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sys/oss/gstossmixerelement.*: Added mixer element like alsamixer.

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Original commit message from CVS:
2005-08-23  Andy Wingo  <wingo@pobox.com>

* sys/oss/gstossmixerelement.h:
* sys/oss/gstossmixerelement.c: Added mixer element like
alsamixer.

* sys/oss/Makefile.am:
* sys/oss/gstossaudio.c: Register the ossmixer element.
This commit is contained in:
Andy Wingo 2005-08-23 13:53:17 +00:00
parent 007a0868a3
commit b976e88c29
6 changed files with 173 additions and 12 deletions
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7
ChangeLog
View file

@ -1,5 +1,12 @@
2005-08-23 Andy Wingo <wingo@pobox.com>
* sys/oss/gstossmixerelement.h:
* sys/oss/gstossmixerelement.c: Added mixer element like
alsamixer.
* sys/oss/Makefile.am:
* sys/oss/gstossaudio.c: Register the ossmixer element.
* sys/oss/gstossmixer.h:
* sys/oss/gstossmixer.c: Refactored to be more like alsamixer.

2
sys/oss/Makefile.am
View file

@ -3,6 +3,7 @@ plugin_LTLIBRARIES = libgstossaudio.la
libgstossaudio_la_SOURCES = gstossaudio.c \
gstosshelper.c \
gstossmixer.c \
gstossmixerelement.c \
gstossmixertrack.c \
gstosssink.c \
gstosssrc.c
@ -20,6 +21,7 @@ noinst_HEADERS = gstosssink.h \
gstosshelper.h \
gstossdmabuffer.h \
gstossmixer.h \
gstossmixerelement.h \
gstossmixertrack.h
# noinst_PROGRAMS = #oss_probe

5
sys/oss/gstossaudio.c
View file

@ -23,6 +23,7 @@
#include "gst/gst-i18n-plugin.h"
#include "gstossmixerelement.h"
#include "gstosssink.h"
#include "gstosssrc.h"
@ -33,8 +34,8 @@ GST_DEBUG_CATEGORY (oss_debug);
static gboolean
plugin_init (GstPlugin * plugin)
{
if ( /*!gst_element_register (plugin, "ossmixer", GST_RANK_PRIMARY,
GST_TYPE_OSSELEMENT) || */
if (!gst_element_register (plugin, "ossmixer", GST_RANK_NONE,
GST_TYPE_OSS_MIXER_ELEMENT) ||
!gst_element_register (plugin, "osssrc", GST_RANK_PRIMARY,
GST_TYPE_OSS_SRC) ||
!gst_element_register (plugin, "osssink", GST_RANK_SECONDARY,

1
sys/oss/gstossmixer.c
View file

@ -143,6 +143,7 @@ gst_ossmixer_new (const char *device, GstOssMixerDirection dir)
ret->device = g_strdup (device);
ret->dir = dir;
ret->mixer_fd = -1;
if (!gst_ossmixer_open (ret))
goto error;

92
sys/oss/gstossmixerelement.c Normal file
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@ -0,0 +1,92 @@
/* OSS mixer interface element.
* Copyright (C) 2005 Andrew Vander Wingo <wingo@pobox.com>
*
* 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstossmixerelement.h"
static GstElementDetails gst_oss_mixer_element_details =
GST_ELEMENT_DETAILS ("OSS Mixer",
"Generic/Audio",
"Control sound input and output levels with OSS",
"Andrew Vander Wingo <wingo@pobox.com>");
GST_BOILERPLATE_WITH_INTERFACE (GstOssMixerElement, gst_oss_mixer_element,
GstElement, GST_TYPE_ELEMENT, GstMixer, GST_TYPE_MIXER,
gst_oss_mixer_element);
GST_IMPLEMENT_OSS_MIXER_METHODS (GstOssMixerElement, gst_oss_mixer_element);
static GstElementStateReturn gst_oss_mixer_element_change_state (GstElement *
element);
static void
gst_oss_mixer_element_base_init (gpointer klass)
{
gst_element_class_set_details (GST_ELEMENT_CLASS (klass),
&gst_oss_mixer_element_details);
}
static void
gst_oss_mixer_element_class_init (GstOssMixerElementClass * klass)
{
GstElementClass *element_class;
element_class = (GstElementClass *) klass;
element_class->change_state = gst_oss_mixer_element_change_state;
}
static void
gst_oss_mixer_element_init (GstOssMixerElement * this)
{
this->mixer = NULL;
}
static GstElementStateReturn
gst_oss_mixer_element_change_state (GstElement * element)
{
GstOssMixerElement *this = GST_OSS_MIXER_ELEMENT (element);
switch (GST_STATE_TRANSITION (element)) {
case GST_STATE_NULL_TO_READY:
if (!this->mixer) {
this->mixer = gst_ossmixer_new ("/dev/mixer", GST_OSS_MIXER_ALL);
}
break;
case GST_STATE_READY_TO_NULL:
if (this->mixer) {
gst_ossmixer_free (this->mixer);
this->mixer = NULL;
}
break;
default:
break;
}
if (GST_ELEMENT_CLASS (parent_class)->change_state)
return GST_ELEMENT_CLASS (parent_class)->change_state (element);
return GST_STATE_SUCCESS;
}

58
sys/oss/gstossmixerelement.h Normal file
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@ -0,0 +1,58 @@
/* OSS mixer interface element.
* Copyright (C) 2005 Andrew Vander Wingo <wingo@pobox.com>
*
* 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.
*/
#ifndef __GST_OSS_MIXER_ELEMENT_H__
#define __GST_OSS_MIXER_ELEMENT_H__
#include "gstossmixer.h"
G_BEGIN_DECLS
#define GST_OSS_MIXER_ELEMENT(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_OSS_MIXER_ELEMENT,GstOssMixerElement))
#define GST_OSS_MIXER_ELEMENT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_OSS_MIXER_ELEMENT,GstOssMixerElementClass))
#define GST_IS_OSS_MIXER_ELEMENT(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_OSS_MIXER_ELEMENT))
#define GST_IS_OSS_MIXER_ELEMENT_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_OSS_MIXER_ELEMENT))
#define GST_TYPE_OSS_MIXER_ELEMENT (gst_oss_mixer_element_get_type())
typedef struct _GstOssMixerElement GstOssMixerElement;
typedef struct _GstOssMixerElementClass GstOssMixerElementClass;
struct _GstOssMixerElement {
GstElement parent;
GstOssMixer *mixer;
};
struct _GstOssMixerElementClass {
GstElementClass parent;
};
GType gst_oss_mixer_element_get_type (void);
G_END_DECLS
#endif /* __GST_OSS_MIXER_ELEMENT_H__ */