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Add option to keep showing last video frame after playback

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Previously Clapper showed last frame, now it defaults to black screen, so add an option for users to choose what they like better
This commit is contained in:
Rafał Dzięgiel
2021-06-16 15:34:36 +02:00
parent bea3b1670d
commit 21ccab1cc2
9 changed files with 68 additions and 10 deletions
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46
lib/gst/clapper/gtk4/gstclapperglsink.c
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@@ -58,6 +58,7 @@ static gboolean gst_clapper_gl_sink_propose_allocation (GstBaseSink * bsink,
static gboolean gst_clapper_gl_sink_query (GstBaseSink * bsink, GstQuery * query);
static gboolean gst_clapper_gl_sink_start (GstBaseSink * bsink);
static gboolean gst_clapper_gl_sink_stop (GstBaseSink * bsink);
static GstFlowReturn gst_clapper_gl_sink_wait_event (GstBaseSink * bsink, GstEvent * event);
static GstStateChangeReturn
gst_clapper_gl_sink_change_state (GstElement * element,
@@ -119,6 +120,7 @@ gst_clapper_gl_sink_class_init (GstClapperGLSinkClass * klass)
gstbasesink_class->query = gst_clapper_gl_sink_query;
gstbasesink_class->start = gst_clapper_gl_sink_start;
gstbasesink_class->stop = gst_clapper_gl_sink_stop;
gstbasesink_class->wait_event = gst_clapper_gl_sink_wait_event;
gstvideosink_class->show_frame = gst_clapper_gl_sink_show_frame;
@@ -143,6 +145,9 @@ gst_clapper_gl_sink_init (GstClapperGLSink * clapper_sink)
clapper_sink->force_aspect_ratio = DEFAULT_FORCE_ASPECT_RATIO;
clapper_sink->par_n = DEFAULT_PAR_N;
clapper_sink->par_d = DEFAULT_PAR_D;
clapper_sink->keep_last_frame = DEFAULT_KEEP_LAST_FRAME;
clapper_sink->had_eos = FALSE;
}
static void
@@ -205,12 +210,12 @@ gst_clapper_gl_sink_get_widget (GstClapperGLSink * clapper_sink)
clapper_sink->widget = (GtkClapperGLWidget *)
GST_CLAPPER_GL_SINK_GET_CLASS (clapper_sink)->create_widget ();
clapper_sink->bind_aspect_ratio =
g_object_bind_property (clapper_sink, "force-aspect-ratio", clapper_sink->widget,
g_object_bind_property (clapper_sink, "force-aspect-ratio", clapper_sink->widget,
"force-aspect-ratio", G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE);
clapper_sink->bind_pixel_aspect_ratio =
g_object_bind_property (clapper_sink, "pixel-aspect-ratio", clapper_sink->widget,
g_object_bind_property (clapper_sink, "pixel-aspect-ratio", clapper_sink->widget,
"pixel-aspect-ratio", G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE);
g_object_bind_property (clapper_sink, "keep-last-frame", clapper_sink->widget,
"keep-last-frame", G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE);
/* Take the floating ref, other wise the destruction of the container will
* make this widget disappear possibly before we are done. */
@@ -256,6 +261,9 @@ gst_clapper_gl_sink_get_property (GObject * object, guint prop_id,
case PROP_PIXEL_ASPECT_RATIO:
gst_value_set_fraction (value, clapper_sink->par_n, clapper_sink->par_d);
break;
case PROP_KEEP_LAST_FRAME:
g_value_set_boolean (value, clapper_sink->keep_last_frame);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@@ -276,6 +284,9 @@ gst_clapper_gl_sink_set_property (GObject * object, guint prop_id,
clapper_sink->par_n = gst_value_get_fraction_numerator (value);
clapper_sink->par_d = gst_value_get_fraction_denominator (value);
break;
case PROP_KEEP_LAST_FRAME:
clapper_sink->keep_last_frame = g_value_get_boolean (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@@ -566,6 +577,7 @@ gst_clapper_gl_sink_change_state (GstElement * element, GstStateChange transitio
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
GST_OBJECT_LOCK (clapper_sink);
clapper_sink->had_eos = FALSE;
if (clapper_sink->widget) {
GTK_CLAPPER_GL_WIDGET_LOCK (clapper_sink->widget);
clapper_sink->widget->ignore_buffers = FALSE;
@@ -591,7 +603,8 @@ gst_clapper_gl_sink_change_state (GstElement * element, GstStateChange transitio
GST_OBJECT_LOCK (clapper_sink);
if (clapper_sink->widget) {
GTK_CLAPPER_GL_WIDGET_LOCK (clapper_sink->widget);
clapper_sink->widget->ignore_buffers = TRUE;
clapper_sink->widget->ignore_buffers =
!clapper_sink->had_eos || !clapper_sink->keep_last_frame;
GTK_CLAPPER_GL_WIDGET_UNLOCK (clapper_sink->widget);
}
GST_OBJECT_UNLOCK (clapper_sink);
@@ -683,6 +696,29 @@ gst_clapper_gl_sink_set_caps (GstBaseSink * bsink, GstCaps * caps)
return TRUE;
}
static GstFlowReturn
gst_clapper_gl_sink_wait_event (GstBaseSink * bsink, GstEvent * event)
{
GstClapperGLSink *clapper_sink = GST_CLAPPER_GL_SINK (bsink);
GstFlowReturn ret;
ret = GST_BASE_SINK_CLASS (parent_class)->wait_event (bsink, event);
switch (event->type) {
case GST_EVENT_EOS:
if (ret == GST_FLOW_OK) {
GST_OBJECT_LOCK (clapper_sink);
clapper_sink->had_eos = TRUE;
GST_OBJECT_UNLOCK (clapper_sink);
}
break;
default:
break;
}
return ret;
}
static GstFlowReturn
gst_clapper_gl_sink_show_frame (GstVideoSink * vsink, GstBuffer * buf)
{