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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 561:533f6b478071
prev424:421d68e78c46
next643:653b0a70f173
author nkeynes
date Tue Jan 01 05:08:38 2008 +0000 (12 years ago)
branchlxdream-mmu
permissions -rw-r--r--
last change Enable Id keyword on all source files
file annotate diff log raw
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/**
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 * $Id$
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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 <stdio.h>
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#include <unistd.h>
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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 audio_esd_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", "lxdream" );
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    if( esd_handle == -1 ) {
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	ERROR( "Unable to open audio output (ESD)" );
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	return FALSE;
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    }
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    return TRUE;
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}
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gboolean audio_esd_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 audio_esd_driver = { "esd", audio_esd_set_format, audio_esd_process_buffer };
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.