70 lines
2.3 KiB
C
70 lines
2.3 KiB
C
/*
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Copyright (C) 2004-2006 Jean-Marc Valin
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Copyright (C) 2006 Commonwealth Scientific and Industrial Research
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Organisation (CSIRO) Australia
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are
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met:
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1. Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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3. The name of the author may not be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef ALSA_DEVICE_H
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#define ALSA_DEVICE_H
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#include <sys/poll.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct AlsaDevice_;
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typedef struct AlsaDevice_ AlsaDevice;
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AlsaDevice *alsa_device_open(char *device_name, unsigned int rate, int channels, int period);
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void alsa_device_close(AlsaDevice *dev);
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int alsa_device_read(AlsaDevice *dev, short *pcm, int len);
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int alsa_device_write(AlsaDevice *dev, const short *pcm, int len);
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int alsa_device_capture_ready(AlsaDevice *dev, struct pollfd *pfds, unsigned int nfds);
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int alsa_device_playback_ready(AlsaDevice *dev, struct pollfd *pfds, unsigned int nfds);
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void alsa_device_start(AlsaDevice *dev);
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int alsa_device_nfds(AlsaDevice *dev);
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void alsa_device_getfds(AlsaDevice *dev, struct pollfd *pfds, unsigned int nfds);
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#ifdef __cplusplus
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}
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#endif
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#endif
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