mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-10 11:29:55 +00:00
113 lines
2.9 KiB
C
113 lines
2.9 KiB
C
/* GStreamer
|
|
* Copyright (C) 2011 Andoni Morales Alastruey <ylatuya@gmail.com>
|
|
* Copyright (C) 2012 Smart TV Alliance
|
|
* Author: Louis-Francis Ratté-Boulianne <lfrb@collabora.com>, Collabora Ltd.
|
|
*
|
|
* gstfragment.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 <glib.h>
|
|
#include "gstdownloadrate.h"
|
|
|
|
static void
|
|
_gst_download_rate_check_remove_rates (GstDownloadRate * rate)
|
|
{
|
|
if (rate->max_length == 0)
|
|
return;
|
|
|
|
while (g_queue_get_length (&rate->queue) > rate->max_length) {
|
|
guint bitrate = GPOINTER_TO_UINT (g_queue_pop_head (&rate->queue));
|
|
|
|
rate->total -= bitrate;
|
|
}
|
|
}
|
|
|
|
void
|
|
gst_download_rate_init (GstDownloadRate * rate)
|
|
{
|
|
g_queue_init (&rate->queue);
|
|
g_mutex_init (&rate->mutex);
|
|
rate->total = 0;
|
|
rate->max_length = 0;
|
|
}
|
|
|
|
void
|
|
gst_download_rate_deinit (GstDownloadRate * rate)
|
|
{
|
|
gst_download_rate_clear (rate);
|
|
g_mutex_clear (&rate->mutex);
|
|
}
|
|
|
|
void
|
|
gst_download_rate_set_max_length (GstDownloadRate * rate, gint max_length)
|
|
{
|
|
g_mutex_lock (&rate->mutex);
|
|
rate->max_length = max_length;
|
|
_gst_download_rate_check_remove_rates (rate);
|
|
g_mutex_unlock (&rate->mutex);
|
|
}
|
|
|
|
gint
|
|
gst_download_rate_get_max_length (GstDownloadRate * rate)
|
|
{
|
|
guint ret;
|
|
g_mutex_lock (&rate->mutex);
|
|
ret = rate->max_length;
|
|
g_mutex_unlock (&rate->mutex);
|
|
|
|
return ret;
|
|
}
|
|
|
|
void
|
|
gst_download_rate_clear (GstDownloadRate * rate)
|
|
{
|
|
g_mutex_lock (&rate->mutex);
|
|
g_queue_clear (&rate->queue);
|
|
rate->total = 0;
|
|
g_mutex_unlock (&rate->mutex);
|
|
}
|
|
|
|
void
|
|
gst_download_rate_add_rate (GstDownloadRate * rate, guint bytes, guint64 time)
|
|
{
|
|
guint64 bitrate;
|
|
g_mutex_lock (&rate->mutex);
|
|
|
|
/* convert from bytes / nanoseconds to bits per second */
|
|
bitrate = G_GUINT64_CONSTANT (8000000000) * bytes / time;
|
|
|
|
g_queue_push_tail (&rate->queue, GUINT_TO_POINTER ((guint) bitrate));
|
|
rate->total += bitrate;
|
|
|
|
_gst_download_rate_check_remove_rates (rate);
|
|
g_mutex_unlock (&rate->mutex);
|
|
}
|
|
|
|
guint
|
|
gst_download_rate_get_current_rate (GstDownloadRate * rate)
|
|
{
|
|
guint ret;
|
|
g_mutex_lock (&rate->mutex);
|
|
if (g_queue_get_length (&rate->queue))
|
|
ret = rate->total / g_queue_get_length (&rate->queue);
|
|
else
|
|
ret = G_MAXUINT;
|
|
g_mutex_unlock (&rate->mutex);
|
|
|
|
return ret;
|
|
}
|