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/* GStreamer
* Copyright (C) 2016 Wim Taymans <wim.taymans@gmail.com>
*
* 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 Street, Suite 500,
* Boston, MA 02110-1335, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h>
#include "gstpipewireclock.h"
GST_DEBUG_CATEGORY_STATIC (gst_pipewire_clock_debug_category);
#define GST_CAT_DEFAULT gst_pipewire_clock_debug_category
G_DEFINE_TYPE (GstPipeWireClock, gst_pipewire_clock, GST_TYPE_SYSTEM_CLOCK);
GstClock *
gst_pipewire_clock_new (struct pw_stream *stream, GstClockTime last_time)
{
GstPipeWireClock *clock;
clock = g_object_new (GST_TYPE_PIPEWIRE_CLOCK, NULL);
clock->stream = stream;
clock->last_time = last_time;
return GST_CLOCK_CAST (clock);
}
static GstClockTime
gst_pipewire_clock_get_internal_time (GstClock * clock)
{
GstPipeWireClock *pclock = (GstPipeWireClock *) clock;
GstClockTime result;
struct pw_time t;
struct timespec ts;
if (pclock->stream == NULL ||
pw_stream_get_time (pclock->stream, &t) < 0 ||
t.rate.denom == 0)
return pclock->last_time;
result = gst_util_uint64_scale_int (t.ticks, GST_SECOND * t.rate.num, t.rate.denom);
clock_gettime(CLOCK_MONOTONIC, &ts);
result += SPA_TIMESPEC_TO_TIME(&ts) - t.now;
GST_DEBUG ("%"PRId64", %d/%d %"PRId64" %"PRId64,
t.ticks, t.rate.num, t.rate.denom, t.now, result);
return result;
}
static void
gst_pipewire_clock_finalize (GObject * object)
{
GstPipeWireClock *clock = GST_PIPEWIRE_CLOCK (object);
GST_DEBUG_OBJECT (clock, "finalize");
G_OBJECT_CLASS (gst_pipewire_clock_parent_class)->finalize (object);
}
static void
gst_pipewire_clock_class_init (GstPipeWireClockClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstClockClass *gstclock_class = GST_CLOCK_CLASS (klass);
gobject_class->finalize = gst_pipewire_clock_finalize;
gstclock_class->get_internal_time = gst_pipewire_clock_get_internal_time;
GST_DEBUG_CATEGORY_INIT (gst_pipewire_clock_debug_category, "pipewireclock", 0,
"debug category for pipewireclock object");
}
static void
gst_pipewire_clock_init (GstPipeWireClock * clock)
{
GST_OBJECT_FLAG_SET (clock, GST_CLOCK_FLAG_CAN_SET_MASTER);
}
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