1 /*****************************************************************************
2 * dsp.c : OSS /dev/dsp plugin for vlc
3 *****************************************************************************
4 * Copyright (C) 2000 VideoLAN
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
21 *****************************************************************************/
23 /*****************************************************************************
25 *****************************************************************************/
28 #include <sys/types.h>
31 #include <stdlib.h> /* malloc(), free() */
32 #include <unistd.h> /* close() */
35 #include "common.h" /* boolean_t, byte_t */
41 #include "interface.h"
42 #include "audio_output.h"
44 #include "video_output.h"
48 /*****************************************************************************
50 *****************************************************************************/
51 static void aout_GetPlugin( p_aout_thread_t p_aout );
54 int aout_DspOpen ( aout_thread_t *p_aout );
55 int aout_DspReset ( aout_thread_t *p_aout );
56 int aout_DspSetFormat ( aout_thread_t *p_aout );
57 int aout_DspSetChannels ( aout_thread_t *p_aout );
58 int aout_DspSetRate ( aout_thread_t *p_aout );
59 long aout_DspGetBufInfo ( aout_thread_t *p_aout, long l_buffer_info );
60 void aout_DspPlaySamples ( aout_thread_t *p_aout, byte_t *buffer,
62 void aout_DspClose ( aout_thread_t *p_aout );
64 /*****************************************************************************
65 * GetConfig: get the plugin structure and configuration
66 *****************************************************************************/
67 plugin_info_t * GetConfig( void )
70 plugin_info_t * p_info = (plugin_info_t *) malloc( sizeof(plugin_info_t) );
72 p_info->psz_name = "OSS /dev/dsp";
73 p_info->psz_version = VERSION;
74 p_info->psz_author = "the VideoLAN team <vlc@videolan.org>";
76 p_info->aout_GetPlugin = aout_GetPlugin;
77 p_info->vout_GetPlugin = NULL;
78 p_info->intf_GetPlugin = NULL;
79 p_info->yuv_GetPlugin = NULL;
81 /* Test if the device can be opened */
82 if ( (i_fd = open( main_GetPszVariable( AOUT_DSP_VAR, AOUT_DSP_DEFAULT ),
90 p_info->i_score = 0x100;
93 /* If this plugin was requested, score it higher */
94 if( TestMethod( AOUT_METHOD_VAR, "dsp" ) )
96 p_info->i_score += 0x200;
102 /*****************************************************************************
103 * Following functions are only called through the p_info structure
104 *****************************************************************************/
106 static void aout_GetPlugin( p_aout_thread_t p_aout )
108 p_aout->p_sys_open = aout_DspOpen;
109 p_aout->p_sys_reset = aout_DspReset;
110 p_aout->p_sys_setformat = aout_DspSetFormat;
111 p_aout->p_sys_setchannels = aout_DspSetChannels;
112 p_aout->p_sys_setrate = aout_DspSetRate;
113 p_aout->p_sys_getbufinfo = aout_DspGetBufInfo;
114 p_aout->p_sys_playsamples = aout_DspPlaySamples;
115 p_aout->p_sys_close = aout_DspClose;