<html> <head> <meta content="text/html; charset=ISO-8859-1" http-equiv="Content-Type"> </head> <body bgcolor="#FFFFFF" text="#000000"> On 06/14/2012 04:44 PM, iron_guitarist1987 wrote: <blockquote cite="mid:1339685057339-4655287.post@n4.nabble.com" type="cite"> <pre wrap="">Hello, I'm trying to create the simplest text source element that outputs the same string over and over again. I tried doing something with the audiotestsrc, but I know is wrong. Below is what I have so far. Any ideas?</pre> </blockquote> <meta http-equiv="content-type" content="text/html; charset=ISO-8859-1"> <a href="https://bugzilla.gnome.org/show_bug.cgi?id=657684">https://bugzilla.gnome.org/show_bug.cgi?id=657684</a> Stefan <blockquote cite="mid:1339685057339-4655287.post@n4.nabble.com" type="cite"> <pre wrap=""> thanks /* GStreamer * Copyright (C) 2005 Stefan Kost <a class="moz-txt-link-rfc2396E" href="mailto:ensonic@users.sf.net"><ensonic@users.sf.net></a> * * 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. */ /** * SECTION:element-texttestsrc * * Texttestsrc can be used to generate basic strings. */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include <stdlib.h> #include <string.h> #include <gst/controller/gstcontroller.h> #include "texttestsrc.h" GST_DEBUG_CATEGORY_STATIC (text_test_src_debug); #define GST_CAT_DEFAULT text_test_src_debug enum { PROP_0, PROP_LAST }; static GstStaticPadTemplate gst_text_test_src_src_template = GST_STATIC_PAD_TEMPLATE ("src", GST_PAD_SRC, GST_PAD_ALWAYS, GST_STATIC_CAPS ("text/plain") ); GST_BOILERPLATE (GstTexttestsrc, gst_text_test_src, GstBaseSrc, GST_TYPE_BASE_SRC); #define GST_TYPE_TEXT_TEST_SRC_WAVE (gst_audiostestsrc_wave_get_type()) static void gst_text_test_src_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec); static void gst_text_test_src_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec); static GstFlowReturn gst_text_test_src_create (GstBaseSrc * basesrc, guint64 offset, guint length, GstBuffer ** buffer); static void gst_text_test_src_base_init (gpointer g_class) { GstElementClass *element_class = GST_ELEMENT_CLASS (g_class); gst_element_class_add_pad_template (element_class, gst_static_pad_template_get (&gst_text_test_src_src_template)); gst_element_class_set_details_simple (element_class, "Audio test source", "Source/Audio", "Creates audio test signals of given frequency and volume", "Stefan Kost <a class="moz-txt-link-rfc2396E" href="mailto:ensonic@users.sf.net"><ensonic@users.sf.net></a>"); } static void gst_text_test_src_class_init (GstTexttestsrcClass * klass) { GObjectClass *gobject_class; GstBaseSrcClass *gstbasesrc_class; gobject_class = (GObjectClass *) klass; gstbasesrc_class = (GstBaseSrcClass *) klass; gobject_class->set_property = gst_text_test_src_set_property; gobject_class->get_property = gst_text_test_src_get_property; gstbasesrc_class->create = GST_DEBUG_FUNCPTR (gst_text_test_src_create); } static void gst_text_test_src_init (GstTexttestsrc * src, GstTexttestsrcClass * g_class) { GstPad *pad = GST_BASE_SRC_PAD (src); /* we operate in time */ gst_base_src_set_format (GST_BASE_SRC (src), GST_FORMAT_TIME); gst_base_src_set_blocksize (GST_BASE_SRC (src), -1); } static gboolean gst_text_test_src_stop (GstBaseSrc * basesrc) { return TRUE; } static GstFlowReturn gst_text_test_src_create (GstBaseSrc * basesrc, guint64 offset, guint length, GstBuffer ** buffer) { GstFlowReturn res; GstTexttestsrc *src; src = GST_TEXT_TEST_SRC (basesrc); *buffer = "This is my test string"; return GST_FLOW_OK; } static void gst_text_test_src_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec) { GstTexttestsrc *src = GST_TEXT_TEST_SRC (object); switch (prop_id) { default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void gst_text_test_src_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec) { GstTexttestsrc *src = GST_TEXT_TEST_SRC (object); switch (prop_id) { default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static gboolean plugin_init (GstPlugin * plugin) { /* initialize gst controller library */ gst_controller_init (NULL, NULL); GST_DEBUG_CATEGORY_INIT (text_test_src_debug, "texttestsrc", 0, "Text Test Source"); return gst_element_register (plugin, "texttestsrc", GST_RANK_NONE, GST_TYPE_TEXT_TEST_SRC); } GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, GST_VERSION_MINOR, "texttestsrc", "Creates test string", plugin_init, VERSION, "LGPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN); ----- The greatest trick the devil ever pulled was convincing the World that Java was better than C++. -- View this message in context: <a class="moz-txt-link-freetext" href="http://gstreamer-devel.966125.n4.nabble.com/Text-test-source-element-tp4655287.html">http://gstreamer-devel.966125.n4.nabble.com/Text-test-source-element-tp4655287.html</a> Sent from the GStreamer-devel mailing list archive at Nabble.com. _______________________________________________ gstreamer-devel mailing list <a class="moz-txt-link-abbreviated" href="mailto:gstreamer-devel@lists.freedesktop.org">gstreamer-devel@lists.freedesktop.org</a> <a class="moz-txt-link-freetext" href="http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel">http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a> </pre> </blockquote> </body> </html>