/usr/include/GNUstep/GNUstepGUI/GSSoundSink.h is in libgnustep-gui-dev 0.24.0-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 | /*
GSSoundSink.h
Sink audio data.
Copyright (C) 2009 Free Software Foundation, Inc.
Written by: Stefan Bidigaray <stefanbidi@gmail.com>
Date: Jun 2009
This file is part of the GNUstep GUI Library.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; see the file COPYING.LIB.
If not, see <http://www.gnu.org/licenses/> or write to the
Free Software Foundation, 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#ifndef _GNUstep_H_GSSoundSink
#define _GNUstep_H_GSSoundSink
#import <Foundation/NSByteOrder.h>
#import <Foundation/NSObject.h>
@protocol GSSoundSink <NSObject>
/** Returns YES if class has the ability of playing audio data
* through a playback device playbackDevice, NO otherwise.
*/
+ (BOOL)canInitWithPlaybackDevice: (NSString *)playbackDevice;
/** <init/>
* Initializes the receiver for output using the defined parameters.
* <p><b>WARNING:</b> This method does not open the device, see -open.</p>
*/
- (id)initWithEncoding: (int)encoding
channels: (NSUInteger)channelCount
sampleRate: (NSUInteger)sampleRate
byteOrder: (NSByteOrder)byteOrder;
/** Opens the device for output, called by [NSSound-play].
*/
- (BOOL)open;
/** Closes the device, called by [NSSound-stop].
*/
- (void)close;
/** Plays the data in bytes to the device. Data <i>must</i> be in
* the same format as specified in
* -initWithEncoding:channels:sampleRate:byteOrder:.
*/
- (BOOL)playBytes: (void *)bytes length: (NSUInteger)length;
/** Called by [NSSound-setVolume:], and corresponds to it. Parameter volume
* is between the values 0.0 and 1.0.
*/
- (void)setVolume: (float)volume;
/** Called by [NSSound-volume].
*/
- (float)volume;
/** Called by [NSSound-setPlaybackDeviceIdentifier:].
*/
- (void)setPlaybackDeviceIdentifier: (NSString *)playbackDeviceIdentifier;
/** Called by [NSSound-playbackDeviceIdentifier].
*/
- (NSString *)playbackDeviceIdentifier;
/** Called by [NSSound-setChannelMapping:].
*/
- (void)setChannelMapping: (NSArray *)channelMapping;
/** Called by [NSSound-channelMapping].
*/
- (NSArray *)channelMapping;
@end
#endif // _GNUstep_H_GSSoundSink
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