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webrtc_m130/webrtc/sdk/objc/Framework/Classes/Common/RTCUIApplicationStatusObserver.h

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Fix VideoToolbox backgrounding issues. When the iOS application is not in the foreground, the hardware encoder and decoder become invalidated. There doesn't seem to be a way to query their state so we don't know they're invalid until we get an error code after an encode/decode request. To solve the issue, we just don't encode/decode when the app is not active, and reinitialize the encoder/decoder when the app is active again. Also fixes a leak in the decoder. BUG=webrtc:4081 Review URL: https://codereview.webrtc.org/1732953003 Cr-Commit-Position: refs/heads/master@{#11916}
2016-03-08 10:51:54 -08:00
/*
* Copyright 2016 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.
*/
#if defined(WEBRTC_IOS)
Access UIApplication on main thread Track UIApplication applicationState changes from a C++ class. Uses NSNotificationCenter to access changes on the main thread and exposes a local variable that can be checked from any thread. This fixes a runtime warning on iOS 11 beta. My Objective-C++ is a little rusty so please check if this follows the conventions for C++ code in the project. It also changes the interface exposed by RTCUIApplication.h, not sure if that has impact on any public APIs that needs to be documented somewhere? Bug: webrtc:7773 Change-Id: I9c8ba090ef9f28d812114026a906cef742192c39 Reviewed-on: https://chromium-review.googlesource.com/527442 Reviewed-by: Magnus Jedvert <magjed@webrtc.org> Reviewed-by: Kári Tristan Helgason <kthelgason@webrtc.org> Commit-Queue: Anders Carlsson <andersc@webrtc.org> Cr-Commit-Position: refs/heads/master@{#18558}
2017-06-12 14:16:20 +02:00
#import <Foundation/Foundation.h>
@interface RTCUIApplicationStatusObserver : NSObject
+ (instancetype)sharedInstance;
- (BOOL)isApplicationActive;
Fix VideoToolbox backgrounding issues. When the iOS application is not in the foreground, the hardware encoder and decoder become invalidated. There doesn't seem to be a way to query their state so we don't know they're invalid until we get an error code after an encode/decode request. To solve the issue, we just don't encode/decode when the app is not active, and reinitialize the encoder/decoder when the app is active again. Also fixes a leak in the decoder. BUG=webrtc:4081 Review URL: https://codereview.webrtc.org/1732953003 Cr-Commit-Position: refs/heads/master@{#11916}
2016-03-08 10:51:54 -08:00
Access UIApplication on main thread Track UIApplication applicationState changes from a C++ class. Uses NSNotificationCenter to access changes on the main thread and exposes a local variable that can be checked from any thread. This fixes a runtime warning on iOS 11 beta. My Objective-C++ is a little rusty so please check if this follows the conventions for C++ code in the project. It also changes the interface exposed by RTCUIApplication.h, not sure if that has impact on any public APIs that needs to be documented somewhere? Bug: webrtc:7773 Change-Id: I9c8ba090ef9f28d812114026a906cef742192c39 Reviewed-on: https://chromium-review.googlesource.com/527442 Reviewed-by: Magnus Jedvert <magjed@webrtc.org> Reviewed-by: Kári Tristan Helgason <kthelgason@webrtc.org> Commit-Queue: Anders Carlsson <andersc@webrtc.org> Cr-Commit-Position: refs/heads/master@{#18558}
2017-06-12 14:16:20 +02:00
@end
Fix VideoToolbox backgrounding issues. When the iOS application is not in the foreground, the hardware encoder and decoder become invalidated. There doesn't seem to be a way to query their state so we don't know they're invalid until we get an error code after an encode/decode request. To solve the issue, we just don't encode/decode when the app is not active, and reinitialize the encoder/decoder when the app is active again. Also fixes a leak in the decoder. BUG=webrtc:4081 Review URL: https://codereview.webrtc.org/1732953003 Cr-Commit-Position: refs/heads/master@{#11916}
2016-03-08 10:51:54 -08:00
Access UIApplication on main thread Track UIApplication applicationState changes from a C++ class. Uses NSNotificationCenter to access changes on the main thread and exposes a local variable that can be checked from any thread. This fixes a runtime warning on iOS 11 beta. My Objective-C++ is a little rusty so please check if this follows the conventions for C++ code in the project. It also changes the interface exposed by RTCUIApplication.h, not sure if that has impact on any public APIs that needs to be documented somewhere? Bug: webrtc:7773 Change-Id: I9c8ba090ef9f28d812114026a906cef742192c39 Reviewed-on: https://chromium-review.googlesource.com/527442 Reviewed-by: Magnus Jedvert <magjed@webrtc.org> Reviewed-by: Kári Tristan Helgason <kthelgason@webrtc.org> Commit-Queue: Anders Carlsson <andersc@webrtc.org> Cr-Commit-Position: refs/heads/master@{#18558}
2017-06-12 14:16:20 +02:00
#endif // WEBRTC_IOS
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