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/*
* 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 "RTCAudioSession+Private.h"
#import "RTCAudioSessionConfiguration.h"
#import "base/RTCLogging.h"
@implementation RTC_OBJC_TYPE (RTCAudioSession)
(Configuration)
- (BOOL)setConfiguration
: (RTC_OBJC_TYPE(RTCAudioSessionConfiguration) *)configuration error
: (NSError **)outError {
return [self setConfiguration:configuration
active:NO
shouldSetActive:NO
error:outError];
}
- (BOOL)setConfiguration:
(RTC_OBJC_TYPE(RTCAudioSessionConfiguration) *)configuration
active:(BOOL)active
error:(NSError **)outError {
return [self setConfiguration:configuration
active:active
shouldSetActive:YES
error:outError];
}
#pragma mark - Private
- (BOOL)setConfiguration:
(RTC_OBJC_TYPE(RTCAudioSessionConfiguration) *)configuration
active:(BOOL)active
shouldSetActive:(BOOL)shouldSetActive
error:(NSError **)outError {
NSParameterAssert(configuration);
if (outError) {
*outError = nil;
}
// Provide an error even if there isn't one so we can log it. We will not
// return immediately on error in this function and instead try to set
// everything we can.
NSError *error = nil;
if (self.category != configuration.category ||
self.mode != configuration.mode ||
self.categoryOptions != configuration.categoryOptions) {
NSError *configuringError = nil;
if (![self setCategory:configuration.category
mode:configuration.mode
options:configuration.categoryOptions
error:&configuringError]) {
RTCLogError(@"Failed to set category and mode: %@",
configuringError.localizedDescription);
error = configuringError;
} else {
RTCLog(@"Set category to: %@, mode: %@",
configuration.category,
configuration.mode);
}
}
if (self.preferredSampleRate != configuration.sampleRate) {
NSError *sampleRateError = nil;
if (![self setPreferredSampleRate:configuration.sampleRate
error:&sampleRateError]) {
RTCLogError(@"Failed to set preferred sample rate: %@",
sampleRateError.localizedDescription);
if (!self.ignoresPreferredAttributeConfigurationErrors) {
error = sampleRateError;
}
} else {
RTCLog(@"Set preferred sample rate to: %.2f", configuration.sampleRate);
}
}
if (self.preferredIOBufferDuration != configuration.ioBufferDuration) {
NSError *bufferDurationError = nil;
if (![self setPreferredIOBufferDuration:configuration.ioBufferDuration
error:&bufferDurationError]) {
RTCLogError(@"Failed to set preferred IO buffer duration: %@",
bufferDurationError.localizedDescription);
if (!self.ignoresPreferredAttributeConfigurationErrors) {
error = bufferDurationError;
}
} else {
RTCLog(@"Set preferred IO buffer duration to: %f",
configuration.ioBufferDuration);
}
}
if (shouldSetActive) {
NSError *activeError = nil;
if (![self setActive:active error:&activeError]) {
RTCLogError(@"Failed to setActive to %d: %@",
active,
activeError.localizedDescription);
error = activeError;
}
}
if (self.isActive &&
// TODO(tkchin): Figure out which category/mode numChannels is valid for.
[self.mode isEqualToString:AVAudioSessionModeVoiceChat]) {
// Try to set the preferred number of hardware audio channels. These calls
// must be done after setting the audio session’s category and mode and
// activating the session.
NSInteger inputNumberOfChannels = configuration.inputNumberOfChannels;
if (self.inputNumberOfChannels != inputNumberOfChannels) {
NSError *inputChannelsError = nil;
if (![self setPreferredInputNumberOfChannels:inputNumberOfChannels
error:&inputChannelsError]) {
RTCLogError(@"Failed to set preferred input number of channels: %@",
inputChannelsError.localizedDescription);
if (!self.ignoresPreferredAttributeConfigurationErrors) {
error = inputChannelsError;
}
} else {
RTCLog(@"Set input number of channels to: %ld",
(long)inputNumberOfChannels);
}
}
NSInteger outputNumberOfChannels = configuration.outputNumberOfChannels;
if (self.outputNumberOfChannels != outputNumberOfChannels) {
NSError *outputChannelsError = nil;
if (![self setPreferredOutputNumberOfChannels:outputNumberOfChannels
error:&outputChannelsError]) {
RTCLogError(@"Failed to set preferred output number of channels: %@",
outputChannelsError.localizedDescription);
if (!self.ignoresPreferredAttributeConfigurationErrors) {
error = outputChannelsError;
}
} else {
RTCLog(@"Set output number of channels to: %ld",
(long)outputNumberOfChannels);
}
}
}
if (outError) {
*outError = error;
}
return error == nil;
}
@end
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