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/*
* Copyright 2017 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 "RTCVideoCodecInfo+Private.h"
#include "api/video_codecs/scalability_mode.h"
#include "api/video_codecs/scalability_mode_helper.h"
#import "helpers/NSString+StdString.h"
@implementation RTC_OBJC_TYPE (RTCVideoCodecInfo)
(Private)
- (instancetype)initWithNativeSdpVideoFormat : (webrtc::SdpVideoFormat)format {
NSMutableDictionary* params = [NSMutableDictionary dictionary];
for (const auto& [key, value] : format.parameters) {
[params setObject:[NSString stringForStdString:value] forKey:[NSString stringForStdString:key]];
}
NSMutableArray<NSString*>* scalabilityModes =
[NSMutableArray arrayWithCapacity:format.scalability_modes.size()];
for (webrtc::ScalabilityMode mode : format.scalability_modes) {
[scalabilityModes addObject:[NSString stringForAbslStringView:ScalabilityModeToString(mode)]];
}
return [self initWithName:[NSString stringForStdString:format.name]
parameters:params
scalabilityModes:scalabilityModes];
}
- (webrtc::SdpVideoFormat)nativeSdpVideoFormat {
std::map<std::string, std::string> parameters;
for (NSString *paramKey in self.parameters.allKeys) {
std::string key = [NSString stdStringForString:paramKey];
std::string value = [NSString stdStringForString:self.parameters[paramKey]];
parameters[key] = value;
}
absl::InlinedVector<webrtc::ScalabilityMode, webrtc::kScalabilityModeCount> scalability_modes;
for (NSString* mode_name in self.scalabilityModes) {
std::optional<webrtc::ScalabilityMode> mode =
webrtc::ScalabilityModeStringToEnum([NSString stdStringForString:mode_name]);
if (mode.has_value()) {
scalability_modes.push_back(*mode);
}
}
return webrtc::SdpVideoFormat(
[NSString stdStringForString:self.name], parameters, scalability_modes);
}
@end