diff options
Diffstat (limited to 'ext/gconf')
-rw-r--r-- | ext/gconf/Makefile.am | 27 | ||||
-rw-r--r-- | ext/gconf/Makefile.in | 894 | ||||
-rw-r--r-- | ext/gconf/gstgconf.c | 304 | ||||
-rw-r--r-- | ext/gconf/gstgconf.h | 66 | ||||
-rw-r--r-- | ext/gconf/gstgconfaudiosink.c | 310 | ||||
-rw-r--r-- | ext/gconf/gstgconfaudiosink.h | 62 | ||||
-rw-r--r-- | ext/gconf/gstgconfaudiosrc.c | 210 | ||||
-rw-r--r-- | ext/gconf/gstgconfaudiosrc.h | 57 | ||||
-rw-r--r-- | ext/gconf/gstgconfelements.c | 59 | ||||
-rw-r--r-- | ext/gconf/gstgconfelements.h | 28 | ||||
-rw-r--r-- | ext/gconf/gstgconfvideosink.c | 210 | ||||
-rw-r--r-- | ext/gconf/gstgconfvideosink.h | 64 | ||||
-rw-r--r-- | ext/gconf/gstgconfvideosrc.c | 209 | ||||
-rw-r--r-- | ext/gconf/gstgconfvideosrc.h | 58 | ||||
-rw-r--r-- | ext/gconf/gstswitchsink.c | 270 | ||||
-rw-r--r-- | ext/gconf/gstswitchsink.h | 62 | ||||
-rw-r--r-- | ext/gconf/gstswitchsrc.c | 262 | ||||
-rw-r--r-- | ext/gconf/gstswitchsrc.h | 57 |
18 files changed, 3209 insertions, 0 deletions
diff --git a/ext/gconf/Makefile.am b/ext/gconf/Makefile.am new file mode 100644 index 0000000..0f1cffb --- /dev/null +++ b/ext/gconf/Makefile.am @@ -0,0 +1,27 @@ +plugin_LTLIBRARIES = libgstgconfelements.la + +libgstgconfelements_la_SOURCES = \ + gstgconfaudiosink.c \ + gstgconfaudiosrc.c \ + gstgconfelements.c \ + gstgconfvideosink.c \ + gstgconfvideosrc.c \ + gstswitchsink.c \ + gstswitchsrc.c \ + gstgconf.c + +DIR_CFLAGS = -DGST_GCONF_DIR=\"/system/gstreamer/@GST_MAJORMINOR@\" +libgstgconfelements_la_CFLAGS = $(GST_CFLAGS) $(GCONF_CFLAGS) $(DIR_CFLAGS) +libgstgconfelements_la_LIBADD = $(GST_LIBS) $(GCONF_LIBS) +libgstgconfelements_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS) +libgstgconfelements_la_LIBTOOLFLAGS = --tag=disable-static + +noinst_HEADERS = \ + gstgconfaudiosink.h \ + gstgconfaudiosrc.h \ + gstgconfelements.h \ + gstgconfvideosink.h \ + gstgconfvideosrc.h \ + gstswitchsink.h \ + gstswitchsrc.h \ + gstgconf.h diff --git a/ext/gconf/Makefile.in b/ext/gconf/Makefile.in new file mode 100644 index 0000000..afb7c0c --- /dev/null +++ b/ext/gconf/Makefile.in @@ -0,0 +1,894 @@ +# Makefile.in generated by automake 1.11.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, +# 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, +# Inc. +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + + +VPATH = @srcdir@ +pkgdatadir = $(datadir)/@PACKAGE@ +pkgincludedir = $(includedir)/@PACKAGE@ +pkglibdir = $(libdir)/@PACKAGE@ +pkglibexecdir = $(libexecdir)/@PACKAGE@ +am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd 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mostlyclean-libtool pdf pdf-am ps ps-am \ + tags uninstall uninstall-am uninstall-pluginLTLIBRARIES + + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/ext/gconf/gstgconf.c b/ext/gconf/gstgconf.c new file mode 100644 index 0000000..eee80c9 --- /dev/null +++ b/ext/gconf/gstgconf.c @@ -0,0 +1,304 @@ +/* GStreamer + * nf_get_default_audio_sink + * Copyright (C) <2002> Thomas Vander Stichele <thomas@apestaart.org> + * Copyright (C) <2006> Jürg Billeter <j@bitron.ch> + * + * 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. + */ + +/* + * this library handles interaction with GConf + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <gst/gst.h> + +#include "gstgconf.h" +#include "gstgconfelements.h" /* for debug category */ + +#ifndef GST_GCONF_DIR +#error "GST_GCONF_DIR is not defined !" +#endif + +static GConfClient *_gst_gconf_client = NULL; /* GConf connection */ + + +/* internal functions */ + +static GConfClient * +gst_gconf_get_client (void) +{ + if (!_gst_gconf_client) + _gst_gconf_client = gconf_client_get_default (); + + return _gst_gconf_client; +} + +/* external functions */ + +/** + * gst_gconf_get_string: + * @key: a #gchar corresponding to the key you want to get. + * + * Get GConf key @key's string value. + * + * Returns: a newly allocated #gchar string containing @key's value, + * or NULL in the case of an error.. + */ +gchar * +gst_gconf_get_string (const gchar * key) +{ + GError *error = NULL; + gchar *value = NULL; + gchar *full_key; + + if (!g_str_has_prefix (key, GST_GCONF_DIR)) + full_key = g_strdup_printf ("%s/%s", GST_GCONF_DIR, key); + else + full_key = g_strdup (key); + + value = gconf_client_get_string (gst_gconf_get_client (), full_key, &error); + g_free (full_key); + + if (error) { + g_warning ("gst_gconf_get_string: error: %s\n", error->message); + g_error_free (error); + return NULL; + } + + return value; +} + +const gchar * +gst_gconf_get_key_for_sink_profile (GstGConfProfile profile) +{ + switch (profile) { + case GCONF_PROFILE_SOUNDS: + return GST_GCONF_DIR "/" GST_GCONF_AUDIOSINK_KEY; + case GCONF_PROFILE_MUSIC: + return GST_GCONF_DIR "/" GST_GCONF_MUSIC_AUDIOSINK_KEY; + case GCONF_PROFILE_CHAT: + return GST_GCONF_DIR "/" GST_GCONF_CHAT_AUDIOSINK_KEY; + default: + break; + } + + g_return_val_if_reached (GST_GCONF_DIR "/" GST_GCONF_AUDIOSINK_KEY); +} + +/** + * gst_gconf_set_string: + * @key: a #gchar corresponding to the key you want to set. + * @value: a #gchar containing key value. + * + * Set GConf key @key to string value @value. + */ +void +gst_gconf_set_string (const gchar * key, const gchar * value) +{ + GError *error = NULL; + gchar *full_key; + + if (!g_str_has_prefix (key, GST_GCONF_DIR)) + full_key = g_strdup_printf ("%s/%s", GST_GCONF_DIR, key); + else + full_key = g_strdup (key); + + gconf_client_set_string (gst_gconf_get_client (), full_key, value, &error); + if (error) { + GST_ERROR ("gst_gconf_set_string: error: %s\n", error->message); + g_error_free (error); + } + g_free (full_key); +} + +/** + * gst_gconf_render_bin_from_key: + * @key: a #gchar string corresponding to a GConf key. + * + * Render bin from GConf key @key. + * + * Returns: a #GstElement containing the rendered bin. + */ +GstElement * +gst_gconf_render_bin_from_key (const gchar * key) +{ + GstElement *bin = NULL; + gchar *value; + + value = gst_gconf_get_string (key); + + GST_LOG ("%s = %s", GST_STR_NULL (key), GST_STR_NULL (value)); + + if (value) { + GError *err = NULL; + + bin = gst_parse_bin_from_description (value, TRUE, &err); + if (err) { + GST_ERROR ("gconf: error creating bin '%s': %s", value, err->message); + g_error_free (err); + } + + g_free (value); + } + return bin; +} + +/** + * gst_gconf_render_bin_with_default: + * @bin: a #gchar string describing the pipeline to construct. + * @default_sink: an element to use as default if the given pipeline fails to construct. + * + * Render bin from description @bin using @default_sink element as a fallback. + * + * Returns: a #GstElement containing the rendered bin. + */ +GstElement * +gst_gconf_render_bin_with_default (const gchar * bin, + const gchar * default_sink) +{ + GstElement *ret = NULL; + GError *err = NULL; + + if (bin != NULL) + ret = gst_parse_bin_from_description (bin, TRUE, &err); + + if (ret == NULL || err != NULL) { + if (err) { + GST_DEBUG ("Could not create audio sink from GConf settings: %s", + err->message); + g_error_free (err); + } else { + GST_DEBUG ("Could not create audio sink from GConf settings"); + } + + ret = gst_element_factory_make (default_sink, NULL); + + if (!ret) + g_warning + ("Could not build GConf audio sink and the replacement %s doesn't work", + DEFAULT_AUDIOSINK); + } + + return ret; +} + +/** + * gst_gconf_get_default_video_sink: + * + * Render video output bin from GStreamer GConf key : "default/videosink". + * If key is invalid, the default video sink for the platform is used + * (typically xvimagesink or ximagesink). + * + * Returns: a #GstElement containing the video output bin, or NULL if + * everything failed. + */ +GstElement * +gst_gconf_get_default_video_sink (void) +{ + GstElement *ret = gst_gconf_render_bin_from_key (GST_GCONF_VIDEOSINK_KEY); + + if (!ret) { + ret = gst_element_factory_make (DEFAULT_VIDEOSINK, NULL); + + if (!ret) + g_warning ("No GConf default video sink key and %s doesn't work", + DEFAULT_VIDEOSINK); + } + + return ret; +} + +/** + * gst_gconf_get_default_audio_src: + * + * Render audio acquisition bin from GStreamer GConf key : "default/audiosrc". + * If key is invalid, the default audio source for the plaform is used. + * (typically osssrc or sunaudiosrc). + * + * Returns: a #GstElement containing the audio source bin, or NULL if + * everything failed. + */ +GstElement * +gst_gconf_get_default_audio_src (void) +{ + GstElement *ret = gst_gconf_render_bin_from_key (GST_GCONF_AUDIOSRC_KEY); + + if (!ret) { + ret = gst_element_factory_make (DEFAULT_AUDIOSRC, NULL); + + if (!ret) + g_warning ("No GConf default audio src key and %s doesn't work", + DEFAULT_AUDIOSRC); + } + + return ret; +} + +/** + * gst_gconf_get_default_video_src: + * + * Render video acquisition bin from GStreamer GConf key : + * "default/videosrc". If key is invalid, the default video source + * for the platform is used (typically videotestsrc). + * + * Returns: a #GstElement containing the video source bin, or NULL if + * everything failed. + */ +GstElement * +gst_gconf_get_default_video_src (void) +{ + GstElement *ret = gst_gconf_render_bin_from_key (GST_GCONF_VIDEOSRC_KEY); + + if (!ret) { + ret = gst_element_factory_make (DEFAULT_VIDEOSRC, NULL); + + if (!ret) + g_warning ("No GConf default video src key and %s doesn't work", + DEFAULT_VIDEOSRC); + } + + return ret; +} + +/** + * gst_gconf_get_default_visualization_element: + * + * Render visualization bin from GStreamer GConf key : "default/visualization". + * If key is invalid, the default visualization element is used. + * + * Returns: a #GstElement containing the visualization bin, or NULL if + * everything failed. + */ +GstElement * +gst_gconf_get_default_visualization_element (void) +{ + GstElement *ret = gst_gconf_render_bin_from_key ("default/visualization"); + + if (!ret) { + ret = gst_element_factory_make (DEFAULT_VISUALIZER, NULL); + + if (!ret) + g_warning + ("No GConf default visualization plugin key and %s doesn't work", + DEFAULT_VISUALIZER); + } + + return ret; +} diff --git a/ext/gconf/gstgconf.h b/ext/gconf/gstgconf.h new file mode 100644 index 0000000..b1153e9 --- /dev/null +++ b/ext/gconf/gstgconf.h @@ -0,0 +1,66 @@ +/* GStreamer + * Copyright (C) <2002> Thomas Vander Stichele <thomas@apestaart.org> + * Copyright (C) <2006> Jürg Billeter <j@bitron.ch> + * + * 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. + */ + +#ifndef GST_GCONF_H +#define GST_GCONF_H + +/* + * this library handles interaction with GConf + */ + +#include <gst/gst.h> +#include <gconf/gconf-client.h> + +G_BEGIN_DECLS + +#define GST_GCONF_AUDIOSRC_KEY "default/audiosrc" +#define GST_GCONF_AUDIOSINK_KEY "default/audiosink" +#define GST_GCONF_MUSIC_AUDIOSINK_KEY "default/musicaudiosink" +#define GST_GCONF_CHAT_AUDIOSINK_KEY "default/chataudiosink" +#define GST_GCONF_VIDEOSRC_KEY "default/videosrc" +#define GST_GCONF_VIDEOSINK_KEY "default/videosink" + +typedef enum +{ + GCONF_PROFILE_SOUNDS, + GCONF_PROFILE_MUSIC, + GCONF_PROFILE_CHAT, + GCONF_PROFILE_NONE /* Internal value only */ +} GstGConfProfile; + +gchar * gst_gconf_get_string (const gchar *key); +void gst_gconf_set_string (const gchar *key, + const gchar *value); + +const gchar * gst_gconf_get_key_for_sink_profile (GstGConfProfile profile); + +GstElement * gst_gconf_render_bin_from_key (const gchar *key); +GstElement * gst_gconf_render_bin_with_default (const gchar *bin, + const gchar *default_sink); + +GstElement * gst_gconf_get_default_video_sink (void); +GstElement * gst_gconf_get_default_audio_sink (int profile); +GstElement * gst_gconf_get_default_video_src (void); +GstElement * gst_gconf_get_default_audio_src (void); +GstElement * gst_gconf_get_default_visualization_element (void); + +G_END_DECLS + +#endif /* GST_GCONF_H */ diff --git a/ext/gconf/gstgconfaudiosink.c b/ext/gconf/gstgconfaudiosink.c new file mode 100644 index 0000000..d60f2be --- /dev/null +++ b/ext/gconf/gstgconfaudiosink.c @@ -0,0 +1,310 @@ +/* GStreamer + * (c) 2005 Ronald S. Bultje <rbultje@ronald.bitfreak.net> + * (c) 2006 Jürg Billeter <j@bitron.ch> + * + * 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. + */ +/** + * SECTION:element-gconfaudiosink + * + * This element outputs sound to the audiosink that has been configured in + * GConf by the user. + * + * <refsect2> + * <title>Example launch line</title> + * |[ + * gst-launch filesrc location=foo.ogg ! decodebin ! audioconvert ! audioresample ! gconfaudiosink + * ]| Play on configured audiosink + * </refsect2> + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <string.h> + +#include "gstgconfelements.h" +#include "gstgconfaudiosink.h" + +static void gst_gconf_audio_sink_dispose (GObject * object); +static void gst_gconf_audio_sink_finalize (GstGConfAudioSink * sink); +static void cb_change_child (GConfClient * client, + guint connection_id, GConfEntry * entry, gpointer data); +static GstStateChangeReturn +gst_gconf_audio_sink_change_state (GstElement * element, + GstStateChange transition); +static void gst_gconf_switch_profile (GstGConfAudioSink * sink, + GstGConfProfile profile); + +enum +{ + PROP_0, + PROP_PROFILE +}; + +GST_BOILERPLATE (GstGConfAudioSink, gst_gconf_audio_sink, GstSwitchSink, + GST_TYPE_SWITCH_SINK); + +static void gst_gconf_audio_sink_set_property (GObject * object, guint prop_id, + const GValue * value, GParamSpec * pspec); +static void gst_gconf_audio_sink_get_property (GObject * object, guint prop_id, + GValue * value, GParamSpec * pspec); + +static void +gst_gconf_audio_sink_base_init (gpointer klass) +{ + GstElementClass *eklass = GST_ELEMENT_CLASS (klass); + + gst_element_class_set_details_simple (eklass, "GConf audio sink", + "Sink/Audio", + "Audio sink embedding the GConf-settings for audio output", + "Jan Schmidt <thaytan@mad.scientist.com>"); +} + +#define GST_TYPE_GCONF_PROFILE (gst_gconf_profile_get_type()) +static GType +gst_gconf_profile_get_type (void) +{ + static GType gconf_profile_type = 0; + static const GEnumValue gconf_profiles[] = { + {GCONF_PROFILE_SOUNDS, "Sound Events", "sounds"}, + {GCONF_PROFILE_MUSIC, "Music and Movies", "music"}, + {GCONF_PROFILE_CHAT, "Audio/Video Conferencing", "chat"}, + {0, NULL, NULL} + }; + + if (!gconf_profile_type) { + gconf_profile_type = + g_enum_register_static ("GstGConfProfile", gconf_profiles); + } + return gconf_profile_type; +} + +static void +gst_gconf_audio_sink_class_init (GstGConfAudioSinkClass * klass) +{ + GObjectClass *oklass = G_OBJECT_CLASS (klass); + GstElementClass *eklass = GST_ELEMENT_CLASS (klass); + + oklass->set_property = gst_gconf_audio_sink_set_property; + oklass->get_property = gst_gconf_audio_sink_get_property; + oklass->dispose = gst_gconf_audio_sink_dispose; + oklass->finalize = (GObjectFinalizeFunc) gst_gconf_audio_sink_finalize; + eklass->change_state = gst_gconf_audio_sink_change_state; + + g_object_class_install_property (oklass, PROP_PROFILE, + g_param_spec_enum ("profile", "Profile", "Profile", + GST_TYPE_GCONF_PROFILE, GCONF_PROFILE_SOUNDS, + G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); +} + +static void +gst_gconf_audio_sink_reset (GstGConfAudioSink * sink) +{ + gst_switch_sink_set_child (GST_SWITCH_SINK (sink), NULL); + + g_free (sink->gconf_str); + sink->gconf_str = NULL; +} + +static void +gst_gconf_audio_sink_init (GstGConfAudioSink * sink, + GstGConfAudioSinkClass * g_class) +{ + gst_gconf_audio_sink_reset (sink); + + sink->client = gconf_client_get_default (); + gconf_client_add_dir (sink->client, GST_GCONF_DIR "/default", + GCONF_CLIENT_PRELOAD_RECURSIVE, NULL); + + gst_gconf_switch_profile (sink, GCONF_PROFILE_SOUNDS); +} + +static void +gst_gconf_audio_sink_dispose (GObject * object) +{ + GstGConfAudioSink *sink = GST_GCONF_AUDIO_SINK (object); + + if (sink->client) { + gst_gconf_switch_profile (sink, GCONF_PROFILE_NONE); + g_object_unref (G_OBJECT (sink->client)); + sink->client = NULL; + } + + GST_CALL_PARENT (G_OBJECT_CLASS, dispose, (object)); +} + +static void +gst_gconf_audio_sink_finalize (GstGConfAudioSink * sink) +{ + g_free (sink->gconf_str); + + GST_CALL_PARENT (G_OBJECT_CLASS, finalize, ((GObject *) (sink))); +} + +static gboolean +do_change_child (GstGConfAudioSink * sink) +{ + const gchar *key; + gchar *new_gconf_str; + GstElement *new_kid; + + if (sink->profile == GCONF_PROFILE_NONE) + return FALSE; /* Can't switch to a 'NONE' sink */ + + key = gst_gconf_get_key_for_sink_profile (sink->profile); + new_gconf_str = gst_gconf_get_string (key); + + GST_LOG_OBJECT (sink, "old gconf string: %s", GST_STR_NULL (sink->gconf_str)); + GST_LOG_OBJECT (sink, "new gconf string: %s", GST_STR_NULL (new_gconf_str)); + + if (new_gconf_str != NULL && sink->gconf_str != NULL && + (strlen (new_gconf_str) == 0 || + strcmp (sink->gconf_str, new_gconf_str) == 0)) { + g_free (new_gconf_str); + GST_DEBUG_OBJECT (sink, + "GConf key was updated, but it didn't change. Ignoring"); + return TRUE; + } + + GST_DEBUG_OBJECT (sink, "GConf key changed: '%s' to '%s'", + GST_STR_NULL (sink->gconf_str), GST_STR_NULL (new_gconf_str)); + + GST_DEBUG_OBJECT (sink, "Creating new child for profile %d", sink->profile); + new_kid = + gst_gconf_render_bin_with_default (new_gconf_str, DEFAULT_AUDIOSINK); + + if (new_kid == NULL) { + GST_ELEMENT_ERROR (sink, LIBRARY, SETTINGS, (NULL), + ("Failed to render audio sink from GConf")); + goto fail; + } + + if (!gst_switch_sink_set_child (GST_SWITCH_SINK (sink), new_kid)) { + GST_WARNING_OBJECT (sink, "Failed to update child element"); + goto fail; + } + + g_free (sink->gconf_str); + sink->gconf_str = new_gconf_str; + + GST_DEBUG_OBJECT (sink, "done changing gconf audio sink"); + + return TRUE; + +fail: + g_free (new_gconf_str); + return FALSE; +} + +static void +gst_gconf_switch_profile (GstGConfAudioSink * sink, GstGConfProfile profile) +{ + if (sink->client == NULL) + return; + + if (sink->notify_id) { + GST_DEBUG_OBJECT (sink, "Unsubscribing old key %s for profile %d", + gst_gconf_get_key_for_sink_profile (sink->profile), sink->profile); + gconf_client_notify_remove (sink->client, sink->notify_id); + sink->notify_id = 0; + } + + sink->profile = profile; + if (profile != GCONF_PROFILE_NONE) { + const gchar *key = gst_gconf_get_key_for_sink_profile (sink->profile); + + GST_DEBUG_OBJECT (sink, "Subscribing to key %s for profile %d", + key, profile); + sink->notify_id = gconf_client_notify_add (sink->client, key, + cb_change_child, sink, NULL, NULL); + } +} + +static void +gst_gconf_audio_sink_set_property (GObject * object, guint prop_id, + const GValue * value, GParamSpec * pspec) +{ + GstGConfAudioSink *sink; + + sink = GST_GCONF_AUDIO_SINK (object); + + switch (prop_id) { + case PROP_PROFILE: + gst_gconf_switch_profile (sink, g_value_get_enum (value)); + break; + default: + break; + } +} + +static void +gst_gconf_audio_sink_get_property (GObject * object, guint prop_id, + GValue * value, GParamSpec * pspec) +{ + GstGConfAudioSink *sink; + + sink = GST_GCONF_AUDIO_SINK (object); + + switch (prop_id) { + case PROP_PROFILE: + g_value_set_enum (value, sink->profile); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + +static void +cb_change_child (GConfClient * client, + guint connection_id, GConfEntry * entry, gpointer data) +{ + do_change_child (GST_GCONF_AUDIO_SINK (data)); +} + +static GstStateChangeReturn +gst_gconf_audio_sink_change_state (GstElement * element, + GstStateChange transition) +{ + GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS; + GstGConfAudioSink *sink = GST_GCONF_AUDIO_SINK (element); + + switch (transition) { + case GST_STATE_CHANGE_NULL_TO_READY: + if (!do_change_child (sink)) { + gst_gconf_audio_sink_reset (sink); + return GST_STATE_CHANGE_FAILURE; + } + break; + default: + break; + } + + ret = GST_CALL_PARENT_WITH_DEFAULT (GST_ELEMENT_CLASS, change_state, + (element, transition), GST_STATE_CHANGE_SUCCESS); + + switch (transition) { + case GST_STATE_CHANGE_READY_TO_NULL: + gst_gconf_audio_sink_reset (sink); + break; + default: + break; + } + + return ret; +} diff --git a/ext/gconf/gstgconfaudiosink.h b/ext/gconf/gstgconfaudiosink.h new file mode 100644 index 0000000..2d730f3 --- /dev/null +++ b/ext/gconf/gstgconfaudiosink.h @@ -0,0 +1,62 @@ +/* GStreamer + * (c) 2005 Ronald S. Bultje <rbultje@ronald.bitfreak.net> + * + * 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. + */ + +#ifndef __GST_GCONF_AUDIO_SINK_H__ +#define __GST_GCONF_AUDIO_SINK_H__ + +#include <gst/gst.h> +#include <gconf/gconf-client.h> +#include "gstswitchsink.h" + +G_BEGIN_DECLS + +#define GST_TYPE_GCONF_AUDIO_SINK \ + (gst_gconf_audio_sink_get_type ()) +#define GST_GCONF_AUDIO_SINK(obj) \ + (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_GCONF_AUDIO_SINK, \ + GstGConfAudioSink)) +#define GST_GCONF_AUDIO_SINK_CLASS(klass) \ + (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_GCONF_AUDIO_SINK, \ + GstGConfAudioSinkClass)) +#define GST_IS_GCONF_AUDIO_SINK(obj) \ + (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_GCONF_AUDIO_SINK)) +#define GST_IS_GCONF_AUDIO_SINK_CLASS(klass) \ + (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_GCONF_AUDIO_SINK)) + +typedef struct _GstGConfAudioSink { + GstSwitchSink parent; + + /* explicit pointers to stuff used */ + GConfClient *client; + GstGConfProfile profile; + guint notify_id; + + /* Current gconf string */ + gchar *gconf_str; +} GstGConfAudioSink; + +typedef struct _GstGConfAudioSinkClass { + GstSwitchSinkClass parent_class; +} GstGConfAudioSinkClass; + +GType gst_gconf_audio_sink_get_type (void); + +G_END_DECLS + +#endif /* __GST_GCONF_AUDIO_SINK_H__ */ diff --git a/ext/gconf/gstgconfaudiosrc.c b/ext/gconf/gstgconfaudiosrc.c new file mode 100644 index 0000000..2fdd61f --- /dev/null +++ b/ext/gconf/gstgconfaudiosrc.c @@ -0,0 +1,210 @@ +/* GStreamer + * (c) 2005 Ronald S. Bultje <rbultje@ronald.bitfreak.net> + * (c) 2005 Tim-Philipp Müller <tim centricular net> + * + * 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. + */ +/** + * SECTION:element-gconfaudiosrc + * @see_also: #GstAlsaSrc, #GstAutoAudioSrc + * + * This element records sound from the audiosink that has been configured in + * GConf by the user. + * + * <refsect2> + * <title>Example launch line</title> + * |[ + * gst-launch gconfaudiosrc ! audioconvert ! wavenc ! filesink location=record.wav + * ]| Record from configured audioinput + * </refsect2> + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <string.h> + +#include "gstgconfelements.h" +#include "gstgconfaudiosrc.h" + +static void gst_gconf_audio_src_dispose (GObject * object); +static void gst_gconf_audio_src_finalize (GstGConfAudioSrc * src); +static void cb_toggle_element (GConfClient * client, + guint connection_id, GConfEntry * entry, gpointer data); +static GstStateChangeReturn +gst_gconf_audio_src_change_state (GstElement * element, + GstStateChange transition); + +GST_BOILERPLATE (GstGConfAudioSrc, gst_gconf_audio_src, GstSwitchSrc, + GST_TYPE_SWITCH_SRC); + +static void +gst_gconf_audio_src_base_init (gpointer klass) +{ + GstElementClass *eklass = GST_ELEMENT_CLASS (klass); + + gst_element_class_set_details_simple (eklass, "GConf audio source", + "Source/Audio", + "Audio source embedding the GConf-settings for audio input", + "GStreamer maintainers <gstreamer-devel@lists.sourceforge.net>"); +} + +static void +gst_gconf_audio_src_class_init (GstGConfAudioSrcClass * klass) +{ + GObjectClass *oklass = G_OBJECT_CLASS (klass); + GstElementClass *eklass = GST_ELEMENT_CLASS (klass); + + oklass->dispose = gst_gconf_audio_src_dispose; + oklass->finalize = (GObjectFinalizeFunc) gst_gconf_audio_src_finalize; + eklass->change_state = gst_gconf_audio_src_change_state; +} + +/* + * Hack to make negotiation work. + */ + +static gboolean +gst_gconf_audio_src_reset (GstGConfAudioSrc * src) +{ + gst_switch_src_set_child (GST_SWITCH_SRC (src), NULL); + + g_free (src->gconf_str); + src->gconf_str = NULL; + return TRUE; +} + +static void +gst_gconf_audio_src_init (GstGConfAudioSrc * src, + GstGConfAudioSrcClass * g_class) +{ + gst_gconf_audio_src_reset (src); + + src->client = gconf_client_get_default (); + gconf_client_add_dir (src->client, GST_GCONF_DIR, + GCONF_CLIENT_PRELOAD_RECURSIVE, NULL); + src->gconf_notify_id = gconf_client_notify_add (src->client, + GST_GCONF_DIR "/" GST_GCONF_AUDIOSRC_KEY, + cb_toggle_element, src, NULL, NULL); +} + +static void +gst_gconf_audio_src_dispose (GObject * object) +{ + GstGConfAudioSrc *src = GST_GCONF_AUDIO_SRC (object); + + if (src->client) { + if (src->gconf_notify_id) { + gconf_client_notify_remove (src->client, src->gconf_notify_id); + src->gconf_notify_id = 0; + } + + g_object_unref (G_OBJECT (src->client)); + src->client = NULL; + } + + GST_CALL_PARENT (G_OBJECT_CLASS, dispose, (object)); +} + +static void +gst_gconf_audio_src_finalize (GstGConfAudioSrc * src) +{ + g_free (src->gconf_str); + + GST_CALL_PARENT (G_OBJECT_CLASS, finalize, ((GObject *) (src))); +} + +static gboolean +do_toggle_element (GstGConfAudioSrc * src) +{ + GstElement *new_kid; + gchar *new_gconf_str; + + new_gconf_str = gst_gconf_get_string (GST_GCONF_AUDIOSRC_KEY); + if (new_gconf_str != NULL && src->gconf_str != NULL && + (strlen (new_gconf_str) == 0 || + strcmp (src->gconf_str, new_gconf_str) == 0)) { + g_free (new_gconf_str); + GST_DEBUG_OBJECT (src, "GConf key was updated, but it didn't change"); + return TRUE; + } + + GST_DEBUG_OBJECT (src, "GConf key changed: '%s' to '%s'", + GST_STR_NULL (src->gconf_str), GST_STR_NULL (new_gconf_str)); + + GST_DEBUG_OBJECT (src, "Creating new kid"); + if (!(new_kid = gst_gconf_get_default_audio_src ())) { + GST_ELEMENT_ERROR (src, LIBRARY, SETTINGS, (NULL), + ("Failed to render audio src from GConf")); + return FALSE; + } + + if (!gst_switch_src_set_child (GST_SWITCH_SRC (src), new_kid)) { + GST_WARNING_OBJECT (src, "Failed to update child element"); + goto fail; + } + + g_free (src->gconf_str); + src->gconf_str = new_gconf_str; + + GST_DEBUG_OBJECT (src, "done changing gconf audio src"); + + return TRUE; +fail: + g_free (new_gconf_str); + return FALSE; +} + +static void +cb_toggle_element (GConfClient * client, + guint connection_id, GConfEntry * entry, gpointer data) +{ + do_toggle_element (GST_GCONF_AUDIO_SRC (data)); +} + +static GstStateChangeReturn +gst_gconf_audio_src_change_state (GstElement * element, + GstStateChange transition) +{ + GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS; + GstGConfAudioSrc *src = GST_GCONF_AUDIO_SRC (element); + + switch (transition) { + case GST_STATE_CHANGE_NULL_TO_READY: + if (!do_toggle_element (src)) { + gst_gconf_audio_src_reset (src); + return GST_STATE_CHANGE_FAILURE; + } + break; + default: + break; + } + + ret = GST_CALL_PARENT_WITH_DEFAULT (GST_ELEMENT_CLASS, change_state, + (element, transition), GST_STATE_CHANGE_SUCCESS); + + switch (transition) { + case GST_STATE_CHANGE_READY_TO_NULL: + if (!gst_gconf_audio_src_reset (src)) + ret = GST_STATE_CHANGE_FAILURE; + break; + default: + break; + } + + return ret; +} diff --git a/ext/gconf/gstgconfaudiosrc.h b/ext/gconf/gstgconfaudiosrc.h new file mode 100644 index 0000000..40fb94b --- /dev/null +++ b/ext/gconf/gstgconfaudiosrc.h @@ -0,0 +1,57 @@ +/* GStreamer + * (c) 2005 Ronald S. Bultje <rbultje@ronald.bitfreak.net> + * (c) 2005 Tim-Philipp Müller <tim centricular net> + * + * 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. + */ + +#ifndef __GST_GCONF_AUDIO_SRC_H__ +#define __GST_GCONF_AUDIO_SRC_H__ + +#include <gst/gst.h> +#include <gconf/gconf-client.h> + +#include "gstswitchsrc.h" + +G_BEGIN_DECLS + +#define GST_TYPE_GCONF_AUDIO_SRC (gst_gconf_audio_src_get_type ()) +#define GST_GCONF_AUDIO_SRC(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_GCONF_AUDIO_SRC, GstGConfAudioSrc)) +#define GST_GCONF_AUDIO_SRC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_GCONF_AUDIO_SRC, GstGConfAudioSrcClass)) +#define GST_IS_GCONF_AUDIO_SRC(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_GCONF_AUDIO_SRC)) +#define GST_IS_GCONF_AUDIO_SRC_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_GCONF_AUDIO_SRC)) + +typedef struct _GstGConfAudioSrc { + GstSwitchSrc parent; + + /* explicit pointers to stuff used */ + GConfClient *client; + + guint gconf_notify_id; + + /* Current gconf string */ + gchar *gconf_str; +} GstGConfAudioSrc; + +typedef struct _GstGConfAudioSrcClass { + GstSwitchSrcClass parent_class; +} GstGConfAudioSrcClass; + +GType gst_gconf_audio_src_get_type (void); + +G_END_DECLS + +#endif /* __GST_GCONF_AUDIO_SRC_H__ */ diff --git a/ext/gconf/gstgconfelements.c b/ext/gconf/gstgconfelements.c new file mode 100644 index 0000000..06f0113 --- /dev/null +++ b/ext/gconf/gstgconfelements.c @@ -0,0 +1,59 @@ +/* GStreamer + * (c) 2005 Ronald S. Bultje <rbultje@ronald.bitfreak.net> + * + * 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 <gst/gst.h> + +#include "gstgconfelements.h" + +#include "gstgconfaudiosink.h" +#include "gstgconfaudiosrc.h" +#include "gstgconfvideosink.h" +#include "gstgconfvideosrc.h" + +GST_DEBUG_CATEGORY (gconf_debug); + +static gboolean +plugin_init (GstPlugin * plugin) +{ + GST_DEBUG_CATEGORY_INIT (gconf_debug, "gconf", 0, + "GConf/GStreamer audio/video output wrapper elements"); + + if (!gst_element_register (plugin, "gconfvideosink", + GST_RANK_NONE, GST_TYPE_GCONF_VIDEO_SINK) || + !gst_element_register (plugin, "gconfvideosrc", + GST_RANK_NONE, GST_TYPE_GCONF_VIDEO_SRC) || + !gst_element_register (plugin, "gconfaudiosink", + GST_RANK_NONE, GST_TYPE_GCONF_AUDIO_SINK) || + !gst_element_register (plugin, "gconfaudiosrc", + GST_RANK_NONE, GST_TYPE_GCONF_AUDIO_SRC)) { + return FALSE; + } + + return TRUE; +} + +GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, + GST_VERSION_MINOR, + "gconfelements", + "elements wrapping the GStreamer/GConf audio/video output settings", + plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN) diff --git a/ext/gconf/gstgconfelements.h b/ext/gconf/gstgconfelements.h new file mode 100644 index 0000000..872b2f2 --- /dev/null +++ b/ext/gconf/gstgconfelements.h @@ -0,0 +1,28 @@ +/* GStreamer + * (c) 2005 Ronald S. Bultje <rbultje@ronald.bitfreak.net> + * + * 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. + */ + +#ifndef __GST_GCONF_ELEMENTS_H__ +#define __GST_GCONF_ELEMENTS_H__ + +#include "gstgconf.h" + +GST_DEBUG_CATEGORY_EXTERN (gconf_debug); +#define GST_CAT_DEFAULT gconf_debug + +#endif /* __GST_GCONF_ELEMENTS_H__ */ diff --git a/ext/gconf/gstgconfvideosink.c b/ext/gconf/gstgconfvideosink.c new file mode 100644 index 0000000..10fe90d --- /dev/null +++ b/ext/gconf/gstgconfvideosink.c @@ -0,0 +1,210 @@ +/* GStreamer + * (c) 2005 Ronald S. Bultje <rbultje@ronald.bitfreak.net> + * + * 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. + */ +/** + * SECTION:element-gconfvideosink + * + * This element outputs video to the videosink that has been configured in + * GConf by the user. + * + * <refsect2> + * <title>Example launch line</title> + * |[ + * gst-launch filesrc location=foo.ogg ! decodebin ! ffmpegcolorspace ! gconfvideosink + * ]| Play on configured videosink + * </refsect2> + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <string.h> + +#include "gstgconfelements.h" +#include "gstgconfvideosink.h" + +static void gst_gconf_video_sink_dispose (GObject * object); +static void gst_gconf_video_sink_finalize (GstGConfVideoSink * sink); +static void cb_toggle_element (GConfClient * client, + guint connection_id, GConfEntry * entry, gpointer data); +static GstStateChangeReturn +gst_gconf_video_sink_change_state (GstElement * element, + GstStateChange transition); + +GST_BOILERPLATE (GstGConfVideoSink, gst_gconf_video_sink, GstSwitchSink, + GST_TYPE_SWITCH_SINK); + +static void +gst_gconf_video_sink_base_init (gpointer klass) +{ + GstElementClass *eklass = GST_ELEMENT_CLASS (klass); + + gst_element_class_set_details_simple (eklass, "GConf video sink", + "Sink/Video", + "Video sink embedding the GConf-settings for video output", + "GStreamer maintainers <gstreamer-devel@lists.sourceforge.net>"); +} + +static void +gst_gconf_video_sink_class_init (GstGConfVideoSinkClass * klass) +{ + GObjectClass *oklass = G_OBJECT_CLASS (klass); + GstElementClass *eklass = GST_ELEMENT_CLASS (klass); + + oklass->dispose = gst_gconf_video_sink_dispose; + oklass->finalize = (GObjectFinalizeFunc) gst_gconf_video_sink_finalize; + eklass->change_state = gst_gconf_video_sink_change_state; +} + +/* + * Hack to make negotiation work. + */ + +static void +gst_gconf_video_sink_reset (GstGConfVideoSink * sink) +{ + gst_switch_sink_set_child (GST_SWITCH_SINK (sink), NULL); + + g_free (sink->gconf_str); + sink->gconf_str = NULL; +} + +static void +gst_gconf_video_sink_init (GstGConfVideoSink * sink, + GstGConfVideoSinkClass * g_class) +{ + gst_gconf_video_sink_reset (sink); + + sink->client = gconf_client_get_default (); + gconf_client_add_dir (sink->client, GST_GCONF_DIR, + GCONF_CLIENT_PRELOAD_RECURSIVE, NULL); + sink->notify_id = gconf_client_notify_add (sink->client, + GST_GCONF_DIR "/" GST_GCONF_VIDEOSINK_KEY, + cb_toggle_element, sink, NULL, NULL); +} + +static void +gst_gconf_video_sink_dispose (GObject * object) +{ + GstGConfVideoSink *sink = GST_GCONF_VIDEO_SINK (object); + + if (sink->client) { + if (sink->notify_id != 0) + gconf_client_notify_remove (sink->client, sink->notify_id); + + g_object_unref (G_OBJECT (sink->client)); + sink->client = NULL; + } + + GST_CALL_PARENT (G_OBJECT_CLASS, dispose, (object)); +} + +static void +gst_gconf_video_sink_finalize (GstGConfVideoSink * sink) +{ + g_free (sink->gconf_str); + + GST_CALL_PARENT (G_OBJECT_CLASS, finalize, ((GObject *) (sink))); +} + +static gboolean +do_change_child (GstGConfVideoSink * sink) +{ + gchar *new_gconf_str; + GstElement *new_kid; + + new_gconf_str = gst_gconf_get_string (GST_GCONF_VIDEOSINK_KEY); + + GST_LOG_OBJECT (sink, "old gconf string: %s", GST_STR_NULL (sink->gconf_str)); + GST_LOG_OBJECT (sink, "new gconf string: %s", GST_STR_NULL (new_gconf_str)); + + if (new_gconf_str != NULL && sink->gconf_str != NULL && + (strlen (new_gconf_str) == 0 || + strcmp (sink->gconf_str, new_gconf_str) == 0)) { + g_free (new_gconf_str); + GST_DEBUG_OBJECT (sink, + "GConf key was updated, but it didn't change. Ignoring"); + return TRUE; + } + + GST_DEBUG_OBJECT (sink, "GConf key changed: '%s' to '%s'", + GST_STR_NULL (sink->gconf_str), GST_STR_NULL (new_gconf_str)); + + GST_DEBUG_OBJECT (sink, "Creating new kid"); + if (!(new_kid = gst_gconf_get_default_video_sink ())) { + GST_ELEMENT_ERROR (sink, LIBRARY, SETTINGS, (NULL), + ("Failed to render video sink from GConf")); + return FALSE; + } + + if (!gst_switch_sink_set_child (GST_SWITCH_SINK (sink), new_kid)) { + GST_WARNING_OBJECT (sink, "Failed to update child element"); + goto fail; + } + + g_free (sink->gconf_str); + sink->gconf_str = new_gconf_str; + + GST_DEBUG_OBJECT (sink, "done changing gconf video sink"); + + return TRUE; + +fail: + g_free (new_gconf_str); + return FALSE; +} + +static void +cb_toggle_element (GConfClient * client, + guint connection_id, GConfEntry * entry, gpointer data) +{ + do_change_child (GST_GCONF_VIDEO_SINK (data)); +} + +static GstStateChangeReturn +gst_gconf_video_sink_change_state (GstElement * element, + GstStateChange transition) +{ + GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS; + GstGConfVideoSink *sink = GST_GCONF_VIDEO_SINK (element); + + switch (transition) { + case GST_STATE_CHANGE_NULL_TO_READY: + if (!do_change_child (sink)) { + gst_gconf_video_sink_reset (sink); + return GST_STATE_CHANGE_FAILURE; + } + break; + default: + break; + } + + ret = GST_CALL_PARENT_WITH_DEFAULT (GST_ELEMENT_CLASS, change_state, + (element, transition), GST_STATE_CHANGE_SUCCESS); + + switch (transition) { + case GST_STATE_CHANGE_READY_TO_NULL: + gst_gconf_video_sink_reset (sink); + break; + default: + break; + } + + return ret; +} diff --git a/ext/gconf/gstgconfvideosink.h b/ext/gconf/gstgconfvideosink.h new file mode 100644 index 0000000..faaa0a8 --- /dev/null +++ b/ext/gconf/gstgconfvideosink.h @@ -0,0 +1,64 @@ +/* GStreamer + * (c) 2005 Ronald S. Bultje <rbultje@ronald.bitfreak.net> + * + * 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. + */ + +#ifndef __GST_GCONF_VIDEO_SINK_H__ +#define __GST_GCONF_VIDEO_SINK_H__ + +#include <gst/gst.h> +#include <gconf/gconf-client.h> + +#include "gstswitchsink.h" + +G_BEGIN_DECLS + +#define GST_TYPE_GCONF_VIDEO_SINK \ + (gst_gconf_video_sink_get_type ()) +#define GST_GCONF_VIDEO_SINK(obj) \ + (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_GCONF_VIDEO_SINK, \ + GstGConfVideoSink)) +#define GST_GCONF_VIDEO_SINK_CLASS(klass) \ + (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_GCONF_VIDEO_SINK, \ + GstGConfVideoSinkClass)) +#define GST_IS_GCONF_VIDEO_SINK(obj) \ + (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_GCONF_VIDEO_SINK)) +#define GST_IS_GCONF_VIDEO_SINK_CLASS(klass) \ + (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_GCONF_VIDEO_SINK)) + +typedef struct _GstGConfVideoSink { + GstSwitchSink parent; + + /* explicit pointers to stuff used */ + GConfClient *client; + + /* gconf notify id */ + guint notify_id; + + /* Current gconf string */ + gchar *gconf_str; +} GstGConfVideoSink; + +typedef struct _GstGConfVideoSinkClass { + GstSwitchSinkClass parent_class; +} GstGConfVideoSinkClass; + +GType gst_gconf_video_sink_get_type (void); + +G_END_DECLS + +#endif /* __GST_GCONF_VIDEO_SINK_H__ */ diff --git a/ext/gconf/gstgconfvideosrc.c b/ext/gconf/gstgconfvideosrc.c new file mode 100644 index 0000000..2d9d5df --- /dev/null +++ b/ext/gconf/gstgconfvideosrc.c @@ -0,0 +1,209 @@ +/* GStreamer + * (c) 2005 Ronald S. Bultje <rbultje@ronald.bitfreak.net> + * (c) 2005 Tim-Philipp Müller <tim centricular net> + * + * 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. + */ +/** + * SECTION:element-gconfvideosrc + * @see_also: #GstAlsaSrc, #GstAutoVideoSrc + * + * This element records video from the videosink that has been configured in + * GConf by the user. + * + * <refsect2> + * <title>Example launch line</title> + * |[ + * gst-launch gconfvideosrc ! theoraenc ! oggmux ! filesink location=record.ogg + * ]| Record from configured videoinput + * </refsect2> + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <string.h> + +#include "gstgconfelements.h" +#include "gstgconfvideosrc.h" + +static void gst_gconf_video_src_dispose (GObject * object); +static void gst_gconf_video_src_finalize (GstGConfVideoSrc * src); +static void cb_toggle_element (GConfClient * client, + guint connection_id, GConfEntry * entry, gpointer data); +static GstStateChangeReturn +gst_gconf_video_src_change_state (GstElement * element, + GstStateChange transition); + +GST_BOILERPLATE (GstGConfVideoSrc, gst_gconf_video_src, GstSwitchSrc, + GST_TYPE_SWITCH_SRC); + +static void +gst_gconf_video_src_base_init (gpointer klass) +{ + GstElementClass *eklass = GST_ELEMENT_CLASS (klass); + + gst_element_class_set_details_simple (eklass, "GConf video source", + "Source/Video", + "Video source embedding the GConf-settings for video input", + "GStreamer maintainers <gstreamer-devel@lists.sourceforge.net>"); +} + +static void +gst_gconf_video_src_class_init (GstGConfVideoSrcClass * klass) +{ + GObjectClass *oklass = G_OBJECT_CLASS (klass); + GstElementClass *eklass = GST_ELEMENT_CLASS (klass); + + oklass->dispose = gst_gconf_video_src_dispose; + oklass->finalize = (GObjectFinalizeFunc) gst_gconf_video_src_finalize; + eklass->change_state = gst_gconf_video_src_change_state; +} + +/* + * Hack to make negotiation work. + */ + +static gboolean +gst_gconf_video_src_reset (GstGConfVideoSrc * src) +{ + gst_switch_src_set_child (GST_SWITCH_SRC (src), NULL); + + g_free (src->gconf_str); + src->gconf_str = NULL; + + return TRUE; +} + +static void +gst_gconf_video_src_init (GstGConfVideoSrc * src, + GstGConfVideoSrcClass * g_class) +{ + gst_gconf_video_src_reset (src); + + src->client = gconf_client_get_default (); + gconf_client_add_dir (src->client, GST_GCONF_DIR, + GCONF_CLIENT_PRELOAD_RECURSIVE, NULL); + src->notify_id = gconf_client_notify_add (src->client, + GST_GCONF_DIR "/" GST_GCONF_VIDEOSRC_KEY, + cb_toggle_element, src, NULL, NULL); +} + +static void +gst_gconf_video_src_dispose (GObject * object) +{ + GstGConfVideoSrc *src = GST_GCONF_VIDEO_SRC (object); + + if (src->client) { + if (src->notify_id != 0) + gconf_client_notify_remove (src->client, src->notify_id); + + g_object_unref (G_OBJECT (src->client)); + src->client = NULL; + } + + GST_CALL_PARENT (G_OBJECT_CLASS, dispose, (object)); +} + +static void +gst_gconf_video_src_finalize (GstGConfVideoSrc * src) +{ + g_free (src->gconf_str); + + GST_CALL_PARENT (G_OBJECT_CLASS, finalize, ((GObject *) (src))); +} + +static gboolean +do_toggle_element (GstGConfVideoSrc * src) +{ + GstElement *new_kid; + gchar *new_gconf_str; + + new_gconf_str = gst_gconf_get_string (GST_GCONF_VIDEOSRC_KEY); + if (new_gconf_str != NULL && src->gconf_str != NULL && + (strlen (new_gconf_str) == 0 || + strcmp (src->gconf_str, new_gconf_str) == 0)) { + g_free (new_gconf_str); + GST_DEBUG_OBJECT (src, "GConf key was updated, but it didn't change"); + return TRUE; + } + + GST_DEBUG_OBJECT (src, "GConf key changed: '%s' to '%s'", + GST_STR_NULL (src->gconf_str), GST_STR_NULL (new_gconf_str)); + + GST_DEBUG_OBJECT (src, "Creating new kid"); + if (!(new_kid = gst_gconf_get_default_video_src ())) { + GST_ELEMENT_ERROR (src, LIBRARY, SETTINGS, (NULL), + ("Failed to render video src from GConf")); + return FALSE; + } + + if (!gst_switch_src_set_child (GST_SWITCH_SRC (src), new_kid)) { + GST_WARNING_OBJECT (src, "Failed to update child element"); + goto fail; + } + + g_free (src->gconf_str); + src->gconf_str = new_gconf_str; + + GST_DEBUG_OBJECT (src, "done changing gconf video src"); + + return TRUE; +fail: + g_free (new_gconf_str); + return FALSE; +} + +static void +cb_toggle_element (GConfClient * client, + guint connection_id, GConfEntry * entry, gpointer data) +{ + do_toggle_element (GST_GCONF_VIDEO_SRC (data)); +} + +static GstStateChangeReturn +gst_gconf_video_src_change_state (GstElement * element, + GstStateChange transition) +{ + GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS; + GstGConfVideoSrc *src = GST_GCONF_VIDEO_SRC (element); + + switch (transition) { + case GST_STATE_CHANGE_NULL_TO_READY: + if (!do_toggle_element (src)) { + gst_gconf_video_src_reset (src); + return GST_STATE_CHANGE_FAILURE; + } + break; + default: + break; + } + + ret = GST_CALL_PARENT_WITH_DEFAULT (GST_ELEMENT_CLASS, change_state, + (element, transition), GST_STATE_CHANGE_SUCCESS); + + switch (transition) { + case GST_STATE_CHANGE_READY_TO_NULL: + if (!gst_gconf_video_src_reset (src)) + ret = GST_STATE_CHANGE_FAILURE; + break; + default: + break; + } + + return ret; +} diff --git a/ext/gconf/gstgconfvideosrc.h b/ext/gconf/gstgconfvideosrc.h new file mode 100644 index 0000000..5c8300d --- /dev/null +++ b/ext/gconf/gstgconfvideosrc.h @@ -0,0 +1,58 @@ +/* GStreamer + * (c) 2005 Ronald S. Bultje <rbultje@ronald.bitfreak.net> + * (c) 2005 Tim-Philipp Müller <tim centricular net> + * + * 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. + */ + +#ifndef __GST_GCONF_VIDEO_SRC_H__ +#define __GST_GCONF_VIDEO_SRC_H__ + +#include <gst/gst.h> +#include <gconf/gconf-client.h> + +#include "gstswitchsrc.h" + +G_BEGIN_DECLS + +#define GST_TYPE_GCONF_VIDEO_SRC (gst_gconf_video_src_get_type ()) +#define GST_GCONF_VIDEO_SRC(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_GCONF_VIDEO_SRC, GstGConfVideoSrc)) +#define GST_GCONF_VIDEO_SRC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_GCONF_VIDEO_SRC, GstGConfVideoSrcClass)) +#define GST_IS_GCONF_VIDEO_SRC(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_GCONF_VIDEO_SRC)) +#define GST_IS_GCONF_VIDEO_SRC_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_GCONF_VIDEO_SRC)) + +typedef struct _GstGConfVideoSrc { + GstSwitchSrc parent; + + /* explicit pointers to stuff used */ + GConfClient *client; + + /* gconf key notification id */ + guint notify_id; + + /* Current gconf string */ + gchar *gconf_str; +} GstGConfVideoSrc; + +typedef struct _GstGConfVideoSrcClass { + GstSwitchSrcClass parent_class; +} GstGConfVideoSrcClass; + +GType gst_gconf_video_src_get_type (void); + +G_END_DECLS + +#endif /* __GST_GCONF_VIDEO_SRC_H__ */ diff --git a/ext/gconf/gstswitchsink.c b/ext/gconf/gstswitchsink.c new file mode 100644 index 0000000..1fccf68 --- /dev/null +++ b/ext/gconf/gstswitchsink.c @@ -0,0 +1,270 @@ +/* GStreamer + * Copyright (c) 2005 Ronald S. Bultje <rbultje@ronald.bitfreak.net> + * Copyright (c) 2006 Jürg Billeter <j@bitron.ch> + * Copyright (c) 2007 Jan Schmidt <thaytan@noraisin.net> + * + * 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 <string.h> + +#include "gstswitchsink.h" + +GST_DEBUG_CATEGORY_STATIC (switch_debug); +#define GST_CAT_DEFAULT switch_debug + +static void gst_switch_sink_dispose (GObject * object); +static GstStateChangeReturn +gst_switch_sink_change_state (GstElement * element, GstStateChange transition); + +enum +{ + PROP_0 +}; + +GST_BOILERPLATE (GstSwitchSink, gst_switch_sink, GstBin, GST_TYPE_BIN); + +static void +gst_switch_sink_base_init (gpointer klass) +{ + GST_DEBUG_CATEGORY_INIT (switch_debug, "switchsink", 0, "switchsink element"); +} + +static void +gst_switch_sink_class_init (GstSwitchSinkClass * klass) +{ + GObjectClass *oklass = G_OBJECT_CLASS (klass); + GstElementClass *eklass = GST_ELEMENT_CLASS (klass); + static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink", + GST_PAD_SINK, + GST_PAD_ALWAYS, + GST_STATIC_CAPS_ANY); + GstPadTemplate *child_pad_templ; + + oklass->dispose = gst_switch_sink_dispose; + eklass->change_state = gst_switch_sink_change_state; + + /* Provide a default pad template if the child didn't */ + child_pad_templ = gst_element_class_get_pad_template (eklass, "sink"); + if (child_pad_templ == NULL) { + gst_element_class_add_pad_template (eklass, + gst_static_pad_template_get (&sink_template)); + } +} + +static gboolean +gst_switch_sink_reset (GstSwitchSink * sink) +{ + /* this will install fakesink if no other child has been set, + * otherwise we rely on the subclass to know when to unset its + * custom kid */ + if (sink->kid == NULL) { + return gst_switch_sink_set_child (sink, NULL); + } + + return TRUE; +} + +static void +gst_switch_sink_init (GstSwitchSink * sink, GstSwitchSinkClass * g_class) +{ + GstElementClass *eklass = GST_ELEMENT_GET_CLASS (sink); + GstPadTemplate *templ; + + templ = gst_element_class_get_pad_template (eklass, "sink"); + sink->pad = gst_ghost_pad_new_no_target_from_template ("sink", templ); + gst_element_add_pad (GST_ELEMENT (sink), sink->pad); + + gst_switch_sink_reset (sink); + + GST_OBJECT_FLAG_SET (sink, GST_ELEMENT_IS_SINK); +} + +static void +gst_switch_sink_dispose (GObject * object) +{ + GstSwitchSink *sink = GST_SWITCH_SINK (object); + GstObject *new_kid, *kid; + + GST_OBJECT_LOCK (sink); + new_kid = GST_OBJECT_CAST (sink->new_kid); + sink->new_kid = NULL; + + kid = GST_OBJECT_CAST (sink->kid); + sink->kid = NULL; + GST_OBJECT_UNLOCK (sink); + + gst_object_replace (&new_kid, NULL); + gst_object_replace (&kid, NULL); + + GST_CALL_PARENT (G_OBJECT_CLASS, dispose, (object)); +} + +static gboolean +gst_switch_sink_commit_new_kid (GstSwitchSink * sink) +{ + GstPad *targetpad; + GstState kid_state; + GstElement *new_kid, *old_kid; + gboolean is_fakesink = FALSE; + GstBus *bus; + + /* need locking around member accesses */ + GST_OBJECT_LOCK (sink); + /* If we're currently changing state, set the child to the next state + * we're transitioning too, rather than our current state which is + * about to change */ + if (GST_STATE_NEXT (sink) != GST_STATE_VOID_PENDING) + kid_state = GST_STATE_NEXT (sink); + else + kid_state = GST_STATE (sink); + + new_kid = sink->new_kid ? gst_object_ref (sink->new_kid) : NULL; + sink->new_kid = NULL; + GST_OBJECT_UNLOCK (sink); + + /* Fakesink by default if NULL is passed as the new child */ + if (new_kid == NULL) { + GST_DEBUG_OBJECT (sink, "Replacing kid with fakesink"); + new_kid = gst_element_factory_make ("fakesink", "testsink"); + if (new_kid == NULL) { + GST_ERROR_OBJECT (sink, "Failed to create fakesink"); + return FALSE; + } + /* Add a reference, as it would if the element came from sink->new_kid */ + gst_object_ref (new_kid); + g_object_set (new_kid, "sync", TRUE, NULL); + is_fakesink = TRUE; + } else { + GST_DEBUG_OBJECT (sink, "Setting new kid"); + } + + /* set temporary bus of our own to catch error messages from the child + * (could we just set our own bus on it, or would the state change messages + * from the not-yet-added element confuse the state change algorithm? Let's + * play it safe for now) */ + bus = gst_bus_new (); + gst_element_set_bus (new_kid, bus); + gst_object_unref (bus); + + if (gst_element_set_state (new_kid, kid_state) == GST_STATE_CHANGE_FAILURE) { + GstMessage *msg; + + /* check if child posted an error message and if so re-post it on our bus + * so that the application gets to see a decent error and not our generic + * fallback error message which is completely indecipherable to the user */ + msg = gst_bus_pop_filtered (GST_ELEMENT_BUS (new_kid), GST_MESSAGE_ERROR); + if (msg) { + GST_INFO_OBJECT (sink, "Forwarding kid error: %" GST_PTR_FORMAT, msg); + gst_element_post_message (GST_ELEMENT (sink), msg); + } + GST_ELEMENT_ERROR (sink, CORE, STATE_CHANGE, (NULL), + ("Failed to set state on new child.")); + gst_element_set_bus (new_kid, NULL); + gst_object_unref (new_kid); + return FALSE; + } + gst_element_set_bus (new_kid, NULL); + gst_bin_add (GST_BIN (sink), new_kid); + + /* Now, replace the existing child */ + GST_OBJECT_LOCK (sink); + old_kid = sink->kid; + sink->kid = new_kid; + /* Mark whether a custom kid or fakesink has been installed */ + sink->have_kid = !is_fakesink; + GST_OBJECT_UNLOCK (sink); + + /* kill old element */ + if (old_kid) { + GST_DEBUG_OBJECT (sink, "Removing old kid %" GST_PTR_FORMAT, old_kid); + gst_element_set_state (old_kid, GST_STATE_NULL); + gst_bin_remove (GST_BIN (sink), old_kid); + gst_object_unref (old_kid); + /* Don't lose the SINK flag */ + GST_OBJECT_FLAG_SET (sink, GST_ELEMENT_IS_SINK); + } + + /* re-attach ghostpad */ + GST_DEBUG_OBJECT (sink, "Creating new ghostpad"); + targetpad = gst_element_get_static_pad (sink->kid, "sink"); + gst_ghost_pad_set_target (GST_GHOST_PAD (sink->pad), targetpad); + gst_object_unref (targetpad); + GST_DEBUG_OBJECT (sink, "done changing child of switchsink"); + + /* FIXME: Push new-segment info and pre-roll buffer(s) into the kid */ + + return TRUE; +} + +gboolean +gst_switch_sink_set_child (GstSwitchSink * sink, GstElement * new_kid) +{ + GstState cur, next; + GstElement **p_kid; + + /* Nothing to do if clearing the child and we've already installed fakesink */ + if (new_kid == NULL && sink->kid != NULL && sink->have_kid == FALSE) + return TRUE; + + /* Store the new kid to be committed later */ + GST_OBJECT_LOCK (sink); + cur = GST_STATE (sink); + next = GST_STATE_NEXT (sink); + p_kid = &sink->new_kid; + gst_object_replace ((GstObject **) p_kid, (GstObject *) new_kid); + GST_OBJECT_UNLOCK (sink); + if (new_kid) + gst_object_unref (new_kid); + + /* Sometime, it would be lovely to allow sink changes even when + * already running, but this involves sending an appropriate new-segment + * and possibly prerolling etc */ + /* FIXME: Block the pad and replace the kid when it completes */ + if (cur > GST_STATE_READY || next == GST_STATE_PAUSED) { + GST_DEBUG_OBJECT (sink, + "Switch-sink is already running. Ignoring change of child."); + gst_object_unref (new_kid); + return TRUE; + } + + return gst_switch_sink_commit_new_kid (sink); +} + +static GstStateChangeReturn +gst_switch_sink_change_state (GstElement * element, GstStateChange transition) +{ + GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS; + GstSwitchSink *sink = GST_SWITCH_SINK (element); + + ret = GST_CALL_PARENT_WITH_DEFAULT (GST_ELEMENT_CLASS, change_state, + (element, transition), GST_STATE_CHANGE_SUCCESS); + + switch (transition) { + case GST_STATE_CHANGE_READY_TO_NULL: + if (!gst_switch_sink_reset (sink)) + ret = GST_STATE_CHANGE_FAILURE; + break; + default: + break; + } + + return ret; +} diff --git a/ext/gconf/gstswitchsink.h b/ext/gconf/gstswitchsink.h new file mode 100644 index 0000000..556e755 --- /dev/null +++ b/ext/gconf/gstswitchsink.h @@ -0,0 +1,62 @@ +/* GStreamer + * Copyright (c) 2005 Ronald S. Bultje <rbultje@ronald.bitfreak.net> + * Copyright (c) 2007 Jan Schmidt <thaytan@mad.scientist.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. + */ + +#ifndef __GST_SWITCH_SINK_H__ +#define __GST_SWITCH_SINK_H__ + +#include <gst/gst.h> + +G_BEGIN_DECLS + +#define GST_TYPE_SWITCH_SINK \ + (gst_switch_sink_get_type ()) +#define GST_SWITCH_SINK(obj) \ + (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_SWITCH_SINK, \ + GstSwitchSink)) +#define GST_SWITCH_SINK_CLASS(klass) \ + (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_SWITCH_SINK, \ + GstSwitchSinkClass)) +#define GST_IS_SWITCH_SINK(obj) \ + (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_SWITCH_SINK)) +#define GST_IS_SWITCH_SINK_CLASS(klass) \ + (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_SWITCH_SINK)) + +typedef struct _GstSwitchSink { + GstBin parent; + + GstElement *kid; + GstElement *new_kid; + GstPad *pad; + + /* If a custom child has been set... */ + gboolean have_kid; +} GstSwitchSink; + +typedef struct _GstSwitchSinkClass { + GstBinClass parent_class; +} GstSwitchSinkClass; + +GType gst_switch_sink_get_type (void); + +gboolean gst_switch_sink_set_child (GstSwitchSink *ssink, GstElement *new_kid); + +G_END_DECLS + +#endif /* __GST_SWITCH_SINK_H__ */ diff --git a/ext/gconf/gstswitchsrc.c b/ext/gconf/gstswitchsrc.c new file mode 100644 index 0000000..0136e4a --- /dev/null +++ b/ext/gconf/gstswitchsrc.c @@ -0,0 +1,262 @@ +/* GStreamer + * Copyright (c) 2005 Ronald S. Bultje <rbultje@ronald.bitfreak.net> + * Copyright (c) 2006 Jürg Billeter <j@bitron.ch> + * Copyright (c) 2007 Jan Schmidt <thaytan@noraisin.net> + * Copyright (c) 2010 Sebastian Dröge <sebastian.droege@collabora.co.uk> + * + * 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 <string.h> + +#include "gstswitchsrc.h" + +GST_DEBUG_CATEGORY_STATIC (switch_debug); +#define GST_CAT_DEFAULT switch_debug + +static void gst_switch_src_dispose (GObject * object); +static GstStateChangeReturn +gst_switch_src_change_state (GstElement * element, GstStateChange transition); + +GST_BOILERPLATE (GstSwitchSrc, gst_switch_src, GstBin, GST_TYPE_BIN); + +static void +gst_switch_src_base_init (gpointer klass) +{ + GST_DEBUG_CATEGORY_INIT (switch_debug, "switchsrc", 0, "switchsrc element"); +} + +static void +gst_switch_src_class_init (GstSwitchSrcClass * klass) +{ + GObjectClass *oklass = G_OBJECT_CLASS (klass); + GstElementClass *eklass = GST_ELEMENT_CLASS (klass); + static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src", + GST_PAD_SRC, + GST_PAD_ALWAYS, + GST_STATIC_CAPS_ANY); + GstPadTemplate *child_pad_templ; + + oklass->dispose = gst_switch_src_dispose; + eklass->change_state = gst_switch_src_change_state; + + /* Provide a default pad template if the child didn't */ + child_pad_templ = gst_element_class_get_pad_template (eklass, "src"); + if (child_pad_templ == NULL) { + gst_element_class_add_pad_template (eklass, + gst_static_pad_template_get (&src_template)); + } +} + +static gboolean +gst_switch_src_reset (GstSwitchSrc * src) +{ + /* this will install fakesrc if no other child has been set, + * otherwise we rely on the subclass to know when to unset its + * custom kid */ + if (src->kid == NULL) { + return gst_switch_src_set_child (src, NULL); + } + + return TRUE; +} + +static void +gst_switch_src_init (GstSwitchSrc * src, GstSwitchSrcClass * g_class) +{ + GstElementClass *eklass = GST_ELEMENT_GET_CLASS (src); + GstPadTemplate *templ; + + templ = gst_element_class_get_pad_template (eklass, "src"); + src->pad = gst_ghost_pad_new_no_target_from_template ("src", templ); + gst_element_add_pad (GST_ELEMENT (src), src->pad); + + gst_switch_src_reset (src); + + GST_OBJECT_FLAG_SET (src, GST_ELEMENT_IS_SOURCE); +} + +static void +gst_switch_src_dispose (GObject * object) +{ + GstSwitchSrc *src = GST_SWITCH_SRC (object); + GstObject *new_kid, *kid; + + GST_OBJECT_LOCK (src); + new_kid = GST_OBJECT_CAST (src->new_kid); + src->new_kid = NULL; + + kid = GST_OBJECT_CAST (src->kid); + src->kid = NULL; + GST_OBJECT_UNLOCK (src); + + gst_object_replace (&new_kid, NULL); + gst_object_replace (&kid, NULL); + + GST_CALL_PARENT (G_OBJECT_CLASS, dispose, (object)); +} + +static gboolean +gst_switch_src_commit_new_kid (GstSwitchSrc * src) +{ + GstPad *targetpad; + GstState kid_state; + GstElement *new_kid, *old_kid; + gboolean is_fakesrc = FALSE; + GstBus *bus; + + /* need locking around member accesses */ + GST_OBJECT_LOCK (src); + /* If we're currently changing state, set the child to the next state + * we're transitioning too, rather than our current state which is + * about to change */ + if (GST_STATE_NEXT (src) != GST_STATE_VOID_PENDING) + kid_state = GST_STATE_NEXT (src); + else + kid_state = GST_STATE (src); + + new_kid = src->new_kid ? gst_object_ref (src->new_kid) : NULL; + src->new_kid = NULL; + GST_OBJECT_UNLOCK (src); + + /* Fakesrc by default if NULL is passed as the new child */ + if (new_kid == NULL) { + GST_DEBUG_OBJECT (src, "Replacing kid with fakesrc"); + new_kid = gst_element_factory_make ("fakesrc", "testsrc"); + if (new_kid == NULL) { + GST_ERROR_OBJECT (src, "Failed to create fakesrc"); + return FALSE; + } + /* Add a reference, as it would if the element came from src->new_kid */ + gst_object_ref (new_kid); + is_fakesrc = TRUE; + } else { + GST_DEBUG_OBJECT (src, "Setting new kid"); + } + + /* set temporary bus of our own to catch error messages from the child + * (could we just set our own bus on it, or would the state change messages + * from the not-yet-added element confuse the state change algorithm? Let's + * play it safe for now) */ + bus = gst_bus_new (); + gst_element_set_bus (new_kid, bus); + gst_object_unref (bus); + + if (gst_element_set_state (new_kid, kid_state) == GST_STATE_CHANGE_FAILURE) { + GstMessage *msg; + + /* check if child posted an error message and if so re-post it on our bus + * so that the application gets to see a decent error and not our generic + * fallback error message which is completely indecipherable to the user */ + msg = gst_bus_pop_filtered (GST_ELEMENT_BUS (new_kid), GST_MESSAGE_ERROR); + if (msg) { + GST_INFO_OBJECT (src, "Forwarding kid error: %" GST_PTR_FORMAT, msg); + gst_element_post_message (GST_ELEMENT (src), msg); + } + GST_ELEMENT_ERROR (src, CORE, STATE_CHANGE, (NULL), + ("Failed to set state on new child.")); + gst_element_set_bus (new_kid, NULL); + gst_object_unref (new_kid); + return FALSE; + } + gst_element_set_bus (new_kid, NULL); + gst_bin_add (GST_BIN (src), new_kid); + + /* Now, replace the existing child */ + GST_OBJECT_LOCK (src); + old_kid = src->kid; + src->kid = new_kid; + /* Mark whether a custom kid or fakesrc has been installed */ + src->have_kid = !is_fakesrc; + GST_OBJECT_UNLOCK (src); + + /* kill old element */ + if (old_kid) { + GST_DEBUG_OBJECT (src, "Removing old kid %" GST_PTR_FORMAT, old_kid); + gst_element_set_state (old_kid, GST_STATE_NULL); + gst_bin_remove (GST_BIN (src), old_kid); + gst_object_unref (old_kid); + /* Don't lose the SOURCE flag */ + GST_OBJECT_FLAG_SET (src, GST_ELEMENT_IS_SOURCE); + } + + /* re-attach ghostpad */ + GST_DEBUG_OBJECT (src, "Creating new ghostpad"); + targetpad = gst_element_get_static_pad (src->kid, "src"); + gst_ghost_pad_set_target (GST_GHOST_PAD (src->pad), targetpad); + gst_object_unref (targetpad); + GST_DEBUG_OBJECT (src, "done changing child of switchsrc"); + + return TRUE; +} + +gboolean +gst_switch_src_set_child (GstSwitchSrc * src, GstElement * new_kid) +{ + GstState cur, next; + GstElement **p_kid; + + /* Nothing to do if clearing the child and we've already installed fakesrc */ + if (new_kid == NULL && src->kid != NULL && src->have_kid == FALSE) + return TRUE; + + /* Store the new kid to be committed later */ + GST_OBJECT_LOCK (src); + cur = GST_STATE (src); + next = GST_STATE_NEXT (src); + p_kid = &src->new_kid; + gst_object_replace ((GstObject **) p_kid, (GstObject *) new_kid); + GST_OBJECT_UNLOCK (src); + if (new_kid) + gst_object_unref (new_kid); + + /* Sometime, it would be lovely to allow src changes even when + * already running */ + /* FIXME: Block the pad and replace the kid when it completes */ + if (cur > GST_STATE_READY || next == GST_STATE_PAUSED) { + GST_DEBUG_OBJECT (src, + "Switch-src is already running. Ignoring change of child."); + gst_object_unref (new_kid); + return TRUE; + } + + return gst_switch_src_commit_new_kid (src); +} + +static GstStateChangeReturn +gst_switch_src_change_state (GstElement * element, GstStateChange transition) +{ + GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS; + GstSwitchSrc *src = GST_SWITCH_SRC (element); + + ret = GST_CALL_PARENT_WITH_DEFAULT (GST_ELEMENT_CLASS, change_state, + (element, transition), GST_STATE_CHANGE_SUCCESS); + + switch (transition) { + case GST_STATE_CHANGE_READY_TO_NULL: + if (!gst_switch_src_reset (src)) + ret = GST_STATE_CHANGE_FAILURE; + break; + default: + break; + } + + return ret; +} diff --git a/ext/gconf/gstswitchsrc.h b/ext/gconf/gstswitchsrc.h new file mode 100644 index 0000000..6c550ad --- /dev/null +++ b/ext/gconf/gstswitchsrc.h @@ -0,0 +1,57 @@ +/* GStreamer + * + * Copyright (c) 2005 Ronald S. Bultje <rbultje@ronald.bitfreak.net> + * Copyright (c) 2005 Tim-Philipp Müller <tim centricular net> + * Copyright (c) 2007 Jan Schmidt <thaytan@mad.scientist.com> + * Copyright (c) 2010 Sebastian Dröge <sebastian.droege@collabora.co.uk> + * + * 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. + */ + +#ifndef __GST_SWITCH_SRC_H__ +#define __GST_SWITCH_SRC_H__ + +#include <gst/gst.h> + +G_BEGIN_DECLS + +#define GST_TYPE_SWITCH_SRC (gst_switch_src_get_type ()) +#define GST_SWITCH_SRC(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_SWITCH_SRC, GstSwitchSrc)) +#define GST_SWITCH_SRC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_SWITCH_SRC, GstSwitchSrcClass)) +#define GST_IS_SWITCH_SRC(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_SWITCH_SRC)) +#define GST_IS_SWITCH_SRC_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_SWITCH_SRC)) + +typedef struct _GstSwitchSrc { + GstBin parent; + + GstElement *kid; + GstElement *new_kid; + GstPad *pad; + + /* If a custom child has been set... */ + gboolean have_kid; +} GstSwitchSrc; + +typedef struct _GstSwitchSrcClass { + GstBinClass parent_class; +} GstSwitchSrcClass; + +GType gst_switch_src_get_type (void); +gboolean gst_switch_src_set_child (GstSwitchSrc *ssrc, GstElement *new_kid); + +G_END_DECLS + +#endif /* __GST_SWITCH_SRC_H__ */ |