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117 lines
4.2 KiB
117 lines
4.2 KiB
/*****************************************************************************
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* dsp.c : OSS /dev/dsp plugin for vlc
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*****************************************************************************
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* Copyright (C) 2000 VideoLAN
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*
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* Authors:
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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, USA.
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*****************************************************************************/
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/*****************************************************************************
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* Preamble
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*****************************************************************************/
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#include "defs.h"
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <stdlib.h> /* malloc(), free() */
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#include <unistd.h> /* close() */
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#include "config.h"
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#include "common.h" /* boolean_t, byte_t */
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#include "threads.h"
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#include "mtime.h"
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#include "tests.h"
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#include "plugins.h"
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#include "interface.h"
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#include "audio_output.h"
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#include "video.h"
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#include "video_output.h"
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#include "main.h"
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/*****************************************************************************
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* Exported prototypes
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*****************************************************************************/
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static void aout_GetPlugin( p_aout_thread_t p_aout );
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/* Audio output */
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int aout_DspOpen ( aout_thread_t *p_aout );
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int aout_DspReset ( aout_thread_t *p_aout );
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int aout_DspSetFormat ( aout_thread_t *p_aout );
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int aout_DspSetChannels ( aout_thread_t *p_aout );
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int aout_DspSetRate ( aout_thread_t *p_aout );
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long aout_DspGetBufInfo ( aout_thread_t *p_aout, long l_buffer_info );
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void aout_DspPlaySamples ( aout_thread_t *p_aout, byte_t *buffer,
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int i_size );
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void aout_DspClose ( aout_thread_t *p_aout );
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/*****************************************************************************
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* GetConfig: get the plugin structure and configuration
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*****************************************************************************/
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plugin_info_t * GetConfig( void )
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{
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int i_fd;
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plugin_info_t * p_info = (plugin_info_t *) malloc( sizeof(plugin_info_t) );
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p_info->psz_name = "OSS /dev/dsp";
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p_info->psz_version = VERSION;
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p_info->psz_author = "the VideoLAN team <vlc@videolan.org>";
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p_info->aout_GetPlugin = aout_GetPlugin;
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p_info->vout_GetPlugin = NULL;
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p_info->intf_GetPlugin = NULL;
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p_info->yuv_GetPlugin = NULL;
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/* Test if the device can be opened */
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if ( (i_fd = open( main_GetPszVariable( AOUT_DSP_VAR, AOUT_DSP_DEFAULT ),
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O_WRONLY )) < 0 )
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{
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p_info->i_score = 0;
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}
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else
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{
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close( i_fd );
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p_info->i_score = 0x100;
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}
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/* If this plugin was requested, score it higher */
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if( TestMethod( AOUT_METHOD_VAR, "dsp" ) )
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{
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p_info->i_score += 0x200;
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}
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return( p_info );
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}
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/*****************************************************************************
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* Following functions are only called through the p_info structure
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*****************************************************************************/
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static void aout_GetPlugin( p_aout_thread_t p_aout )
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{
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p_aout->p_sys_open = aout_DspOpen;
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p_aout->p_sys_reset = aout_DspReset;
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p_aout->p_sys_setformat = aout_DspSetFormat;
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p_aout->p_sys_setchannels = aout_DspSetChannels;
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p_aout->p_sys_setrate = aout_DspSetRate;
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p_aout->p_sys_getbufinfo = aout_DspGetBufInfo;
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p_aout->p_sys_playsamples = aout_DspPlaySamples;
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p_aout->p_sys_close = aout_DspClose;
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}
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