mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-23 18:21:04 +00:00
merging autodetect from 0.8 branch
Original commit message from CVS: merging autodetect from 0.8 branch
This commit is contained in:
Thomas Vander Stichele
parent
f9c827fb64
commit
7e0d2491d1
7 changed files with 700 additions and 0 deletions
14
gst/autodetect/Makefile.am
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14
gst/autodetect/Makefile.am
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@ -0,0 +1,14 @@
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plugin_LTLIBRARIES = libgstautodetect.la
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libgstautodetect_la_SOURCES = \
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gstautoaudiosink.c \
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gstautodetect.c \
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gstautovideosink.c
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libgstautodetect_la_CFLAGS = $(GST_CFLAGS) $(GCONF_CFLAGS)
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libgstautodetect_la_LIBADD = $(GCONF_LIBS)
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libgstautodetect_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
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noinst_HEADERS = \
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gstautoaudiosink.h \
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gstautodetect.h \
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gstautovideosink.h
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270
gst/autodetect/gstautoaudiosink.c
Normal file
270
gst/autodetect/gstautoaudiosink.c
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@ -0,0 +1,270 @@
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/* GStreamer
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* (c) 2005 Ronald S. Bultje <rbultje@ronald.bitfreak.net>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <string.h>
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#include "gstautoaudiosink.h"
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#include "gstautodetect.h"
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static void gst_auto_audio_sink_base_init (GstAutoAudioSinkClass * klass);
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static void gst_auto_audio_sink_class_init (GstAutoAudioSinkClass * klass);
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static void gst_auto_audio_sink_init (GstAutoAudioSink * sink);
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static void gst_auto_audio_sink_detect (GstAutoAudioSink * sink, gboolean fake);
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static GstElementStateReturn
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gst_auto_audio_sink_change_state (GstElement * element);
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static GstBinClass *parent_class = NULL;
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GType
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gst_auto_audio_sink_get_type (void)
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{
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static GType gst_auto_audio_sink_type = 0;
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if (!gst_auto_audio_sink_type) {
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static const GTypeInfo gst_auto_audio_sink_info = {
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sizeof (GstAutoAudioSinkClass),
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(GBaseInitFunc) gst_auto_audio_sink_base_init,
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NULL,
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(GClassInitFunc) gst_auto_audio_sink_class_init,
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NULL,
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NULL,
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sizeof (GstAutoAudioSink),
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0,
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(GInstanceInitFunc) gst_auto_audio_sink_init,
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};
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gst_auto_audio_sink_type = g_type_register_static (GST_TYPE_BIN,
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"GstAutoAudioSink", &gst_auto_audio_sink_info, 0);
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}
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return gst_auto_audio_sink_type;
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}
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static void
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gst_auto_audio_sink_base_init (GstAutoAudioSinkClass * klass)
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{
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GstElementClass *eklass = GST_ELEMENT_CLASS (klass);
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GstElementDetails gst_auto_audio_sink_details = {
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"Auto audio sink",
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"Sink/Audio",
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"Audio sink embedding the Auto-settings for audio output",
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"Ronald Bultje <rbultje@ronald.bitfreak.net>"
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};
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GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS_ANY);
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gst_element_class_add_pad_template (eklass,
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gst_static_pad_template_get (&sink_template));
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gst_element_class_set_details (eklass, &gst_auto_audio_sink_details);
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}
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static void
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gst_auto_audio_sink_class_init (GstAutoAudioSinkClass * klass)
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{
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GstElementClass *eklass = GST_ELEMENT_CLASS (klass);
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parent_class = g_type_class_ref (GST_TYPE_BIN);
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eklass->change_state = gst_auto_audio_sink_change_state;
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}
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static void
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gst_auto_audio_sink_init (GstAutoAudioSink * sink)
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{
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sink->pad = NULL;
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sink->kid = NULL;
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gst_auto_audio_sink_detect (sink, TRUE);
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sink->init = FALSE;
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}
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static gboolean
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gst_auto_audio_sink_factory_filter (GstPluginFeature * feature, gpointer data)
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{
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guint rank;
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const gchar *klass;
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/* we only care about element factories */
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if (!GST_IS_ELEMENT_FACTORY (feature))
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return FALSE;
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/* audio sinks */
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klass = gst_element_factory_get_klass (GST_ELEMENT_FACTORY (feature));
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if (strcmp (klass, "Sink/Audio") != 0)
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return FALSE;
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/* only select elements with autoplugging rank */
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rank = gst_plugin_feature_get_rank (feature);
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if (rank < GST_RANK_MARGINAL)
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return FALSE;
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return TRUE;
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}
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static gint
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gst_auto_audio_sink_compare_ranks (GstPluginFeature * f1, GstPluginFeature * f2)
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{
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gint diff;
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diff = gst_plugin_feature_get_rank (f2) - gst_plugin_feature_get_rank (f1);
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if (diff != 0)
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return diff;
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return strcmp (gst_plugin_feature_get_name (f2),
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gst_plugin_feature_get_name (f1));
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}
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static GstElement *
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gst_auto_audio_sink_find_best (GstAutoAudioSink * sink)
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{
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GList *list, *item;
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GstElement *choice = NULL;
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gboolean ss = TRUE;
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list = gst_registry_pool_feature_filter (
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(GstPluginFeatureFilter) gst_auto_audio_sink_factory_filter, FALSE, sink);
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list = g_list_sort (list, (GCompareFunc) gst_auto_audio_sink_compare_ranks);
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/* FIXME:
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* - soundservers have no priority yet.
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* - soundserversinks should only be chosen if already running, or if
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* the user explicitely wants this to run... That is not easy.
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*/
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while (1) {
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GST_LOG ("Trying to find %s", ss ? "soundservers" : "audio devices");
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for (item = list; item != NULL; item = item->next) {
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GstElementFactory *f = GST_ELEMENT_FACTORY (item->data);
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GstElement *el;
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if ((el = gst_element_factory_create (f, "actual-sink"))) {
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gboolean has_p = g_object_class_find_property (G_OBJECT_GET_CLASS (el),
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"soundserver-running") ? TRUE : FALSE;
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if (ss == has_p) {
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if (ss) {
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gboolean r;
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g_object_get (G_OBJECT (el), "soundserver-running", &r, NULL);
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if (r) {
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GST_LOG ("%s - soundserver is running",
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GST_PLUGIN_FEATURE (f)->name);
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} else {
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GST_LOG ("%s - Soundserver is not running",
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GST_PLUGIN_FEATURE (f)->name);
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goto next;
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}
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}
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GST_LOG ("Testing %s", GST_PLUGIN_FEATURE (f)->name);
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if (gst_element_set_state (el, GST_STATE_READY) == GST_STATE_SUCCESS) {
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gst_element_set_state (el, GST_STATE_NULL);
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GST_LOG ("This worked!");
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choice = el;
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goto done;
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}
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}
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next:
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gst_object_unref (GST_OBJECT (el));
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}
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}
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if (!ss)
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break;
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ss = FALSE;
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}
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done:
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g_list_free (list);
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return choice;
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}
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static void
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gst_auto_audio_sink_detect (GstAutoAudioSink * sink, gboolean fake)
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{
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GstElement *esink;
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GstPad *peer = NULL;
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/* save ghostpad */
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if (sink->pad) {
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gst_object_ref (GST_OBJECT (sink->pad));
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peer = GST_PAD_PEER (GST_PAD_REALIZE (sink->pad));
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if (peer)
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gst_pad_unlink (peer, sink->pad);
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}
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/* kill old element */
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if (sink->kid) {
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GST_DEBUG_OBJECT (sink, "Removing old kid");
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gst_bin_remove (GST_BIN (sink), sink->kid);
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sink->kid = NULL;
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}
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/* find element */
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GST_DEBUG_OBJECT (sink, "Creating new kid (%ssink)", fake ? "fake" : "audio");
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if (fake) {
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esink = gst_element_factory_make ("fakesink", "temporary-sink");
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} else if (!(esink = gst_auto_audio_sink_find_best (sink))) {
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GST_ELEMENT_ERROR (sink, LIBRARY, INIT, (NULL),
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("Failed to find a supported audio sink"));
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return;
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}
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sink->kid = esink;
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gst_bin_add (GST_BIN (sink), esink);
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/* attach ghost pad */
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if (sink->pad) {
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GST_DEBUG_OBJECT (sink, "Re-doing existing ghostpad");
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gst_pad_add_ghost_pad (gst_element_get_pad (sink->kid, "sink"), sink->pad);
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if (GST_ELEMENT (sink)->pads == NULL)
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gst_element_add_pad (GST_ELEMENT (sink), sink->pad);
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} else {
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GST_DEBUG_OBJECT (sink, "Creating new ghostpad");
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sink->pad = gst_ghost_pad_new ("sink",
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gst_element_get_pad (sink->kid, "sink"));
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gst_element_add_pad (GST_ELEMENT (sink), sink->pad);
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|
}
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|
if (peer) {
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GST_DEBUG_OBJECT (sink, "Linking...");
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|
gst_pad_link (peer, sink->pad);
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}
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|
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GST_DEBUG_OBJECT (sink, "done changing auto audio sink");
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sink->init = TRUE;
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}
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|
|
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static GstElementStateReturn
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gst_auto_audio_sink_change_state (GstElement * element)
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{
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GstAutoAudioSink *sink = GST_AUTO_AUDIO_SINK (element);
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if (GST_STATE_TRANSITION (element) == GST_STATE_NULL_TO_READY && !sink->init) {
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gst_auto_audio_sink_detect (sink, FALSE);
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|
if (!sink->init)
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return GST_STATE_FAILURE;
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|
}
|
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|
|
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return GST_ELEMENT_CLASS (parent_class)->change_state (element);
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}
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57
gst/autodetect/gstautoaudiosink.h
Normal file
57
gst/autodetect/gstautoaudiosink.h
Normal file
|
|
@ -0,0 +1,57 @@
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|
/* GStreamer
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|
* (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_AUTO_AUDIO_SINK_H__
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|
#define __GST_AUTO_AUDIO_SINK_H__
|
||||||
|
|
||||||
|
#include <gst/gst.h>
|
||||||
|
|
||||||
|
G_BEGIN_DECLS
|
||||||
|
|
||||||
|
#define GST_TYPE_AUTO_AUDIO_SINK \
|
||||||
|
(gst_auto_audio_sink_get_type ())
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|
#define GST_AUTO_AUDIO_SINK(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_AUTO_AUDIO_SINK, \
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|
GstAutoAudioSink))
|
||||||
|
#define GST_AUTO_AUDIO_SINK_CLASS(klass) \
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||||||
|
(G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_AUTO_AUDIO_SINK, \
|
||||||
|
GstAutoAudioSink))
|
||||||
|
#define GST_IS_AUTO_AUDIO_SINK(obj) \
|
||||||
|
(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_AUTO_AUDIO_SINK))
|
||||||
|
#define GST_IS_AUTO_AUDIO_SINK_CLASS(obj) \
|
||||||
|
(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_AUTO_AUDIO_SINK))
|
||||||
|
|
||||||
|
typedef struct _GstAutoAudioSink {
|
||||||
|
GstBin parent;
|
||||||
|
|
||||||
|
/* explicit pointers to stuff used */
|
||||||
|
GstPad *pad;
|
||||||
|
GstElement *kid;
|
||||||
|
gboolean init;
|
||||||
|
} GstAutoAudioSink;
|
||||||
|
|
||||||
|
typedef struct _GstAutoAudioSinkClass {
|
||||||
|
GstBinClass parent_class;
|
||||||
|
} GstAutoAudioSinkClass;
|
||||||
|
|
||||||
|
GType gst_auto_audio_sink_get_type (void);
|
||||||
|
|
||||||
|
G_END_DECLS
|
||||||
|
|
||||||
|
#endif /* __GST_AUTO_AUDIO_SINK_H__ */
|
||||||
48
gst/autodetect/gstautodetect.c
Normal file
48
gst/autodetect/gstautodetect.c
Normal file
|
|
@ -0,0 +1,48 @@
|
||||||
|
/* 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 "gstautodetect.h"
|
||||||
|
#include "gstautoaudiosink.h"
|
||||||
|
#include "gstautovideosink.h"
|
||||||
|
|
||||||
|
GST_DEBUG_CATEGORY (autodetect_debug);
|
||||||
|
|
||||||
|
static gboolean
|
||||||
|
plugin_init (GstPlugin * plugin)
|
||||||
|
{
|
||||||
|
GST_DEBUG_CATEGORY_INIT (autodetect_debug, "autodetect", 0,
|
||||||
|
"Autodetection audio/video output wrapper elements");
|
||||||
|
|
||||||
|
return gst_element_register (plugin, "autovideosink",
|
||||||
|
GST_RANK_NONE, GST_TYPE_AUTO_VIDEO_SINK) &&
|
||||||
|
gst_element_register (plugin, "autoaudiosink",
|
||||||
|
GST_RANK_NONE, GST_TYPE_AUTO_AUDIO_SINK);
|
||||||
|
}
|
||||||
|
|
||||||
|
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
|
||||||
|
GST_VERSION_MINOR,
|
||||||
|
"autodetect",
|
||||||
|
"Plugin contains auto-detection plugins for video/audio outputs",
|
||||||
|
plugin_init, VERSION, GST_LICENSE, GST_PACKAGE, GST_ORIGIN)
|
||||||
26
gst/autodetect/gstautodetect.h
Normal file
26
gst/autodetect/gstautodetect.h
Normal file
|
|
@ -0,0 +1,26 @@
|
||||||
|
/* 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_AUTO_DETECT_H__
|
||||||
|
#define __GST_AUTO_DETECT_H__
|
||||||
|
|
||||||
|
GST_DEBUG_CATEGORY_EXTERN (autodetect_debug);
|
||||||
|
#define GST_CAT_DEFAULT autodetect_debug
|
||||||
|
|
||||||
|
#endif /* __GST_AUTO_DETECT_H__ */
|
||||||
228
gst/autodetect/gstautovideosink.c
Normal file
228
gst/autodetect/gstautovideosink.c
Normal file
|
|
@ -0,0 +1,228 @@
|
||||||
|
/* 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 <string.h>
|
||||||
|
|
||||||
|
#include "gstautovideosink.h"
|
||||||
|
#include "gstautodetect.h"
|
||||||
|
|
||||||
|
static void gst_auto_video_sink_base_init (GstAutoVideoSinkClass * klass);
|
||||||
|
static void gst_auto_video_sink_class_init (GstAutoVideoSinkClass * klass);
|
||||||
|
static void gst_auto_video_sink_init (GstAutoVideoSink * sink);
|
||||||
|
static void gst_auto_video_sink_detect (GstAutoVideoSink * sink, gboolean fake);
|
||||||
|
static GstElementStateReturn
|
||||||
|
gst_auto_video_sink_change_state (GstElement * element);
|
||||||
|
|
||||||
|
static GstBinClass *parent_class = NULL;
|
||||||
|
|
||||||
|
GType
|
||||||
|
gst_auto_video_sink_get_type (void)
|
||||||
|
{
|
||||||
|
static GType gst_auto_video_sink_type = 0;
|
||||||
|
|
||||||
|
if (!gst_auto_video_sink_type) {
|
||||||
|
static const GTypeInfo gst_auto_video_sink_info = {
|
||||||
|
sizeof (GstAutoVideoSinkClass),
|
||||||
|
(GBaseInitFunc) gst_auto_video_sink_base_init,
|
||||||
|
NULL,
|
||||||
|
(GClassInitFunc) gst_auto_video_sink_class_init,
|
||||||
|
NULL,
|
||||||
|
NULL,
|
||||||
|
sizeof (GstAutoVideoSink),
|
||||||
|
0,
|
||||||
|
(GInstanceInitFunc) gst_auto_video_sink_init,
|
||||||
|
};
|
||||||
|
|
||||||
|
gst_auto_video_sink_type = g_type_register_static (GST_TYPE_BIN,
|
||||||
|
"GstAutoVideoSink", &gst_auto_video_sink_info, 0);
|
||||||
|
}
|
||||||
|
|
||||||
|
return gst_auto_video_sink_type;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
gst_auto_video_sink_base_init (GstAutoVideoSinkClass * klass)
|
||||||
|
{
|
||||||
|
GstElementClass *eklass = GST_ELEMENT_CLASS (klass);
|
||||||
|
GstElementDetails gst_auto_video_sink_details = {
|
||||||
|
"Auto video sink",
|
||||||
|
"Sink/Video",
|
||||||
|
"Video sink embedding the Auto-settings for video 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));
|
||||||
|
gst_element_class_set_details (eklass, &gst_auto_video_sink_details);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
gst_auto_video_sink_class_init (GstAutoVideoSinkClass * klass)
|
||||||
|
{
|
||||||
|
GstElementClass *eklass = GST_ELEMENT_CLASS (klass);
|
||||||
|
|
||||||
|
parent_class = g_type_class_ref (GST_TYPE_BIN);
|
||||||
|
|
||||||
|
eklass->change_state = gst_auto_video_sink_change_state;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
gst_auto_video_sink_init (GstAutoVideoSink * sink)
|
||||||
|
{
|
||||||
|
sink->pad = NULL;
|
||||||
|
sink->kid = NULL;
|
||||||
|
gst_auto_video_sink_detect (sink, TRUE);
|
||||||
|
sink->init = FALSE;
|
||||||
|
}
|
||||||
|
|
||||||
|
static gboolean
|
||||||
|
gst_auto_video_sink_factory_filter (GstPluginFeature * feature, gpointer data)
|
||||||
|
{
|
||||||
|
guint rank;
|
||||||
|
const gchar *klass;
|
||||||
|
|
||||||
|
/* we only care about element factories */
|
||||||
|
if (!GST_IS_ELEMENT_FACTORY (feature))
|
||||||
|
return FALSE;
|
||||||
|
|
||||||
|
/* video sinks */
|
||||||
|
klass = gst_element_factory_get_klass (GST_ELEMENT_FACTORY (feature));
|
||||||
|
if (strcmp (klass, "Sink/Video") != 0)
|
||||||
|
return FALSE;
|
||||||
|
|
||||||
|
/* only select elements with autoplugging rank */
|
||||||
|
rank = gst_plugin_feature_get_rank (feature);
|
||||||
|
if (rank < GST_RANK_MARGINAL)
|
||||||
|
return FALSE;
|
||||||
|
|
||||||
|
return TRUE;
|
||||||
|
}
|
||||||
|
|
||||||
|
static gint
|
||||||
|
gst_auto_video_sink_compare_ranks (GstPluginFeature * f1, GstPluginFeature * f2)
|
||||||
|
{
|
||||||
|
gint diff;
|
||||||
|
|
||||||
|
diff = gst_plugin_feature_get_rank (f2) - gst_plugin_feature_get_rank (f1);
|
||||||
|
if (diff != 0)
|
||||||
|
return diff;
|
||||||
|
return strcmp (gst_plugin_feature_get_name (f2),
|
||||||
|
gst_plugin_feature_get_name (f1));
|
||||||
|
}
|
||||||
|
|
||||||
|
static GstElement *
|
||||||
|
gst_auto_video_sink_find_best (GstAutoVideoSink * sink)
|
||||||
|
{
|
||||||
|
GList *list;
|
||||||
|
|
||||||
|
list = gst_registry_pool_feature_filter (
|
||||||
|
(GstPluginFeatureFilter) gst_auto_video_sink_factory_filter, FALSE, sink);
|
||||||
|
list = g_list_sort (list, (GCompareFunc) gst_auto_video_sink_compare_ranks);
|
||||||
|
|
||||||
|
for (; list != NULL; list = list->next) {
|
||||||
|
GstElementFactory *f = GST_ELEMENT_FACTORY (list->data);
|
||||||
|
GstElement *el;
|
||||||
|
|
||||||
|
if ((el = gst_element_factory_create (f, "actual-sink"))) {
|
||||||
|
if (gst_element_set_state (el, GST_STATE_READY) == GST_STATE_SUCCESS) {
|
||||||
|
gst_element_set_state (el, GST_STATE_NULL);
|
||||||
|
return el;
|
||||||
|
}
|
||||||
|
|
||||||
|
gst_object_unref (GST_OBJECT (el));
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return NULL;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
gst_auto_video_sink_detect (GstAutoVideoSink * sink, gboolean fake)
|
||||||
|
{
|
||||||
|
GstElement *esink;
|
||||||
|
GstPad *peer = NULL;
|
||||||
|
|
||||||
|
/* save ghostpad */
|
||||||
|
if (sink->pad) {
|
||||||
|
gst_object_ref (GST_OBJECT (sink->pad));
|
||||||
|
peer = GST_PAD_PEER (GST_PAD_REALIZE (sink->pad));
|
||||||
|
if (peer)
|
||||||
|
gst_pad_unlink (peer, sink->pad);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* kill old element */
|
||||||
|
if (sink->kid) {
|
||||||
|
GST_DEBUG_OBJECT (sink, "Removing old kid");
|
||||||
|
gst_bin_remove (GST_BIN (sink), sink->kid);
|
||||||
|
sink->kid = NULL;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* find element */
|
||||||
|
GST_DEBUG_OBJECT (sink, "Creating new kid (%ssink)", fake ? "fake" : "video");
|
||||||
|
if (fake) {
|
||||||
|
esink = gst_element_factory_make ("fakesink", "temporary-sink");
|
||||||
|
g_return_if_fail (esink);
|
||||||
|
} else if (!(esink = gst_auto_video_sink_find_best (sink))) {
|
||||||
|
GST_ELEMENT_ERROR (sink, LIBRARY, INIT, (NULL),
|
||||||
|
("Failed to find a supported video sink"));
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
sink->kid = esink;
|
||||||
|
gst_bin_add (GST_BIN (sink), esink);
|
||||||
|
|
||||||
|
/* attach ghost pad */
|
||||||
|
if (sink->pad) {
|
||||||
|
GST_DEBUG_OBJECT (sink, "Re-doing existing ghostpad");
|
||||||
|
gst_pad_add_ghost_pad (gst_element_get_pad (sink->kid, "sink"), sink->pad);
|
||||||
|
} else {
|
||||||
|
GST_DEBUG_OBJECT (sink, "Creating new ghostpad");
|
||||||
|
sink->pad = gst_ghost_pad_new ("sink",
|
||||||
|
gst_element_get_pad (sink->kid, "sink"));
|
||||||
|
gst_element_add_pad (GST_ELEMENT (sink), sink->pad);
|
||||||
|
}
|
||||||
|
if (peer) {
|
||||||
|
GST_DEBUG_OBJECT (sink, "Linking...");
|
||||||
|
gst_pad_link (peer, sink->pad);
|
||||||
|
}
|
||||||
|
|
||||||
|
GST_DEBUG_OBJECT (sink, "done changing auto video sink");
|
||||||
|
sink->init = TRUE;
|
||||||
|
}
|
||||||
|
|
||||||
|
static GstElementStateReturn
|
||||||
|
gst_auto_video_sink_change_state (GstElement * element)
|
||||||
|
{
|
||||||
|
GstAutoVideoSink *sink = GST_AUTO_VIDEO_SINK (element);
|
||||||
|
|
||||||
|
if (GST_STATE_TRANSITION (element) == GST_STATE_NULL_TO_READY && !sink->init) {
|
||||||
|
gst_auto_video_sink_detect (sink, FALSE);
|
||||||
|
if (!sink->init)
|
||||||
|
return GST_STATE_FAILURE;
|
||||||
|
}
|
||||||
|
|
||||||
|
return GST_ELEMENT_CLASS (parent_class)->change_state (element);
|
||||||
|
}
|
||||||
57
gst/autodetect/gstautovideosink.h
Normal file
57
gst/autodetect/gstautovideosink.h
Normal file
|
|
@ -0,0 +1,57 @@
|
||||||
|
/* 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_AUTO_VIDEO_SINK_H__
|
||||||
|
#define __GST_AUTO_VIDEO_SINK_H__
|
||||||
|
|
||||||
|
#include <gst/gst.h>
|
||||||
|
|
||||||
|
G_BEGIN_DECLS
|
||||||
|
|
||||||
|
#define GST_TYPE_AUTO_VIDEO_SINK \
|
||||||
|
(gst_auto_video_sink_get_type ())
|
||||||
|
#define GST_AUTO_VIDEO_SINK(obj) \
|
||||||
|
(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_AUTO_VIDEO_SINK, \
|
||||||
|
GstAutoVideoSink))
|
||||||
|
#define GST_AUTO_VIDEO_SINK_CLASS(klass) \
|
||||||
|
(G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_AUTO_VIDEO_SINK, \
|
||||||
|
GstAutoVideoSink))
|
||||||
|
#define GST_IS_AUTO_VIDEO_SINK(obj) \
|
||||||
|
(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_AUTO_VIDEO_SINK))
|
||||||
|
#define GST_IS_AUTO_VIDEO_SINK_CLASS(obj) \
|
||||||
|
(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_AUTO_VIDEO_SINK))
|
||||||
|
|
||||||
|
typedef struct _GstAutoVideoSink {
|
||||||
|
GstBin parent;
|
||||||
|
|
||||||
|
/* explicit pointers to stuff used */
|
||||||
|
GstPad *pad;
|
||||||
|
GstElement *kid;
|
||||||
|
gboolean init;
|
||||||
|
} GstAutoVideoSink;
|
||||||
|
|
||||||
|
typedef struct _GstAutoVideoSinkClass {
|
||||||
|
GstBinClass parent_class;
|
||||||
|
} GstAutoVideoSinkClass;
|
||||||
|
|
||||||
|
GType gst_auto_video_sink_get_type (void);
|
||||||
|
|
||||||
|
G_END_DECLS
|
||||||
|
|
||||||
|
#endif /* __GST_AUTO_VIDEO_SINK_H__ */
|
||||||
Loading…
Reference in a new issue