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pipewiresrc: should not activate the buffer pool from downstream

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pipewirsrc has own buffer pool and need to clear the buffer pool
information in the query to prevent from being activated by base class.
This commit is contained in:
Elliot Chen 2025-07-14 11:52:22 +09:00
parent 08d4e319cf
commit 3be1904558
1 changed files with 19 additions and 0 deletions
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19
src/gst/gstpipewiresrc.c
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@ -118,6 +118,8 @@ static gboolean gst_pipewire_src_event (GstBaseSrc * src, GstEvent * event);
static gboolean gst_pipewire_src_query (GstBaseSrc * src, GstQuery * query);
static void gst_pipewire_src_get_times (GstBaseSrc * basesrc, GstBuffer * buffer,
GstClockTime * start, GstClockTime * end);
static gboolean gst_pipewire_src_decide_allocation (GstBaseSrc * basesrc,
GstQuery * query);
static void
gst_pipewire_src_set_property (GObject * object, guint prop_id,
@ -502,6 +504,7 @@ gst_pipewire_src_class_init (GstPipeWireSrcClass * klass)
gstbasesrc_class->event = gst_pipewire_src_event;
gstbasesrc_class->query = gst_pipewire_src_query;
gstbasesrc_class->get_times = gst_pipewire_src_get_times;
gstbasesrc_class->decide_allocation = gst_pipewire_src_decide_allocation;
gstpushsrc_class->create = gst_pipewire_src_create;
GST_DEBUG_CATEGORY_INIT (pipewire_src_debug, "pipewiresrc", 0,
@ -1552,6 +1555,22 @@ gst_pipewire_src_get_times (GstBaseSrc * basesrc, GstBuffer * buffer,
GST_TIME_ARGS (*start), *start, GST_TIME_ARGS (*end), *end);
}
static gboolean
gst_pipewire_src_decide_allocation (GstBaseSrc * basesrc, GstQuery * query)
{
guint i;
/* Rewrite decide_allocation function to clear the buffer pool information
* in the query if it exists to prevent from being activated by base class
* because pipewirsrc has own buffer pool.
*/
for (i = 0; i < gst_query_get_n_allocation_pools (query); i++) {
gst_query_remove_nth_allocation_pool (query, i);
}
return TRUE;
}
static GstFlowReturn
gst_pipewire_src_create (GstPushSrc * psrc, GstBuffer ** buffer)
{