gstreamer/gst/debugutils/cpureport.c

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/* GStreamer Cpu Report Element
* Copyright (C) <2010> Zaheer Abbas Merali <zaheerabbas merali 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 <string.h>
#include <math.h>
#include <time.h>
#include "cpureport.h"
enum
{
ARG_0,
};
GstStaticPadTemplate cpu_report_src_template = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS_ANY);
GstStaticPadTemplate cpu_report_sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS_ANY);
static GstFlowReturn gst_cpu_report_transform_ip (GstBaseTransform * trans,
GstBuffer * buf);
static gboolean gst_cpu_report_start (GstBaseTransform * trans);
static gboolean gst_cpu_report_stop (GstBaseTransform * trans);
#define gst_cpu_report_parent_class parent_class
G_DEFINE_TYPE (GstCpuReport, gst_cpu_report, GST_TYPE_BASE_TRANSFORM);
static void
gst_cpu_report_finalize (GObject * obj)
{
G_OBJECT_CLASS (parent_class)->finalize (obj);
}
static void
gst_cpu_report_class_init (GstCpuReportClass * g_class)
{
GstBaseTransformClass *gstbasetrans_class;
GstElementClass *element_class;
GObjectClass *gobject_class;
gobject_class = G_OBJECT_CLASS (g_class);
element_class = GST_ELEMENT_CLASS (g_class);
gstbasetrans_class = GST_BASE_TRANSFORM_CLASS (g_class);
gobject_class->finalize = gst_cpu_report_finalize;
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&cpu_report_sink_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&cpu_report_src_template));
gst_element_class_set_static_metadata (element_class, "CPU report",
"Testing",
"Post cpu usage information every buffer",
"Zaheer Abbas Merali <zaheerabbas at merali dot org>");
gstbasetrans_class->transform_ip =
GST_DEBUG_FUNCPTR (gst_cpu_report_transform_ip);
gstbasetrans_class->start = GST_DEBUG_FUNCPTR (gst_cpu_report_start);
gstbasetrans_class->stop = GST_DEBUG_FUNCPTR (gst_cpu_report_stop);
}
static void
gst_cpu_report_init (GstCpuReport * report)
{
gst_base_transform_set_passthrough (GST_BASE_TRANSFORM (report), TRUE);
}
static GstFlowReturn
gst_cpu_report_transform_ip (GstBaseTransform * trans, GstBuffer * buf)
{
GstCpuReport *filter;
GTimeVal cur_time;
clock_t cur_cpu_time;
GstMessage *msg;
GstStructure *s;
gint64 time_taken;
g_get_current_time (&cur_time);
cur_cpu_time = clock ();
filter = GST_CPU_REPORT (trans);
time_taken = GST_TIMEVAL_TO_TIME (cur_time) -
GST_TIMEVAL_TO_TIME (filter->last_time);
s = gst_structure_new ("cpu-report", "cpu-time", G_TYPE_DOUBLE,
((gdouble) (cur_cpu_time - filter->last_cpu_time)),
"actual-time", G_TYPE_INT64, time_taken, "buffer-time", G_TYPE_INT64,
GST_BUFFER_TIMESTAMP (buf), NULL);
msg = gst_message_new_element (GST_OBJECT_CAST (filter), s);
gst_element_post_message (GST_ELEMENT_CAST (filter), msg);
filter->last_time = cur_time;
filter->last_cpu_time = cur_cpu_time;
return GST_FLOW_OK;
}
static gboolean
gst_cpu_report_start (GstBaseTransform * trans)
{
GstCpuReport *filter;
filter = GST_CPU_REPORT (trans);
g_get_current_time (&filter->last_time);
filter->start_time = filter->last_time;
filter->last_cpu_time = clock ();
return TRUE;
}
static gboolean
gst_cpu_report_stop (GstBaseTransform * trans)
{
/* anything we should be doing here? */
return TRUE;
}