53 lines
1.6 KiB
C
53 lines
1.6 KiB
C
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/*
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* pulseaudio.c
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*
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* (c) Ruben Undheim 2012
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <stdio.h>
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#include <pulse/simple.h>
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#include <pulse/error.h>
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#include "pulseaudio.h"
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pa_simple *pulseaudio_initialize(unsigned char channels_number, const char *appname) {
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pa_simple *s;
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pa_sample_spec ss;
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ss.format = PA_SAMPLE_S16NE;
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ss.channels = channels_number;
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ss.rate = 48000;
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s = pa_simple_new(NULL,
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(appname != NULL) ? appname : "AIS Demodulator",
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PA_STREAM_RECORD, NULL, "AIS data", &ss, NULL, NULL, NULL);
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return s;
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}
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void pulseaudio_cleanup(pa_simple *s){
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pa_simple_free(s);
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}
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int pulseaudio_read(pa_simple *s, short *buffer, int count, unsigned char channels_number){
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int number_read = pa_simple_read(s, buffer, (size_t)(count * sizeof(short) * channels_number), NULL);
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return (number_read < 0) ? -1 : count;
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}
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