From b25f035fe5e02a14ae3f52912213ed6357f627f6 Mon Sep 17 00:00:00 2001 From: Carl-Anton Ingmarsson Date: Sun, 15 Mar 2009 21:21:49 +0100 Subject: vdpau: add basic base class for vdpau decoders --- sys/vdpau/gstvdpaudecoder.c | 224 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 224 insertions(+) create mode 100644 sys/vdpau/gstvdpaudecoder.c (limited to 'sys/vdpau/gstvdpaudecoder.c') diff --git a/sys/vdpau/gstvdpaudecoder.c b/sys/vdpau/gstvdpaudecoder.c new file mode 100644 index 00000000..f828d2ba --- /dev/null +++ b/sys/vdpau/gstvdpaudecoder.c @@ -0,0 +1,224 @@ +/* + * GStreamer + * Copyright (C) 2006 Stefan Kost + * Copyright (C) 2009 Carl-Anton Ingmarsson + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include +#include + +#include +#include +#include "gstvdpaudecoder.h" + +GST_DEBUG_CATEGORY_STATIC (gst_vdpaudecoder_debug); +#define GST_CAT_DEFAULT gst_vdpaudecoder_debug + +/* Filter signals and args */ +enum +{ + /* FILL ME */ + LAST_SIGNAL +}; + +enum +{ + PROP_0, + PROP_DISPLAY, + PROP_SILENT +}; + +static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src", + GST_PAD_SRC, + GST_PAD_ALWAYS, + GST_STATIC_CAPS ("video/x-raw-yuv, " + "framerate = (fraction) [ 0, MAX ], " + "width = (int) [ 1, MAX ], " "height = (int) [ 1, MAX ]")); + +/* debug category for fltering log messages + * + * FIXME:exchange the string 'Template vdpaudecoder' with your description + */ +#define DEBUG_INIT(bla) \ + GST_DEBUG_CATEGORY_INIT (gst_vdpaudecoder_debug, "vdpaudecoder", 0, "vdpaudecoder base class"); + +GST_BOILERPLATE_FULL (GstVDPAUDecoder, gst_vdpaudecoder, GstElement, + GST_TYPE_ELEMENT, DEBUG_INIT); + +static void gst_vdpaudecoder_set_property (GObject * object, guint prop_id, + const GValue * value, GParamSpec * pspec); +static void gst_vdpaudecoder_get_property (GObject * object, guint prop_id, + GValue * value, GParamSpec * pspec); + +static GstStateChangeReturn gst_vdpaudecoder_change_state (GstElement * element, + GstStateChange transition); + +/* GObject vmethod implementations */ + +static void +gst_vdpaudecoder_base_init (gpointer klass) +{ + GstElementClass *element_class = GST_ELEMENT_CLASS (klass); + + gst_element_class_set_details_simple (element_class, + "VDPAUDecoder", + "Generic/Filter", + "VDPAU decoder base class", + "Carl-Anton Ingmarsson "); + + gst_element_class_add_pad_template (element_class, + gst_static_pad_template_get (&src_template)); +} + +/* initialize the vdpaudecoder's class */ +static void +gst_vdpaudecoder_class_init (GstVDPAUDecoderClass * klass) +{ + GObjectClass *gobject_class; + GstElementClass *gstelement_class; + + gobject_class = (GObjectClass *) klass; + gstelement_class = (GstElementClass *) klass; + + gobject_class->set_property = gst_vdpaudecoder_set_property; + gobject_class->get_property = gst_vdpaudecoder_get_property; + + g_object_class_install_property (gobject_class, PROP_DISPLAY, + g_param_spec_string ("display", "Display", "X Display name", + NULL, G_PARAM_READWRITE | G_PARAM_CONSTRUCT)); + + g_object_class_install_property (gobject_class, PROP_SILENT, + g_param_spec_boolean ("silent", "Silent", "Produce verbose output ?", + FALSE, G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE)); + + gstelement_class->change_state = + GST_DEBUG_FUNCPTR (gst_vdpaudecoder_change_state); +} + +static void +gst_vdpaudecoder_init (GstVDPAUDecoder * dec, GstVDPAUDecoderClass * klass) +{ + dec->display = NULL; + dec->device = 0; + dec->silent = FALSE; + + dec->src = gst_pad_new_from_static_template (&src_template, "src"); + gst_element_add_pad (GST_ELEMENT (dec), dec->src); + + dec->sink = + gst_pad_new_from_template (gst_element_class_get_pad_template + (GST_ELEMENT_CLASS (klass), "sink"), "sink"); + gst_element_add_pad (GST_ELEMENT (dec), dec->sink); +} + +static GstStateChangeReturn +gst_vdpaudecoder_change_state (GstElement * element, GstStateChange transition) +{ + GstVDPAUDecoder *dec; + + dec = GST_VDPAUDECODER (element); + + switch (transition) { + case GST_STATE_CHANGE_NULL_TO_READY: + { + Display *display; + int screen; + VdpStatus status; + + /* FIXME: We probably want to use the same VdpDevice for every VDPAU element */ + display = XOpenDisplay (dec->display); + if (!display) { + GST_ELEMENT_ERROR (dec, RESOURCE, WRITE, ("Could not initialise VDPAU"), + ("Could not open display")); + return GST_STATE_CHANGE_FAILURE; + } + + screen = DefaultScreen (display); + status = vdp_device_create_x11 (display, screen, &dec->device, NULL); + if (status != VDP_STATUS_OK) { + GST_ELEMENT_ERROR (dec, RESOURCE, WRITE, ("Could not initialise VDPAU"), + ("Could not create VDPAU device")); + XCloseDisplay (display); + + return GST_STATE_CHANGE_FAILURE; + } + XCloseDisplay (display); + break; + } + + default: + break; + } + + return GST_STATE_CHANGE_SUCCESS; +} + +static void +gst_vdpaudecoder_set_property (GObject * object, guint prop_id, + const GValue * value, GParamSpec * pspec) +{ + GstVDPAUDecoder *dec = GST_VDPAUDECODER (object); + + switch (prop_id) { + case PROP_DISPLAY: + g_free (dec->display); + dec->display = g_value_dup_string (value); + break; + case PROP_SILENT: + dec->silent = g_value_get_boolean (value); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + +static void +gst_vdpaudecoder_get_property (GObject * object, guint prop_id, + GValue * value, GParamSpec * pspec) +{ + GstVDPAUDecoder *dec = GST_VDPAUDECODER (object); + + switch (prop_id) { + case PROP_DISPLAY: + g_value_set_string (value, dec->display); + break; + case PROP_SILENT: + g_value_set_boolean (value, dec->silent); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + +static gboolean +plugin_init (GstPlugin * plugin) +{ + return TRUE; +} + +GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, + GST_VERSION_MINOR, + "vdpau", + "vdpau elements", + plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN) -- cgit v1.2.1