5dfac33dfd
We missed to implement quality scaling in the original CL https://codereview.webrtc.org/2977213002/. This CL implements it. Note that the ObjC interface for scalingSettings is slightly different from the C++ interface in that we require explicit QP thresholds to turn quality scaling on, i.e. we don't provide default values. I think this is more modular as we want to move codec specific knowledge out from the WebRTC core. I would like to update the C++ webrtc::VideoEncoder interface to do the same in another CL. BUG=webrtc:7924 Review-Url: https://codereview.webrtc.org/2991123002 Cr-Commit-Position: refs/heads/master@{#19202}
72 lines
2.0 KiB
Plaintext
72 lines
2.0 KiB
Plaintext
/*
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* Copyright 2017 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#import "WebRTC/RTCVideoCodec.h"
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#import "NSString+StdString.h"
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#import "RTCVideoCodec+Private.h"
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#import "WebRTC/RTCVideoCodecFactory.h"
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@implementation RTCVideoCodecInfo
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@synthesize payload = _payload;
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@synthesize name = _name;
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@synthesize parameters = _parameters;
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- (instancetype)initWithPayload:(NSInteger)payload
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name:(NSString *)name
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parameters:(NSDictionary<NSString *, NSString *> *)parameters {
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if (self = [super init]) {
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_payload = payload;
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_name = name;
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_parameters = parameters;
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}
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return self;
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}
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- (instancetype)initWithNativeVideoCodec:(cricket::VideoCodec)videoCodec {
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NSMutableDictionary *params = [NSMutableDictionary dictionary];
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for (auto it = videoCodec.params.begin(); it != videoCodec.params.end(); ++it) {
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[params setObject:[NSString stringForStdString:it->second]
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forKey:[NSString stringForStdString:it->first]];
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}
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return [self initWithPayload:videoCodec.id
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name:[NSString stringForStdString:videoCodec.name]
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parameters:params];
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}
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- (cricket::VideoCodec)nativeVideoCodec {
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cricket::VideoCodec codec([NSString stdStringForString:_name]);
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for (NSString *paramKey in _parameters.allKeys) {
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codec.SetParam([NSString stdStringForString:paramKey],
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[NSString stdStringForString:_parameters[paramKey]]);
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}
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return codec;
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}
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@end
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@implementation RTCVideoEncoderQpThresholds
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@synthesize low = _low;
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@synthesize high = _high;
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- (instancetype)initWithThresholdsLow:(NSInteger)low high:(NSInteger)high {
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if (self = [super init]) {
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_low = low;
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_high = high;
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}
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return self;
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}
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@end
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