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pad-monitor: instrument to monitor buffer/event/query/alloc flows

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Replace pad functions with monitor functions that can do pre/post
checks and call the original functions
This commit is contained in:
Thiago Santos 2013-07-10 18:38:09 -03:00
parent ce0e8ab697
commit 1e9b4311c9
2 changed files with 83 additions and 0 deletions
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77
validate/gst/qa/gst-qa-pad-monitor.c
View file

@ -81,14 +81,91 @@ gst_qa_pad_monitor_new (GstPad * pad)
return monitor;
}
static GstFlowReturn
gst_qa_pad_monitor_chain_func (GstPad * pad, GstBuffer * buffer)
{
GstQaPadMonitor *pad_monitor =
g_object_get_data ((GObject *) pad, "qa-monitor");
GstFlowReturn ret;
ret = pad_monitor->chain_func (pad, buffer);
return ret;
}
static gboolean
gst_qa_pad_monitor_event_func (GstPad * pad, GstEvent * event)
{
GstQaPadMonitor *pad_monitor =
g_object_get_data ((GObject *) pad, "qa-monitor");
GstFlowReturn ret;
ret = pad_monitor->event_func (pad, event);
return ret;
}
static gboolean
gst_qa_pad_monitor_query_func (GstPad * pad, GstQuery * query)
{
GstQaPadMonitor *pad_monitor =
g_object_get_data ((GObject *) pad, "qa-monitor");
GstFlowReturn ret;
ret = pad_monitor->query_func (pad, query);
return ret;
}
static gboolean
gst_qa_pad_buffer_alloc_func (GstPad * pad, guint64 offset, guint size,
GstCaps * caps, GstBuffer ** buffer)
{
GstQaPadMonitor *pad_monitor =
g_object_get_data ((GObject *) pad, "qa-monitor");
GstFlowReturn ret;
ret = pad_monitor->bufferalloc_func (pad, offset, size, caps, buffer);
return ret;
}
static gboolean
gst_qa_pad_get_range_func (GstPad * pad, guint64 offset, guint size,
GstBuffer ** buffer)
{
GstQaPadMonitor *pad_monitor =
g_object_get_data ((GObject *) pad, "qa-monitor");
GstFlowReturn ret;
ret = pad_monitor->getrange_func (pad, offset, size, buffer);
return ret;
}
static gboolean
gst_qa_pad_monitor_do_setup (GstQaMonitor * monitor)
{
GstQaPadMonitor *pad_monitor = GST_QA_PAD_MONITOR_CAST (monitor);
GstPad *pad;
if (!GST_IS_PAD (GST_QA_MONITOR_GET_OBJECT (monitor))) {
GST_WARNING_OBJECT (monitor, "Trying to create pad monitor with other "
"type of object");
return FALSE;
}
pad = GST_QA_PAD_MONITOR_GET_PAD (pad_monitor);
if (g_object_get_data ((GObject *) pad, "qa-monitor")) {
GST_WARNING_OBJECT (pad_monitor, "Pad already has a qa-monitor associated");
return FALSE;
}
g_object_set_data ((GObject *) pad, "qa-monitor", pad_monitor);
if (GST_PAD_DIRECTION (pad) == GST_PAD_SINK) {
pad_monitor->bufferalloc_func = GST_PAD_BUFFERALLOCFUNC (pad);
gst_pad_set_bufferalloc_function (pad, gst_qa_pad_buffer_alloc_func);
pad_monitor->chain_func = GST_PAD_CHAINFUNC (pad);
gst_pad_set_chain_function (pad, gst_qa_pad_monitor_chain_func);
} else {
pad_monitor->getrange_func = GST_PAD_GETRANGEFUNC (pad);
gst_pad_set_getrange_function (pad, gst_qa_pad_get_range_func);
}
pad_monitor->event_func = GST_PAD_EVENTFUNC (pad);
pad_monitor->query_func = GST_PAD_QUERYFUNC (pad);
gst_pad_set_event_function (pad, gst_qa_pad_monitor_event_func);
gst_pad_set_query_function (pad, gst_qa_pad_monitor_query_func);
return TRUE;
}

6
validate/gst/qa/gst-qa-pad-monitor.h
View file

@ -56,6 +56,12 @@ struct _GstQaPadMonitor {
gboolean setup;
GstPad *pad;
GstPadBufferAllocFunction bufferalloc_func;
GstPadChainFunction chain_func;
GstPadEventFunction event_func;
GstPadGetRangeFunction getrange_func;
GstPadQueryFunction query_func;
/*< private >*/
};