mirror of
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3f55af9bb4
Original commit message from CVS: Ok, all // comments removed except the bloddy nested ones
609 lines
23 KiB
C
609 lines
23 KiB
C
/* GStreamer
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* Copyright (C) 2001 RidgeRun, Inc. (www.ridgerun.com)
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*
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* gstautoplugger.c: Data for the dynamic autopluggerger
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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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#include <gst/gst.h>
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GstElementDetails gst_autoplugger_details = {
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"Dynamic autoplugger",
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"Autoplugger",
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"Magic element that converts from any type to any other",
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VERSION,
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"Erik Walthinsen <omega@temple-baptist.com>",
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"(C) 2001 RidgeRun, Inc. (www.ridgerun.com)",
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};
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#define GST_TYPE_AUTOPLUGGER \
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(gst_autoplugger_get_type())
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#define GST_AUTOPLUGGER(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AUTOPLUGGER,GstAutoplugger))
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#define GST_AUTOPLUGGER_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_AUTOPLUGGER,GstAutopluggerClass))
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#define GST_IS_AUTOPLUGGER(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AUTOPLUGGER))
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#define GST_IS_AUTOPLUGGER_CLASS(obj) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_AUTOPLUGGER))
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typedef struct _GstAutoplugger GstAutoplugger;
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typedef struct _GstAutopluggerClass GstAutopluggerClass;
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struct _GstAutoplugger {
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GstBin bin;
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gint paused;
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GstElement *cache;
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gboolean cache_first_buffer;
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GstPad *cache_sinkpad, *cache_srcpad;
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GstElement *typefind;
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GstPad *typefind_sinkpad;
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GstPad *sinkpadpeer, *srcpadpeer;
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GstCaps *sinkcaps, *srccaps;
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GstCaps *sinktemplatecaps;
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GstAutoplug *autoplug;
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GstElement *autobin;
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gboolean disable_nocaps;
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};
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struct _GstAutopluggerClass {
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GstBinClass parent_class;
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};
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/* signals and args */
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enum {
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LAST_SIGNAL
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};
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enum {
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ARG_0,
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};
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static void gst_autoplugger_class_init (GstAutopluggerClass *klass);
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static void gst_autoplugger_init (GstAutoplugger *queue);
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static void gst_autoplugger_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec);
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static void gst_autoplugger_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec);
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/*static GstElementStateReturn gst_autoplugger_change_state (GstElement *element);*/
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static void gst_autoplugger_external_sink_caps_changed (GstPad *pad, GstCaps *caps, GstAutoplugger *autoplugger);
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static void gst_autoplugger_external_src_caps_changed (GstPad *pad, GstCaps *caps, GstAutoplugger *autoplugger);
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static void gst_autoplugger_external_sink_caps_nego_failed (GstPad *pad, gboolean *result, GstAutoplugger *autoplugger);
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static void gst_autoplugger_external_src_caps_nego_failed (GstPad *pad, gboolean *result, GstAutoplugger *autoplugger);
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static void gst_autoplugger_external_sink_connected (GstPad *pad, GstPad *peerpad, GstAutoplugger *autoplugger);
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static void gst_autoplugger_external_src_connected (GstPad *pad, GstPad *peerpad, GstAutoplugger *autoplugger);
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static void gst_autoplugger_cache_first_buffer (GstElement *element,GstBuffer *buf,GstAutoplugger *autoplugger);
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static void gst_autoplugger_cache_empty (GstElement *element, GstAutoplugger *autoplugger);
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static void gst_autoplugger_typefind_have_type (GstElement *element, GstCaps *caps, GstAutoplugger *autoplugger);
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static GstElementClass *parent_class = NULL;
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/*static guint gst_autoplugger_signals[LAST_SIGNAL] = { 0 };*/
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GType
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gst_autoplugger_get_type(void) {
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static GType autoplugger_type = 0;
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if (!autoplugger_type) {
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static const GTypeInfo autoplugger_info = {
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sizeof(GstAutopluggerClass),
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NULL,
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NULL,
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(GClassInitFunc)gst_autoplugger_class_init,
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NULL,
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NULL,
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sizeof(GstAutoplugger),
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0,
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(GInstanceInitFunc)gst_autoplugger_init,
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};
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autoplugger_type = g_type_register_static (GST_TYPE_BIN, "GstAutoplugger", &autoplugger_info, 0);
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}
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return autoplugger_type;
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}
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static void
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gst_autoplugger_class_init (GstAutopluggerClass *klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *gstelement_class;
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gobject_class = (GObjectClass*)klass;
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gstelement_class = (GstElementClass*)klass;
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parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
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/*
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gst_autoplugger_signals[_EMPTY] =
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g_signal_new ("_empty", G_OBJECT_TYPE(gobject_class), G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (GstAutopluggerClass, _empty), NULL, NULL,
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g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0);
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*/
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/*
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g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_BUFFER_COUNT,
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g_param_spec_int("buffer_count","buffer_count","buffer_count",
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0,G_MAXINT,0,G_PARAM_READABLE)); // CHECKME!
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g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_RESET,
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g_param_spec_boolean("reset","reset","reset",
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FALSE,G_PARAM_WRITABLE)); // CHECKME!
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*/
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gobject_class->set_property = gst_autoplugger_set_property;
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gobject_class->get_property = gst_autoplugger_get_property;
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/* gstelement_class->change_state = gst_autoplugger_change_state; */
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}
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static void
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gst_autoplugger_init (GstAutoplugger *autoplugger)
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{
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/* create the autoplugger cache, which is the fundamental unit of the autopluggerger */
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/* FIXME we need to find a way to set element's name before _init */
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/* FIXME ... so we can name the subelements uniquely */
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autoplugger->cache = gst_elementfactory_make("autoplugcache", "unnamed_autoplugcache");
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g_return_if_fail (autoplugger->cache != NULL);
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GST_DEBUG(GST_CAT_AUTOPLUG, "turning on caps nego proxying in cache\n");
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g_object_set(G_OBJECT(autoplugger->cache),"caps_proxy",TRUE,NULL);
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/* attach signals to the cache */
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g_signal_connect (G_OBJECT (autoplugger->cache), "first_buffer",
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G_CALLBACK (gst_autoplugger_cache_first_buffer), autoplugger);
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/* add the cache to self */
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gst_bin_add (GST_BIN(autoplugger), autoplugger->cache);
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/* get the cache's pads so we can attach stuff to them */
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autoplugger->cache_sinkpad = gst_element_get_pad (autoplugger->cache, "sink");
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autoplugger->cache_srcpad = gst_element_get_pad (autoplugger->cache, "src");
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/* attach handlers to the typefind pads */
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g_signal_connect (G_OBJECT (autoplugger->cache_sinkpad), "caps_changed",
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G_CALLBACK (gst_autoplugger_external_sink_caps_changed), autoplugger);
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g_signal_connect (G_OBJECT (autoplugger->cache_srcpad), "caps_changed",
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G_CALLBACK (gst_autoplugger_external_src_caps_changed), autoplugger);
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g_signal_connect (G_OBJECT (autoplugger->cache_sinkpad), "caps_nego_failed",
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G_CALLBACK (gst_autoplugger_external_sink_caps_nego_failed), autoplugger);
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g_signal_connect (G_OBJECT (autoplugger->cache_srcpad), "caps_nego_failed",
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G_CALLBACK (gst_autoplugger_external_src_caps_nego_failed), autoplugger);
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/* g_signal_connect (G_OBJECT (autoplugger->cache_sinkpad), "connected", */
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/* gst_autoplugger_external_sink_connected, autoplugger);*/
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/* g_signal_connect (G_OBJECT (autoplugger->cache_srcpad), "connected", */
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/* gst_autoplugger_external_src_connected, autoplugger); */
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/* ghost both of these pads to the outside world */
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gst_element_add_ghost_pad (GST_ELEMENT(autoplugger), autoplugger->cache_sinkpad, "sink");
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gst_element_add_ghost_pad (GST_ELEMENT(autoplugger), autoplugger->cache_srcpad, "src");
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}
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static void
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gst_autoplugger_external_sink_connected(GstPad *pad, GstPad *peerpad, GstAutoplugger *autoplugger)
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{
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GstPadTemplate *peertemplate;
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GstCaps *peercaps, *peertemplatecaps;
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GST_INFO(GST_CAT_AUTOPLUG, "have cache:sink connected");
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/* autoplugger->sinkpadpeer = peerpad; */
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if (autoplugger->sinkpadpeer) {
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peercaps = GST_PAD_CAPS(autoplugger->sinkpadpeer);
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if (peercaps)
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GST_INFO(GST_CAT_AUTOPLUG, "there are some caps on this pad's peer: %s",
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gst_caps_get_mime(peercaps));
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peertemplate = GST_PAD_PADTEMPLATE(autoplugger->sinkpadpeer);
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if (peertemplate) {
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peertemplatecaps = GST_PADTEMPLATE_CAPS(peertemplate);
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if (peertemplatecaps) {
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GST_INFO(GST_CAT_AUTOPLUG, "there are some caps on this pad's peer's padtemplate %s",
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gst_caps_get_mime(peertemplatecaps));
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}
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}
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}
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}
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static void
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gst_autoplugger_external_src_connected(GstPad *pad, GstPad *peerpad, GstAutoplugger *autoplugger)
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{
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GstPadTemplate *peertemplate;
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GstCaps *peercaps, *peertemplatecaps;
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GST_INFO(GST_CAT_AUTOPLUG, "have cache:src connected");
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/* autoplugger->srcpadpeer = peerpad; */
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if (autoplugger->srcpadpeer) {
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peercaps = GST_PAD_CAPS(autoplugger->srcpadpeer);
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if (peercaps)
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GST_INFO(GST_CAT_AUTOPLUG, "there are some caps on this pad's peer: %s",
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gst_caps_get_mime(peercaps));
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peertemplate = GST_PAD_PADTEMPLATE(autoplugger->srcpadpeer);
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if (peertemplate) {
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peertemplatecaps = GST_PADTEMPLATE_CAPS(peertemplate);
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if (peertemplatecaps) {
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GST_INFO(GST_CAT_AUTOPLUG, "there are some caps on this pad's peer's padtemplate %s",
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gst_caps_get_mime(peertemplatecaps));
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autoplugger->sinktemplatecaps = peertemplatecaps;
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/* GST_DEBUG(GST_CAT_AUTOPLUG, "turning on caps nego proxying in cache\n"); */
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/* gtk_object_set(G_OBJECT(autoplugger->cache),"caps_proxy",TRUE,NULL);*/
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}
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}
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}
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}
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static void
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gst_autoplugger_external_sink_caps_changed(GstPad *pad, GstCaps *caps, GstAutoplugger *autoplugger)
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{
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GST_INFO(GST_CAT_AUTOPLUG, "have cache:sink caps of %s\n",gst_caps_get_mime(caps));
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autoplugger->sinkcaps = caps;
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}
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static void
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gst_autoplugger_external_src_caps_changed(GstPad *pad, GstCaps *caps, GstAutoplugger *autoplugger)
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{
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GST_INFO(GST_CAT_AUTOPLUG, "have cache:src caps of %s\n",gst_caps_get_mime(caps));
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autoplugger->srccaps = caps;
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}
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static gboolean
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gst_autoplugger_autoplug(GstAutoplugger *autoplugger,GstPad *srcpad,GstCaps *srccaps,GstCaps *sinkcaps)
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{
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GstPad *sinkpad;
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sinkpad = GST_PAD(GST_PAD_PEER(srcpad));
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GST_DEBUG(GST_CAT_AUTOPLUG,"disconnecting %s:%s and %s:%s to autoplug between them\n",
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GST_DEBUG_PAD_NAME(srcpad),GST_DEBUG_PAD_NAME(sinkpad));
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GST_DEBUG(GST_CAT_AUTOPLUG,"srcpadcaps are of type %s\n",gst_caps_get_mime(srccaps));
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GST_DEBUG(GST_CAT_AUTOPLUG,"sinkpadcaps are of type %s\n",gst_caps_get_mime(sinkcaps));
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/* disconnect the pads */
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GST_DEBUG(GST_CAT_AUTOPLUG, "disconnecting the pads that will be joined by an autobin\n");
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gst_pad_disconnect(srcpad,sinkpad);
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if (!autoplugger->autoplug) {
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autoplugger->autoplug = gst_autoplugfactory_make("static");
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g_return_val_if_fail(autoplugger->autoplug != NULL, FALSE);
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}
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GST_DEBUG(GST_CAT_AUTOPLUG, "building autoplugged bin between caps\n");
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autoplugger->autobin = gst_autoplug_to_caps(autoplugger->autoplug,
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srccaps,sinkcaps,NULL);
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g_return_val_if_fail(autoplugger->autobin != NULL, FALSE);
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gst_bin_add(GST_BIN(autoplugger),autoplugger->autobin);
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gst_scheduler_show(GST_ELEMENT_SCHED(autoplugger));
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/* FIXME this is a hack */
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/* GST_DEBUG(GST_CAT_AUTOPLUG, "copying failed caps to srcpad %s:%s to ensure renego\n",GST_DEBUG_PAD_NAME(autoplugger->cache_srcpad)); */
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/* gst_pad_set_caps(srcpad,srccaps); */
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if (GST_PAD_CAPS(srcpad) == NULL) GST_DEBUG(GST_CAT_AUTOPLUG,"no caps on cache:src!\n");
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/* attach the autoplugged bin */
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GST_DEBUG(GST_CAT_AUTOPLUG, "attaching the autoplugged bin between the two pads\n");
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gst_pad_connect(srcpad,gst_element_get_pad(autoplugger->autobin,"sink"));
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gst_scheduler_show(GST_ELEMENT_SCHED(autoplugger));
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gst_pad_connect(gst_element_get_pad(autoplugger->autobin,"src_00"),sinkpad);
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gst_scheduler_show(GST_ELEMENT_SCHED(autoplugger));
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/* FIXME try to force the renego */
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/* GST_DEBUG(GST_CAT_AUTOPLUG, "trying to force everyone to nego\n"); */
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/* gst_pad_renegotiate(gst_element_get_pad(autoplugger->autobin,"sink")); */
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/* gst_pad_renegotiate(sinkpad); */
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return TRUE;
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}
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static void
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gst_autoplugger_external_sink_caps_nego_failed(GstPad *pad, gboolean *result, GstAutoplugger *autoplugger)
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{
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GstPad *srcpad_peer;
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GstPadTemplate *srcpad_peer_template;
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GstCaps *srcpad_peer_caps;
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GstPad *sinkpad_peer;
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GstCaps *sinkpad_peer_caps;
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GST_INFO(GST_CAT_AUTOPLUG, "have caps nego failure on sinkpad %s:%s!!!",GST_DEBUG_PAD_NAME(pad));
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autoplugger->paused++;
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if (autoplugger->paused == 1)
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/* try to PAUSE the whole thing */
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gst_element_set_state(GST_ELEMENT_SCHED(autoplugger)->parent,GST_STATE_PAUSED);
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srcpad_peer = GST_PAD(GST_PAD_PEER(autoplugger->cache_srcpad));
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g_return_if_fail(srcpad_peer != NULL);
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srcpad_peer_template = GST_PAD_PADTEMPLATE(srcpad_peer);
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g_return_if_fail(srcpad_peer_template != NULL);
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srcpad_peer_caps = GST_PADTEMPLATE_CAPS(srcpad_peer_template);
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g_return_if_fail(srcpad_peer_caps != NULL);
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sinkpad_peer = GST_PAD(GST_PAD_PEER(pad));
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g_return_if_fail(sinkpad_peer != NULL);
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sinkpad_peer_caps = GST_PAD_CAPS(sinkpad_peer);
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g_return_if_fail(sinkpad_peer_caps != NULL);
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if (gst_autoplugger_autoplug(autoplugger,autoplugger->cache_srcpad,sinkpad_peer_caps,srcpad_peer_caps))
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*result = TRUE;
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/* force renego */
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gst_pad_renegotiate(GST_PAD(GST_PAD_PEER(autoplugger->cache_sinkpad)));
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autoplugger->paused--;
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if (autoplugger->paused == 0)
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/* try to PLAY the whole thing */
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gst_element_set_state(GST_ELEMENT_SCHED(autoplugger)->parent,GST_STATE_PLAYING);
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GST_INFO(GST_CAT_AUTOPLUG, "done dealing with caps nego failure on sinkpad %s:%s",GST_DEBUG_PAD_NAME(pad));
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}
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static void
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gst_autoplugger_external_src_caps_nego_failed(GstPad *pad, gboolean *result, GstAutoplugger *autoplugger)
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{
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GstCaps *srcpad_caps;
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GstPad *srcpad_peer;
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GstPadTemplate *srcpad_peer_template;
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GstCaps *srcpad_peer_caps;
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GST_INFO(GST_CAT_AUTOPLUG, "have caps nego failure on srcpad %s:%s!!!",GST_DEBUG_PAD_NAME(pad));
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autoplugger->paused++;
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if (autoplugger->paused == 1)
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/* try to PAUSE the whole thing */
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gst_element_set_state(GST_ELEMENT_SCHED(autoplugger)->parent,GST_STATE_PAUSED);
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srcpad_caps = GST_PAD_CAPS(autoplugger->cache_srcpad);
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srcpad_peer = GST_PAD(GST_PAD_PEER(autoplugger->cache_srcpad));
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g_return_if_fail(srcpad_peer != NULL);
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srcpad_peer_template = GST_PAD_PADTEMPLATE(srcpad_peer);
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g_return_if_fail(srcpad_peer_template != NULL);
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srcpad_peer_caps = GST_PADTEMPLATE_CAPS(srcpad_peer_template);
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g_return_if_fail(srcpad_peer_caps != NULL);
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if (gst_autoplugger_autoplug(autoplugger,autoplugger->cache_srcpad,srcpad_caps,srcpad_peer_caps))
|
|
*result = TRUE;
|
|
|
|
autoplugger->paused--;
|
|
if (autoplugger->paused == 0)
|
|
/* try to PLAY the whole thing */
|
|
gst_element_set_state(GST_ELEMENT_SCHED(autoplugger)->parent,GST_STATE_PLAYING);
|
|
|
|
autoplugger->disable_nocaps = TRUE;
|
|
|
|
GST_INFO(GST_CAT_AUTOPLUG, "done dealing with caps nego failure on srcpad %s:%s",GST_DEBUG_PAD_NAME(pad));
|
|
}
|
|
|
|
|
|
static void
|
|
gst_autoplugger_cache_empty(GstElement *element, GstAutoplugger *autoplugger)
|
|
{
|
|
GstPad *cache_sinkpad_peer,*cache_srcpad_peer;
|
|
|
|
GST_INFO(GST_CAT_AUTOPLUG, "autoplugger cache has hit empty, we can now remove it");
|
|
|
|
autoplugger->paused++;
|
|
if (autoplugger->paused == 1)
|
|
/* try to PAUSE the whole thing */
|
|
gst_element_set_state(GST_ELEMENT_SCHED(autoplugger)->parent,GST_STATE_PAUSED);
|
|
|
|
/* disconnect the cache from its peers */
|
|
GST_DEBUG(GST_CAT_AUTOPLUG, "disconnecting autoplugcache from its peers\n");
|
|
cache_sinkpad_peer = GST_PAD (GST_PAD_PEER(autoplugger->cache_sinkpad));
|
|
cache_srcpad_peer = GST_PAD (GST_PAD_PEER(autoplugger->cache_srcpad));
|
|
gst_pad_disconnect(cache_sinkpad_peer,autoplugger->cache_sinkpad);
|
|
gst_pad_disconnect(autoplugger->cache_srcpad,cache_srcpad_peer);
|
|
|
|
/* remove the cache from self */
|
|
GST_DEBUG(GST_CAT_AUTOPLUG, "removing the cache from the autoplugger\n");
|
|
gst_bin_remove (GST_BIN(autoplugger), autoplugger->cache);
|
|
|
|
/* connect the two pads */
|
|
GST_DEBUG(GST_CAT_AUTOPLUG, "reconnecting the autoplugcache's former peers\n");
|
|
gst_pad_connect(cache_sinkpad_peer,cache_srcpad_peer);
|
|
|
|
autoplugger->paused--;
|
|
if (autoplugger->paused == 0)
|
|
/* try to PLAY the whole thing */
|
|
gst_element_set_state(GST_ELEMENT_SCHED(autoplugger)->parent,GST_STATE_PLAYING);
|
|
|
|
/* xmlSaveFile("autoplugger.gst", gst_xml_write(GST_ELEMENT_SCHED(autoplugger)->parent)); */
|
|
|
|
GST_INFO(GST_CAT_AUTOPLUG, "autoplugger_cache_empty finished");
|
|
}
|
|
|
|
static void
|
|
gst_autoplugger_typefind_have_type(GstElement *element, GstCaps *caps, GstAutoplugger *autoplugger)
|
|
{
|
|
GST_INFO(GST_CAT_AUTOPLUG, "typefind claims to have a type: %s",gst_caps_get_mime(caps));
|
|
|
|
gst_scheduler_show(GST_ELEMENT_SCHED(autoplugger));
|
|
|
|
autoplugger->paused++;
|
|
if (autoplugger->paused == 1)
|
|
/* try to PAUSE the whole thing */
|
|
gst_element_set_state(GST_ELEMENT_SCHED(autoplugger)->parent,GST_STATE_PAUSED);
|
|
|
|
/* first disconnect the typefind and shut it down */
|
|
GST_DEBUG(GST_CAT_AUTOPLUG, "disconnecting typefind from the cache\n");
|
|
gst_pad_disconnect(autoplugger->cache_srcpad,autoplugger->typefind_sinkpad);
|
|
gst_bin_remove(GST_BIN(autoplugger),autoplugger->typefind);
|
|
|
|
/* FIXME FIXME now we'd compare caps and see if we need to autoplug something in the middle, but for */
|
|
/* now we're going to just reconnect where we left off */
|
|
/* FIXME FIXME FIXME!!!: this should really be done in the caps failure!!! */
|
|
/*
|
|
if (!autoplugger->autoplug) {
|
|
autoplugger->autoplug = gst_autoplugfactory_make("static");
|
|
}
|
|
autoplugger->autobin = gst_autoplug_to_caps(autoplugger->autoplug,
|
|
caps,autoplugger->sinktemplatecaps,NULL);
|
|
g_return_if_fail(autoplugger->autobin != NULL);
|
|
gst_bin_add(GST_BIN(autoplugger),autoplugger->autobin);
|
|
|
|
// // re-attach the srcpad's original peer to the cache
|
|
// GST_DEBUG(GST_CAT_AUTOPLUG, "reconnecting the cache to the downstream peer\n");
|
|
// gst_pad_connect(autoplugger->cache_srcpad,autoplugger->srcpadpeer);
|
|
|
|
// attach the autoplugged bin
|
|
GST_DEBUG(GST_CAT_AUTOPLUG, "attaching the autoplugged bin between cache and downstream peer\n");
|
|
gst_pad_connect(autoplugger->cache_srcpad,gst_element_get_pad(autoplugger->autobin,"sink"));
|
|
gst_pad_connect(gst_element_get_pad(autoplugger->autobin,"src_00"),autoplugger->srcpadpeer);
|
|
*/
|
|
|
|
/* FIXME set the caps on the new connection
|
|
* GST_DEBUG(GST_CAT_AUTOPLUG,"forcing caps on the typefound pad\n");
|
|
* gst_pad_set_caps(autoplugger->cache_srcpad,caps);
|
|
* reattach the original outside srcpad
|
|
*/
|
|
GST_DEBUG(GST_CAT_AUTOPLUG,"re-attaching downstream peer to autoplugcache\n");
|
|
gst_pad_connect(autoplugger->cache_srcpad,autoplugger->srcpadpeer);
|
|
|
|
/* now reset the autoplugcache */
|
|
GST_DEBUG(GST_CAT_AUTOPLUG, "resetting the cache to send first buffer(s) again\n");
|
|
g_object_set(G_OBJECT(autoplugger->cache),"reset",TRUE,NULL);
|
|
|
|
/* attach the cache_empty handler */
|
|
/* FIXME this is the wrong place, it shouldn't be done until we get successful caps nego! */
|
|
g_signal_connect (G_OBJECT(autoplugger->cache),"cache_empty",
|
|
G_CALLBACK (gst_autoplugger_cache_empty), autoplugger);
|
|
|
|
autoplugger->paused--;
|
|
if (autoplugger->paused == 0)
|
|
/* try to PLAY the whole thing */
|
|
gst_element_set_state(GST_ELEMENT_SCHED(autoplugger)->parent,GST_STATE_PLAYING);
|
|
|
|
GST_INFO(GST_CAT_AUTOPLUG, "typefind_have_type finished");
|
|
gst_scheduler_show(GST_ELEMENT_SCHED(autoplugger));
|
|
}
|
|
|
|
static void
|
|
gst_autoplugger_cache_first_buffer(GstElement *element,GstBuffer *buf,GstAutoplugger *autoplugger)
|
|
{
|
|
GST_INFO(GST_CAT_AUTOPLUG, "have first buffer through cache");
|
|
autoplugger->cache_first_buffer = TRUE;
|
|
|
|
/* if there are no established caps, worry */
|
|
if (!autoplugger->sinkcaps) {
|
|
GST_INFO(GST_CAT_AUTOPLUG, "have no caps for the buffer, Danger Will Robinson!");
|
|
|
|
if (autoplugger->disable_nocaps) {
|
|
GST_DEBUG(GST_CAT_AUTOPLUG, "not dealing with lack of caps this time\n");
|
|
return;
|
|
}
|
|
|
|
gst_scheduler_show(GST_ELEMENT_SCHED(autoplugger));
|
|
|
|
autoplugger->paused++;
|
|
if (autoplugger->paused == 1)
|
|
/* try to PAUSE the whole thing */
|
|
gst_element_set_state(GST_ELEMENT_SCHED(autoplugger)->parent,GST_STATE_PAUSED);
|
|
|
|
/* detach the srcpad */
|
|
GST_DEBUG(GST_CAT_AUTOPLUG, "disconnecting cache from its downstream peer\n");
|
|
autoplugger->srcpadpeer = GST_PAD(GST_PAD_PEER(autoplugger->cache_srcpad));
|
|
gst_pad_disconnect(autoplugger->cache_srcpad,autoplugger->srcpadpeer);
|
|
|
|
/* instantiate the typefind and set up the signal handlers */
|
|
if (!autoplugger->typefind) {
|
|
GST_DEBUG(GST_CAT_AUTOPLUG, "creating typefind and setting signal handler\n");
|
|
autoplugger->typefind = gst_elementfactory_make("typefind","unnamed_typefind");
|
|
autoplugger->typefind_sinkpad = gst_element_get_pad(autoplugger->typefind,"sink");
|
|
g_signal_connect (G_OBJECT(autoplugger->typefind),"have_type",
|
|
G_CALLBACK (gst_autoplugger_typefind_have_type), autoplugger);
|
|
}
|
|
/* add it to self and attach it */
|
|
GST_DEBUG(GST_CAT_AUTOPLUG, "adding typefind to self and connecting to cache\n");
|
|
gst_bin_add(GST_BIN(autoplugger),autoplugger->typefind);
|
|
gst_pad_connect(autoplugger->cache_srcpad,autoplugger->typefind_sinkpad);
|
|
|
|
/* bring the typefind into playing state */
|
|
GST_DEBUG(GST_CAT_AUTOPLUG, "setting typefind state to PLAYING\n");
|
|
gst_element_set_state(autoplugger->cache,GST_STATE_PLAYING);
|
|
|
|
autoplugger->paused--;
|
|
if (autoplugger->paused == 0)
|
|
/* try to PLAY the whole thing */
|
|
gst_element_set_state(GST_ELEMENT_SCHED(autoplugger)->parent,GST_STATE_PLAYING);
|
|
|
|
GST_INFO(GST_CAT_AUTOPLUG,"here we go into nothingness, hoping the typefind will return us to safety");
|
|
gst_scheduler_show(GST_ELEMENT_SCHED(autoplugger));
|
|
} else {
|
|
/* // attach the cache_empty handler, since the cache simply isn't needed
|
|
* g_signal_connect (G_OBJECT(autoplugger->cache),"cache_empty",
|
|
* gst_autoplugger_cache_empty,autoplugger);
|
|
*/
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_autoplugger_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
|
|
{
|
|
GstAutoplugger *autoplugger;
|
|
|
|
autoplugger = GST_AUTOPLUGGER (object);
|
|
|
|
switch (prop_id) {
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_autoplugger_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
|
|
{
|
|
GstAutoplugger *autoplugger;
|
|
|
|
autoplugger = GST_AUTOPLUGGER (object);
|
|
|
|
switch (prop_id) {
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
plugin_init (GModule *module, GstPlugin *plugin)
|
|
{
|
|
GstElementFactory *factory;
|
|
|
|
factory = gst_elementfactory_new ("autoplugger", GST_TYPE_AUTOPLUGGER,
|
|
&gst_autoplugger_details);
|
|
g_return_val_if_fail (factory != NULL, FALSE);
|
|
|
|
gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
GstPluginDesc plugin_desc = {
|
|
GST_VERSION_MAJOR,
|
|
GST_VERSION_MINOR,
|
|
"autoplugger",
|
|
plugin_init
|
|
};
|
|
|