fc7e874677
Formatting done via: git ls-files | grep -E '.*\.m$' | xargs clang-format -i After applying the command, I manually excluded Matlab .m files that I will handle separately. No-Iwyu: Includes didn't change and it isn't related to formatting Bug: webrtc:42225392 Change-Id: I40d11fd6b650ee0d90d92cbd6fc6aa6c78e1fea3 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/373887 Commit-Queue: Harald Alvestrand <hta@webrtc.org> Reviewed-by: Danil Chapovalov <danilchap@webrtc.org> Reviewed-by: Harald Alvestrand <hta@webrtc.org> Cr-Commit-Position: refs/heads/main@{#43706}
126 lines
3.7 KiB
Objective-C
126 lines
3.7 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 "ARDCaptureController.h"
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#import "sdk/objc/base/RTCLogging.h"
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#import "ARDSettingsModel.h"
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const Float64 kFramerateLimit = 30.0;
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@implementation ARDCaptureController {
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RTC_OBJC_TYPE(RTCCameraVideoCapturer) * _capturer;
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ARDSettingsModel *_settings;
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BOOL _usingFrontCamera;
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}
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- (instancetype)initWithCapturer:
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(RTC_OBJC_TYPE(RTCCameraVideoCapturer) *)capturer
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settings:(ARDSettingsModel *)settings {
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self = [super init];
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if (self) {
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_capturer = capturer;
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_settings = settings;
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_usingFrontCamera = YES;
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}
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return self;
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}
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- (void)startCapture {
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[self startCapture:nil];
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}
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- (void)startCapture:(void (^)(NSError *))completion {
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AVCaptureDevicePosition position = _usingFrontCamera ?
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AVCaptureDevicePositionFront :
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AVCaptureDevicePositionBack;
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AVCaptureDevice *device = [self findDeviceForPosition:position];
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AVCaptureDeviceFormat *format = [self selectFormatForDevice:device];
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if (format == nil) {
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RTCLogError(@"No valid formats for device %@", device);
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NSAssert(NO, @"");
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return;
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}
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NSInteger fps = [self selectFpsForFormat:format];
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[_capturer startCaptureWithDevice:device
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format:format
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fps:fps
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completionHandler:completion];
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}
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- (void)stopCapture {
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[_capturer stopCapture];
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}
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- (void)switchCamera {
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_usingFrontCamera = !_usingFrontCamera;
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[self startCapture:nil];
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}
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- (void)switchCamera:(void (^)(NSError *))completion {
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_usingFrontCamera = !_usingFrontCamera;
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[self startCapture:completion];
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}
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#pragma mark - Private
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- (AVCaptureDevice *)findDeviceForPosition:(AVCaptureDevicePosition)position {
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NSArray<AVCaptureDevice *> *captureDevices =
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[RTC_OBJC_TYPE(RTCCameraVideoCapturer) captureDevices];
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for (AVCaptureDevice *device in captureDevices) {
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if (device.position == position) {
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return device;
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}
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}
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return captureDevices[0];
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}
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- (AVCaptureDeviceFormat *)selectFormatForDevice:(AVCaptureDevice *)device {
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NSArray<AVCaptureDeviceFormat *> *formats =
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[RTC_OBJC_TYPE(RTCCameraVideoCapturer) supportedFormatsForDevice:device];
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int targetWidth = [_settings currentVideoResolutionWidthFromStore];
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int targetHeight = [_settings currentVideoResolutionHeightFromStore];
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AVCaptureDeviceFormat *selectedFormat = nil;
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int currentDiff = INT_MAX;
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for (AVCaptureDeviceFormat *format in formats) {
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CMVideoDimensions dimension =
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CMVideoFormatDescriptionGetDimensions(format.formatDescription);
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FourCharCode pixelFormat =
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CMFormatDescriptionGetMediaSubType(format.formatDescription);
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int diff = abs(targetWidth - dimension.width) +
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abs(targetHeight - dimension.height);
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if (diff < currentDiff) {
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selectedFormat = format;
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currentDiff = diff;
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} else if (diff == currentDiff &&
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pixelFormat == [_capturer preferredOutputPixelFormat]) {
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selectedFormat = format;
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}
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}
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return selectedFormat;
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}
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- (NSInteger)selectFpsForFormat:(AVCaptureDeviceFormat *)format {
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Float64 maxSupportedFramerate = 0;
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for (AVFrameRateRange *fpsRange in format.videoSupportedFrameRateRanges) {
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maxSupportedFramerate = fmax(maxSupportedFramerate, fpsRange.maxFrameRate);
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}
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return fmin(maxSupportedFramerate, kFramerateLimit);
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}
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@end
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