* 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
* 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)
+ * Last reviewed on 2012-03-29 (0.11.3)
*/
#include "gst_private.h"
/* 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");
*
* 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
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_DONE:
+ case GST_MESSAGE_RESET_TIME:
{
- gboolean reset_time;
+ GstClockTime running_time;
- gst_message_parse_async_done (message, &reset_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 (reset_time)
- reset_start_time (pipeline);
-
+ reset_start_time (pipeline, running_time);
break;
}
case GST_MESSAGE_CLOCK_LOST: