::kValueTrue);
NSString *const kRTCMediaConstraintsValueFalse = @(webrtc::MediaConstraints::kValueFalse);
@implementation RTC_OBJC_TYPE (RTCMediaConstraints) {
NSDictionary<NSString *, NSString *> *_mandatory;
NSDictionary<NSString *, NSString *> *_optional;
}
- (instancetype)initWithMandatoryConstraints:
(NSDictionary<NSString *, NSString *> *)mandatory
optionalConstraints:
(NSDictionary<NSString *, NSString *> *)optional {
self = [super init];
if (self) {
_mandatory = [[NSDictionary alloc] initWithDictionary:mandatory
copyItems:YES];
_optional = [[NSDictionary alloc] initWithDictionary:optional
copyItems:YES];
}
return self;
}
- (NSString *)description {
return [NSString
stringWithFormat:@"RTC_OBJC_TYPE(RTCMediaConstraints):\n%@\n%@", _mandatory, _optional];
}
#pragma mark - Private
- (std::unique_ptr<webrtc::MediaConstraints>)nativeConstraints {
webrtc::MediaConstraints::Constraints mandatory =
[[self class] nativeConstraintsForConstraints:_mandatory];
webrtc::MediaConstraints::Constraints optional =
[[self class] nativeConstraintsForConstraints:_optional];
webrtc::MediaConstraints *nativeConstraints =
new webrtc::MediaConstraints(mandatory, optional);
return std::unique_ptr<webrtc::MediaConstraints>(nativeConstraints);
}
+ (webrtc::MediaConstraints::Constraints)nativeConstraintsForConstraints:
(NSDictionary<NSString *, NSString *> *)constraints {
webrtc::MediaConstraints::Constraints nativeConstraints;
for (NSString *key in constraints) {
NSAssert([key isKindOfClass:[NSString class]],
@"%@ is not an NSString.", key);
NSString *value = [constraints objectForKey:key];
NSAssert([value isKindOfClass:[NSString class]],
@"%@ is not an NSString.", value);
if ([kRTCMediaConstraintsAudioNetworkAdaptorConfig isEqualToString:key]) {
// This value is base64 encoded.
NSData *charData = [[NSData alloc] initWithBase64EncodedString:value options:0];
std::string configValue =
std::string(reinterpret_cast<const char *>(charData.bytes), charData.length);
nativeConstraints.push_back(webrtc::MediaConstraints::Constraint(key.stdString, configValue));
} else {
nativeConstraints.push_back(
webrtc::MediaConstraints::Constraint(key.stdString, value.stdString));
}
}
return nativeConstraints;
}
@end