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Init max supported H.264 profile at runtime on iOS

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Bug: webrtc:9134, webrtc:7992
Change-Id: Id24c570bf3296298901f61ee817a3d7c3f8c6347
Reviewed-on: https://webrtc-review.googlesource.com/71560
Reviewed-by: Kári Helgason <kthelgason@webrtc.org>
Commit-Queue: Kári Helgason <kthelgason@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#23034}
This commit is contained in:
Yura Yaroshevich
2018-04-26 15:41:01 +03:00
committed by Commit Bot
parent f364cd7541
commit 0f77feae6d
9 changed files with 232 additions and 4 deletions
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55
sdk/objc/Framework/Classes/PeerConnection/RTCVideoCodec.mm
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@ -12,15 +12,70 @@
#import "NSString+StdString.h"
#import "RTCVideoCodec+Private.h"
#if defined(WEBRTC_IOS)
#import "UIDevice+H264Profile.h"
#endif
#import "WebRTC/RTCVideoCodecFactory.h"
#include "media/base/mediaconstants.h"
namespace {
NSString *MaxSupportedProfileLevelConstrainedHigh();
NSString *MaxSupportedProfileLevelConstrainedBaseline();
} // namespace
NSString *const kRTCVideoCodecVp8Name = @(cricket::kVp8CodecName);
NSString *const kRTCVideoCodecVp9Name = @(cricket::kVp9CodecName);
NSString *const kRTCVideoCodecH264Name = @(cricket::kH264CodecName);
NSString *const kRTCLevel31ConstrainedHigh = @"640c1f";
NSString *const kRTCLevel31ConstrainedBaseline = @"42e01f";
NSString *const kRTCMaxSupportedH264ProfileLevelConstrainedHigh =
MaxSupportedProfileLevelConstrainedHigh();
NSString *const kRTCMaxSupportedH264ProfileLevelConstrainedBaseline =
MaxSupportedProfileLevelConstrainedBaseline();
namespace {
#if defined(WEBRTC_IOS)
using namespace webrtc::H264;
NSString *MaxSupportedLevelForProfile(Profile profile) {
const rtc::Optional<ProfileLevelId> profileLevelId = [UIDevice maxSupportedH264Profile];
if (profileLevelId && profileLevelId->profile >= profile) {
const rtc::Optional<std::string> profileString =
ProfileLevelIdToString(ProfileLevelId(profile, profileLevelId->level));
if (profileString) {
return [NSString stringForStdString:*profileString];
}
}
return nil;
}
#endif
NSString *MaxSupportedProfileLevelConstrainedBaseline() {
#if defined(WEBRTC_IOS)
NSString *profile = MaxSupportedLevelForProfile(webrtc::H264::kProfileConstrainedBaseline);
if (profile != nil) {
return profile;
}
#endif
return kRTCLevel31ConstrainedBaseline;
}
NSString *MaxSupportedProfileLevelConstrainedHigh() {
#if defined(WEBRTC_IOS)
NSString *profile = MaxSupportedLevelForProfile(webrtc::H264::kProfileConstrainedHigh);
if (profile != nil) {
return profile;
}
#endif
return kRTCLevel31ConstrainedHigh;
}
} // namespace
@implementation RTCVideoCodecInfo