mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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202ba2ae4a
Original commit message from CVS: State change fixes in the threading element. Added bufferpools.
144 lines
3.7 KiB
C
144 lines
3.7 KiB
C
/* Gnome-Streamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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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/gstpipeline.h>
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GstElementDetails gst_pipeline_details = {
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"Pipeline object",
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"Bin",
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"Complete pipeline object",
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VERSION,
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"Erik Walthinsen <omega@cse.ogi.edu>",
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"(C) 1999",
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};
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/* Pipeline signals and args */
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enum {
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/* FILL ME */
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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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/* FILL ME */
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};
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static void gst_pipeline_class_init(GstPipelineClass *klass);
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static void gst_pipeline_init(GstPipeline *pipeline);
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static GstElementStateReturn gst_pipeline_change_state(GstElement *element);
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static void gst_pipeline_prepare(GstPipeline *pipeline);
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static GstBin *parent_class = NULL;
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//static guint gst_pipeline_signals[LAST_SIGNAL] = { 0 };
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GtkType
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gst_pipeline_get_type(void) {
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static GtkType pipeline_type = 0;
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if (!pipeline_type) {
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static const GtkTypeInfo pipeline_info = {
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"GstPipeline",
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sizeof(GstPipeline),
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sizeof(GstPipelineClass),
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(GtkClassInitFunc)gst_pipeline_class_init,
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(GtkObjectInitFunc)gst_pipeline_init,
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(GtkArgSetFunc)NULL,
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(GtkArgGetFunc)NULL,
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(GtkClassInitFunc)NULL,
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};
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pipeline_type = gtk_type_unique(gst_bin_get_type(),&pipeline_info);
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}
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return pipeline_type;
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}
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static void
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gst_pipeline_class_init(GstPipelineClass *klass) {
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GstElementClass *gstelement_class;
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gstelement_class = (GstElementClass*)klass;
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parent_class = gtk_type_class(gst_bin_get_type());
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gstelement_class->change_state = gst_pipeline_change_state;
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}
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static void gst_pipeline_init(GstPipeline *pipeline) {
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}
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/**
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* gst_pipeline_new:
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* @name: name of new pipeline
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*
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* Create a new pipeline with the given name.
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*
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* Returns: newly created GstPipeline
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*/
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GstPipeline *gst_pipeline_new(guchar *name) {
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GstPipeline *pipeline;
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pipeline = gtk_type_new(gst_pipeline_get_type());
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gst_element_set_name(GST_ELEMENT(pipeline),name);
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return pipeline;
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}
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static void gst_pipeline_prepare(GstPipeline *pipeline) {
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g_print("GstPipeline: preparing pipeline \"%s\" for playing\n", gst_element_get_name(GST_ELEMENT(pipeline)));
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}
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static GstElementStateReturn gst_pipeline_change_state(GstElement *element) {
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GstPipeline *pipeline;
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g_return_val_if_fail(GST_IS_PIPELINE(element), FALSE);
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pipeline = GST_PIPELINE(element);
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switch (GST_STATE_PENDING(pipeline)) {
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case GST_STATE_READY:
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// we need to set up internal state
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g_print("preparing pipeline \"%s\" for iterations:\n",
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gst_element_get_name(GST_ELEMENT(element)));
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gst_pipeline_prepare(pipeline);
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break;
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default:
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break;
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}
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if (GST_ELEMENT_CLASS(parent_class)->change_state)
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return GST_ELEMENT_CLASS(parent_class)->change_state(element);
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return GST_STATE_SUCCESS;
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}
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/**
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* gst_pipeline_iterate:
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* @pipeline: GstPipeline to iterate
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*
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* Cause the pipeline's contents to be run through one full 'iteration'.
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*/
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void gst_pipeline_iterate(GstPipeline *pipeline) {
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g_return_if_fail(pipeline != NULL);
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g_return_if_fail(GST_IS_PIPELINE(pipeline));
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}
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