/*****************************************************************************
- * dsp.c : OSS /dev/dsp plugin for vlc
+ * dsp.c : OSS /dev/dsp module for vlc
*****************************************************************************
* Copyright (C) 2000 VideoLAN
*
- * Authors:
+ * Authors: Michel Kaempf <maxx@via.ecp.fr>
+ * Samuel Hocevar <sam@zoy.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
*****************************************************************************/
+#define MODULE_NAME dsp
+#include "modules_inner.h"
+
/*****************************************************************************
* Preamble
*****************************************************************************/
#include "defs.h"
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
#include <stdlib.h> /* malloc(), free() */
-#include <unistd.h> /* close() */
+#include <string.h> /* strdup() */
#include "config.h"
#include "common.h" /* boolean_t, byte_t */
#include "threads.h"
#include "mtime.h"
-#include "tests.h"
-#include "plugins.h"
-#include "interface.h"
-#include "audio_output.h"
-#include "video.h"
-#include "video_output.h"
+#include "modules.h"
-#include "main.h"
+/*****************************************************************************
+ * Build configuration tree.
+ *****************************************************************************/
+MODULE_CONFIG_START
+ADD_WINDOW( "Configuration for dsp module" )
+ ADD_FRAME( "OSS Device" )
+ ADD_FILE( "Device name: ", MODULE_VAR(device), NULL )
+MODULE_CONFIG_END
/*****************************************************************************
- * Exported prototypes
+ * Capabilities defined in the other files.
*****************************************************************************/
-static void aout_GetPlugin( p_aout_thread_t p_aout );
-
-/* Audio output */
-int aout_DspOpen ( aout_thread_t *p_aout );
-int aout_DspReset ( aout_thread_t *p_aout );
-int aout_DspSetFormat ( aout_thread_t *p_aout );
-int aout_DspSetChannels ( aout_thread_t *p_aout );
-int aout_DspSetRate ( aout_thread_t *p_aout );
-long aout_DspGetBufInfo ( aout_thread_t *p_aout, long l_buffer_info );
-void aout_DspPlaySamples ( aout_thread_t *p_aout, byte_t *buffer,
- int i_size );
-void aout_DspClose ( aout_thread_t *p_aout );
+void _M( aout_getfunctions )( function_list_t * p_function_list );
/*****************************************************************************
- * GetConfig: get the plugin structure and configuration
+ * InitModule: get the module structure and configuration.
+ *****************************************************************************
+ * We have to fill psz_name, psz_longname and psz_version. These variables
+ * will be strdup()ed later by the main application because the module can
+ * be unloaded later to save memory, and we want to be able to access this
+ * data even after the module has been unloaded.
*****************************************************************************/
-plugin_info_t * GetConfig( void )
+MODULE_INIT
{
- int i_fd;
- plugin_info_t * p_info = (plugin_info_t *) malloc( sizeof(plugin_info_t) );
+ p_module->psz_name = MODULE_STRING;
+ p_module->psz_longname = "Linux OSS /dev/dsp module";
+ p_module->psz_version = VERSION;
- p_info->psz_name = "OSS /dev/dsp";
- p_info->psz_version = VERSION;
- p_info->psz_author = "the VideoLAN team <vlc@videolan.org>";
+ p_module->i_capabilities = MODULE_CAPABILITY_NULL
+ | MODULE_CAPABILITY_AOUT;
- p_info->aout_GetPlugin = aout_GetPlugin;
- p_info->vout_GetPlugin = NULL;
- p_info->intf_GetPlugin = NULL;
- p_info->yuv_GetPlugin = NULL;
+ return( 0 );
+}
- /* Test if the device can be opened */
- if ( (i_fd = open( main_GetPszVariable( AOUT_DSP_VAR, AOUT_DSP_DEFAULT ),
- O_WRONLY )) < 0 )
- {
- p_info->i_score = 0;
- }
- else
+/*****************************************************************************
+ * ActivateModule: set the module to an usable state.
+ *****************************************************************************
+ * This function fills the capability functions and the configuration
+ * structure. Once ActivateModule() has been called, the i_usage can
+ * be set to 0 and calls to NeedModule() be made to increment it. To unload
+ * the module, one has to wait until i_usage == 0 and call DeactivateModule().
+ *****************************************************************************/
+MODULE_ACTIVATE
+{
+ p_module->p_functions = malloc( sizeof( module_functions_t ) );
+ if( p_module->p_functions == NULL )
{
- close( i_fd );
- p_info->i_score = 0x100;
+ return( -1 );
}
- /* If this plugin was requested, score it higher */
- if( TestMethod( AOUT_METHOD_VAR, "dsp" ) )
- {
- p_info->i_score += 0x200;
- }
+ _M( aout_getfunctions )( &p_module->p_functions->aout );
- return( p_info );
+ p_module->p_config = p_config;
+
+ return( 0 );
}
/*****************************************************************************
- * Following functions are only called through the p_info structure
+ * DeactivateModule: make sure the module can be unloaded.
+ *****************************************************************************
+ * This function must only be called when i_usage == 0. If it successfully
+ * returns, i_usage can be set to -1 and the module unloaded. Be careful to
+ * lock usage_lock during the whole process.
*****************************************************************************/
-
-static void aout_GetPlugin( p_aout_thread_t p_aout )
+MODULE_DEACTIVATE
{
- p_aout->p_sys_open = aout_DspOpen;
- p_aout->p_sys_reset = aout_DspReset;
- p_aout->p_sys_setformat = aout_DspSetFormat;
- p_aout->p_sys_setchannels = aout_DspSetChannels;
- p_aout->p_sys_setrate = aout_DspSetRate;
- p_aout->p_sys_getbufinfo = aout_DspGetBufInfo;
- p_aout->p_sys_playsamples = aout_DspPlaySamples;
- p_aout->p_sys_close = aout_DspClose;
+ free( p_module->p_functions );
+
+ return( 0 );
}
projects / vlc / blobdiff