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playsink: add send-event-mode property

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Adds a property for playsink to define how it should handle
events sent in send_event function. The default is the same as
GstBin's, sending events to all internal sinks. There is also
mode-first, that will send to sinks until the one handles the
event successfully.

https://bugzilla.gnome.org/show_bug.cgi?id=673211
This commit is contained in:
Thiago Santos 2012-03-30 18:38:01 -03:00
parent b47350b6e9
commit 84abbe0d52
1 changed files with 89 additions and 20 deletions
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109
gst/playback/gstplaysink.c
View file

@ -52,6 +52,41 @@ GST_DEBUG_CATEGORY_STATIC (gst_play_sink_debug);
#define GST_PLAY_CHAIN(c) ((GstPlayChain *)(c))
/* enum types */
/**
* GstPlaySinkSendEventMode:
* @MODE_DEFAULT: default GstBin's send_event handling
* @MODE_FIRST: send event only to the first sink that return true
*
* Send event handling to use
*/
typedef enum
{
MODE_DEFAULT = 0,
MODE_FIRST = 1
} GstPlaySinkSendEventMode;
#define GST_TYPE_PLAY_SINK_SEND_EVENT_MODE (gst_play_sink_send_event_mode_get_type ())
static GType
gst_play_sink_send_event_mode_get_type (void)
{
static GType gtype = 0;
if (gtype == 0) {
static const GEnumValue values[] = {
{MODE_DEFAULT, "Default GstBin's send_event handling (default)",
"default"},
{MODE_FIRST, "Sends the event to sinks until the first one handles it",
"first"},
{0, NULL, NULL}
};
gtype = g_enum_register_static ("GstPlaySinkSendEventMode", values);
}
return gtype;
}
/* holds the common data fields for the audio and video pipelines. We keep them
* in a structure to more easily have all the info available. */
typedef struct
@ -207,6 +242,7 @@ struct _GstPlaySink
gboolean volume_changed; /* volume/mute changed while no audiochain */
gboolean mute_changed; /* ... has been created yet */
gint64 av_offset;
GstPlaySinkSendEventMode send_event_mode;
/* xoverlay proxy interface */
GstXOverlay *xoverlay_element; /* protected with LOCK */
@ -276,6 +312,7 @@ enum
PROP_VIDEO_SINK,
PROP_AUDIO_SINK,
PROP_TEXT_SINK,
PROP_SEND_EVENT_MODE,
PROP_LAST
};
@ -509,6 +546,20 @@ gst_play_sink_class_init (GstPlaySinkClass * klass)
"the text output element to use (NULL = default textoverlay)",
GST_TYPE_ELEMENT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstPlaySink::send-event-mode:
*
* Sets the handling method used for events received from send_event
* function. The default is %MODE_DEFAULT, that uses %GstBin's default
* handling (push the event to all internal sinks).
*
* Since: 0.10.37
*/
g_object_class_install_property (gobject_klass, PROP_SEND_EVENT_MODE,
g_param_spec_enum ("send-event-mode", "Send event mode",
"How to send events received in send_event function",
GST_TYPE_PLAY_SINK_SEND_EVENT_MODE, MODE_DEFAULT,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_signal_new ("reconfigure", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (GstPlaySinkClass,
@ -577,6 +628,7 @@ gst_play_sink_init (GstPlaySink * playsink)
playsink->font_desc = NULL;
playsink->subtitle_encoding = NULL;
playsink->flags = DEFAULT_FLAGS;
playsink->send_event_mode = MODE_DEFAULT;
playsink->stream_synchronizer =
g_object_new (GST_TYPE_STREAM_SYNCHRONIZER, NULL);
@ -3763,30 +3815,41 @@ static gboolean
gst_play_sink_send_event_to_sink (GstPlaySink * playsink, GstEvent * event)
{
gboolean res = TRUE;
if (playsink->textchain && playsink->textchain->sink) {
gst_event_ref (event);
if ((res = gst_element_send_event (playsink->textchain->chain.bin, event))) {
GST_DEBUG_OBJECT (playsink, "Sent event successfully to text sink");
} else {
GST_DEBUG_OBJECT (playsink, "Event failed when sent to text sink");
if (playsink->send_event_mode == MODE_FIRST) {
if (playsink->textchain && playsink->textchain->sink) {
gst_event_ref (event);
if ((res =
gst_element_send_event (playsink->textchain->chain.bin, event))) {
GST_DEBUG_OBJECT (playsink, "Sent event successfully to text sink");
} else {
GST_DEBUG_OBJECT (playsink, "Event failed when sent to text sink");
}
}
}
if (playsink->videochain) {
gst_event_ref (event);
if ((res = gst_element_send_event (playsink->videochain->chain.bin, event))) {
GST_DEBUG_OBJECT (playsink, "Sent event successfully to video sink");
goto done;
if (playsink->videochain) {
gst_event_ref (event);
if ((res =
gst_element_send_event (playsink->videochain->chain.bin,
event))) {
GST_DEBUG_OBJECT (playsink, "Sent event successfully to video sink");
goto done;
}
GST_DEBUG_OBJECT (playsink, "Event failed when sent to video sink");
}
GST_DEBUG_OBJECT (playsink, "Event failed when sent to video sink");
}
if (playsink->audiochain) {
gst_event_ref (event);
if ((res = gst_element_send_event (playsink->audiochain->chain.bin, event))) {
GST_DEBUG_OBJECT (playsink, "Sent event successfully to audio sink");
goto done;
if (playsink->audiochain) {
gst_event_ref (event);
if ((res =
gst_element_send_event (playsink->audiochain->chain.bin,
event))) {
GST_DEBUG_OBJECT (playsink, "Sent event successfully to audio sink");
goto done;
}
GST_DEBUG_OBJECT (playsink, "Event failed when sent to audio sink");
}
GST_DEBUG_OBJECT (playsink, "Event failed when sent to audio sink");
} else {
return
GST_ELEMENT_CLASS (gst_play_sink_parent_class)->send_event
(GST_ELEMENT_CAST (playsink), event);
}
done:
@ -4103,6 +4166,9 @@ gst_play_sink_set_property (GObject * object, guint prop_id,
gst_play_sink_set_sink (playsink, GST_PLAY_SINK_TYPE_TEXT,
g_value_get_object (value));
break;
case PROP_SEND_EVENT_MODE:
playsink->send_event_mode = g_value_get_enum (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, spec);
break;
@ -4152,6 +4218,9 @@ gst_play_sink_get_property (GObject * object, guint prop_id,
g_value_take_object (value, gst_play_sink_get_sink (playsink,
GST_PLAY_SINK_TYPE_TEXT));
break;
case PROP_SEND_EVENT_MODE:
g_value_set_enum (value, playsink->send_event_mode);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, spec);
break;