gstreamer/ext/alsa/gstalsaelement.c
Stéphane Cerveau 4a2981f906 alsa: allow per feature registration
Split plugin into features including
elements and device providers which
can be indiviually registered during
a static build.

More details here:

https://gitlab.freedesktop.org/gstreamer/gst-build/-/merge_requests/199
https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/661

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-base/-/merge_requests/900>
2020-12-10 13:01:57 +00:00

80 lines
2.6 KiB
C

/*
* Copyright (C) 2001 CodeFactory AB
* Copyright (C) 2001 Thomas Nyberg <thomas@codefactory.se>
* Copyright (C) 2001-2002 Andy Wingo <apwingo@eos.ncsu.edu>
* Copyright (C) 2003 Benjamin Otte <in7y118@public.uni-hamburg.de>
* Copyright (C) 2020 Huawei Technologies Co., Ltd.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstalsaelements.h"
#include "gstalsadeviceprovider.h"
#include <gst/gst-i18n-plugin.h>
GST_DEBUG_CATEGORY (alsa_debug);
/* ALSA debugging wrapper */
/* *INDENT-OFF* */
G_GNUC_PRINTF (5, 6)
/* *INDENT-ON* */
static void
gst_alsa_error_wrapper (const char *file, int line, const char *function,
int err, const char *fmt, ...)
{
#ifndef GST_DISABLE_GST_DEBUG
va_list args;
gchar *str;
va_start (args, fmt);
str = g_strdup_vprintf (fmt, args);
va_end (args);
/* FIXME: use GST_LEVEL_ERROR here? Currently warning is used because we're
* able to catch enough of the errors that would be printed otherwise
*/
gst_debug_log (alsa_debug, GST_LEVEL_WARNING, file, function, line, NULL,
"alsalib error: %s%s%s", str, err ? ": " : "",
err ? snd_strerror (err) : "");
g_free (str);
#endif
}
GST_DEVICE_PROVIDER_REGISTER_DEFINE (alsadeviceprovider, "alsadeviceprovider",
GST_RANK_SECONDARY, GST_TYPE_ALSA_DEVICE_PROVIDER);
gboolean
alsa_element_init (GstPlugin * plugin)
{
static gsize res = FALSE;
if (g_once_init_enter (&res)) {
GST_DEBUG_CATEGORY_INIT (alsa_debug, "alsa", 0, "alsa plugins");
#ifdef ENABLE_NLS
GST_DEBUG ("binding text domain %s to locale dir %s", GETTEXT_PACKAGE,
LOCALEDIR);
bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
#endif
if (snd_lib_error_set_handler (gst_alsa_error_wrapper) != 0)
GST_WARNING ("failed to set alsa error handler");
g_once_init_leave (&res, TRUE);
}
return res;
}