1 /*

     2  * Copyright (C) 2001 CodeFactory AB

     3  * Copyright (C) 2001 Thomas Nyberg <thomas@codefactory.se>

     4  * Copyright (C) 2001-2002 Andy Wingo <apwingo@eos.ncsu.edu>

     5  * Copyright (C) 2003 Benjamin Otte <in7y118@public.uni-hamburg.de>

     6  *

     7  * This library is free software; you can redistribute it and/or

     8  * modify it under the terms of the GNU Library General Public

     9  * License as published by the Free Software Foundation; either

    10  * version 2 of the License, or (at your option) any later version.

    11  *

    12  * This library is distributed in the hope that it will be useful,

    13  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

    15  * Library General Public License for more details.

    16  *

    17  * You should have received a copy of the GNU Library General Public

    18  * License along with this library; if not, write to the Free

    19  * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

    20  */

    21 

    22 #ifdef HAVE_CONFIG_H

    23 #include "config.h"

    24 #endif

    25 

    26 #include "gstalsasink.h"

    27 #include "gstalsasrc.h"

    28 #include "gstalsamixerelement.h"

    29 

    30 #include <gst/gst-i18n-plugin.h>

    31 

    32 GST_DEBUG_CATEGORY (alsa_debug);

    33 

    34 /* ALSA debugging wrapper */

    35 static void

    36 gst_alsa_error_wrapper (const char *file, int line, const char *function,

    37     int err, const char *fmt, ...)

    38 {

    39 #ifndef GST_DISABLE_GST_DEBUG

    40   va_list args;

    41   gchar *str;

    42 

    43   va_start (args, fmt);

    44   str = g_strdup_vprintf (fmt, args);

    45   va_end (args);

    46   /* FIXME: use GST_LEVEL_ERROR here? Currently warning is used because we're 

    47    * able to catch enough of the errors that would be printed otherwise

    48    */

    49   gst_debug_log (alsa_debug, GST_LEVEL_WARNING, file, function, line, NULL,

    50       "alsalib error: %s%s%s", str, err ? ": " : "",

    51       err ? snd_strerror (err) : "");

    52   g_free (str);

    53 #endif

    54 }

    55 

    56 static gboolean

    57 plugin_init (GstPlugin * plugin)

    58 {

    59   int err;

    60 

    61   if (!gst_element_register (plugin, "alsamixer", GST_RANK_NONE,

    62           GST_TYPE_ALSA_MIXER_ELEMENT))

    63     return FALSE;

    64   if (!gst_element_register (plugin, "alsasrc", GST_RANK_PRIMARY,

    65           GST_TYPE_ALSA_SRC))

    66     return FALSE;

    67   if (!gst_element_register (plugin, "alsasink", GST_RANK_PRIMARY,

    68           GST_TYPE_ALSA_SINK))

    69     return FALSE;

    70 

    71   GST_DEBUG_CATEGORY_INIT (alsa_debug, "alsa", 0, "alsa plugins");

    72 

    73 #if ENABLE_NLS

    74   GST_DEBUG ("binding text domain %s to locale dir %s", GETTEXT_PACKAGE,

    75       LOCALEDIR);

    76   bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);

    77 #endif

    78 

    79   err = snd_lib_error_set_handler (gst_alsa_error_wrapper);

    80   if (err != 0)

    81     GST_WARNING ("failed to set alsa error handler");

    82 

    83   return TRUE;

    84 }

    85 

    86 GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,

    87     GST_VERSION_MINOR,

    88     "alsa",

    89     "ALSA plugin library",

    90     plugin_init, VERSION, "LGPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)