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164 lines
4 KiB
C
164 lines
4 KiB
C
/* GStreamer
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* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
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* 2000 Wim Taymans <wtay@chello.be>
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*
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* gstfdsink.c:
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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 <gstfdsink.h>
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#include <unistd.h>
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GstElementDetails gst_fdsink_details = {
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"Filedescriptor Sink",
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"Sink",
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"Write data to a file descriptor",
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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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/* FdSink 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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ARG_FD
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};
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static void gst_fdsink_class_init (GstFdSinkClass *klass);
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static void gst_fdsink_init (GstFdSink *fdsink);
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static void gst_fdsink_set_arg (GtkObject *object, GtkArg *arg, guint id);
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static void gst_fdsink_get_arg (GtkObject *object, GtkArg *arg, guint id);
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static void gst_fdsink_chain (GstPad *pad,GstBuffer *buf);
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static GstElementClass *parent_class = NULL;
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//static guint gst_fdsink_signals[LAST_SIGNAL] = { 0 };
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GtkType
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gst_fdsink_get_type (void)
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{
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static GtkType fdsink_type = 0;
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if (!fdsink_type) {
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static const GtkTypeInfo fdsink_info = {
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"GstFdSink",
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sizeof(GstFdSink),
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sizeof(GstFdSinkClass),
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(GtkClassInitFunc)gst_fdsink_class_init,
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(GtkObjectInitFunc)gst_fdsink_init,
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(GtkArgSetFunc)gst_fdsink_set_arg,
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(GtkArgGetFunc)gst_fdsink_get_arg,
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(GtkClassInitFunc)NULL,
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};
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fdsink_type = gtk_type_unique (GST_TYPE_ELEMENT, &fdsink_info);
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}
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return fdsink_type;
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}
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static void
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gst_fdsink_class_init (GstFdSinkClass *klass)
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{
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GtkObjectClass *gtkobject_class;
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gtkobject_class = (GtkObjectClass*)klass;
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parent_class = gtk_type_class (GST_TYPE_ELEMENT);
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gtk_object_add_arg_type ("GstFdSink::fd", GTK_TYPE_INT,
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GTK_ARG_READWRITE, ARG_FD);
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gtkobject_class->set_arg = gst_fdsink_set_arg;
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gtkobject_class->get_arg = gst_fdsink_get_arg;
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}
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static void
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gst_fdsink_init (GstFdSink *fdsink)
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{
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fdsink->sinkpad = gst_pad_new ("sink", GST_PAD_SINK);
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gst_element_add_pad (GST_ELEMENT (fdsink), fdsink->sinkpad);
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gst_pad_set_chain_function (fdsink->sinkpad, gst_fdsink_chain);
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fdsink->fd = 1;
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}
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static void
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gst_fdsink_chain (GstPad *pad, GstBuffer *buf)
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{
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GstFdSink *fdsink;
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g_return_if_fail (pad != NULL);
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g_return_if_fail (GST_IS_PAD (pad));
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g_return_if_fail (buf != NULL);
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fdsink = GST_FDSINK (pad->parent);
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g_return_if_fail (fdsink->fd >= 0);
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if (GST_BUFFER_DATA (buf)) {
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DEBUG("writing %d bytes to file descriptor %d\n",GST_BUFFER_SIZE (buf), fdsink->fd);
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write (fdsink->fd, GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf));
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}
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gst_buffer_unref (buf);
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}
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static void
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gst_fdsink_set_arg (GtkObject *object, GtkArg *arg, guint id)
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{
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GstFdSink *fdsink;
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/* it's not null if we got it, but it might not be ours */
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g_return_if_fail (GST_IS_FDSINK (object));
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fdsink = GST_FDSINK (object);
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switch(id) {
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case ARG_FD:
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fdsink->fd = GTK_VALUE_INT (*arg);
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break;
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default:
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break;
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}
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}
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static void
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gst_fdsink_get_arg (GtkObject *object, GtkArg *arg, guint id)
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{
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GstFdSink *fdsink;
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/* it's not null if we got it, but it might not be ours */
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g_return_if_fail (GST_IS_FDSINK (object));
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fdsink = GST_FDSINK (object);
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switch(id) {
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case ARG_FD:
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GTK_VALUE_INT (*arg) = fdsink->fd;
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break;
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default:
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break;
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}
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}
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