/* GStreamer * Copyright (C) 2010 David Schleef <ds@schleef.org> * * 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., 51 Franklin St, Fifth Floor, * Boston, MA 02110-1301, USA. */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include <gst/gst.h> #include <gst/base/gstbasesink.h> #include "gstchecksumsink.h" static void gst_checksum_sink_dispose (GObject * object); static void gst_checksum_sink_finalize (GObject * object); static gboolean gst_checksum_sink_start (GstBaseSink * sink); static gboolean gst_checksum_sink_stop (GstBaseSink * sink); static GstFlowReturn gst_checksum_sink_render (GstBaseSink * sink, GstBuffer * buffer); static GstStaticPadTemplate gst_checksum_sink_sink_template = GST_STATIC_PAD_TEMPLATE ("sink", GST_PAD_SINK, GST_PAD_ALWAYS, GST_STATIC_CAPS_ANY); static GstStaticPadTemplate gst_checksum_sink_src_template = GST_STATIC_PAD_TEMPLATE ("src", GST_PAD_SRC, GST_PAD_ALWAYS, GST_STATIC_CAPS_ANY); /* class initialization */ #define gst_checksum_sink_parent_class parent_class G_DEFINE_TYPE (GstChecksumSink, gst_checksum_sink, GST_TYPE_BASE_SINK); static void gst_checksum_sink_class_init (GstChecksumSinkClass * klass) { GObjectClass *gobject_class = G_OBJECT_CLASS (klass); GstElementClass *element_class = GST_ELEMENT_CLASS (klass); GstBaseSinkClass *base_sink_class = GST_BASE_SINK_CLASS (klass); gobject_class->dispose = gst_checksum_sink_dispose; gobject_class->finalize = gst_checksum_sink_finalize; base_sink_class->start = GST_DEBUG_FUNCPTR (gst_checksum_sink_start); base_sink_class->stop = GST_DEBUG_FUNCPTR (gst_checksum_sink_stop); base_sink_class->render = GST_DEBUG_FUNCPTR (gst_checksum_sink_render); gst_element_class_add_pad_template (element_class, gst_static_pad_template_get (&gst_checksum_sink_src_template)); gst_element_class_add_pad_template (element_class, gst_static_pad_template_get (&gst_checksum_sink_sink_template)); gst_element_class_set_static_metadata (element_class, "Checksum sink", "Debug/Sink", "Calculates a checksum for buffers", "David Schleef <ds@schleef.org>"); } static void gst_checksum_sink_init (GstChecksumSink * checksumsink) { gst_base_sink_set_sync (GST_BASE_SINK (checksumsink), FALSE); } void gst_checksum_sink_dispose (GObject * object) { G_OBJECT_CLASS (parent_class)->dispose (object); } void gst_checksum_sink_finalize (GObject * object) { G_OBJECT_CLASS (parent_class)->finalize (object); } static gboolean gst_checksum_sink_start (GstBaseSink * sink) { return TRUE; } static gboolean gst_checksum_sink_stop (GstBaseSink * sink) { return TRUE; } static GstFlowReturn gst_checksum_sink_render (GstBaseSink * sink, GstBuffer * buffer) { gchar *s; GstMapInfo map; gst_buffer_map (buffer, &map, GST_MAP_READ); s = g_compute_checksum_for_data (G_CHECKSUM_SHA1, map.data, map.size); gst_buffer_unmap (buffer, &map); g_print ("%" GST_TIME_FORMAT " %s\n", GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buffer)), s); g_free (s); return GST_FLOW_OK; }