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gstreamer/gst/elements/gststatistics.c
Andy Wingo 7820d80e33 adding ::license field to core plugins 
Original commit message from CVS:
adding ::license field to core plugins
2002-09-29 17:52:31 +00:00

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/* GStreamer
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2000 Wim Taymans <wtay@chello.be>
*
* gststatistics.c:
*
* 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.
*/
#include <gststatistics.h>
GstElementDetails gst_statistics_details = {
"Statistics",
"Generic",
"LGPL",
"Statistics on buffers/bytes/events",
VERSION,
"David I. Lehn <dlehn@users.sourceforge.net>",
"(C) 2001",
};
/* Statistics signals and args */
enum {
SIGNAL_UPDATE,
LAST_SIGNAL
};
enum {
ARG_0,
ARG_BUFFERS,
ARG_BYTES,
ARG_EVENTS,
ARG_BUFFER_UPDATE_FREQ,
ARG_BYTES_UPDATE_FREQ,
ARG_EVENT_UPDATE_FREQ,
ARG_UPDATE_ON_EOS,
ARG_UPDATE,
ARG_SILENT,
};
static void gst_statistics_class_init (GstStatisticsClass *klass);
static void gst_statistics_init (GstStatistics *statistics);
static void gst_statistics_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec);
static void gst_statistics_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec);
static void gst_statistics_chain (GstPad *pad, GstBuffer *buf);
static void gst_statistics_reset (GstStatistics *statistics);
static void gst_statistics_print (GstStatistics *statistics);
static GstElementClass *parent_class = NULL;
static guint gst_statistics_signals[LAST_SIGNAL] = { 0, };
static stats zero_stats = { 0, };
GType
gst_statistics_get_type (void)
{
static GType statistics_type = 0;
if (!statistics_type) {
static const GTypeInfo statistics_info = {
sizeof(GstStatisticsClass), NULL,
NULL,
(GClassInitFunc)gst_statistics_class_init,
NULL,
NULL,
sizeof(GstStatistics),
0,
(GInstanceInitFunc)gst_statistics_init,
};
statistics_type = g_type_register_static (GST_TYPE_ELEMENT, "GstStatistics", &statistics_info, 0);
}
return statistics_type;
}
static void
gst_statistics_class_init (GstStatisticsClass *klass)
{
GObjectClass *gobject_class;
gobject_class = (GObjectClass*)klass;
parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_BUFFERS,
g_param_spec_int64 ("buffers", "buffers", "total buffers count",
0, G_MAXINT64, 0, G_PARAM_READABLE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_BYTES,
g_param_spec_int64 ("bytes", "bytes", "total bytes count",
0, G_MAXINT64, 0, G_PARAM_READABLE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_EVENTS,
g_param_spec_int64 ("events", "events", "total event count",
0, G_MAXINT64, 0, G_PARAM_READABLE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_BUFFER_UPDATE_FREQ,
g_param_spec_int64 ("buffer_update_freq", "buffer update freq", "buffer update frequency",
0, G_MAXINT64, 0, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_BYTES_UPDATE_FREQ,
g_param_spec_int64 ("bytes_update_freq", "bytes update freq", "bytes update frequency",
0, G_MAXINT64, 0, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_EVENT_UPDATE_FREQ,
g_param_spec_int64 ("event_update_freq", "event update freq", "event update frequency",
0, G_MAXINT64, 0, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_UPDATE_ON_EOS,
g_param_spec_boolean ("update_on_eos", "update on EOS", "update on EOS event",
TRUE,G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_UPDATE,
g_param_spec_boolean ("update", "update", "update",
TRUE,G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_SILENT,
g_param_spec_boolean ("silent", "silent", "silent",
TRUE,G_PARAM_READWRITE));
gst_statistics_signals[SIGNAL_UPDATE] =
g_signal_new ("update", G_TYPE_FROM_CLASS(klass), G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GstStatisticsClass, update), NULL, NULL,
g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0);
gobject_class->set_property = GST_DEBUG_FUNCPTR (gst_statistics_set_property);
gobject_class->get_property = GST_DEBUG_FUNCPTR (gst_statistics_get_property);
}
static GstBufferPool*
gst_statistics_get_bufferpool (GstPad *pad)
{
GstStatistics *statistics;
statistics = GST_STATISTICS (gst_pad_get_parent (pad));
return gst_pad_get_bufferpool (statistics->srcpad);
}
static void
gst_statistics_init (GstStatistics *statistics)
{
statistics->sinkpad = gst_pad_new ("sink", GST_PAD_SINK);
gst_element_add_pad (GST_ELEMENT (statistics), statistics->sinkpad);
gst_pad_set_chain_function (statistics->sinkpad, GST_DEBUG_FUNCPTR (gst_statistics_chain));
gst_pad_set_bufferpool_function (statistics->sinkpad, GST_DEBUG_FUNCPTR (gst_statistics_get_bufferpool));
statistics->srcpad = gst_pad_new ("src", GST_PAD_SRC);
gst_element_add_pad (GST_ELEMENT (statistics), statistics->srcpad);
statistics->timer = NULL;
statistics->last_timer = NULL;
gst_statistics_reset(statistics);
}
static void
gst_statistics_reset (GstStatistics *statistics)
{
g_return_if_fail (statistics != NULL);
g_return_if_fail (GST_IS_STATISTICS (statistics));
statistics->stats.buffers = 0;
statistics->stats.bytes = 0;
statistics->stats.events = 0;
statistics->last_stats.buffers = 0;
statistics->last_stats.bytes = 0;
statistics->last_stats.events = 0;
statistics->update_count.buffers = 0;
statistics->update_count.bytes = 0;
statistics->update_count.events = 0;
statistics->update_freq.buffers = 0;
statistics->update_freq.bytes = 0;
statistics->update_freq.events = 0;
statistics->update_on_eos = TRUE;
statistics->update = TRUE;
statistics->silent = FALSE;
if (!statistics->timer) {
statistics->timer = g_timer_new();
}
if (!statistics->last_timer) {
statistics->last_timer = g_timer_new();
}
}
static void
print_stats(gboolean first, const gchar *name, const gchar *type, stats *base, stats *final, double time)
{
const gchar *header0 = "statistics";
const gchar *headerN = " ";
stats delta;
delta.buffers = final->buffers - base->buffers;
delta.bytes = final->bytes - base->bytes;
delta.events = final->events - base->events;
g_print("%s: (%s) %s: s:%g buffers:%lld bytes:%lld events:%lld\n",
first ? header0 : headerN,
name, type, time,
final->buffers,
final->bytes,
final->events);
g_print("%s: (%s) %s: buf/s:%g B/s:%g e/s:%g B/buf:%g\n",
headerN,
name, type,
delta.buffers/time,
delta.bytes/time,
delta.events/time,
((double)delta.bytes/(double)delta.buffers));
}
static void
gst_statistics_print (GstStatistics *statistics)
{
const gchar *name;
double elapsed;
double last_elapsed;
g_return_if_fail (statistics != NULL);
g_return_if_fail (GST_IS_STATISTICS (statistics));
name = gst_object_get_name(GST_OBJECT(statistics));
if (!name) {
name = "";
}
elapsed = g_timer_elapsed(statistics->timer, NULL);
last_elapsed = g_timer_elapsed(statistics->last_timer, NULL);
print_stats(1, name, "total", &zero_stats, &statistics->stats, elapsed);
print_stats(0, name, "last", &statistics->last_stats, &statistics->stats, last_elapsed);
statistics->last_stats = statistics->stats;
g_timer_reset(statistics->last_timer);
}
static void
gst_statistics_chain (GstPad *pad, GstBuffer *buf)
{
GstStatistics *statistics;
gboolean update = FALSE;
g_return_if_fail (pad != NULL);
g_return_if_fail (GST_IS_PAD (pad));
g_return_if_fail (buf != NULL);
statistics = GST_STATISTICS (gst_pad_get_parent (pad));
if (GST_IS_EVENT(buf)) {
GstEvent *event = GST_EVENT (buf);
statistics->stats.events += 1;
if (GST_EVENT_TYPE(event) == GST_EVENT_EOS) {
gst_element_set_eos (GST_ELEMENT (statistics));
if (statistics->update_on_eos) {
update = TRUE;
}
}
if (statistics->update_freq.events) {
statistics->update_count.events += 1;
if (statistics->update_count.events == statistics->update_freq.events) {
statistics->update_count.events = 0;
update = TRUE;
}
}
} else {
statistics->stats.buffers += 1;
if (statistics->update_freq.buffers) {
statistics->update_count.buffers += 1;
if (statistics->update_count.buffers == statistics->update_freq.buffers) {
statistics->update_count.buffers = 0;
update = TRUE;
}
}
statistics->stats.bytes += GST_BUFFER_SIZE(buf);
if (statistics->update_freq.bytes) {
statistics->update_count.bytes += GST_BUFFER_SIZE(buf);
if (statistics->update_count.bytes >= statistics->update_freq.bytes) {
statistics->update_count.bytes = 0;
update = TRUE;
}
}
}
if (update) {
if (statistics->update) {
GST_DEBUG_ELEMENT (GST_CAT_DATAFLOW, statistics, "pre update emit\n");
g_signal_emit (G_OBJECT (statistics), gst_statistics_signals[SIGNAL_UPDATE], 0);
GST_DEBUG_ELEMENT (GST_CAT_DATAFLOW, statistics, "post update emit\n");
}
if (!statistics->silent) {
gst_statistics_print(statistics);
}
}
gst_pad_push (statistics->srcpad, buf);
}
static void
gst_statistics_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
{
GstStatistics *statistics;
/* it's not null if we got it, but it might not be ours */
g_return_if_fail (GST_IS_STATISTICS (object));
statistics = GST_STATISTICS (object);
switch (prop_id) {
case ARG_BUFFER_UPDATE_FREQ:
statistics->update_freq.buffers = g_value_get_int64 (value);
break;
case ARG_BYTES_UPDATE_FREQ:
statistics->update_freq.bytes = g_value_get_int64 (value);
break;
case ARG_EVENT_UPDATE_FREQ:
statistics->update_freq.events = g_value_get_int64 (value);
break;
case ARG_UPDATE_ON_EOS:
statistics->update_on_eos = g_value_get_boolean (value);
break;
case ARG_UPDATE:
statistics->update = g_value_get_boolean (value);
break;
case ARG_SILENT:
statistics->silent = g_value_get_boolean (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void gst_statistics_get_property(GObject *object, guint prop_id, GValue *value, GParamSpec *pspec) {
GstStatistics *statistics;
/* it's not null if we got it, but it might not be ours */
g_return_if_fail (GST_IS_STATISTICS (object));
statistics = GST_STATISTICS (object);
switch (prop_id) {
case ARG_BUFFERS:
g_value_set_int64 (value, statistics->stats.buffers);
break;
case ARG_BYTES:
g_value_set_int64 (value, statistics->stats.bytes);
break;
case ARG_EVENTS:
g_value_set_int64 (value, statistics->stats.events);
break;
case ARG_BUFFER_UPDATE_FREQ:
g_value_set_int64 (value, statistics->update_freq.buffers);
break;
case ARG_BYTES_UPDATE_FREQ:
g_value_set_int64 (value, statistics->update_freq.bytes);
break;
case ARG_EVENT_UPDATE_FREQ:
g_value_set_int64 (value, statistics->update_freq.events);
break;
case ARG_UPDATE_ON_EOS:
g_value_set_boolean (value, statistics->update_on_eos);
break;
case ARG_UPDATE:
g_value_set_boolean (value, statistics->update);
break;
case ARG_SILENT:
g_value_set_boolean (value, statistics->silent);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
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