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Original commit message from CVS: * configure.ac: * gst/librfb/Makefile.am: * gst/librfb/gstrfbsrc.c: Fix basic navigation events
548 lines
17 KiB
C
548 lines
17 KiB
C
/* GStreamer
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* Copyright (C) <2007> Thijs Vermeir <thijsvermeir@gmail.com>
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* Copyright (C) <2006> Andre Moreira Magalhaes <andre.magalhaes@indt.org.br>
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* Copyright (C) <2004> David A. Schleef <ds@schleef.org>
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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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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "gstrfbsrc.h"
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#include <gst/video/video.h>
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#include <string.h>
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#include <stdlib.h>
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#ifdef HAVE_X11
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#include <X11/Xlib.h>
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#endif
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enum
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{
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ARG_0,
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ARG_HOST,
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ARG_PORT,
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ARG_VERSION,
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ARG_PASSWORD,
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ARG_OFFSET_X,
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ARG_OFFSET_Y,
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ARG_WIDTH,
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ARG_HEIGHT,
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ARG_INCREMENTAL,
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ARG_USE_COPYRECT,
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ARG_SHARED,
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ARG_VIEWONLY
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};
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GST_DEBUG_CATEGORY_STATIC (rfbsrc_debug);
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GST_DEBUG_CATEGORY (rfbdecoder_debug);
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#define GST_CAT_DEFAULT rfbsrc_debug
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static const GstElementDetails gst_rfb_src_details =
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GST_ELEMENT_DETAILS ("Rfb source",
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"Source/Video",
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"Creates a rfb video stream",
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"David A. Schleef <ds@schleef.org>, "
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"Andre Moreira Magalhaes <andre.magalhaes@indt.org.br>, "
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"Thijs Vermeir <thijsvermeir@gmail.com>");
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static GstStaticPadTemplate gst_rfb_src_template =
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GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("video/x-raw-rgb, "
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"bpp = (int) [1, 255], "
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"depth = (int) [1, 255], "
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"endianness = (int) [1234, 4321], "
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"red_mask = (int) [min, max], "
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"green_mask = (int) [min, max], "
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"blue_mask = (int) [min, max], "
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"width = (int) [ 16, 4096 ], "
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"height = (int) [ 16, 4096 ], " "framerate = (fraction) 0/1")
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);
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static void gst_rfb_src_base_init (gpointer g_class);
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static void gst_rfb_src_class_init (GstRfbSrcClass * klass);
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static void gst_rfb_src_dispose (GObject * object);
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static void gst_rfb_src_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_rfb_src_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static gboolean gst_rfb_src_start (GstBaseSrc * bsrc);
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static gboolean gst_rfb_src_stop (GstBaseSrc * bsrc);
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static gboolean gst_rfb_src_event (GstBaseSrc * bsrc, GstEvent * event);
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static GstFlowReturn gst_rfb_src_create (GstPushSrc * psrc,
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GstBuffer ** outbuf);
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GST_BOILERPLATE (GstRfbSrc, gst_rfb_src, GstPushSrc, GST_TYPE_PUSH_SRC);
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static void
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gst_rfb_src_base_init (gpointer g_class)
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{
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GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&gst_rfb_src_template));
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gst_element_class_set_details (element_class, &gst_rfb_src_details);
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}
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static void
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gst_rfb_src_class_init (GstRfbSrcClass * klass)
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{
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GObjectClass *gobject_class;
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GstBaseSrcClass *gstbasesrc_class;
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GstPushSrcClass *gstpushsrc_class;
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GST_DEBUG_CATEGORY_INIT (rfbsrc_debug, "rfbsrc", 0, "rfb src element");
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GST_DEBUG_CATEGORY_INIT (rfbdecoder_debug, "rfbdecoder", 0, "rfb decoder");
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gobject_class = (GObjectClass *) klass;
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gstbasesrc_class = (GstBaseSrcClass *) klass;
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gstpushsrc_class = (GstPushSrcClass *) klass;
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gobject_class->dispose = gst_rfb_src_dispose;
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gobject_class->set_property = gst_rfb_src_set_property;
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gobject_class->get_property = gst_rfb_src_get_property;
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g_object_class_install_property (gobject_class, ARG_HOST,
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g_param_spec_string ("host", "Host to connect to", "Host to connect to",
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"127.0.0.1", G_PARAM_READWRITE));
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g_object_class_install_property (gobject_class, ARG_PORT,
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g_param_spec_int ("port", "Port", "Port",
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1, 65535, 5900, G_PARAM_READWRITE));
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g_object_class_install_property (gobject_class, ARG_VERSION,
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g_param_spec_string ("version", "RFB protocol version",
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"RFB protocol version", "3.3", G_PARAM_READWRITE));
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g_object_class_install_property (gobject_class, ARG_PASSWORD,
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g_param_spec_string ("password", "Password for authentication",
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"Password for authentication", "", G_PARAM_WRITABLE));
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g_object_class_install_property (gobject_class, ARG_OFFSET_X,
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g_param_spec_int ("offset-x", "x offset for screen scrapping",
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"x offset for screen scrapping", 0, 65535, 0, G_PARAM_READWRITE));
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g_object_class_install_property (gobject_class, ARG_OFFSET_Y,
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g_param_spec_int ("offset-y", "y offset for screen scrapping",
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"y offset for screen scrapping", 0, 65535, 0, G_PARAM_READWRITE));
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g_object_class_install_property (gobject_class, ARG_WIDTH,
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g_param_spec_int ("width", "width of screen", "width of screen", 0, 65535,
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0, G_PARAM_READWRITE));
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g_object_class_install_property (gobject_class, ARG_HEIGHT,
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g_param_spec_int ("height", "height of screen", "height of screen", 0,
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65535, 0, G_PARAM_READWRITE));
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g_object_class_install_property (gobject_class, ARG_INCREMENTAL,
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g_param_spec_boolean ("incremental", "Incremental updates",
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"Incremental updates", TRUE, G_PARAM_READWRITE));
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g_object_class_install_property (gobject_class, ARG_USE_COPYRECT,
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g_param_spec_boolean ("use-copyrect", "Use copyrect encoding",
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"Use copyrect encoding", FALSE, G_PARAM_READWRITE));
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g_object_class_install_property (gobject_class, ARG_SHARED,
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g_param_spec_boolean ("shared", "Share desktop with other clients",
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"Share desktop with other clients", TRUE, G_PARAM_READWRITE));
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g_object_class_install_property (gobject_class, ARG_VIEWONLY,
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g_param_spec_boolean ("view-only", "Only view the desktop",
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"only view the desktop", FALSE, G_PARAM_READWRITE));
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gstbasesrc_class->start = GST_DEBUG_FUNCPTR (gst_rfb_src_start);
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gstbasesrc_class->stop = GST_DEBUG_FUNCPTR (gst_rfb_src_stop);
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gstbasesrc_class->event = GST_DEBUG_FUNCPTR (gst_rfb_src_event);
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gstpushsrc_class->create = GST_DEBUG_FUNCPTR (gst_rfb_src_create);
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}
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static void
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gst_rfb_src_init (GstRfbSrc * src, GstRfbSrcClass * klass)
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{
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GstBaseSrc *bsrc = GST_BASE_SRC (src);
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gst_pad_use_fixed_caps (GST_BASE_SRC_PAD (bsrc));
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gst_base_src_set_live (bsrc, TRUE);
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gst_base_src_set_format (bsrc, GST_FORMAT_TIME);
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src->host = g_strdup ("127.0.0.1");
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src->port = 5900;
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src->version_major = 3;
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src->version_minor = 3;
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src->incremental_update = TRUE;
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src->view_only = FALSE;
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src->decoder = rfb_decoder_new ();
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}
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static void
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gst_rfb_src_dispose (GObject * object)
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{
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GstRfbSrc *src = GST_RFB_SRC (object);
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g_free (src->host);
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if (src->decoder) {
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rfb_decoder_free (src->decoder);
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g_free (src->decoder);
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src->decoder = NULL;
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}
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G_OBJECT_CLASS (parent_class)->dispose (object);
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}
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static void
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gst_rfb_property_set_version (GstRfbSrc * src, gchar * value)
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{
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gchar *major;
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gchar *minor;
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g_return_if_fail (src != NULL);
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g_return_if_fail (value != NULL);
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major = g_strdup (value);
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minor = g_strrstr (value, ".");
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g_return_if_fail (minor != NULL);
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*minor++ = 0;
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g_return_if_fail (g_ascii_isdigit (*major) == TRUE);
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g_return_if_fail (g_ascii_isdigit (*minor) == TRUE);
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src->version_major = g_ascii_digit_value (*major);
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src->version_minor = g_ascii_digit_value (*minor);
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GST_DEBUG ("Version major : %d", src->version_major);
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GST_DEBUG ("Version minor : %d", src->version_minor);
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g_free (major);
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g_free (value);
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}
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static gchar *
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gst_rfb_property_get_version (GstRfbSrc * src)
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{
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return g_strdup_printf ("%d.%d", src->version_major, src->version_minor);
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}
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static void
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gst_rfb_src_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstRfbSrc *src = GST_RFB_SRC (object);
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switch (prop_id) {
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case ARG_HOST:
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src->host = g_strdup (g_value_get_string (value));
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break;
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case ARG_PORT:
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src->port = g_value_get_int (value);
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break;
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case ARG_VERSION:
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gst_rfb_property_set_version (src, g_strdup (g_value_get_string (value)));
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break;
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case ARG_PASSWORD:
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g_free (src->decoder->password);
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src->decoder->password = g_strdup (g_value_get_string (value));
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break;
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case ARG_OFFSET_X:
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src->decoder->offset_x = g_value_get_int (value);
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break;
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case ARG_OFFSET_Y:
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src->decoder->offset_y = g_value_get_int (value);
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break;
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case ARG_WIDTH:
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src->decoder->rect_width = g_value_get_int (value);
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break;
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case ARG_HEIGHT:
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src->decoder->rect_height = g_value_get_int (value);
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break;
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case ARG_INCREMENTAL:
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src->incremental_update = g_value_get_boolean (value);
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break;
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case ARG_USE_COPYRECT:
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src->decoder->use_copyrect = g_value_get_boolean (value);
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break;
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case ARG_SHARED:
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src->decoder->shared_flag = g_value_get_boolean (value);
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break;
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case ARG_VIEWONLY:
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src->view_only = g_value_get_boolean (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_rfb_src_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec)
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{
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GstRfbSrc *src = GST_RFB_SRC (object);
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gchar *version;
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switch (prop_id) {
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case ARG_HOST:
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g_value_set_string (value, src->host);
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break;
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case ARG_PORT:
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g_value_set_int (value, src->port);
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break;
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case ARG_VERSION:
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version = gst_rfb_property_get_version (src);
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g_value_set_string (value, version);
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g_free (version);
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break;
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case ARG_OFFSET_X:
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g_value_set_int (value, src->decoder->offset_x);
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break;
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case ARG_OFFSET_Y:
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g_value_set_int (value, src->decoder->offset_y);
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break;
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case ARG_WIDTH:
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g_value_set_int (value, src->decoder->rect_width);
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break;
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case ARG_HEIGHT:
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g_value_set_int (value, src->decoder->rect_height);
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break;
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case ARG_INCREMENTAL:
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g_value_set_boolean (value, src->incremental_update);
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break;
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case ARG_USE_COPYRECT:
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g_value_set_boolean (value, src->decoder->use_copyrect);
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break;
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case ARG_SHARED:
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g_value_set_boolean (value, src->decoder->shared_flag);
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break;
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case ARG_VIEWONLY:
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g_value_set_boolean (value, src->view_only);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static gboolean
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gst_rfb_src_start (GstBaseSrc * bsrc)
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{
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GstRfbSrc *src = GST_RFB_SRC (bsrc);
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RfbDecoder *decoder;
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GstCaps *caps;
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guint32 red_mask, green_mask, blue_mask;
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decoder = src->decoder;
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GST_DEBUG_OBJECT (src, "connecting to host %s on port %d",
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src->host, src->port);
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if (!rfb_decoder_connect_tcp (decoder, src->host, src->port)) {
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GST_ELEMENT_ERROR (src, RESOURCE, READ, (NULL),
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("Could not connect to host %s on port %d", src->host, src->port));
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rfb_decoder_free (decoder);
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return FALSE;
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}
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while (!decoder->inited) {
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rfb_decoder_iterate (decoder);
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}
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decoder->rect_width =
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(decoder->rect_width ? decoder->rect_width : decoder->width);
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decoder->rect_height =
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(decoder->rect_height ? decoder->rect_height : decoder->height);
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g_object_set (bsrc, "blocksize",
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src->decoder->width * src->decoder->height * (decoder->bpp / 8), NULL);
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decoder->frame = g_malloc (bsrc->blocksize);
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if (decoder->use_copyrect) {
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decoder->prev_frame = g_malloc (bsrc->blocksize);
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}
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decoder->decoder_private = src;
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/* calculate some many used values */
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decoder->bytespp = decoder->bpp / 8;
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decoder->line_size = decoder->rect_width * decoder->bytespp;
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GST_DEBUG_OBJECT (src, "setting caps width to %d and height to %d",
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decoder->rect_width, decoder->rect_height);
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caps =
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gst_caps_copy (gst_pad_get_pad_template_caps (GST_BASE_SRC_PAD (bsrc)));
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red_mask = decoder->red_max << decoder->red_shift;
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green_mask = decoder->green_max << decoder->green_shift;
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blue_mask = decoder->blue_max << decoder->blue_shift;
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gst_caps_set_simple (caps, "width", G_TYPE_INT, decoder->rect_width,
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"height", G_TYPE_INT, decoder->rect_height,
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"bpp", G_TYPE_INT, decoder->bpp,
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"depth", G_TYPE_INT, decoder->depth,
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"endianness", G_TYPE_INT, G_BIG_ENDIAN,
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"red_mask", G_TYPE_INT, GST_READ_UINT32_BE (&red_mask),
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"green_mask", G_TYPE_INT, GST_READ_UINT32_BE (&green_mask),
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"blue_mask", G_TYPE_INT, GST_READ_UINT32_BE (&blue_mask), NULL);
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gst_pad_set_caps (GST_BASE_SRC_PAD (bsrc), caps);
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gst_caps_unref (caps);
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return TRUE;
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}
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static gboolean
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gst_rfb_src_stop (GstBaseSrc * bsrc)
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{
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GstRfbSrc *src = GST_RFB_SRC (bsrc);
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src->decoder->fd = -1;
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if (src->decoder->frame) {
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g_free (src->decoder->frame);
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src->decoder->frame = NULL;
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}
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if (src->decoder->prev_frame) {
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g_free (src->decoder->prev_frame);
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src->decoder->prev_frame = NULL;
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}
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return TRUE;
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}
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static GstFlowReturn
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gst_rfb_src_create (GstPushSrc * psrc, GstBuffer ** outbuf)
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{
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GstRfbSrc *src = GST_RFB_SRC (psrc);
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RfbDecoder *decoder = src->decoder;
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gulong newsize;
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GstFlowReturn ret;
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rfb_decoder_send_update_request (decoder, src->incremental_update,
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decoder->offset_x, decoder->offset_y, decoder->rect_width,
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decoder->rect_height);
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while (decoder->state != NULL) {
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rfb_decoder_iterate (decoder);
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}
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newsize = GST_BASE_SRC (psrc)->blocksize;
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/* Create the buffer. */
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ret = gst_pad_alloc_buffer (GST_BASE_SRC_PAD (GST_BASE_SRC (psrc)),
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GST_BUFFER_OFFSET_NONE, newsize,
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GST_PAD_CAPS (GST_BASE_SRC_PAD (GST_BASE_SRC (psrc))), outbuf);
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if (G_UNLIKELY (ret != GST_FLOW_OK)) {
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return GST_FLOW_ERROR;
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}
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memcpy (GST_BUFFER_DATA (*outbuf), decoder->frame, newsize);
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GST_BUFFER_SIZE (*outbuf) = newsize;
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GST_BUFFER_TIMESTAMP (*outbuf) =
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gst_clock_get_time (GST_ELEMENT_CLOCK (src)) -
|
|
GST_ELEMENT_CAST (src)->base_time;
|
|
|
|
return GST_FLOW_OK;
|
|
}
|
|
|
|
static gboolean
|
|
gst_rfb_src_event (GstBaseSrc * bsrc, GstEvent * event)
|
|
{
|
|
GstRfbSrc *src = GST_RFB_SRC (bsrc);
|
|
gdouble x, y;
|
|
gint button;
|
|
GstStructure *structure;
|
|
const gchar *event_type;
|
|
gboolean key_event, key_press;
|
|
|
|
key_event = FALSE;
|
|
|
|
switch (GST_EVENT_TYPE (event)) {
|
|
case GST_EVENT_NAVIGATION:
|
|
|
|
/* if in view_only mode ignore the navigation event */
|
|
if (src->view_only)
|
|
break;
|
|
|
|
structure = event->structure;
|
|
event_type = gst_structure_get_string (structure, "event");
|
|
|
|
if (strcmp (event_type, "key-press") == 0) {
|
|
key_event = key_press = TRUE;
|
|
} else if (strcmp (event_type, "key-release") == 0) {
|
|
key_event = TRUE;
|
|
key_press = FALSE;
|
|
}
|
|
|
|
if (key_event) {
|
|
#ifdef HAVE_X11
|
|
const gchar *key;
|
|
KeySym key_sym;
|
|
|
|
key = gst_structure_get_string (structure, "key");
|
|
key_sym = XStringToKeysym (key);
|
|
|
|
if (key_sym != NoSymbol)
|
|
rfb_decoder_send_key_event (src->decoder, key_sym, key_press);
|
|
#endif
|
|
break;
|
|
}
|
|
|
|
gst_structure_get_double (structure, "pointer_x", &x);
|
|
gst_structure_get_double (structure, "pointer_y", &y);
|
|
gst_structure_get_int (structure, "button", &button);
|
|
|
|
/* we need to take care of the offset's */
|
|
x += src->decoder->offset_x;
|
|
y += src->decoder->offset_y;
|
|
|
|
if (strcmp (event_type, "mouse-move") == 0) {
|
|
GST_LOG_OBJECT (src, "sending mouse-move event "
|
|
"button_mask=%d, x=%d, y=%d", src->button_mask, (gint) x, (gint) y);
|
|
rfb_decoder_send_pointer_event (src->decoder, src->button_mask,
|
|
(gint) x, (gint) y);
|
|
} else if (strcmp (event_type, "mouse-button-release") == 0) {
|
|
src->button_mask &= ~(1 << (button - 1));
|
|
GST_LOG_OBJECT (src, "sending mouse-button-release event "
|
|
"button_mask=%d, x=%d, y=%d", src->button_mask, (gint) x, (gint) y);
|
|
rfb_decoder_send_pointer_event (src->decoder, src->button_mask,
|
|
(gint) x, (gint) y);
|
|
} else if (strcmp (event_type, "mouse-button-press") == 0) {
|
|
src->button_mask |= (1 << (button - 1));
|
|
GST_LOG_OBJECT (src, "sending mouse-button-press event "
|
|
"button_mask=%d, x=%d, y=%d", src->button_mask, (gint) x, (gint) y);
|
|
rfb_decoder_send_pointer_event (src->decoder, src->button_mask,
|
|
(gint) x, (gint) y);
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
plugin_init (GstPlugin * plugin)
|
|
{
|
|
return gst_element_register (plugin, "rfbsrc", GST_RANK_NONE,
|
|
GST_TYPE_RFB_SRC);
|
|
}
|
|
|
|
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
|
|
GST_VERSION_MINOR,
|
|
"rfbsrc",
|
|
"Connects to a VNC server and decodes RFB stream",
|
|
plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)
|