gstreamer/ext/alsa/gstalsaplugin.c
Ronald S. Bultje 3a0a2898af Surround sound support.
Original commit message from CVS:
* ext/a52dec/gsta52dec.c: (gst_a52dec_channels), (gst_a52dec_push),
(gst_a52dec_reneg), (gst_a52dec_loop), (plugin_init):
* ext/alsa/gstalsa.c: (gst_alsa_get_caps):
* ext/alsa/gstalsaplugin.c: (plugin_init):
* ext/dts/gstdtsdec.c: (gst_dtsdec_channels),
(gst_dtsdec_renegotiate), (gst_dtsdec_loop), (plugin_init):
* ext/faad/gstfaad.c: (gst_faad_init), (gst_faad_chanpos_from_gst),
(gst_faad_chanpos_to_gst), (gst_faad_sinkconnect),
(gst_faad_srcgetcaps), (gst_faad_srcconnect), (gst_faad_chain),
(gst_faad_change_state), (plugin_init):
* ext/faad/gstfaad.h:
* ext/vorbis/vorbis.c: (plugin_init):
* ext/vorbis/vorbisdec.c: (vorbis_dec_chain):
* gst-libs/gst/audio/Makefile.am:
* gst-libs/gst/audio/audio.c: (plugin_init):
* gst-libs/gst/audio/multichannel.c:
(gst_audio_check_channel_positions),
(gst_audio_get_channel_positions),
(gst_audio_set_channel_positions),
(gst_audio_set_structure_channel_positions_list),
(add_list_to_struct), (gst_audio_set_caps_channel_positions_list),
(gst_audio_fixate_channel_positions):
* gst-libs/gst/audio/multichannel.h:
* gst-libs/gst/audio/testchannels.c: (main):
* gst/audioconvert/gstaudioconvert.c:
(gst_audio_convert_class_init), (gst_audio_convert_init),
(gst_audio_convert_dispose), (gst_audio_convert_getcaps),
(gst_audio_convert_parse_caps), (gst_audio_convert_link),
(gst_audio_convert_fixate), (gst_audio_convert_channels):
* gst/audioconvert/plugin.c: (plugin_init):
Surround sound support.
2004-11-25 20:36:29 +00:00

84 lines
2.5 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>
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstalsasink.h"
#include "gstalsasrc.h"
#include "gstalsamixer.h"
GST_DEBUG_CATEGORY (alsa_debug);
/* ALSA debugging wrapper */
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
}
static gboolean
plugin_init (GstPlugin * plugin)
{
int err;
if (!gst_library_load ("gstaudio"))
return FALSE;
if (!gst_element_register (plugin, "alsamixer", GST_RANK_NONE,
GST_TYPE_ALSA_MIXER))
return FALSE;
if (!gst_element_register (plugin, "alsasrc", GST_RANK_NONE,
GST_TYPE_ALSA_SRC))
return FALSE;
if (!gst_element_register (plugin, "alsasink", GST_RANK_NONE,
GST_TYPE_ALSA_SINK))
return FALSE;
GST_DEBUG_CATEGORY_INIT (alsa_debug, "alsa", 0, "alsa plugins");
err = snd_lib_error_set_handler (gst_alsa_error_wrapper);
if (err != 0)
GST_WARNING ("failed to set alsa error handler");
return TRUE;
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"alsa",
"ALSA plugin library",
plugin_init, VERSION, "LGPL", GST_PACKAGE, GST_ORIGIN)