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lxdream.org :: lxdream/src/drivers/audio_esd.c
lxdream 0.9.1
released Jun 29
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filename src/drivers/audio_esd.c
changeset 86:f151e63f9754
prev78:4ba04e1d8448
next106:9048bac046c3
author nkeynes
date Sun Jan 22 22:40:05 2006 +0000 (15 years ago)
permissions -rw-r--r--
last change Add aica_enable() function for aica-only mode, disable by default
Halt ARM on invalid address but leave everything else running
Error if ESD can't start
file annotate diff log raw
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/**
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 * $Id: audio_esd.c,v 1.5 2006-01-22 22:40:05 nkeynes Exp $
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 * 
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 * The esd (esound) audio driver
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 *
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 * Copyright (c) 2005 Nathan Keynes.
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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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#include <esd.h>
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#include "aica/audio.h"
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#include "dream.h"
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int esd_handle = -1;
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int esd_sample_size = 1;
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gboolean esd_audio_set_format( uint32_t rate, uint32_t format )
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{
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    if( esd_handle != -1 ) {
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	esd_close(esd_handle);
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    }
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    esd_format_t esd_format = 0;
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    esd_sample_size = 1;
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    if( format & AUDIO_FMT_16BIT ) {
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	esd_format |= ESD_BITS16;
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    } else esd_format |= ESD_BITS8;
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    if( format & AUDIO_FMT_STEREO ) {
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	esd_format |= ESD_STEREO;
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    }
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    else esd_format |= ESD_MONO;
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    esd_handle = esd_play_stream( esd_format, rate, "localhost", "dreamon" );
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    if( esd_handle == -1 ) {
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	ERROR( "Unable to open audio output (ESD)" );
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    }
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    return TRUE;
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}
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gboolean esd_audio_process_buffer( audio_buffer_t buffer )
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{
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    if( esd_handle != -1 ) {
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	write( esd_handle, buffer->data, buffer->length );
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	return TRUE;
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    } else {
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	ERROR( "ESD not initialized" );
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	return FALSE;
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    }
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}
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struct audio_driver esd_audio_driver = { "esd", esd_audio_set_format, esd_audio_process_buffer };
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.