*
* 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., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
*/
/**
* A #GstPipeline is a special #GstBin used as the toplevel container for
* the filter graph. The #GstPipeline will manage the selection and
* distribution of a global #GstClock as well as provide a #GstBus to the
- * application. It will also implement a default behaviour for managing
- * seek events (see gst_element_seek()).
+ * application.
*
* gst_pipeline_new() is used to create a pipeline. when you are done with
* the pipeline, use gst_object_unref() to free its resources including all
* between the clock time and the base time) will count how much time was spent
* in the PLAYING state. This default behaviour can be changed with the
* gst_element_set_start_time() method.
- *
- * When sending a flushing seek event to a GstPipeline (see
- * gst_element_seek()), it will make sure that the pipeline is properly
- * PAUSED and resumed as well as set the new running time to 0 when the
- * seek succeeded.
- *
- * Last reviewed on 2009-05-29 (0.10.24)
*/
#include "gst_private.h"
/* static guint gst_pipeline_signals[LAST_SIGNAL] = { 0 }; */
-#define _do_init(type) \
+#define _do_init \
{ \
GST_DEBUG_CATEGORY_INIT (pipeline_debug, "pipeline", GST_DEBUG_BOLD, \
"debugging info for the 'pipeline' container element"); \
}
-GST_BOILERPLATE_FULL (GstPipeline, gst_pipeline, GstBin, GST_TYPE_BIN,
- _do_init);
-
-static void
-gst_pipeline_base_init (gpointer g_class)
-{
- GstElementClass *gstelement_class = GST_ELEMENT_CLASS (g_class);
-
- gst_element_class_set_details_simple (gstelement_class, "Pipeline object",
- "Generic/Bin",
- "Complete pipeline object",
- "Erik Walthinsen <omega@cse.ogi.edu>, Wim Taymans <wim@fluendo.com>");
-}
+#define gst_pipeline_parent_class parent_class
+G_DEFINE_TYPE_WITH_CODE (GstPipeline, gst_pipeline, GST_TYPE_BIN, _do_init);
static void
gst_pipeline_class_init (GstPipelineClass * klass)
gobject_class->get_property = gst_pipeline_get_property;
/**
- * GstPipeline:delay
+ * GstPipeline:delay:
*
* The expected delay needed for elements to spin up to the
* PLAYING state expressed in nanoseconds.
* see gst_pipeline_set_delay() for more information on this option.
- *
- * Since: 0.10.5
**/
g_object_class_install_property (gobject_class, PROP_DELAY,
g_param_spec_uint64 ("delay", "Delay",
* Whether or not to automatically flush all messages on the
* pipeline's bus when going from READY to NULL state. Please see
* gst_pipeline_set_auto_flush_bus() for more information on this option.
- *
- * Since: 0.10.4
**/
g_object_class_install_property (gobject_class, PROP_AUTO_FLUSH_BUS,
g_param_spec_boolean ("auto-flush-bus", "Auto Flush Bus",
gobject_class->dispose = gst_pipeline_dispose;
+ gst_element_class_set_static_metadata (gstelement_class, "Pipeline object",
+ "Generic/Bin",
+ "Complete pipeline object",
+ "Erik Walthinsen <omega@cse.ogi.edu>, Wim Taymans <wim@fluendo.com>");
+
gstelement_class->change_state =
GST_DEBUG_FUNCPTR (gst_pipeline_change_state);
gstelement_class->provide_clock =
}
static void
-gst_pipeline_init (GstPipeline * pipeline, GstPipelineClass * klass)
+gst_pipeline_init (GstPipeline * pipeline)
{
GstBus *bus;
/* set the start_time to 0, this will cause us to select a new base_time and
* make the running_time start from 0 again. */
static void
-reset_start_time (GstPipeline * pipeline)
+reset_start_time (GstPipeline * pipeline, GstClockTime start_time)
{
GST_OBJECT_LOCK (pipeline);
if (GST_ELEMENT_START_TIME (pipeline) != GST_CLOCK_TIME_NONE) {
GST_DEBUG_OBJECT (pipeline, "reset start_time to 0");
- GST_ELEMENT_START_TIME (pipeline) = 0;
+ GST_ELEMENT_START_TIME (pipeline) = start_time;
pipeline->priv->last_start_time = -1;
} else {
GST_DEBUG_OBJECT (pipeline, "application asked to not reset stream_time");
/**
* gst_pipeline_new:
- * @name: name of new pipeline
+ * @name: (allow-none): name of new pipeline
*
* Create a new pipeline with the given name.
*
- * Returns: (transfer full): newly created GstPipeline
+ * Returns: (transfer floating): newly created GstPipeline
*
* MT safe.
*/
/* running time changed, either with a PAUSED or a flush, we need to check
* if there is a new clock & update the base time */
- if (update_clock || last_start_time != start_time) {
+ /* only do this for top-level, however */
+ if (GST_OBJECT_PARENT (element) == NULL &&
+ (update_clock || last_start_time != start_time)) {
GST_DEBUG_OBJECT (pipeline, "Need to update start_time");
/* when going to PLAYING, select a clock when needed. If we just got
} else {
GST_DEBUG_OBJECT (pipeline,
"Don't need to update clock, using old clock.");
- clock = gst_object_ref (cur_clock);
+ /* only try to ref if cur_clock is not NULL */
+ if (cur_clock)
+ gst_object_ref (cur_clock);
+ clock = cur_clock;
}
if (clock) {
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
{
- reset_start_time (pipeline);
+ /* READY to PAUSED starts running_time from 0 */
+ reset_start_time (pipeline, 0);
break;
}
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
GstPipeline *pipeline = GST_PIPELINE_CAST (bin);
switch (GST_MESSAGE_TYPE (message)) {
- case GST_MESSAGE_ASYNC_START:
+ case GST_MESSAGE_RESET_TIME:
{
- gboolean new_base_time;
+ GstClockTime running_time;
- gst_message_parse_async_start (message, &new_base_time);
+ gst_message_parse_reset_time (message, &running_time);
/* reset our running time if we need to distribute a new base_time to the
* children. */
- if (new_base_time)
- reset_start_time (pipeline);
-
+ reset_start_time (pipeline, running_time);
break;
}
case GST_MESSAGE_CLOCK_LOST:
return gst_element_get_bus (GST_ELEMENT_CAST (pipeline));
}
-/**
- * gst_pipeline_set_new_stream_time:
- * @pipeline: a #GstPipeline
- * @time: the new running time to set
- *
- * Set the new start time of @pipeline to @time. The start time is used to
- * set the base time on the elements (see gst_element_set_base_time())
- * in the PAUSED->PLAYING state transition.
- *
- * Setting @time to #GST_CLOCK_TIME_NONE will disable the pipeline's management
- * of element base time. The application will then be responsible for
- * performing base time distribution. This is sometimes useful if you want to
- * synchronize capture from multiple pipelines, and you can also ensure that the
- * pipelines have the same clock.
- *
- * MT safe.
- *
- * Deprecated: This function has the wrong name and is equivalent to
- * gst_element_set_start_time().
- */
-#ifndef GST_REMOVE_DEPRECATED
-#ifdef GST_DISABLE_DEPRECATED
-void
-gst_pipeline_set_new_stream_time (GstPipeline * pipeline, GstClockTime time);
-#endif
-void
-gst_pipeline_set_new_stream_time (GstPipeline * pipeline, GstClockTime time)
-{
- g_return_if_fail (GST_IS_PIPELINE (pipeline));
-
- gst_element_set_start_time (GST_ELEMENT_CAST (pipeline), time);
-
- if (time == GST_CLOCK_TIME_NONE)
- GST_DEBUG_OBJECT (pipeline, "told not to adjust base_time");
-}
-#endif /* GST_REMOVE_DEPRECATED */
-
-/**
- * gst_pipeline_get_last_stream_time:
- * @pipeline: a #GstPipeline
- *
- * Gets the last running time of @pipeline. If the pipeline is PLAYING,
- * the returned time is the running time used to configure the element's
- * base time in the PAUSED->PLAYING state. If the pipeline is PAUSED, the
- * returned time is the running time when the pipeline was paused.
- *
- * This function returns #GST_CLOCK_TIME_NONE if the pipeline was
- * configured to not handle the management of the element's base time
- * (see gst_pipeline_set_new_stream_time()).
- *
- * MT safe.
- *
- * Returns: a #GstClockTime.
- *
- * Deprecated: This function has the wrong name and is equivalent to
- * gst_element_get_start_time().
- */
-#ifndef GST_REMOVE_DEPRECATED
-#ifdef GST_DISABLE_DEPRECATED
-GstClockTime gst_pipeline_get_last_stream_time (GstPipeline * pipeline);
-#endif
-GstClockTime
-gst_pipeline_get_last_stream_time (GstPipeline * pipeline)
-{
- GstClockTime result;
-
- g_return_val_if_fail (GST_IS_PIPELINE (pipeline), GST_CLOCK_TIME_NONE);
-
- result = gst_element_get_start_time (GST_ELEMENT_CAST (pipeline));
-
- return result;
-}
-#endif /* GST_REMOVE_DEPRECATED */
-
static GstClock *
gst_pipeline_provide_clock_func (GstElement * element)
{
/**
* gst_pipeline_use_clock:
* @pipeline: a #GstPipeline
- * @clock: (transfer none): the clock to use
+ * @clock: (transfer none) (allow-none): the clock to use
*
* Force @pipeline to use the given @clock. The pipeline will
* always use the given clock even if new clock providers are added
* to this pipeline.
*
- * If @clock is NULL all clocking will be disabled which will make
+ * If @clock is %NULL all clocking will be disabled which will make
* the pipeline run as fast as possible.
*
* MT safe.
* Set the clock for @pipeline. The clock will be distributed
* to all the elements managed by the pipeline.
*
- * Returns: TRUE if the clock could be set on the pipeline. FALSE if
+ * Returns: %TRUE if the clock could be set on the pipeline. %FALSE if
* some element did not accept the clock.
*
* MT safe.
* used.
*
* MT safe.
- *
- * Since: 0.10.5
*/
void
gst_pipeline_set_delay (GstPipeline * pipeline, GstClockTime delay)
* Returns: The configured delay.
*
* MT safe.
- *
- * Since: 0.10.5
*/
GstClockTime
gst_pipeline_get_delay (GstPipeline * pipeline)
* automatic flushing is disabled else memory leaks will be introduced.
*
* MT safe.
- *
- * Since: 0.10.4
*/
void
gst_pipeline_set_auto_flush_bus (GstPipeline * pipeline, gboolean auto_flush)
* going from READY to NULL state or not.
*
* MT safe.
- *
- * Since: 0.10.4
*/
gboolean
gst_pipeline_get_auto_flush_bus (GstPipeline * pipeline)
projects / platform / upstream / gstreamer.git / blobdiff