webrtc_m130/sdk/objc/helpers/AVCaptureSession+DevicePosition.h

/*
 *  Copyright 2017 The WebRTC project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree. An additional intellectual property rights grant can be found
 *  in the file PATENTS.  All contributing project authors may
 *  be found in the AUTHORS file in the root of the source tree.
 */

#import <AVFoundation/AVFoundation.h>
#import <CoreMedia/CoreMedia.h>

NS_ASSUME_NONNULL_BEGIN

@interface AVCaptureSession (DevicePosition)

// Check the image's EXIF for the camera the image came from.
+ (AVCaptureDevicePosition)devicePositionForSampleBuffer:(CMSampleBufferRef)sampleBuffer;

@end

NS_ASSUME_NONNULL_END
[iOS] Fix incorrectly oriented frames when rapidly switching between cameras. During a call, with both phones in horizontal or landscape mode, rapidly switching between the front and back camera sometimes causes the remote video to be shown upside down. There seems to be a race condition when setting the rotation based on the orientation of the device and which camera we're using. So use the active input's camera to check instead of the client state. BUG=webrtc:7898 Review-Url: https://codereview.webrtc.org/2964703002 Cr-Commit-Position: refs/heads/master@{#19139} 2017-07-25 09:35:55 -07:00			`/*`
			`* Copyright 2017 The WebRTC project authors. All Rights Reserved.`
			`*`
			`* Use of this source code is governed by a BSD-style license`
			`* that can be found in the LICENSE file in the root of the source`
			`* tree. An additional intellectual property rights grant can be found`
			`* in the file PATENTS. All contributing project authors may`
			`* be found in the AUTHORS file in the root of the source tree.`
			`*/`

			`#import <AVFoundation/AVFoundation.h>`
			`#import <CoreMedia/CoreMedia.h>`

			`NS_ASSUME_NONNULL_BEGIN`

Revert "Add a prefix for objc category." This reverts commit 181ea6e414c5982015ce161e6368120be3658ec4. Reason for revert: Breaks downstream project. Kári will help to land it next week. Original change's description: > Add a prefix for objc category. > > According to the Google Objective-C style [1], category names should > start with an appropriate prefix. WebRTC has some category definitions > for system interfaces, but it doesn't use prefixes. > > $ otool -ov WebRTC.framework/WebRTC \| grep -E "^[0-9a-z]{16} 0x[0-9a-z]+ __OBJC_._CATEGORY" \| grep -v "_RTC" > 0000000002160840 0x217c3c0 __OBJC_$_CATEGORY_UIDevice_$_H264Profile > 0000000002160850 0x21808b8 __OBJC_$_CATEGORY_AVCaptureSession_$_DevicePosition > 0000000002160858 0x2180968 __OBJC_$_CATEGORY_NSString_$_StdString > 0000000002160860 0x21809c8 __OBJC_$_CATEGORY_NSString_$_AbslStringView > > To avoid conflicts, prefix the names and methods of those categories. > Also remove sdk/objc/Framework/Classes/Common/NSString+StdString.h as > it is not used by any other files. > > [1] https://google.github.io/styleguide/objcguide.html#category-naming > > Bug: webrtc:13884 > Change-Id: I2cf2742af198ab4e0bfb15c0476d72971e50ceee > Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/262341 > Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org> > Reviewed-by: Kári Helgason <kthelgason@webrtc.org> > Commit-Queue: Daniel.L (Byoungchan) Lee <daniel.l@hpcnt.com> > Reviewed-by: Artem Titov <titovartem@webrtc.org> > Cr-Commit-Position: refs/heads/main@{#36880} Bug: webrtc:13884 Change-Id: I85257088e4a3a62e01ff925ab5e77af83b078ef3 No-Presubmit: true No-Tree-Checks: true No-Try: true Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/262420 Bot-Commit: rubber-stamper@appspot.gserviceaccount.com <rubber-stamper@appspot.gserviceaccount.com> Commit-Queue: Artem Titov <titovartem@webrtc.org> Auto-Submit: Artem Titov <titovartem@webrtc.org> Owners-Override: Artem Titov <titovartem@webrtc.org> Cr-Commit-Position: refs/heads/main@{#36885} 2022-05-13 14:46:42 +00:00			`@interface AVCaptureSession (DevicePosition)`
[iOS] Fix incorrectly oriented frames when rapidly switching between cameras. During a call, with both phones in horizontal or landscape mode, rapidly switching between the front and back camera sometimes causes the remote video to be shown upside down. There seems to be a race condition when setting the rotation based on the orientation of the device and which camera we're using. So use the active input's camera to check instead of the client state. BUG=webrtc:7898 Review-Url: https://codereview.webrtc.org/2964703002 Cr-Commit-Position: refs/heads/master@{#19139} 2017-07-25 09:35:55 -07:00
			`// Check the image's EXIF for the camera the image came from.`
Revert "Add a prefix for objc category." This reverts commit 181ea6e414c5982015ce161e6368120be3658ec4. Reason for revert: Breaks downstream project. Kári will help to land it next week. Original change's description: > Add a prefix for objc category. > > According to the Google Objective-C style [1], category names should > start with an appropriate prefix. WebRTC has some category definitions > for system interfaces, but it doesn't use prefixes. > > $ otool -ov WebRTC.framework/WebRTC \| grep -E "^[0-9a-z]{16} 0x[0-9a-z]+ __OBJC_._CATEGORY" \| grep -v "_RTC" > 0000000002160840 0x217c3c0 __OBJC_$_CATEGORY_UIDevice_$_H264Profile > 0000000002160850 0x21808b8 __OBJC_$_CATEGORY_AVCaptureSession_$_DevicePosition > 0000000002160858 0x2180968 __OBJC_$_CATEGORY_NSString_$_StdString > 0000000002160860 0x21809c8 __OBJC_$_CATEGORY_NSString_$_AbslStringView > > To avoid conflicts, prefix the names and methods of those categories. > Also remove sdk/objc/Framework/Classes/Common/NSString+StdString.h as > it is not used by any other files. > > [1] https://google.github.io/styleguide/objcguide.html#category-naming > > Bug: webrtc:13884 > Change-Id: I2cf2742af198ab4e0bfb15c0476d72971e50ceee > Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/262341 > Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org> > Reviewed-by: Kári Helgason <kthelgason@webrtc.org> > Commit-Queue: Daniel.L (Byoungchan) Lee <daniel.l@hpcnt.com> > Reviewed-by: Artem Titov <titovartem@webrtc.org> > Cr-Commit-Position: refs/heads/main@{#36880} Bug: webrtc:13884 Change-Id: I85257088e4a3a62e01ff925ab5e77af83b078ef3 No-Presubmit: true No-Tree-Checks: true No-Try: true Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/262420 Bot-Commit: rubber-stamper@appspot.gserviceaccount.com <rubber-stamper@appspot.gserviceaccount.com> Commit-Queue: Artem Titov <titovartem@webrtc.org> Auto-Submit: Artem Titov <titovartem@webrtc.org> Owners-Override: Artem Titov <titovartem@webrtc.org> Cr-Commit-Position: refs/heads/main@{#36885} 2022-05-13 14:46:42 +00:00			`+ (AVCaptureDevicePosition)devicePositionForSampleBuffer:(CMSampleBufferRef)sampleBuffer;`
[iOS] Fix incorrectly oriented frames when rapidly switching between cameras. During a call, with both phones in horizontal or landscape mode, rapidly switching between the front and back camera sometimes causes the remote video to be shown upside down. There seems to be a race condition when setting the rotation based on the orientation of the device and which camera we're using. So use the active input's camera to check instead of the client state. BUG=webrtc:7898 Review-Url: https://codereview.webrtc.org/2964703002 Cr-Commit-Position: refs/heads/master@{#19139} 2017-07-25 09:35:55 -07:00
			`@end`

			`NS_ASSUME_NONNULL_END`