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Unified Diff: webrtc/sdk/objc/Framework/Classes/Video/RTCAVFoundationVideoCapturerInternal.mm

Issue 2890513002: Revert of Split iOS sdk in to separate targets (Closed)
Patch Set: Created 3 years, 7 months ago
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Index: webrtc/sdk/objc/Framework/Classes/Video/RTCAVFoundationVideoCapturerInternal.mm
diff --git a/webrtc/sdk/objc/Framework/Classes/Video/RTCAVFoundationVideoCapturerInternal.mm b/webrtc/sdk/objc/Framework/Classes/Video/RTCAVFoundationVideoCapturerInternal.mm
deleted file mode 100644
index 166a609824941775e629936bb6e4c03905d20242..0000000000000000000000000000000000000000
--- a/webrtc/sdk/objc/Framework/Classes/Video/RTCAVFoundationVideoCapturerInternal.mm
+++ /dev/null
@@ -1,503 +0,0 @@
-/*
- * 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.
- */
-
-#import "RTCAVFoundationVideoCapturerInternal.h"
-
-#import <Foundation/Foundation.h>
-#if TARGET_OS_IPHONE
-#import <UIKit/UIKit.h>
-#import "WebRTC/UIDevice+RTCDevice.h"
-#endif
-
-#import "RTCDispatcher+Private.h"
-#import "WebRTC/RTCLogging.h"
-
-#include "avfoundationformatmapper.h"
-
-@implementation RTCAVFoundationVideoCapturerInternal {
- // Keep pointers to inputs for convenience.
- AVCaptureDeviceInput *_frontCameraInput;
- AVCaptureDeviceInput *_backCameraInput;
- AVCaptureVideoDataOutput *_videoDataOutput;
- // The cricket::VideoCapturer that owns this class. Should never be NULL.
- webrtc::AVFoundationVideoCapturer *_capturer;
- webrtc::VideoRotation _rotation;
- BOOL _hasRetriedOnFatalError;
- BOOL _isRunning;
- BOOL _hasStarted;
- rtc::CriticalSection _crit;
-}
-
-@synthesize captureSession = _captureSession;
-@synthesize frameQueue = _frameQueue;
-@synthesize useBackCamera = _useBackCamera;
-
-@synthesize isRunning = _isRunning;
-@synthesize hasStarted = _hasStarted;
-
-// This is called from the thread that creates the video source, which is likely
-// the main thread.
-- (instancetype)initWithCapturer:(webrtc::AVFoundationVideoCapturer *)capturer {
- RTC_DCHECK(capturer);
- if (self = [super init]) {
- _capturer = capturer;
- // Create the capture session and all relevant inputs and outputs. We need
- // to do this in init because the application may want the capture session
- // before we start the capturer for e.g. AVCapturePreviewLayer. All objects
- // created here are retained until dealloc and never recreated.
- if (![self setupCaptureSession]) {
- return nil;
- }
- NSNotificationCenter *center = [NSNotificationCenter defaultCenter];
-#if TARGET_OS_IPHONE
- [center addObserver:self
- selector:@selector(deviceOrientationDidChange:)
- name:UIDeviceOrientationDidChangeNotification
- object:nil];
- [center addObserver:self
- selector:@selector(handleCaptureSessionInterruption:)
- name:AVCaptureSessionWasInterruptedNotification
- object:_captureSession];
- [center addObserver:self
- selector:@selector(handleCaptureSessionInterruptionEnded:)
- name:AVCaptureSessionInterruptionEndedNotification
- object:_captureSession];
- [center addObserver:self
- selector:@selector(handleApplicationDidBecomeActive:)
- name:UIApplicationDidBecomeActiveNotification
- object:[UIApplication sharedApplication]];
-#endif
- [center addObserver:self
- selector:@selector(handleCaptureSessionRuntimeError:)
- name:AVCaptureSessionRuntimeErrorNotification
- object:_captureSession];
- [center addObserver:self
- selector:@selector(handleCaptureSessionDidStartRunning:)
- name:AVCaptureSessionDidStartRunningNotification
- object:_captureSession];
- [center addObserver:self
- selector:@selector(handleCaptureSessionDidStopRunning:)
- name:AVCaptureSessionDidStopRunningNotification
- object:_captureSession];
- }
- return self;
-}
-
-- (void)dealloc {
- RTC_DCHECK(!self.hasStarted);
- [[NSNotificationCenter defaultCenter] removeObserver:self];
- _capturer = nullptr;
-}
-
-- (AVCaptureSession *)captureSession {
- return _captureSession;
-}
-
-- (AVCaptureDevice *)getActiveCaptureDevice {
- return self.useBackCamera ? _backCameraInput.device : _frontCameraInput.device;
-}
-
-- (nullable AVCaptureDevice *)frontCaptureDevice {
- return _frontCameraInput.device;
-}
-
-- (nullable AVCaptureDevice *)backCaptureDevice {
- return _backCameraInput.device;
-}
-
-- (dispatch_queue_t)frameQueue {
- if (!_frameQueue) {
- _frameQueue =
- dispatch_queue_create("org.webrtc.avfoundationvideocapturer.video", DISPATCH_QUEUE_SERIAL);
- dispatch_set_target_queue(_frameQueue,
- dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_HIGH, 0));
- }
- return _frameQueue;
-}
-
-// Called from any thread (likely main thread).
-- (BOOL)canUseBackCamera {
- return _backCameraInput != nil;
-}
-
-// Called from any thread (likely main thread).
-- (BOOL)useBackCamera {
- @synchronized(self) {
- return _useBackCamera;
- }
-}
-
-// Called from any thread (likely main thread).
-- (void)setUseBackCamera:(BOOL)useBackCamera {
- if (!self.canUseBackCamera) {
- if (useBackCamera) {
- RTCLogWarning(@"No rear-facing camera exists or it cannot be used;"
- "not switching.");
- }
- return;
- }
- @synchronized(self) {
- if (_useBackCamera == useBackCamera) {
- return;
- }
- _useBackCamera = useBackCamera;
- [self updateSessionInputForUseBackCamera:useBackCamera];
- }
-}
-
-// Called from WebRTC thread.
-- (void)start {
- if (self.hasStarted) {
- return;
- }
- self.hasStarted = YES;
- [RTCDispatcher
- dispatchAsyncOnType:RTCDispatcherTypeCaptureSession
- block:^{
-#if TARGET_OS_IPHONE
- // Default to portrait orientation on iPhone. This will be reset in
- // updateOrientation unless orientation is unknown/faceup/facedown.
- _rotation = webrtc::kVideoRotation_90;
-#else
- // No rotation on Mac.
- _rotation = webrtc::kVideoRotation_0;
-#endif
- [self updateOrientation];
-#if TARGET_OS_IPHONE
- [[UIDevice currentDevice] beginGeneratingDeviceOrientationNotifications];
-#endif
- AVCaptureSession *captureSession = self.captureSession;
- [captureSession startRunning];
- }];
-}
-
-// Called from same thread as start.
-- (void)stop {
- if (!self.hasStarted) {
- return;
- }
- self.hasStarted = NO;
- // Due to this async block, it's possible that the ObjC object outlives the
- // C++ one. In order to not invoke functions on the C++ object, we set
- // hasStarted immediately instead of dispatching it async.
- [RTCDispatcher
- dispatchAsyncOnType:RTCDispatcherTypeCaptureSession
- block:^{
- [_videoDataOutput setSampleBufferDelegate:nil queue:nullptr];
- [_captureSession stopRunning];
-#if TARGET_OS_IPHONE
- [[UIDevice currentDevice] endGeneratingDeviceOrientationNotifications];
-#endif
- }];
-}
-
-#pragma mark iOS notifications
-
-#if TARGET_OS_IPHONE
-- (void)deviceOrientationDidChange:(NSNotification *)notification {
- [RTCDispatcher dispatchAsyncOnType:RTCDispatcherTypeCaptureSession
- block:^{
- [self updateOrientation];
- }];
-}
-#endif
-
-#pragma mark AVCaptureVideoDataOutputSampleBufferDelegate
-
-- (void)captureOutput:(AVCaptureOutput *)captureOutput
- didOutputSampleBuffer:(CMSampleBufferRef)sampleBuffer
- fromConnection:(AVCaptureConnection *)connection {
- NSParameterAssert(captureOutput == _videoDataOutput);
- if (!self.hasStarted) {
- return;
- }
- _capturer->CaptureSampleBuffer(sampleBuffer, _rotation);
-}
-
-- (void)captureOutput:(AVCaptureOutput *)captureOutput
- didDropSampleBuffer:(CMSampleBufferRef)sampleBuffer
- fromConnection:(AVCaptureConnection *)connection {
- RTCLogError(@"Dropped sample buffer.");
-}
-
-#pragma mark - AVCaptureSession notifications
-
-- (void)handleCaptureSessionInterruption:(NSNotification *)notification {
- NSString *reasonString = nil;
-#if defined(__IPHONE_9_0) && defined(__IPHONE_OS_VERSION_MAX_ALLOWED) && \
- __IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_9_0
- if ([UIDevice isIOS9OrLater]) {
- NSNumber *reason = notification.userInfo[AVCaptureSessionInterruptionReasonKey];
- if (reason) {
- switch (reason.intValue) {
- case AVCaptureSessionInterruptionReasonVideoDeviceNotAvailableInBackground:
- reasonString = @"VideoDeviceNotAvailableInBackground";
- break;
- case AVCaptureSessionInterruptionReasonAudioDeviceInUseByAnotherClient:
- reasonString = @"AudioDeviceInUseByAnotherClient";
- break;
- case AVCaptureSessionInterruptionReasonVideoDeviceInUseByAnotherClient:
- reasonString = @"VideoDeviceInUseByAnotherClient";
- break;
- case AVCaptureSessionInterruptionReasonVideoDeviceNotAvailableWithMultipleForegroundApps:
- reasonString = @"VideoDeviceNotAvailableWithMultipleForegroundApps";
- break;
- }
- }
- }
-#endif
- RTCLog(@"Capture session interrupted: %@", reasonString);
- // TODO(tkchin): Handle this case.
-}
-
-- (void)handleCaptureSessionInterruptionEnded:(NSNotification *)notification {
- RTCLog(@"Capture session interruption ended.");
- // TODO(tkchin): Handle this case.
-}
-
-- (void)handleCaptureSessionRuntimeError:(NSNotification *)notification {
- NSError *error = [notification.userInfo objectForKey:AVCaptureSessionErrorKey];
- RTCLogError(@"Capture session runtime error: %@", error);
-
- [RTCDispatcher dispatchAsyncOnType:RTCDispatcherTypeCaptureSession
- block:^{
-#if TARGET_OS_IPHONE
- if (error.code == AVErrorMediaServicesWereReset) {
- [self handleNonFatalError];
- } else {
- [self handleFatalError];
- }
-#else
- [self handleFatalError];
-#endif
- }];
-}
-
-- (void)handleCaptureSessionDidStartRunning:(NSNotification *)notification {
- RTCLog(@"Capture session started.");
-
- self.isRunning = YES;
- [RTCDispatcher dispatchAsyncOnType:RTCDispatcherTypeCaptureSession
- block:^{
- // If we successfully restarted after an unknown error,
- // allow future retries on fatal errors.
- _hasRetriedOnFatalError = NO;
- }];
-}
-
-- (void)handleCaptureSessionDidStopRunning:(NSNotification *)notification {
- RTCLog(@"Capture session stopped.");
- self.isRunning = NO;
-}
-
-- (void)handleFatalError {
- [RTCDispatcher
- dispatchAsyncOnType:RTCDispatcherTypeCaptureSession
- block:^{
- if (!_hasRetriedOnFatalError) {
- RTCLogWarning(@"Attempting to recover from fatal capture error.");
- [self handleNonFatalError];
- _hasRetriedOnFatalError = YES;
- } else {
- RTCLogError(@"Previous fatal error recovery failed.");
- }
- }];
-}
-
-- (void)handleNonFatalError {
- [RTCDispatcher dispatchAsyncOnType:RTCDispatcherTypeCaptureSession
- block:^{
- if (self.hasStarted) {
- RTCLog(@"Restarting capture session after error.");
- [self.captureSession startRunning];
- }
- }];
-}
-
-#if TARGET_OS_IPHONE
-
-#pragma mark - UIApplication notifications
-
-- (void)handleApplicationDidBecomeActive:(NSNotification *)notification {
- [RTCDispatcher dispatchAsyncOnType:RTCDispatcherTypeCaptureSession
- block:^{
- if (self.hasStarted && !self.captureSession.isRunning) {
- RTCLog(@"Restarting capture session on active.");
- [self.captureSession startRunning];
- }
- }];
-}
-
-#endif // TARGET_OS_IPHONE
-
-#pragma mark - Private
-
-- (BOOL)setupCaptureSession {
- AVCaptureSession *captureSession = [[AVCaptureSession alloc] init];
-#if defined(WEBRTC_IOS)
- captureSession.usesApplicationAudioSession = NO;
-#endif
- // Add the output.
- AVCaptureVideoDataOutput *videoDataOutput = [self videoDataOutput];
- if (![captureSession canAddOutput:videoDataOutput]) {
- RTCLogError(@"Video data output unsupported.");
- return NO;
- }
- [captureSession addOutput:videoDataOutput];
-
- // Get the front and back cameras. If there isn't a front camera
- // give up.
- AVCaptureDeviceInput *frontCameraInput = [self frontCameraInput];
- AVCaptureDeviceInput *backCameraInput = [self backCameraInput];
- if (!frontCameraInput) {
- RTCLogError(@"No front camera for capture session.");
- return NO;
- }
-
- // Add the inputs.
- if (![captureSession canAddInput:frontCameraInput] ||
- (backCameraInput && ![captureSession canAddInput:backCameraInput])) {
- RTCLogError(@"Session does not support capture inputs.");
- return NO;
- }
- AVCaptureDeviceInput *input = self.useBackCamera ? backCameraInput : frontCameraInput;
- [captureSession addInput:input];
-
- _captureSession = captureSession;
- return YES;
-}
-
-- (AVCaptureVideoDataOutput *)videoDataOutput {
- if (!_videoDataOutput) {
- // Make the capturer output NV12. Ideally we want I420 but that's not
- // currently supported on iPhone / iPad.
- AVCaptureVideoDataOutput *videoDataOutput = [[AVCaptureVideoDataOutput alloc] init];
- videoDataOutput.videoSettings = @{
- (NSString *)
- // TODO(denicija): Remove this color conversion and use the original capture format directly.
- kCVPixelBufferPixelFormatTypeKey : @(kCVPixelFormatType_420YpCbCr8BiPlanarFullRange)
- };
- videoDataOutput.alwaysDiscardsLateVideoFrames = NO;
- [videoDataOutput setSampleBufferDelegate:self queue:self.frameQueue];
- _videoDataOutput = videoDataOutput;
- }
- return _videoDataOutput;
-}
-
-- (AVCaptureDevice *)videoCaptureDeviceForPosition:(AVCaptureDevicePosition)position {
- for (AVCaptureDevice *captureDevice in [AVCaptureDevice devicesWithMediaType:AVMediaTypeVideo]) {
- if (captureDevice.position == position) {
- return captureDevice;
- }
- }
- return nil;
-}
-
-- (AVCaptureDeviceInput *)frontCameraInput {
- if (!_frontCameraInput) {
-#if TARGET_OS_IPHONE
- AVCaptureDevice *frontCameraDevice =
- [self videoCaptureDeviceForPosition:AVCaptureDevicePositionFront];
-#else
- AVCaptureDevice *frontCameraDevice =
- [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];
-#endif
- if (!frontCameraDevice) {
- RTCLogWarning(@"Failed to find front capture device.");
- return nil;
- }
- NSError *error = nil;
- AVCaptureDeviceInput *frontCameraInput =
- [AVCaptureDeviceInput deviceInputWithDevice:frontCameraDevice error:&error];
- if (!frontCameraInput) {
- RTCLogError(@"Failed to create front camera input: %@", error.localizedDescription);
- return nil;
- }
- _frontCameraInput = frontCameraInput;
- }
- return _frontCameraInput;
-}
-
-- (AVCaptureDeviceInput *)backCameraInput {
- if (!_backCameraInput) {
- AVCaptureDevice *backCameraDevice =
- [self videoCaptureDeviceForPosition:AVCaptureDevicePositionBack];
- if (!backCameraDevice) {
- RTCLogWarning(@"Failed to find front capture device.");
- return nil;
- }
- NSError *error = nil;
- AVCaptureDeviceInput *backCameraInput =
- [AVCaptureDeviceInput deviceInputWithDevice:backCameraDevice error:&error];
- if (!backCameraInput) {
- RTCLogError(@"Failed to create front camera input: %@", error.localizedDescription);
- return nil;
- }
- _backCameraInput = backCameraInput;
- }
- return _backCameraInput;
-}
-
-// Called from capture session queue.
-- (void)updateOrientation {
-#if TARGET_OS_IPHONE
- switch ([UIDevice currentDevice].orientation) {
- case UIDeviceOrientationPortrait:
- _rotation = webrtc::kVideoRotation_90;
- break;
- case UIDeviceOrientationPortraitUpsideDown:
- _rotation = webrtc::kVideoRotation_270;
- break;
- case UIDeviceOrientationLandscapeLeft:
- _rotation =
- _capturer->GetUseBackCamera() ? webrtc::kVideoRotation_0 : webrtc::kVideoRotation_180;
- break;
- case UIDeviceOrientationLandscapeRight:
- _rotation =
- _capturer->GetUseBackCamera() ? webrtc::kVideoRotation_180 : webrtc::kVideoRotation_0;
- break;
- case UIDeviceOrientationFaceUp:
- case UIDeviceOrientationFaceDown:
- case UIDeviceOrientationUnknown:
- // Ignore.
- break;
- }
-#endif
-}
-
-// Update the current session input to match what's stored in _useBackCamera.
-- (void)updateSessionInputForUseBackCamera:(BOOL)useBackCamera {
- [RTCDispatcher dispatchAsyncOnType:RTCDispatcherTypeCaptureSession
- block:^{
- [_captureSession beginConfiguration];
- AVCaptureDeviceInput *oldInput = _backCameraInput;
- AVCaptureDeviceInput *newInput = _frontCameraInput;
- if (useBackCamera) {
- oldInput = _frontCameraInput;
- newInput = _backCameraInput;
- }
- if (oldInput) {
- // Ok to remove this even if it's not attached. Will be no-op.
- [_captureSession removeInput:oldInput];
- }
- if (newInput) {
- [_captureSession addInput:newInput];
- }
- [self updateOrientation];
- AVCaptureDevice *newDevice = newInput.device;
- const cricket::VideoFormat *format =
- _capturer->GetCaptureFormat();
- webrtc::SetFormatForCaptureDevice(
- newDevice, _captureSession, *format);
- [_captureSession commitConfiguration];
- }];
-}
-
-@end

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