From b976e88c29914b3d35b3e02612b22741998934d8 Mon Sep 17 00:00:00 2001 From: Andy Wingo Date: Tue, 23 Aug 2005 13:53:17 +0000 Subject: sys/oss/gstossmixerelement.*: Added mixer element like alsamixer. Original commit message from CVS: 2005-08-23 Andy Wingo * 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/Makefile.am | 22 ++++++----- sys/oss/gstossaudio.c | 5 ++- sys/oss/gstossmixer.c | 1 + sys/oss/gstossmixerelement.c | 92 ++++++++++++++++++++++++++++++++++++++++++++ sys/oss/gstossmixerelement.h | 58 ++++++++++++++++++++++++++++ 5 files changed, 166 insertions(+), 12 deletions(-) create mode 100644 sys/oss/gstossmixerelement.c create mode 100644 sys/oss/gstossmixerelement.h (limited to 'sys/oss') diff --git a/sys/oss/Makefile.am b/sys/oss/Makefile.am index d4fc2394..9c797cf8 100644 --- a/sys/oss/Makefile.am +++ b/sys/oss/Makefile.am @@ -1,10 +1,11 @@ plugin_LTLIBRARIES = libgstossaudio.la -libgstossaudio_la_SOURCES = gstossaudio.c \ - gstosshelper.c \ - gstossmixer.c \ - gstossmixertrack.c \ - gstosssink.c \ +libgstossaudio_la_SOURCES = gstossaudio.c \ + gstosshelper.c \ + gstossmixer.c \ + gstossmixerelement.c \ + gstossmixertrack.c \ + gstosssink.c \ gstosssrc.c # gstossdmabuffer.c @@ -15,11 +16,12 @@ libgstossaudio_la_LIBADD = $(GST_PLUGINS_BASE_LIBS) \ -lgstaudio-@GST_MAJORMINOR@ libgstossaudio_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS) -noinst_HEADERS = gstosssink.h \ - gstosssrc.h \ - gstosshelper.h \ - gstossdmabuffer.h \ - gstossmixer.h \ +noinst_HEADERS = gstosssink.h \ + gstosssrc.h \ + gstosshelper.h \ + gstossdmabuffer.h \ + gstossmixer.h \ + gstossmixerelement.h \ gstossmixertrack.h # noinst_PROGRAMS = #oss_probe diff --git a/sys/oss/gstossaudio.c b/sys/oss/gstossaudio.c index 219a0367..500cea67 100644 --- a/sys/oss/gstossaudio.c +++ b/sys/oss/gstossaudio.c @@ -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, diff --git a/sys/oss/gstossmixer.c b/sys/oss/gstossmixer.c index 1e972568..e199414d 100644 --- a/sys/oss/gstossmixer.c +++ b/sys/oss/gstossmixer.c @@ -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; diff --git a/sys/oss/gstossmixerelement.c b/sys/oss/gstossmixerelement.c new file mode 100644 index 00000000..28232d66 --- /dev/null +++ b/sys/oss/gstossmixerelement.c @@ -0,0 +1,92 @@ +/* OSS mixer interface element. + * Copyright (C) 2005 Andrew Vander Wingo + * + * 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 "); + + +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; +} diff --git a/sys/oss/gstossmixerelement.h b/sys/oss/gstossmixerelement.h new file mode 100644 index 00000000..8755c515 --- /dev/null +++ b/sys/oss/gstossmixerelement.h @@ -0,0 +1,58 @@ +/* OSS mixer interface element. + * Copyright (C) 2005 Andrew Vander Wingo + * + * 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__ */ -- cgit