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Re-factor the gconfaudiosink into a "GstSwitchSink" base class and a child that implements the GConf key monitoring. ...

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Original commit message from CVS:
* ext/gconf/Makefile.am:
* ext/gconf/gconf.c: (gst_gconf_get_string),
(gst_gconf_get_key_for_sink_profile), (gst_gconf_set_string),
(gst_gconf_render_bin_with_default):
* ext/gconf/gconf.h:
* ext/gconf/gstgconfaudiosink.c: (gst_gconf_audio_sink_base_init),
(gst_gconf_audio_sink_reset), (gst_gconf_audio_sink_init),
(gst_gconf_audio_sink_dispose), (do_change_child),
(gst_gconf_switch_profile), (gst_gconf_audio_sink_set_property),
(cb_change_child), (gst_gconf_audio_sink_change_state):
* ext/gconf/gstgconfaudiosink.h:
* ext/gconf/gstswitchsink.c: (gst_switch_sink_base_init),
(gst_switch_sink_class_init), (gst_switch_sink_reset),
(gst_switch_sink_init), (gst_switch_sink_dispose),
(gst_switch_commit_new_kid), (gst_switch_sink_set_child),
(gst_switch_sink_set_property), (gst_switch_sink_handle_event),
(gst_switch_sink_get_property), (gst_switch_sink_change_state):
* ext/gconf/gstswitchsink.h:
* gst/autodetect/gstautoaudiosink.c:
(gst_auto_audio_sink_class_init), (gst_auto_audio_sink_dispose),
(gst_auto_audio_sink_clear_kid), (gst_auto_audio_sink_reset),
(gst_auto_audio_sink_detect):
* gst/autodetect/gstautovideosink.c:
(gst_auto_video_sink_class_init), (gst_auto_video_sink_dispose),
(gst_auto_video_sink_clear_kid), (gst_auto_video_sink_reset),
(gst_auto_video_sink_detect):
Re-factor the gconfaudiosink into a "GstSwitchSink" base class
and a child that implements the GConf key monitoring. The end goal of
this is an audio sink that can be changed on the fly, but at the
moment it still only changes on the next READY transition.
This commit is contained in:
Jan Schmidt 2007-02-13 16:01:29 +00:00
parent 5116ff603e
commit b1aa8fef18
10 changed files with 534 additions and 157 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

33
ChangeLog
View file

@ -1,3 +1,36 @@
2007-02-13 Jan Schmidt <thaytan@mad.scientist.com>
* ext/gconf/Makefile.am:
* ext/gconf/gconf.c: (gst_gconf_get_string),
(gst_gconf_get_key_for_sink_profile), (gst_gconf_set_string),
(gst_gconf_render_bin_with_default):
* ext/gconf/gconf.h:
* ext/gconf/gstgconfaudiosink.c: (gst_gconf_audio_sink_base_init),
(gst_gconf_audio_sink_reset), (gst_gconf_audio_sink_init),
(gst_gconf_audio_sink_dispose), (do_change_child),
(gst_gconf_switch_profile), (gst_gconf_audio_sink_set_property),
(cb_change_child), (gst_gconf_audio_sink_change_state):
* ext/gconf/gstgconfaudiosink.h:
* ext/gconf/gstswitchsink.c: (gst_switch_sink_base_init),
(gst_switch_sink_class_init), (gst_switch_sink_reset),
(gst_switch_sink_init), (gst_switch_sink_dispose),
(gst_switch_commit_new_kid), (gst_switch_sink_set_child),
(gst_switch_sink_set_property), (gst_switch_sink_handle_event),
(gst_switch_sink_get_property), (gst_switch_sink_change_state):
* ext/gconf/gstswitchsink.h:
* gst/autodetect/gstautoaudiosink.c:
(gst_auto_audio_sink_class_init), (gst_auto_audio_sink_dispose),
(gst_auto_audio_sink_clear_kid), (gst_auto_audio_sink_reset),
(gst_auto_audio_sink_detect):
* gst/autodetect/gstautovideosink.c:
(gst_auto_video_sink_class_init), (gst_auto_video_sink_dispose),
(gst_auto_video_sink_clear_kid), (gst_auto_video_sink_reset),
(gst_auto_video_sink_detect):
Re-factor the gconfaudiosink into a "GstSwitchSink" base class
and a child that implements the GConf key monitoring. The end goal of
this is an audio sink that can be changed on the fly, but at the
moment it still only changes on the next READY transition.
2007-02-13 Stefan Kost <ensonic@users.sf.net>
* gst/avi/gstavidemux.c: (gst_avi_demux_handle_src_query),

2
ext/gconf/Makefile.am
View file

@ -6,6 +6,7 @@ libgstgconfelements_la_SOURCES = \
gstgconfelements.c \
gstgconfvideosink.c \
gstgconfvideosrc.c \
gstswitchsink.c \
gconf.c
DIR_CFLAGS = -DGST_GCONF_DIR=\"/system/gstreamer/@GST_MAJORMINOR@\"
@ -19,4 +20,5 @@ noinst_HEADERS = \
gstgconfelements.h \
gstgconfvideosink.h \
gstgconfvideosrc.h \
gstswitchsink.h \
gconf.h

48
ext/gconf/gconf.c
View file

@ -1,4 +1,5 @@
/* GStreamer
* nf_get_default_audio_sink
* Copyright (C) <2002> Thomas Vander Stichele <thomas@apestaart.org>
* Copyright (C) <2006> Jürg Billeter <j@bitron.ch>
*
@ -26,6 +27,8 @@
#include "config.h"
#endif
#include <gst/gst.h>
#include "gconf.h"
#include "gstgconfelements.h" /* for debug category */
@ -63,8 +66,12 @@ gst_gconf_get_string (const gchar * key)
{
GError *error = NULL;
gchar *value = NULL;
gchar *full_key = g_strdup_printf ("%s/%s", GST_GCONF_DIR, key);
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);
@ -79,20 +86,20 @@ gst_gconf_get_string (const gchar * key)
}
const gchar *
gst_gconf_get_key_for_sink_profile (guint profile)
gst_gconf_get_key_for_sink_profile (GstGConfProfile profile)
{
switch (profile) {
case GCONF_PROFILE_SOUNDS:
return GST_GCONF_AUDIOSINK_KEY;
return GST_GCONF_DIR "/" GST_GCONF_AUDIOSINK_KEY;
case GCONF_PROFILE_MUSIC:
return GST_GCONF_MUSIC_AUDIOSINK_KEY;
return GST_GCONF_DIR "/" GST_GCONF_MUSIC_AUDIOSINK_KEY;
case GCONF_PROFILE_CHAT:
return GST_GCONF_CHAT_AUDIOSINK_KEY;
return GST_GCONF_DIR "/" GST_GCONF_CHAT_AUDIOSINK_KEY;
default:
break;
}
g_return_val_if_reached (GST_GCONF_AUDIOSINK_KEY);
g_return_val_if_reached (GST_GCONF_DIR "/" GST_GCONF_AUDIOSINK_KEY);
}
/**
@ -106,7 +113,12 @@ void
gst_gconf_set_string (const gchar * key, const gchar * value)
{
GError *error = NULL;
gchar *full_key = g_strdup_printf ("%s/%s", GST_GCONF_DIR, key);
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) {
@ -149,27 +161,25 @@ gst_gconf_render_bin_from_key (const gchar * key)
}
/**
* gst_gconf_get_default_audio_sink:
* @profile: the appropriate application profile.
* gst_gconf_render_bin_with_default:
* @bin: a #gchar string corresponding to pipeline to construct.
* @default: a pipeline description to use as default if the GConf key
* pipeline fails to construct.
*
* Render audio output bin from GStreamer GConf key : "default/audiosink".
* If key is invalid, the default audio sink for the platform is used
* (typically osssink or sunaudiosink).
* Render bin from GConf key @key using @default as a fallback.
*
* Returns: a #GstElement containing the audio output bin, or NULL if
* everything failed.
* Returns: a #GstElement containing the rendered bin.
*/
GstElement *
gst_gconf_get_default_audio_sink (int profile)
gst_gconf_render_bin_with_default (const gchar * bin,
const gchar * default_sink)
{
GstElement *ret;
const gchar *key;
key = gst_gconf_get_key_for_sink_profile (profile);
ret = gst_gconf_render_bin_from_key (key);
ret = gst_element_factory_make (bin, NULL);
if (!ret) {
ret = gst_element_factory_make (DEFAULT_AUDIOSINK, NULL);
ret = gst_element_factory_make (default_sink, NULL);
if (!ret)
g_warning ("No GConf default audio sink key and %s doesn't work",

9
ext/gconf/gconf.h
View file

@ -37,12 +37,13 @@ G_BEGIN_DECLS
#define GST_GCONF_VIDEOSRC_KEY "default/videosrc"
#define GST_GCONF_VIDEOSINK_KEY "default/videosink"
enum
typedef enum
{
GCONF_PROFILE_SOUNDS,
GCONF_PROFILE_MUSIC,
GCONF_PROFILE_CHAT
};
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,
@ -51,6 +52,8 @@ void gst_gconf_set_string (const gchar *key,
const gchar * gst_gconf_get_key_for_sink_profile (guint 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);

176
ext/gconf/gstgconfaudiosink.c
View file

@ -28,11 +28,13 @@
#include "gstgconfaudiosink.h"
static void gst_gconf_audio_sink_dispose (GObject * object);
static void cb_toggle_element (GConfClient * client,
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
{
@ -40,7 +42,8 @@ enum
PROP_PROFILE
};
GST_BOILERPLATE (GstGConfAudioSink, gst_gconf_audio_sink, GstBin, GST_TYPE_BIN);
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);
@ -55,14 +58,8 @@ gst_gconf_audio_sink_base_init (gpointer klass)
GST_ELEMENT_DETAILS ("GConf audio sink",
"Sink/Audio",
"Audio sink embedding the GConf-settings for audio output",
"Ronald Bultje <rbultje@ronald.bitfreak.net>");
GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS_ANY);
gst_element_class_add_pad_template (eklass,
gst_static_pad_template_get (&sink_template));
"Ronald Bultje <rbultje@ronald.bitfreak.net>\n"
"Jan Schmidt <thaytan@mad.scientist.com>");
gst_element_class_set_details (eklass, &gst_gconf_audio_sink_details);
}
@ -101,68 +98,28 @@ gst_gconf_audio_sink_class_init (GstGConfAudioSinkClass * klass)
GST_TYPE_GCONF_PROFILE, GCONF_PROFILE_SOUNDS, G_PARAM_READWRITE));
}
/*
* Hack to make negotiation work.
*/
static void
gst_gconf_audio_sink_reset (GstGConfAudioSink * sink)
{
GstPad *targetpad;
/* fakesink */
if (sink->kid) {
gst_element_set_state (sink->kid, GST_STATE_NULL);
gst_bin_remove (GST_BIN (sink), sink->kid);
}
sink->kid = gst_element_factory_make ("fakesink", "testsink");
gst_bin_add (GST_BIN (sink), sink->kid);
targetpad = gst_element_get_pad (sink->kid, "sink");
gst_ghost_pad_set_target (GST_GHOST_PAD (sink->pad), targetpad);
gst_object_unref (targetpad);
gst_switch_sink_set_child (GST_SWITCH_SINK (sink), NULL);
g_free (sink->gconf_str);
sink->gconf_str = NULL;
if (sink->connection) {
gconf_client_notify_remove (sink->client, sink->connection);
sink->connection = 0;
}
}
static const gchar *
get_gconf_key_for_profile (int 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:
g_return_val_if_reached (NULL);
}
gst_gconf_switch_profile (sink, GCONF_PROFILE_NONE);
}
static void
gst_gconf_audio_sink_init (GstGConfAudioSink * sink,
GstGConfAudioSinkClass * g_class)
{
sink->pad = gst_ghost_pad_new_no_target ("sink", GST_PAD_SINK);
gst_element_add_pad (GST_ELEMENT (sink), sink->pad);
gst_gconf_audio_sink_reset (sink);
sink->client = gconf_client_get_default ();
gconf_client_add_dir (sink->client, GST_GCONF_DIR,
gconf_client_add_dir (sink->client, GST_GCONF_DIR "/default",
GCONF_CLIENT_PRELOAD_RECURSIVE, NULL);
sink->profile = GCONF_PROFILE_SOUNDS;
sink->connection = gconf_client_notify_add (sink->client,
get_gconf_key_for_profile (sink->profile), cb_toggle_element,
sink, NULL, NULL);
gst_gconf_switch_profile (sink, GCONF_PROFILE_SOUNDS);
}
static void
@ -171,11 +128,7 @@ gst_gconf_audio_sink_dispose (GObject * object)
GstGConfAudioSink *sink = GST_GCONF_AUDIO_SINK (object);
if (sink->client) {
if (sink->connection) {
gconf_client_notify_remove (sink->client, sink->connection);
sink->connection = 0;
}
gst_gconf_switch_profile (sink, GCONF_PROFILE_NONE);
g_object_unref (G_OBJECT (sink->client));
sink->client = NULL;
}
@ -187,12 +140,11 @@ gst_gconf_audio_sink_dispose (GObject * object)
}
static gboolean
do_toggle_element (GstGConfAudioSink * sink)
do_change_child (GstGConfAudioSink * sink)
{
const gchar *key;
GstPad *targetpad;
gchar *new_gconf_str;
GstState cur, next;
GstElement *new_kid;
key = gst_gconf_get_key_for_sink_profile (sink->profile);
new_gconf_str = gst_gconf_get_string (key);
@ -204,57 +156,65 @@ do_toggle_element (GstGConfAudioSink * sink)
(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");
return TRUE;
}
/* 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 */
GST_OBJECT_LOCK (sink);
cur = GST_STATE (sink);
next = GST_STATE_PENDING (sink);
GST_OBJECT_UNLOCK (sink);
if (cur > GST_STATE_READY || next == GST_STATE_PAUSED) {
GST_DEBUG_OBJECT (sink,
"Auto-sink is already running. Ignoring GConf change");
"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;
/* kill old element */
if (sink->kid) {
GST_DEBUG_OBJECT (sink, "Removing old kid");
gst_element_set_state (sink->kid, GST_STATE_NULL);
gst_bin_remove (GST_BIN (sink), sink->kid);
sink->kid = NULL;
}
GST_DEBUG_OBJECT (sink, "Creating new kid");
if (!(sink->kid = gst_gconf_get_default_audio_sink (sink->profile))) {
GST_ELEMENT_ERROR (sink, LIBRARY, SETTINGS, (NULL),
("Failed to render audio sink from GConf"));
g_free (sink->gconf_str);
sink->gconf_str = NULL;
return FALSE;
}
gst_element_set_state (sink->kid, GST_STATE (sink));
gst_bin_add (GST_BIN (sink), sink->kid);
/* re-attach ghostpad */
GST_DEBUG_OBJECT (sink, "Creating new ghostpad");
targetpad = gst_element_get_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 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->connection) {
const gchar *key = gst_gconf_get_key_for_sink_profile (sink->profile);
GST_DEBUG_OBJECT (sink, "Unsubscribing old key %s for profile %d",
key, sink->profile);
gconf_client_notify_remove (sink->client, sink->connection);
sink->connection = 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->connection = gconf_client_notify_add (sink->client, key,
cb_change_child, sink, NULL, NULL);
}
}
static void
@ -267,13 +227,7 @@ gst_gconf_audio_sink_set_property (GObject * object, guint prop_id,
switch (prop_id) {
case PROP_PROFILE:
sink->profile = g_value_get_enum (value);
if (sink->connection) {
gconf_client_notify_remove (sink->client, sink->connection);
}
sink->connection = gconf_client_notify_add (sink->client,
get_gconf_key_for_profile (sink->profile), cb_toggle_element,
sink, NULL, NULL);
gst_gconf_switch_profile (sink, g_value_get_enum (value));
break;
default:
break;
@ -299,10 +253,10 @@ gst_gconf_audio_sink_get_property (GObject * object, guint prop_id,
}
static void
cb_toggle_element (GConfClient * client,
cb_change_child (GConfClient * client,
guint connection_id, GConfEntry * entry, gpointer data)
{
do_toggle_element (GST_GCONF_AUDIO_SINK (data));
do_change_child (GST_GCONF_AUDIO_SINK (data));
}
static GstStateChangeReturn
@ -314,8 +268,10 @@ gst_gconf_audio_sink_change_state (GstElement * element,
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
if (!do_toggle_element (sink))
if (!do_change_child (sink)) {
gst_gconf_audio_sink_reset (sink);
return GST_STATE_CHANGE_FAILURE;
}
break;
default:
break;

9
ext/gconf/gstgconfaudiosink.h
View file

@ -22,6 +22,7 @@
#include <gst/gst.h>
#include <gconf/gconf-client.h>
#include "gstswitchsink.h"
G_BEGIN_DECLS
@ -39,21 +40,19 @@ G_BEGIN_DECLS
(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_GCONF_AUDIO_SINK))
typedef struct _GstGConfAudioSink {
GstBin parent;
GstSwitchSink parent;
/* explicit pointers to stuff used */
GConfClient *client;
int profile;
GstGConfProfile profile;
guint connection;
GstElement *kid;
GstPad *pad;
/* Current gconf string */
gchar *gconf_str;
} GstGConfAudioSink;
typedef struct _GstGConfAudioSinkClass {
GstBinClass parent_class;
GstSwitchSinkClass parent_class;
} GstGConfAudioSinkClass;
GType gst_gconf_audio_sink_get_type (void);

265
ext/gconf/gstswitchsink.c Normal file
View file

@ -0,0 +1,265 @@
/* GStreamer
* (c) 2005 Ronald S. Bultje <rbultje@ronald.bitfreak.net>
* (c) 2006 Jürg Billeter <j@bitron.ch>
* (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_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_switch_sink_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
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);
GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS_ANY);
GstPadTemplate *child_pad_templ;
oklass->set_property = gst_switch_sink_set_property;
oklass->get_property = gst_switch_sink_get_property;
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 void
gst_switch_sink_reset (GstSwitchSink * sink)
{
/* fakesink */
if (sink->kid == NULL) {
gst_switch_sink_set_child (sink, NULL);
}
}
static void
gst_switch_sink_init (GstSwitchSink * sink, GstSwitchSinkClass * g_class)
{
sink->pad = gst_ghost_pad_new_no_target ("sink", GST_PAD_SINK);
gst_element_add_pad (GST_ELEMENT (sink), sink->pad);
gst_switch_sink_reset (sink);
}
static void
gst_switch_sink_dispose (GObject * object)
{
GstSwitchSink *sink = GST_SWITCH_SINK (object);
GstElement **p_kid = &sink->kid;
gst_object_replace ((GstObject **) p_kid, NULL);
GST_CALL_PARENT (G_OBJECT_CLASS, dispose, (object));
}
gboolean
gst_switch_commit_new_kid (GstSwitchSink * sink)
{
GstPad *targetpad;
GstState cur_state;
GstElement *new_kid, *old_kid;
gboolean is_fakesink = FALSE;
/* need locking around member accesses */
GST_OBJECT_LOCK (sink);
cur_state = GST_STATE (sink);
new_kid = sink->new_kid;
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");
g_object_set (new_kid, "sync", TRUE, NULL);
is_fakesink = TRUE;
} else {
GST_DEBUG_OBJECT (sink, "Setting new kid");
}
if (gst_element_set_state (new_kid, cur_state) == GST_STATE_CHANGE_FAILURE) {
GST_ELEMENT_ERROR (sink, CORE, STATE_CHANGE, (NULL),
("Failed to set state on new child."));
gst_object_unref (new_kid);
return FALSE;
}
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;
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);
}
/* re-attach ghostpad */
GST_DEBUG_OBJECT (sink, "Creating new ghostpad");
targetpad = gst_element_get_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 */
/* Unblock the target pad if necessary */
if (sink->awaiting_block) {
gst_pad_set_blocked (sink->pad, FALSE);
sink->awaiting_block = FALSE;
}
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 don't have one anyway */
if (new_kid == NULL && sink->have_kid == FALSE)
return TRUE;
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 (cur == GST_STATE_PAUSED && next == GST_STATE_READY) {
return gst_switch_commit_new_kid (sink);
}
/* 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_commit_new_kid (sink);
}
static void
gst_switch_sink_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstSwitchSink *sink;
g_return_if_fail (GST_IS_SWITCH_SINK (object));
sink = GST_SWITCH_SINK (object);
switch (prop_id) {
break;
default:
break;
}
}
#if 0
static gboolean
gst_switch_sink_handle_event (GstPad * pad, GstEvent * event)
{
}
#endif
static void
gst_switch_sink_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstSwitchSink *sink;
g_return_if_fail (GST_IS_SWITCH_SINK (object));
sink = GST_SWITCH_SINK (object);
switch (prop_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
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:
gst_switch_sink_reset (sink);
break;
default:
break;
}
return ret;
}

68
ext/gconf/gstswitchsink.h Normal file
View file

@ -0,0 +1,68 @@
/* GStreamer
* (c) 2005 Ronald S. Bultje <rbultje@ronald.bitfreak.net>
* (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;
/* Track incoming segment info for switchover */
GstSegment segment;
/* If a custom child has been set... */
gboolean have_kid;
/* If waiting for a pad block to complete on the ghost pad */
gboolean awaiting_block;
} 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__ */

40
gst/autodetect/gstautoaudiosink.c
View file

@ -1,5 +1,6 @@
/* GStreamer
* (c) 2005 Ronald S. Bultje <rbultje@ronald.bitfreak.net>
* (c) 2006 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
@ -49,6 +50,8 @@
static GstStateChangeReturn
gst_auto_audio_sink_change_state (GstElement * element,
GstStateChange transition);
static void gst_auto_audio_sink_dispose (GstAutoAudioSink * sink);
static void gst_auto_audio_sink_clear_kid (GstAutoAudioSink * sink);
GST_BOILERPLATE (GstAutoAudioSink, gst_auto_audio_sink, GstBin, GST_TYPE_BIN);
@ -56,7 +59,8 @@ static const GstElementDetails gst_auto_audio_sink_details =
GST_ELEMENT_DETAILS ("Auto audio sink",
"Sink/Audio",
"Wrapper audio sink for automatically detected audio sink",
"Ronald Bultje <rbultje@ronald.bitfreak.net>");
"Ronald Bultje <rbultje@ronald.bitfreak.net>\n"
"Jan Schmidt <thaytan@noraisin.net");
static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
@ -77,13 +81,35 @@ gst_auto_audio_sink_base_init (gpointer klass)
static void
gst_auto_audio_sink_class_init (GstAutoAudioSinkClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *eklass;
gobject_class = G_OBJECT_CLASS (klass);
eklass = GST_ELEMENT_CLASS (klass);
gobject_class->dispose =
(GObjectFinalizeFunc) GST_DEBUG_FUNCPTR (gst_auto_audio_sink_dispose);
eklass->change_state = GST_DEBUG_FUNCPTR (gst_auto_audio_sink_change_state);
}
static void
gst_auto_audio_sink_dispose (GstAutoAudioSink * sink)
{
gst_auto_audio_sink_clear_kid (sink);
G_OBJECT_CLASS (parent_class)->dispose ((GObject *) sink);
}
static void
gst_auto_audio_sink_clear_kid (GstAutoAudioSink * sink)
{
if (sink->kid) {
gst_element_set_state (sink->kid, GST_STATE_NULL);
gst_bin_remove (GST_BIN (sink), sink->kid);
sink->kid = NULL;
}
}
/*
* Hack to make initial linking work; ideally, this'd work even when
* no target has been assigned to the ghostpad yet.
@ -94,11 +120,9 @@ gst_auto_audio_sink_reset (GstAutoAudioSink * sink)
{
GstPad *targetpad;
gst_auto_audio_sink_clear_kid (sink);
/* fakesink placeholder */
if (sink->kid) {
gst_element_set_state (sink->kid, GST_STATE_NULL);
gst_bin_remove (GST_BIN (sink), sink->kid);
}
sink->kid = gst_element_factory_make ("fakesink", "tempsink");
gst_bin_add (GST_BIN (sink), sink->kid);
@ -258,11 +282,7 @@ gst_auto_audio_sink_detect (GstAutoAudioSink * sink)
GstElement *esink;
GstPad *targetpad;
if (sink->kid) {
gst_element_set_state (sink->kid, GST_STATE_NULL);
gst_bin_remove (GST_BIN (sink), sink->kid);
sink->kid = NULL;
}
gst_auto_audio_sink_clear_kid (sink);
/* find element */
GST_DEBUG_OBJECT (sink, "Creating new kid");

41
gst/autodetect/gstautovideosink.c
View file

@ -1,5 +1,6 @@
/* GStreamer
* (c) 2005 Ronald S. Bultje <rbultje@ronald.bitfreak.net>
* (c) 2006 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
@ -49,6 +50,8 @@
static GstStateChangeReturn
gst_auto_video_sink_change_state (GstElement * element,
GstStateChange transition);
static void gst_auto_video_sink_dispose (GstAutoVideoSink * sink);
static void gst_auto_video_sink_clear_kid (GstAutoVideoSink * sink);
GST_BOILERPLATE (GstAutoVideoSink, gst_auto_video_sink, GstBin, GST_TYPE_BIN);
@ -56,7 +59,8 @@ static const GstElementDetails gst_auto_video_sink_details =
GST_ELEMENT_DETAILS ("Auto video sink",
"Sink/Video",
"Wrapper video sink for automatically detected video sink",
"Ronald Bultje <rbultje@ronald.bitfreak.net>");
"Ronald Bultje <rbultje@ronald.bitfreak.net>\n"
"Jan Schmidt <thaytan@noraisin.net");
static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
@ -76,11 +80,33 @@ gst_auto_video_sink_base_init (gpointer klass)
static void
gst_auto_video_sink_class_init (GstAutoVideoSinkClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *eklass = GST_ELEMENT_CLASS (klass);
gobject_class = G_OBJECT_CLASS (klass);
gobject_class->dispose =
(GObjectFinalizeFunc) GST_DEBUG_FUNCPTR (gst_auto_video_sink_dispose);
eklass->change_state = GST_DEBUG_FUNCPTR (gst_auto_video_sink_change_state);
}
static void
gst_auto_video_sink_dispose (GstAutoVideoSink * sink)
{
gst_auto_video_sink_clear_kid (sink);
G_OBJECT_CLASS (parent_class)->dispose ((GObject *) sink);
}
static void
gst_auto_video_sink_clear_kid (GstAutoVideoSink * sink)
{
if (sink->kid) {
gst_element_set_state (sink->kid, GST_STATE_NULL);
gst_bin_remove (GST_BIN (sink), sink->kid);
sink->kid = NULL;
}
}
/*
* Hack to make initial linking work; ideally, this'd work even when
* no target has been assigned to the ghostpad yet.
@ -91,11 +117,10 @@ gst_auto_video_sink_reset (GstAutoVideoSink * sink)
{
GstPad *targetpad;
/* Remove any existing element */
gst_auto_video_sink_clear_kid (sink);
/* fakesink placeholder */
if (sink->kid) {
gst_element_set_state (sink->kid, GST_STATE_NULL);
gst_bin_remove (GST_BIN (sink), sink->kid);
}
sink->kid = gst_element_factory_make ("fakesink", "tempsink");
gst_bin_add (GST_BIN (sink), sink->kid);
@ -204,11 +229,7 @@ gst_auto_video_sink_detect (GstAutoVideoSink * sink)
GstElement *esink;
GstPad *targetpad;
if (sink->kid) {
gst_element_set_state (sink->kid, GST_STATE_NULL);
gst_bin_remove (GST_BIN (sink), sink->kid);
sink->kid = NULL;
}
gst_auto_video_sink_clear_kid (sink);
/* find element */
GST_DEBUG_OBJECT (sink, "Creating new kid");