blob: 54eeb31f5b9185c325947356a8e6f12a6bfe413c [file] [log] [blame]
/* GStreamer
* Copyright (C) 2016 Centricular Ltd.
* Author: Arun Raghavan <>
* 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
* 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.
#include "config.h"
#include <stdio.h>
/* We need the internal netclock estimation function to (re)run the code on
* captured samples, plus its dependencies for the build to succeed. */
#include "../../libs/gst/net/gstntppacket.c"
#include "../../libs/gst/net/gstnetclientclock.c"
static gchar *input = NULL;
static gboolean debug = FALSE;
static gint rtt_limit = 0;
static GOptionEntry entries[] = {
{"input", 'i', 0, G_OPTION_ARG_FILENAME, &input,
"Clock reading file containing one local and remote time readings, one "
"per line",
{"rtt-limit", 'r', 0, G_OPTION_ARG_INT64, &rtt_limit,
"Round trip time limit on packets (in ms)", "MSEC"},
{"debug", 'd', 0, G_OPTION_ARG_NONE, &debug, "Verbose debug output", NULL},
main (int argc, char *argv[])
GstNetClientInternalClock *clock;
GstBus *bus;
GIOChannel *channel;
GIOStatus status;
GError *error = NULL;
GOptionContext *context;
gchar *line;
int ret = 1;
context = g_option_context_new (NULL);
g_option_context_add_main_entries (context, entries, NULL);
g_option_context_add_group (context, gst_init_get_option_group ());
if (!g_option_context_parse (context, &argc, &argv, &error)) {
g_print ("Failed to parse options: %s\n\n", error->message);
g_error_free (error);
return 1;
if (input) {
if (!(channel = g_io_channel_new_file (input, "r", NULL))) {
g_print ("Could not read input file: %s\n", input);
return 1;
} else {
if (!(channel = g_io_channel_unix_new (0))) {
g_print ("Could not read stdin");
return 1;
bus = gst_bus_new ();
/* FIXME: Find a way to do this without touching the structure internals */
if (rtt_limit)
clock->roundtrip_limit = rtt_limit * GST_MSECOND;
clock->busses = g_list_prepend (clock->busses, bus);
while ((status = g_io_channel_read_line (channel, &line, NULL, NULL,
&error)) == G_IO_STATUS_NORMAL) {
GstClockTime local_1, local_2, remote_1, remote_2;
GstMessage *message;
if (sscanf (line, "%" G_GUINT64_FORMAT " %" G_GUINT64_FORMAT " %"
G_GUINT64_FORMAT " %" G_GUINT64_FORMAT, &local_1, &remote_1,
&remote_2, &local_2) != 4) {
g_print ("Failed to get local/remote time values from: %s\n", line);
goto done;
if (debug)
g_print ("%s", line);
gst_net_client_internal_clock_observe_times (clock, local_1, remote_1,
remote_2, local_2);
g_free (line);
if ((message = gst_bus_pop_filtered (bus, GST_MESSAGE_ELEMENT))) {
const GstStructure *st;
gchar *str;
st = gst_message_get_structure (message);
str = gst_structure_to_string (st);
g_print ("%s\n", str);
g_free (str);
gst_message_unref (message);
if (status == G_IO_CHANNEL_ERROR) {
g_print ("Error reading file: %s\n", error->message);
g_error_free (error);
goto done;
g_io_channel_unref (channel);
g_free (input);
gst_object_unref (bus);
ret = 0;
return ret;