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bin: Enable DURATION query caching

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Elements must now post a DURATION message on the bus if they
change the duration in PAUSED or PLAYING.
This commit is contained in:
Sebastian Dröge 2011-04-18 10:36:41 +02:00
parent caaf5ad528
commit 7c8617ea82
2 changed files with 3 additions and 11 deletions
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3
docs/random/porting-to-0.11.txt
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@ -50,6 +50,9 @@ The 0.11 porting guide
gst_element_class_add_pad_template() takes ownership of the template
Elements that change the duration must post DURATION messages on the
bus when the duration changes in PAUSED or PLAYING.
* GstPad:
gst_pad_get_caps() does not return writable caps anymore and an explicit
gst_caps_make_writable() needs to be performed. This was the functionality

11
gst/gstbin.c
View file

@ -170,11 +170,6 @@
#include "gstutils.h"
#include "gstchildproxy.h"
/* enable for DURATION caching.
* FIXME currently too many elements don't update
* their duration when it changes so we return inaccurate values. */
#undef DURATION_CACHING
/* latency is by default enabled now.
* live-preroll and no-live-preroll in the environment var GST_COMPAT
* to enables or disable it respectively.
@ -3412,13 +3407,11 @@ bin_query_duration_done (GstBin * bin, QueryFold * fold)
GST_DEBUG_OBJECT (bin, "max duration %" G_GINT64_FORMAT, fold->max);
#ifdef DURATION_CACHING
/* and cache now */
GST_OBJECT_LOCK (bin);
bin->messages = g_list_prepend (bin->messages,
gst_message_new_duration (GST_OBJECT_CAST (bin), format, fold->max));
GST_OBJECT_UNLOCK (bin);
#endif
}
static gboolean
@ -3531,7 +3524,6 @@ gst_bin_query (GstElement * element, GstQuery * query)
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_DURATION:
{
#ifdef DURATION_CACHING
GList *cached;
GstFormat qformat;
@ -3562,7 +3554,6 @@ gst_bin_query (GstElement * element, GstQuery * query)
}
}
GST_OBJECT_UNLOCK (bin);
#endif
/* no cached value found, iterate and collect durations */
fold_func = (GstIteratorFoldFunction) bin_query_duration_fold;
fold_init = bin_query_min_max_init;
@ -3628,9 +3619,7 @@ gst_bin_query (GstElement * element, GstQuery * query)
done:
gst_iterator_free (iter);
#ifdef DURATION_CACHING
exit:
#endif
GST_DEBUG_OBJECT (bin, "query %p result %d", query, res);
return res;