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163 lines
4 KiB
C
163 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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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include "gstfdsink.h"
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#include <unistd.h>
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GST_DEBUG_CATEGORY_STATIC (gst_fdsink_debug);
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#define GST_CAT_DEFAULT gst_fdsink_debug
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GstElementDetails gst_fdsink_details =
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GST_ELEMENT_DETAILS ("Filedescriptor Sink",
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"Sink/File",
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"Write data to a file descriptor",
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"Erik Walthinsen <omega@cse.ogi.edu>");
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/* FdSink signals and args */
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enum
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{
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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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{
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ARG_0,
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ARG_FD
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};
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#define _do_init(bla) \
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GST_DEBUG_CATEGORY_INIT (gst_fdsink_debug, "fdsink", 0, "fdsink element");
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GST_BOILERPLATE_FULL (GstFdSink, gst_fdsink, GstElement, GST_TYPE_ELEMENT,
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_do_init);
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static void gst_fdsink_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_fdsink_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static void gst_fdsink_chain (GstPad * pad, GstData * _data);
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static void
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gst_fdsink_base_init (gpointer g_class)
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{
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GstElementClass *gstelement_class = GST_ELEMENT_CLASS (g_class);
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gst_element_class_set_details (gstelement_class, &gst_fdsink_details);
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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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GObjectClass *gobject_class;
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gobject_class = G_OBJECT_CLASS (klass);
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_FD,
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g_param_spec_int ("fd", "fd", "An open file descriptor to write to",
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0, G_MAXINT, 1, G_PARAM_READWRITE));
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gobject_class->set_property = gst_fdsink_set_property;
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gobject_class->get_property = gst_fdsink_get_property;
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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, GstData * _data)
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{
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GstBuffer *buf = GST_BUFFER (_data);
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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 (gst_pad_get_parent (pad));
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g_return_if_fail (fdsink->fd >= 0);
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if (GST_BUFFER_DATA (buf)) {
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GST_DEBUG ("writing %d bytes to file descriptor %d", GST_BUFFER_SIZE (buf),
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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_property (GObject * object, guint prop_id, const GValue * value,
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GParamSpec * pspec)
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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 (prop_id) {
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case ARG_FD:
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fdsink->fd = g_value_get_int (value);
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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_property (GObject * object, guint prop_id, GValue * value,
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GParamSpec * pspec)
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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 (prop_id) {
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case ARG_FD:
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g_value_set_int (value, 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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