a0349c138d
Initial CL for this effort, with a working RTCVideoEncoder/Decoder for H264
(wrapping the VideoToolbox codec).
Some notes / things left to do:
- There are some hard-coded references to codec types that are supported by
webrtc::VideoCodec, cricket::VideoCodec, webrtc::CodecSpecificInfo etc
since we need to convert to/from these types in ObjCVideoEncoder/Decoder.
These types would need to be more codec agnostic to avoid this.
- Most interfaces are borrowed from the design document for injectable
codecs in Android. Some data in the corresponding C++ classes is discarded
when converting to the Obj-C version, since it has fewer fields. I have not
verified whether all data that we do keep is needed, or whether we might be
losing anything useful in these conversions.
- Implement the VideoToolbox codec code directly in the RTCVideoEncoderH264
classes, instead of wrapping webrtc::H264VideoToolboxEncoder / decoder.
Eliminates converting between ObjC/C++ types outside the ObjCVideoEncoder/
Decoder wrapper classes.
- List the injected codec factory's supported codecs in the list of codecs in
AppRTCMobile.
BUG=webrtc:7924
R=magjed@webrtc.org
Review-Url: https://codereview.webrtc.org/2966023002 .
Cr-Commit-Position: refs/heads/master@{#18928}
62 lines
2.5 KiB
Plaintext
62 lines
2.5 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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#include "webrtc/modules/include/module_common_types.h"
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@implementation RTCRtpFragmentationHeader
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@synthesize fragmentationOffset = _fragmentationOffset;
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@synthesize fragmentationLength = _fragmentationLength;
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@synthesize fragmentationTimeDiff = _fragmentationTimeDiff;
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@synthesize fragmentationPlType = _fragmentationPlType;
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- (instancetype)initWithFragmentationHeader:
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(const webrtc::RTPFragmentationHeader *__nullable)fragmentationHeader {
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if (self = [super init]) {
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if (fragmentationHeader) {
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int count = fragmentationHeader->fragmentationVectorSize;
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NSMutableArray *offsets = [NSMutableArray array];
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NSMutableArray *lengths = [NSMutableArray array];
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NSMutableArray *timeDiffs = [NSMutableArray array];
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NSMutableArray *plTypes = [NSMutableArray array];
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for (int i = 0; i < count; ++i) {
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[offsets addObject:@(fragmentationHeader->fragmentationOffset[i])];
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[lengths addObject:@(fragmentationHeader->fragmentationLength[i])];
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[timeDiffs addObject:@(fragmentationHeader->fragmentationTimeDiff[i])];
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[plTypes addObject:@(fragmentationHeader->fragmentationPlType[i])];
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}
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_fragmentationOffset = [offsets copy];
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_fragmentationLength = [lengths copy];
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_fragmentationTimeDiff = [timeDiffs copy];
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_fragmentationPlType = [plTypes copy];
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}
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}
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return self;
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}
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- (webrtc::RTPFragmentationHeader *)toCpp {
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webrtc::RTPFragmentationHeader *fragmentationHeader = new webrtc::RTPFragmentationHeader;
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fragmentationHeader->VerifyAndAllocateFragmentationHeader(_fragmentationOffset.count);
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for (NSUInteger i = 0; i < _fragmentationOffset.count; ++i) {
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fragmentationHeader->fragmentationOffset[i] = (size_t)_fragmentationOffset[i].unsignedIntValue;
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fragmentationHeader->fragmentationLength[i] = (size_t)_fragmentationLength[i].unsignedIntValue;
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fragmentationHeader->fragmentationTimeDiff[i] =
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(uint16_t)_fragmentationOffset[i].unsignedIntValue;
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fragmentationHeader->fragmentationPlType[i] = (uint8_t)_fragmentationOffset[i].unsignedIntValue;
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}
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return fragmentationHeader;
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}
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@end
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