nkeynes@657 | 1 | /**
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nkeynes@663 | 2 | * $Id$
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nkeynes@657 | 3 | *
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nkeynes@657 | 4 | * The pulseaudio sound driver
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nkeynes@657 | 5 | *
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nkeynes@657 | 6 | * Copyright (c) 2005 Nathan Keynes.
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nkeynes@657 | 7 | *
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nkeynes@657 | 8 | * This program is free software; you can redistribute it and/or modify
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nkeynes@657 | 9 | * it under the terms of the GNU General Public License as published by
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nkeynes@657 | 10 | * the Free Software Foundation; either version 2 of the License, or
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nkeynes@657 | 11 | * (at your option) any later version.
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nkeynes@657 | 12 | *
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nkeynes@657 | 13 | * This program is distributed in the hope that it will be useful,
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nkeynes@657 | 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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nkeynes@657 | 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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nkeynes@657 | 16 | * GNU General Public License for more details.
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nkeynes@657 | 17 | */
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nkeynes@657 | 18 | #include <stdio.h>
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nkeynes@657 | 19 | #include <unistd.h>
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nkeynes@657 | 20 | #include <pulse/simple.h>
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nkeynes@657 | 21 | #include "aica/audio.h"
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nkeynes@657 | 22 | #include "lxdream.h"
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nkeynes@657 | 23 |
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nkeynes@657 | 24 | static pa_simple *pulse_server = NULL;
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nkeynes@657 | 25 |
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nkeynes@657 | 26 | gboolean audio_pulse_init()
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nkeynes@657 | 27 | {
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nkeynes@657 | 28 | return TRUE;
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nkeynes@657 | 29 | }
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nkeynes@657 | 30 |
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nkeynes@657 | 31 | gboolean audio_pulse_set_format( uint32_t rate, uint32_t format )
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nkeynes@657 | 32 | {
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nkeynes@657 | 33 | pa_sample_spec ss;
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nkeynes@657 | 34 |
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nkeynes@657 | 35 | if( pulse_server != NULL ) {
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nkeynes@657 | 36 | pa_simple_free(pulse_server);
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nkeynes@657 | 37 | }
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nkeynes@657 | 38 | ss.rate = rate;
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nkeynes@657 | 39 |
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nkeynes@657 | 40 | if( format & AUDIO_FMT_16BIT ) {
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nkeynes@657 | 41 | ss.format = PA_SAMPLE_S16NE;
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nkeynes@657 | 42 | } else {
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nkeynes@657 | 43 | ss.format = PA_SAMPLE_U8;
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nkeynes@657 | 44 | }
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nkeynes@657 | 45 |
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nkeynes@657 | 46 | if( format & AUDIO_FMT_STEREO ) {
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nkeynes@657 | 47 | ss.channels = 2;
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nkeynes@657 | 48 | } else {
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nkeynes@657 | 49 | ss.channels = 1;
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nkeynes@657 | 50 | }
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nkeynes@657 | 51 |
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nkeynes@657 | 52 | pulse_server = pa_simple_new(NULL, APP_NAME, PA_STREAM_PLAYBACK,
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nkeynes@657 | 53 | NULL, "Audio", &ss, NULL, NULL, NULL);
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nkeynes@657 | 54 | if( pulse_server == NULL ) {
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nkeynes@657 | 55 | ERROR( "Unable to open audio output (pulseaudio)" );
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nkeynes@657 | 56 | return FALSE;
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nkeynes@657 | 57 | }
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nkeynes@657 | 58 | return TRUE;
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nkeynes@657 | 59 | }
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nkeynes@657 | 60 |
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nkeynes@657 | 61 | gboolean audio_pulse_process_buffer( audio_buffer_t buffer )
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nkeynes@657 | 62 | {
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nkeynes@657 | 63 | if( pulse_server != NULL ) {
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nkeynes@657 | 64 | int error;
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nkeynes@657 | 65 | pa_simple_write( pulse_server, buffer->data, buffer->length, &error );
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nkeynes@657 | 66 | return TRUE;
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nkeynes@657 | 67 | } else {
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nkeynes@657 | 68 | ERROR( "Pulseaudio not initialized" );
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nkeynes@657 | 69 | return FALSE;
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nkeynes@657 | 70 | }
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nkeynes@657 | 71 | }
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nkeynes@657 | 72 |
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nkeynes@657 | 73 | gboolean audio_pulse_close()
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nkeynes@657 | 74 | {
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nkeynes@657 | 75 | pa_simple_free(pulse_server);
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nkeynes@657 | 76 | pulse_server = NULL;
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nkeynes@657 | 77 | return TRUE;
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nkeynes@657 | 78 | }
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nkeynes@657 | 79 |
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nkeynes@657 | 80 | struct audio_driver audio_pulse_driver = { "pulse",
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nkeynes@657 | 81 | audio_pulse_init,
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nkeynes@657 | 82 | audio_pulse_set_format,
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nkeynes@657 | 83 | audio_pulse_process_buffer,
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nkeynes@657 | 84 | audio_pulse_close};
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nkeynes@657 | 85 |
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