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1d4c152a38
This is a reland of 30915a742d
Original change's description:
> Simple Default ObjC video codec factories.
>
> Move the simple video encoder/decoder factory from AppRTCMobile into the
> public API so users who don't have special requirements for video codecs
> can easily get started.
>
> Also clean up the API a little.
>
> This CL replaces the more flexible default factories in
> https://webrtc-review.googlesource.com/c/src/+/7741 and clients that
> want to implement their own codecs will have to supply their own
> encoder/decoder factories as well. The benefits of the approach in
> this CL are a simpler API and less effects on the rest of the code.
>
> Bug: None
> Change-Id: I4ed94090d778b4fc38b49864de1d4de4ff125d6a
> Reviewed-on: https://webrtc-review.googlesource.com/15141
> Reviewed-by: Kári Helgason <kthelgason@webrtc.org>
> Reviewed-by: Magnus Jedvert <magjed@webrtc.org>
> Commit-Queue: Anders Carlsson <andersc@webrtc.org>
> Cr-Commit-Position: refs/heads/master@{#20441}
Bug: None
Change-Id: If0910cc540dc835dfec4eeb5bea527d88482d110
Reviewed-on: https://webrtc-review.googlesource.com/16780
Reviewed-by: Magnus Jedvert <magjed@webrtc.org>
Commit-Queue: Anders Carlsson <andersc@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#20476}
74 lines
2.7 KiB
Objective-C
74 lines
2.7 KiB
Objective-C
/*
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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/RTCVideoCodecFactory.h"
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#import "WebRTC/RTCVideoCodec.h"
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#import "WebRTC/RTCVideoCodecH264.h"
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#import "WebRTC/RTCVideoEncoderVP8.h"
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#import "WebRTC/RTCVideoEncoderVP9.h"
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@implementation RTCDefaultVideoEncoderFactory
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@synthesize preferredCodec;
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+ (NSArray<RTCVideoCodecInfo *> *)supportedCodecs {
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NSDictionary<NSString *, NSString *> *constrainedHighParams = @{
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@"profile-level-id" : kRTCLevel31ConstrainedHigh,
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@"level-asymmetry-allowed" : @"1",
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@"packetization-mode" : @"1",
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};
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RTCVideoCodecInfo *constrainedHighInfo =
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[[RTCVideoCodecInfo alloc] initWithName:kRTCVideoCodecH264Name
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parameters:constrainedHighParams];
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NSDictionary<NSString *, NSString *> *constrainedBaselineParams = @{
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@"profile-level-id" : kRTCLevel31ConstrainedBaseline,
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@"level-asymmetry-allowed" : @"1",
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@"packetization-mode" : @"1",
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};
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RTCVideoCodecInfo *constrainedBaselineInfo =
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[[RTCVideoCodecInfo alloc] initWithName:kRTCVideoCodecH264Name
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parameters:constrainedBaselineParams];
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RTCVideoCodecInfo *vp8Info = [[RTCVideoCodecInfo alloc] initWithName:kRTCVideoCodecVp8Name];
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RTCVideoCodecInfo *vp9Info = [[RTCVideoCodecInfo alloc] initWithName:kRTCVideoCodecVp9Name];
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return @[ constrainedHighInfo, constrainedBaselineInfo, vp8Info, vp9Info ];
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}
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- (id<RTCVideoEncoder>)createEncoder:(RTCVideoCodecInfo *)info {
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if ([info.name isEqualToString:kRTCVideoCodecH264Name]) {
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return [[RTCVideoEncoderH264 alloc] initWithCodecInfo:info];
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} else if ([info.name isEqualToString:kRTCVideoCodecVp8Name]) {
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return [RTCVideoEncoderVP8 vp8Encoder];
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} else if ([info.name isEqualToString:kRTCVideoCodecVp9Name]) {
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return [RTCVideoEncoderVP9 vp9Encoder];
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}
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return nil;
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}
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- (NSArray<RTCVideoCodecInfo *> *)supportedCodecs {
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NSMutableArray<RTCVideoCodecInfo *> *codecs = [[[self class] supportedCodecs] mutableCopy];
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NSMutableArray<RTCVideoCodecInfo *> *orderedCodecs = [NSMutableArray array];
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NSUInteger index = [codecs indexOfObject:self.preferredCodec];
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if (index != NSNotFound) {
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[orderedCodecs addObject:[codecs objectAtIndex:index]];
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[codecs removeObjectAtIndex:index];
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}
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[orderedCodecs addObjectsFromArray:codecs];
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return [orderedCodecs copy];
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}
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@end
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