/* * gstgdkpixbuf.c * GStreamer * Copyright (C) 1999-2001 Erik Walthinsen * Copyright (C) 2003 David A. Schleef * * 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 "gstgdkpixbuf.h" static GstElementDetails plugin_details = { "GdkPixbuf image decoder", "Codec/Image", "LGPL", "Decodes images in a video stream using GdkPixbuf", VERSION, "David A. Schleef ", "(C) 2002, 2003" }; /* Filter signals and args */ enum { /* FILL ME */ LAST_SIGNAL }; enum { ARG_0, ARG_SILENT }; GST_PAD_TEMPLATE_FACTORY (gst_gdk_pixbuf_sink_factory, "sink", GST_PAD_SINK, GST_PAD_ALWAYS, GST_CAPS_NEW("gdk_pixbuf_sink", "image/png", NULL), GST_CAPS_NEW("gdk_pixbuf_sink", "image/jpeg", NULL), GST_CAPS_NEW("gdk_pixbuf_sink", "image/gif", NULL), GST_CAPS_NEW("gdk_pixbuf_sink", "image/x-icon", NULL), GST_CAPS_NEW("gdk_pixbuf_sink", "application/x-navi-animation", NULL), GST_CAPS_NEW("gdk_pixbuf_sink", "image/x-cmu-raster", NULL), GST_CAPS_NEW("gdk_pixbuf_sink", "image/x-sun-raster", NULL), GST_CAPS_NEW("gdk_pixbuf_sink", "image/x-pixmap", NULL), GST_CAPS_NEW("gdk_pixbuf_sink", "image/tiff", NULL), GST_CAPS_NEW("gdk_pixbuf_sink", "image/x-portable-anymap", NULL), GST_CAPS_NEW("gdk_pixbuf_sink", "image/x-portable-bitmap", NULL), GST_CAPS_NEW("gdk_pixbuf_sink", "image/x-portable-graymap", NULL), GST_CAPS_NEW("gdk_pixbuf_sink", "image/x-portable-pixmap", NULL), GST_CAPS_NEW("gdk_pixbuf_sink", "image/bmp", NULL), GST_CAPS_NEW("gdk_pixbuf_sink", "image/x-bmp", NULL), GST_CAPS_NEW("gdk_pixbuf_sink", "image/x-MS-bmp", NULL), GST_CAPS_NEW("gdk_pixbuf_sink", "image/vnd.wap.wbmp", NULL), GST_CAPS_NEW("gdk_pixbuf_sink", "image/x-bitmap", NULL), GST_CAPS_NEW("gdk_pixbuf_sink", "image/x-tga", NULL) ); GST_PAD_TEMPLATE_FACTORY (gst_gdk_pixbuf_src_factory, "src", GST_PAD_SRC, GST_PAD_ALWAYS, GST_CAPS_NEW( "gdk_pixbuf_src", "video/x-raw-rgb", "width", GST_PROPS_INT_RANGE(1,INT_MAX), "height", GST_PROPS_INT_RANGE(1,INT_MAX), /* well, it's needed for connectivity but this * doesn't really make sense... */ "framerate", GST_PROPS_FLOAT_RANGE(0, G_MAXFLOAT), "bpp", GST_PROPS_INT(32), "depth", GST_PROPS_INT(24), "endianness", GST_PROPS_INT(G_BIG_ENDIAN), "red_mask", GST_PROPS_INT(0x00ff0000), "green_mask", GST_PROPS_INT(0x0000ff00), "blue_mask", GST_PROPS_INT(0x000000ff) ) ); static void gst_gdk_pixbuf_class_init (GstGdkPixbufClass *klass); static void gst_gdk_pixbuf_init (GstGdkPixbuf *filter); static void gst_gdk_pixbuf_set_property(GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec); static void gst_gdk_pixbuf_get_property(GObject *object, guint prop_id, GValue *value, GParamSpec *pspec); static void gst_gdk_pixbuf_chain (GstPad *pad, GstData *_data); static GstElementClass *parent_class = NULL; static GstPadLinkReturn gst_gdk_pixbuf_sink_link (GstPad *pad, GstCaps *caps) { GstGdkPixbuf *filter; filter = GST_GDK_PIXBUF (gst_pad_get_parent (pad)); g_return_val_if_fail (filter != NULL, GST_PAD_LINK_REFUSED); g_return_val_if_fail (GST_IS_GDK_PIXBUF (filter), GST_PAD_LINK_REFUSED); if (GST_CAPS_IS_FIXED (caps)) { return GST_PAD_LINK_OK; } return GST_PAD_LINK_DELAYED; } #if GDK_PIXBUF_MAJOR == 2 && GDK_PIXBUF_MINOR < 2 /* gdk-pixbuf prior to 2.2 didn't have gdk_pixbuf_get_formats(). * These are just the formats that gdk-pixbuf is known to support. * But maybe not -- it may have been compiled without an external * library. */ static GstCaps *gst_gdk_pixbuf_get_capslist(void) { GstCaps *capslist; capslist = gst_caps_chain( GST_CAPS_NEW("gdk_pixbuf_sink", "image/png", NULL), GST_CAPS_NEW("gdk_pixbuf_sink", "image/jpeg", NULL), GST_CAPS_NEW("gdk_pixbuf_sink", "image/gif", NULL), GST_CAPS_NEW("gdk_pixbuf_sink", "image/x-icon", NULL), GST_CAPS_NEW("gdk_pixbuf_sink", "application/x-navi-animation", NULL), GST_CAPS_NEW("gdk_pixbuf_sink", "image/x-cmu-raster", NULL), GST_CAPS_NEW("gdk_pixbuf_sink", "image/x-sun-raster", NULL), GST_CAPS_NEW("gdk_pixbuf_sink", "image/x-pixmap", NULL), GST_CAPS_NEW("gdk_pixbuf_sink", "image/tiff", NULL), GST_CAPS_NEW("gdk_pixbuf_sink", "image/x-portable-anymap", NULL), GST_CAPS_NEW("gdk_pixbuf_sink", "image/x-portable-bitmap", NULL), GST_CAPS_NEW("gdk_pixbuf_sink", "image/x-portable-graymap", NULL), GST_CAPS_NEW("gdk_pixbuf_sink", "image/x-portable-pixmap", NULL), GST_CAPS_NEW("gdk_pixbuf_sink", "image/bmp", NULL), GST_CAPS_NEW("gdk_pixbuf_sink", "image/x-bmp", NULL), GST_CAPS_NEW("gdk_pixbuf_sink", "image/x-MS-bmp", NULL), GST_CAPS_NEW("gdk_pixbuf_sink", "image/vnd.wap.wbmp", NULL), GST_CAPS_NEW("gdk_pixbuf_sink", "image/x-bitmap", NULL), GST_CAPS_NEW("gdk_pixbuf_sink", "image/x-tga", NULL), NULL); return capslist; } #else static GstCaps *gst_gdk_pixbuf_get_capslist(void) { GSList *slist; GSList *slist0; GdkPixbufFormat *pixbuf_format; char **mimetypes; char **mimetype; static GstCaps *capslist = NULL; if(capslist==NULL){ slist0 = gdk_pixbuf_get_formats(); for(slist = slist0;slist;slist=g_slist_next(slist)){ pixbuf_format = slist->data; mimetypes = gdk_pixbuf_format_get_mime_types(pixbuf_format); for(mimetype = mimetypes; *mimetype; mimetype++){ capslist = gst_caps_append(capslist, gst_caps_new("ack",*mimetype,NULL)); } g_free(mimetypes); } gst_caps_ref(capslist); gst_caps_sink(capslist); g_slist_free(slist0); g_print("%s\n",gst_caps_to_string(capslist)); } return capslist; } #endif static GstCaps *gst_gdk_pixbuf_sink_getcaps(GstPad *pad, GstCaps *caps) { GstGdkPixbuf *filter; filter = GST_GDK_PIXBUF (gst_pad_get_parent (pad)); g_return_val_if_fail (filter != NULL, NULL); g_return_val_if_fail (GST_IS_GDK_PIXBUF (filter), NULL); return gst_gdk_pixbuf_get_capslist(); } GType gst_gdk_pixbuf_get_type (void) { static GType plugin_type = 0; if (!plugin_type) { static const GTypeInfo plugin_info = { sizeof (GstGdkPixbufClass), NULL, NULL, (GClassInitFunc) gst_gdk_pixbuf_class_init, NULL, NULL, sizeof (GstGdkPixbuf), 0, (GInstanceInitFunc) gst_gdk_pixbuf_init, }; plugin_type = g_type_register_static (GST_TYPE_ELEMENT, "GstGdkPixbuf", &plugin_info, 0); } return plugin_type; } /* initialize the plugin's class */ static void gst_gdk_pixbuf_class_init (GstGdkPixbufClass *klass) { GObjectClass *gobject_class; GstElementClass *gstelement_class; gobject_class = (GObjectClass*) klass; gstelement_class = (GstElementClass*) klass; parent_class = g_type_class_ref (GST_TYPE_ELEMENT); g_object_class_install_property (gobject_class, ARG_SILENT, g_param_spec_boolean ("silent", "Silent", "Produce verbose output ?", FALSE, G_PARAM_READWRITE)); gobject_class->set_property = gst_gdk_pixbuf_set_property; gobject_class->get_property = gst_gdk_pixbuf_get_property; } static void gst_gdk_pixbuf_init (GstGdkPixbuf *filter) { filter->sinkpad = gst_pad_new_from_template (gst_gdk_pixbuf_sink_factory (), "sink"); gst_pad_set_link_function (filter->sinkpad, gst_gdk_pixbuf_sink_link); gst_pad_set_getcaps_function (filter->sinkpad, gst_gdk_pixbuf_sink_getcaps); filter->srcpad = gst_pad_new_from_template (gst_gdk_pixbuf_src_factory (), "src"); gst_element_add_pad (GST_ELEMENT (filter), filter->sinkpad); gst_element_add_pad (GST_ELEMENT (filter), filter->srcpad); gst_pad_set_chain_function (filter->sinkpad, gst_gdk_pixbuf_chain); } static void gst_gdk_pixbuf_chain (GstPad *pad, GstData *_data) { GstBuffer *buf = GST_BUFFER (_data); GstGdkPixbuf *filter; GdkPixbufLoader *pixbuf_loader; GdkPixbuf *pixbuf; GstBuffer *outbuf; GError *error = NULL; g_print("gst_gdk_pixbuf_chain\n"); g_return_if_fail (GST_IS_PAD (pad)); g_return_if_fail (buf != NULL); filter = GST_GDK_PIXBUF (GST_OBJECT_PARENT (pad)); g_return_if_fail (GST_IS_GDK_PIXBUF (filter)); pixbuf_loader = gdk_pixbuf_loader_new(); //pixbuf_loader = gdk_pixbuf_loader_new_with_type("gif"); gdk_pixbuf_loader_write(pixbuf_loader, GST_BUFFER_DATA(buf), GST_BUFFER_SIZE(buf), &error); gdk_pixbuf_loader_close(pixbuf_loader, &error); pixbuf = gdk_pixbuf_loader_get_pixbuf(pixbuf_loader); g_print("width=%d height=%d\n", gdk_pixbuf_get_width(pixbuf), gdk_pixbuf_get_height(pixbuf)); if(filter->image_size == 0){ GstCaps *caps; filter->width = gdk_pixbuf_get_width(pixbuf); filter->height = gdk_pixbuf_get_height(pixbuf); filter->rowstride = gdk_pixbuf_get_rowstride(pixbuf); filter->image_size = filter->rowstride * filter->height; caps = gst_pad_get_caps(filter->srcpad); gst_caps_set(caps, "width", GST_PROPS_INT(filter->width)); gst_caps_set(caps, "height", GST_PROPS_INT(filter->height)); gst_caps_set(caps, "framerate", GST_PROPS_FLOAT(0.)); gst_pad_try_set_caps(filter->srcpad, caps); } outbuf = gst_buffer_new(); GST_BUFFER_TIMESTAMP(outbuf) = GST_BUFFER_TIMESTAMP(buf); GST_BUFFER_DURATION(outbuf) = GST_BUFFER_DURATION(buf); GST_BUFFER_SIZE(outbuf) = filter->image_size; GST_BUFFER_DATA(outbuf) = g_malloc(filter->image_size); memcpy(GST_BUFFER_DATA(outbuf), gdk_pixbuf_get_pixels(pixbuf), filter->image_size); g_object_unref(G_OBJECT(pixbuf_loader)); gst_pad_push (filter->srcpad, GST_DATA (outbuf)); } static void gst_gdk_pixbuf_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec) { GstGdkPixbuf *filter; g_return_if_fail (GST_IS_GDK_PIXBUF (object)); filter = GST_GDK_PIXBUF (object); switch (prop_id) { case ARG_SILENT: //filter->silent = g_value_get_boolean (value); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void gst_gdk_pixbuf_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec) { GstGdkPixbuf *filter; g_return_if_fail (GST_IS_GDK_PIXBUF (object)); filter = GST_GDK_PIXBUF (object); switch (prop_id) { case ARG_SILENT: //g_value_set_boolean (value, filter->silent); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } /* entry point to initialize the plug-in * initialize the plug-in itself * register the element factories and pad templates * register the features */ static gboolean plugin_init (GModule *module, GstPlugin *plugin) { GstElementFactory *factory; factory = gst_element_factory_new ("gdkpixbufdec", GST_TYPE_GDK_PIXBUF, &plugin_details); g_return_val_if_fail (factory != NULL, FALSE); gst_element_factory_add_pad_template (factory, gst_gdk_pixbuf_src_factory ()); gst_element_factory_add_pad_template (factory, gst_gdk_pixbuf_sink_factory ()); gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory)); /* plugin initialisation succeeded */ return TRUE; } /* this is the structure that gst-register looks for * so keep the name plugin_desc, or you cannot get your plug-in registered */ GstPluginDesc plugin_desc = { GST_VERSION_MAJOR, GST_VERSION_MINOR, "gdkpixbuf", plugin_init };