gst: keep track of clock time

Invalidate the clock when the stream is destroyed and let the new
clock take the time of previous clock when no timing info is
available.
This commit is contained in:
Wim Taymans 2018-08-13 15:19:20 +02:00
parent 21a79241ed
commit f0a1ab993f
4 changed files with 19 additions and 10 deletions

View file

@ -31,12 +31,13 @@ GST_DEBUG_CATEGORY_STATIC (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)
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);
}
@ -48,14 +49,14 @@ gst_pipewire_clock_get_internal_time (GstClock * clock)
GstClockTime result;
struct pw_time t;
pw_stream_get_time (pclock->stream, &t);
if (pclock->stream == NULL ||
pw_stream_get_time (pclock->stream, &t) < 0 ||
t.rate.denom == 0)
return pclock->last_time;
if (t.rate.denom)
result = gst_util_uint64_scale_int (t.ticks, GST_SECOND * t.rate.num, t.rate.denom);
else
result = GST_CLOCK_TIME_NONE;
GST_DEBUG ("%"PRId64", %d %"PRId64, t.ticks, t.rate.denom, result);
GST_DEBUG ("%"PRId64", %d/%d %"PRId64, t.ticks, t.rate.num, t.rate.denom, result);
return result;
}

View file

@ -46,6 +46,7 @@ struct _GstPipeWireClock {
GstSystemClock parent;
struct pw_stream *stream;
GstClockTime last_time;
};
struct _GstPipeWireClockClass {
@ -54,8 +55,8 @@ struct _GstPipeWireClockClass {
GType gst_pipewire_clock_get_type (void);
GstClock * gst_pipewire_clock_new (struct pw_stream *stream);
GstClock * gst_pipewire_clock_new (struct pw_stream *stream,
GstClockTime last_time);
G_END_DECLS

View file

@ -1028,7 +1028,7 @@ gst_pipewire_src_open (GstPipeWireSrc * pwsrc)
pwsrc);
pwsrc->clock = gst_pipewire_clock_new (pwsrc->stream);
pwsrc->clock = gst_pipewire_clock_new (pwsrc->stream, pwsrc->last_time);
pw_thread_loop_unlock (pwsrc->main_loop);
return TRUE;
@ -1071,7 +1071,13 @@ gst_pipewire_src_close (GstPipeWireSrc * pwsrc)
pw_remote_destroy (pwsrc->remote);
pwsrc->remote = NULL;
pwsrc->last_time = gst_clock_get_time (pwsrc->clock);
gst_element_post_message (GST_ELEMENT (pwsrc),
gst_message_new_clock_lost (GST_OBJECT_CAST (pwsrc), pwsrc->clock));
GST_OBJECT_LOCK (pwsrc);
GST_PIPEWIRE_CLOCK (pwsrc->clock)->stream = NULL;
g_clear_object (&pwsrc->clock);
GST_OBJECT_UNLOCK (pwsrc);
}

View file

@ -82,6 +82,7 @@ struct _GstPipeWireSrc {
GstPipeWirePool *pool;
GQueue queue;
GstClock *clock;
GstClockTime last_time;
};
struct _GstPipeWireSrcClass {