return TRUE;
}
+static void
+gst_play_have_video_size (GstElement *element, gint width,
+ gint height, GstPlay *play)
+{
+ g_return_if_fail (play != NULL);
+ g_return_if_fail (GST_IS_PLAY (play));
+ g_signal_emit (G_OBJECT (play), gst_play_signals[HAVE_VIDEO_SIZE],
+ 0, width, height);
+}
+
+static gboolean
+gst_play_tick_callback (GstPlay *play)
+{
+ GstClock *clock = NULL;
+
+ g_return_val_if_fail (play != NULL, FALSE);
+ g_return_val_if_fail (GST_IS_PLAY (play), FALSE);
+
+ clock = gst_bin_get_clock (GST_BIN (play));
+ play->time_nanos = gst_clock_get_time (clock);
+
+ g_signal_emit (G_OBJECT (play), gst_play_signals[TIME_TICK],
+ 0,play->time_nanos);
+
+ return (GST_STATE (GST_ELEMENT (play)) == GST_STATE_PLAYING);
+}
+
+static void
+gst_play_state_change (GstElement *element, GstElementState old,
+ GstElementState state)
+{
+ GstPlay *play;
+
+ g_return_if_fail (element != NULL);
+ g_return_if_fail (GST_IS_PLAY (element));
+
+ play = GST_PLAY (element);
+
+ if (state == GST_STATE_PLAYING)
+ {
+ g_timeout_add (200, (GSourceFunc) gst_play_tick_callback, play);
+ }
+
+ if (GST_ELEMENT_CLASS (parent_class)->state_change)
+ GST_ELEMENT_CLASS (parent_class)->state_change (element, old, state);
+}
+
/* =========================================== */
/* */
/* Interfaces */
gst_play_class_init (GstPlayClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
-
+ GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
+
parent_class = g_type_class_peek_parent (klass);
gobject_class->dispose = gst_play_dispose;
+ element_class->state_change = gst_play_state_change;
+
gst_play_signals[TIME_TICK] =
g_signal_new ("time_tick", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (GstPlayClass, time_tick), NULL, NULL,
gboolean
gst_play_set_video_sink (GstPlay *play, GstElement *video_sink)
{
- GstElement *video_thread, *old_video_sink, *video_scaler;
+ GstElement *video_thread, *old_video_sink, *video_scaler, *video_sink_element;
g_return_val_if_fail (play != NULL, FALSE);
g_return_val_if_fail (GST_IS_PLAY (play), FALSE);
g_hash_table_replace (play->elements, "video_sink", video_sink);
+ video_sink_element = gst_play_get_sink_element (play, video_sink,
+ GST_PLAY_SINK_TYPE_VIDEO);
+ if (GST_IS_ELEMENT (video_sink_element))
+ {
+ g_hash_table_replace (play->elements, "video_sink_element",
+ video_sink_element);
+ g_signal_connect (G_OBJECT (video_sink_element), "have_video_size",
+ G_CALLBACK (gst_play_have_video_size), play);
+ }
+
+
return TRUE;
}
return TRUE;
}
+/**
+ * gst_play_get_sink_element:
+ * @play: a #GstPlay.
+ * @element: a #GstElement.
+ * @sink_type: a #GstPlaySinkType.
+ *
+ * Searches recursively for a sink #GstElement with
+ * type @sink_type in @element which is supposed to be a #GstBin.
+ *
+ * Returns: the sink #GstElement of @element.
+ */
+GstElement *
+gst_play_get_sink_element (GstPlay *play,
+ GstElement *element, GstPlaySinkType sink_type)
+{
+ GList *elements = NULL;
+ const GList *pads = NULL;
+ gboolean has_src, has_correct_type;
+
+ g_return_val_if_fail (play != NULL, NULL);
+ g_return_val_if_fail (element != NULL, NULL);
+ g_return_val_if_fail (GST_IS_PLAY (play), NULL);
+ g_return_val_if_fail (GST_IS_ELEMENT (element), NULL);
+
+ if (!GST_IS_BIN (element))
+ {
+ /* since its not a bin, we'll presume this
+ * element is a sink element */
+ return element;
+ }
+
+ elements = (GList *) gst_bin_get_list (GST_BIN (element));
+
+ /* traverse all elements looking for a src pad */
+
+ while (elements)
+ {
+
+ element = GST_ELEMENT (elements->data);
+
+ /* Recursivity :) */
+
+ if (GST_IS_BIN (element))
+ {
+ element = gst_play_get_sink_element (play, element, sink_type);
+ if (GST_IS_ELEMENT (element))
+ {
+ return element;
+ }
+ }
+ else
+ {
+
+ pads = gst_element_get_pad_list (element);
+ has_src = FALSE;
+ has_correct_type = FALSE;
+ while (pads)
+ {
+ /* check for src pad */
+ if (GST_PAD_DIRECTION (GST_PAD (pads->data)) == GST_PAD_SRC)
+ {
+ has_src = TRUE;
+ break;
+ }
+ else
+ {
+ /* If not a src pad checking caps */
+ GstCaps *caps;
+ caps = gst_pad_get_caps (GST_PAD (pads->data));
+ while (caps)
+ {
+ gboolean has_video_cap = FALSE, has_audio_cap = FALSE;
+ if (g_ascii_strcasecmp (gst_caps_get_mime (caps),
+ "audio/x-raw-int") == 0)
+ {
+ has_audio_cap = TRUE;
+ }
+ if ((g_ascii_strcasecmp (gst_caps_get_mime (caps),
+ "video/x-raw-yuv") == 0) ||
+ (g_ascii_strcasecmp (gst_caps_get_mime (caps),
+ "video/x-raw-rgb") == 0))
+
+ {
+ has_video_cap = TRUE;
+ }
+
+ switch (sink_type)
+ {
+ case GST_PLAY_SINK_TYPE_AUDIO:
+ if (has_audio_cap)
+ has_correct_type = TRUE;
+ break;;
+ case GST_PLAY_SINK_TYPE_VIDEO:
+ if (has_video_cap)
+ has_correct_type = TRUE;
+ break;;
+ case GST_PLAY_SINK_TYPE_ANY:
+ if ((has_video_cap) || (has_audio_cap))
+ has_correct_type = TRUE;
+ break;;
+ default:
+ has_correct_type = FALSE;
+ }
+ caps = caps->next;
+ }
+ }
+ pads = g_list_next (pads);
+ }
+ if ((!has_src) && (has_correct_type))
+ {
+ return element;
+ }
+ }
+ elements = g_list_next (elements);
+ }
+ /* we didn't find a sink element */
+ return NULL;
+}
+
GstPlay *
gst_play_new (void)
{
#define GST_IS_PLAY_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_PLAY))
#define GST_PLAY_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_PLAY, GstPlayClass))
+typedef enum
+{
+ GST_PLAY_SINK_TYPE_AUDIO,
+ GST_PLAY_SINK_TYPE_VIDEO,
+ GST_PLAY_SINK_TYPE_ANY,
+} GstPlaySinkType;
+
typedef struct _GstPlay GstPlay;
typedef struct _GstPlayClass GstPlayClass;
GType gst_play_get_type (void);
GstPlay * gst_play_new (void);
+GstElement * gst_play_get_sink_element (GstPlay *play,
+ GstElement *element,
+ GstPlaySinkType sink_type);
gboolean gst_play_set_data_src (GstPlay *play,
GstElement *data_src);
gboolean gst_play_set_video_sink (GstPlay *play,
return TRUE;
}
+static void
+gst_play_have_video_size (GstElement *element, gint width,
+ gint height, GstPlay *play)
+{
+ g_return_if_fail (play != NULL);
+ g_return_if_fail (GST_IS_PLAY (play));
+ g_signal_emit (G_OBJECT (play), gst_play_signals[HAVE_VIDEO_SIZE],
+ 0, width, height);
+}
+
+static gboolean
+gst_play_tick_callback (GstPlay *play)
+{
+ GstClock *clock = NULL;
+
+ g_return_val_if_fail (play != NULL, FALSE);
+ g_return_val_if_fail (GST_IS_PLAY (play), FALSE);
+
+ clock = gst_bin_get_clock (GST_BIN (play));
+ play->time_nanos = gst_clock_get_time (clock);
+
+ g_signal_emit (G_OBJECT (play), gst_play_signals[TIME_TICK],
+ 0,play->time_nanos);
+
+ return (GST_STATE (GST_ELEMENT (play)) == GST_STATE_PLAYING);
+}
+
+static void
+gst_play_state_change (GstElement *element, GstElementState old,
+ GstElementState state)
+{
+ GstPlay *play;
+
+ g_return_if_fail (element != NULL);
+ g_return_if_fail (GST_IS_PLAY (element));
+
+ play = GST_PLAY (element);
+
+ if (state == GST_STATE_PLAYING)
+ {
+ g_timeout_add (200, (GSourceFunc) gst_play_tick_callback, play);
+ }
+
+ if (GST_ELEMENT_CLASS (parent_class)->state_change)
+ GST_ELEMENT_CLASS (parent_class)->state_change (element, old, state);
+}
+
/* =========================================== */
/* */
/* Interfaces */
gst_play_class_init (GstPlayClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
-
+ GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
+
parent_class = g_type_class_peek_parent (klass);
gobject_class->dispose = gst_play_dispose;
+ element_class->state_change = gst_play_state_change;
+
gst_play_signals[TIME_TICK] =
g_signal_new ("time_tick", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (GstPlayClass, time_tick), NULL, NULL,
gboolean
gst_play_set_video_sink (GstPlay *play, GstElement *video_sink)
{
- GstElement *video_thread, *old_video_sink, *video_scaler;
+ GstElement *video_thread, *old_video_sink, *video_scaler, *video_sink_element;
g_return_val_if_fail (play != NULL, FALSE);
g_return_val_if_fail (GST_IS_PLAY (play), FALSE);
g_hash_table_replace (play->elements, "video_sink", video_sink);
+ video_sink_element = gst_play_get_sink_element (play, video_sink,
+ GST_PLAY_SINK_TYPE_VIDEO);
+ if (GST_IS_ELEMENT (video_sink_element))
+ {
+ g_hash_table_replace (play->elements, "video_sink_element",
+ video_sink_element);
+ g_signal_connect (G_OBJECT (video_sink_element), "have_video_size",
+ G_CALLBACK (gst_play_have_video_size), play);
+ }
+
+
return TRUE;
}
return TRUE;
}
+/**
+ * gst_play_get_sink_element:
+ * @play: a #GstPlay.
+ * @element: a #GstElement.
+ * @sink_type: a #GstPlaySinkType.
+ *
+ * Searches recursively for a sink #GstElement with
+ * type @sink_type in @element which is supposed to be a #GstBin.
+ *
+ * Returns: the sink #GstElement of @element.
+ */
+GstElement *
+gst_play_get_sink_element (GstPlay *play,
+ GstElement *element, GstPlaySinkType sink_type)
+{
+ GList *elements = NULL;
+ const GList *pads = NULL;
+ gboolean has_src, has_correct_type;
+
+ g_return_val_if_fail (play != NULL, NULL);
+ g_return_val_if_fail (element != NULL, NULL);
+ g_return_val_if_fail (GST_IS_PLAY (play), NULL);
+ g_return_val_if_fail (GST_IS_ELEMENT (element), NULL);
+
+ if (!GST_IS_BIN (element))
+ {
+ /* since its not a bin, we'll presume this
+ * element is a sink element */
+ return element;
+ }
+
+ elements = (GList *) gst_bin_get_list (GST_BIN (element));
+
+ /* traverse all elements looking for a src pad */
+
+ while (elements)
+ {
+
+ element = GST_ELEMENT (elements->data);
+
+ /* Recursivity :) */
+
+ if (GST_IS_BIN (element))
+ {
+ element = gst_play_get_sink_element (play, element, sink_type);
+ if (GST_IS_ELEMENT (element))
+ {
+ return element;
+ }
+ }
+ else
+ {
+
+ pads = gst_element_get_pad_list (element);
+ has_src = FALSE;
+ has_correct_type = FALSE;
+ while (pads)
+ {
+ /* check for src pad */
+ if (GST_PAD_DIRECTION (GST_PAD (pads->data)) == GST_PAD_SRC)
+ {
+ has_src = TRUE;
+ break;
+ }
+ else
+ {
+ /* If not a src pad checking caps */
+ GstCaps *caps;
+ caps = gst_pad_get_caps (GST_PAD (pads->data));
+ while (caps)
+ {
+ gboolean has_video_cap = FALSE, has_audio_cap = FALSE;
+ if (g_ascii_strcasecmp (gst_caps_get_mime (caps),
+ "audio/x-raw-int") == 0)
+ {
+ has_audio_cap = TRUE;
+ }
+ if ((g_ascii_strcasecmp (gst_caps_get_mime (caps),
+ "video/x-raw-yuv") == 0) ||
+ (g_ascii_strcasecmp (gst_caps_get_mime (caps),
+ "video/x-raw-rgb") == 0))
+
+ {
+ has_video_cap = TRUE;
+ }
+
+ switch (sink_type)
+ {
+ case GST_PLAY_SINK_TYPE_AUDIO:
+ if (has_audio_cap)
+ has_correct_type = TRUE;
+ break;;
+ case GST_PLAY_SINK_TYPE_VIDEO:
+ if (has_video_cap)
+ has_correct_type = TRUE;
+ break;;
+ case GST_PLAY_SINK_TYPE_ANY:
+ if ((has_video_cap) || (has_audio_cap))
+ has_correct_type = TRUE;
+ break;;
+ default:
+ has_correct_type = FALSE;
+ }
+ caps = caps->next;
+ }
+ }
+ pads = g_list_next (pads);
+ }
+ if ((!has_src) && (has_correct_type))
+ {
+ return element;
+ }
+ }
+ elements = g_list_next (elements);
+ }
+ /* we didn't find a sink element */
+ return NULL;
+}
+
GstPlay *
gst_play_new (void)
{
#define GST_IS_PLAY_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_PLAY))
#define GST_PLAY_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_PLAY, GstPlayClass))
+typedef enum
+{
+ GST_PLAY_SINK_TYPE_AUDIO,
+ GST_PLAY_SINK_TYPE_VIDEO,
+ GST_PLAY_SINK_TYPE_ANY,
+} GstPlaySinkType;
+
typedef struct _GstPlay GstPlay;
typedef struct _GstPlayClass GstPlayClass;
GType gst_play_get_type (void);
GstPlay * gst_play_new (void);
+GstElement * gst_play_get_sink_element (GstPlay *play,
+ GstElement *element,
+ GstPlaySinkType sink_type);
gboolean gst_play_set_data_src (GstPlay *play,
GstElement *data_src);
gboolean gst_play_set_video_sink (GstPlay *play,
projects / platform / upstream / gst-plugins-base.git / commitdiff