mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-27 02:30:35 +00:00
257 lines
7.1 KiB
C
257 lines
7.1 KiB
C
/* vim: set filetype=c: */
|
|
% ClassName
|
|
GstBaseSink
|
|
% TYPE_CLASS_NAME
|
|
GST_TYPE_BASE_SINK
|
|
% pads
|
|
sinkpad-simple
|
|
% pkg-config
|
|
gstreamer-base-1.0
|
|
% includes
|
|
#include <gst/base/gstbasesink.h>
|
|
% prototypes
|
|
static GstCaps *gst_replace_get_caps (GstBaseSink * sink, GstCaps * filter);
|
|
static gboolean gst_replace_set_caps (GstBaseSink * sink, GstCaps * caps);
|
|
static GstCaps *gst_replace_fixate (GstBaseSink * sink, GstCaps * caps);
|
|
static gboolean gst_replace_activate_pull (GstBaseSink * sink, gboolean active);
|
|
static void gst_replace_get_times (GstBaseSink * sink, GstBuffer * buffer,
|
|
GstClockTime * start, GstClockTime * end);
|
|
static gboolean gst_replace_propose_allocation (GstBaseSink * sink,
|
|
GstQuery * query);
|
|
static gboolean gst_replace_start (GstBaseSink * sink);
|
|
static gboolean gst_replace_stop (GstBaseSink * sink);
|
|
static gboolean gst_replace_unlock (GstBaseSink * sink);
|
|
static gboolean gst_replace_unlock_stop (GstBaseSink * sink);
|
|
static gboolean gst_replace_query (GstBaseSink * sink, GstQuery * query);
|
|
static gboolean gst_replace_event (GstBaseSink * sink, GstEvent * event);
|
|
static GstFlowReturn gst_replace_wait_event (GstBaseSink * sink,
|
|
GstEvent * event);
|
|
static GstFlowReturn gst_replace_prepare (GstBaseSink * sink,
|
|
GstBuffer * buffer);
|
|
static GstFlowReturn gst_replace_prepare_list (GstBaseSink * sink,
|
|
GstBufferList * buffer_list);
|
|
static GstFlowReturn gst_replace_preroll (GstBaseSink * sink,
|
|
GstBuffer * buffer);
|
|
static GstFlowReturn gst_replace_render (GstBaseSink * sink,
|
|
GstBuffer * buffer);
|
|
static GstFlowReturn gst_replace_render_list (GstBaseSink * sink,
|
|
GstBufferList * buffer_list);
|
|
% declare-class
|
|
GstBaseSinkClass *base_sink_class = GST_BASE_SINK_CLASS (klass);
|
|
% set-methods
|
|
base_sink_class->get_caps = GST_DEBUG_FUNCPTR (gst_replace_get_caps);
|
|
base_sink_class->set_caps = GST_DEBUG_FUNCPTR (gst_replace_set_caps);
|
|
base_sink_class->fixate = GST_DEBUG_FUNCPTR (gst_replace_fixate);
|
|
base_sink_class->activate_pull = GST_DEBUG_FUNCPTR (gst_replace_activate_pull);
|
|
base_sink_class->get_times = GST_DEBUG_FUNCPTR (gst_replace_get_times);
|
|
base_sink_class->propose_allocation = GST_DEBUG_FUNCPTR (gst_replace_propose_allocation);
|
|
base_sink_class->start = GST_DEBUG_FUNCPTR (gst_replace_start);
|
|
base_sink_class->stop = GST_DEBUG_FUNCPTR (gst_replace_stop);
|
|
base_sink_class->unlock = GST_DEBUG_FUNCPTR (gst_replace_unlock);
|
|
base_sink_class->unlock_stop = GST_DEBUG_FUNCPTR (gst_replace_unlock_stop);
|
|
base_sink_class->query = GST_DEBUG_FUNCPTR (gst_replace_query);
|
|
base_sink_class->event = GST_DEBUG_FUNCPTR (gst_replace_event);
|
|
base_sink_class->wait_event = GST_DEBUG_FUNCPTR (gst_replace_wait_event);
|
|
base_sink_class->prepare = GST_DEBUG_FUNCPTR (gst_replace_prepare);
|
|
base_sink_class->prepare_list = GST_DEBUG_FUNCPTR (gst_replace_prepare_list);
|
|
base_sink_class->preroll = GST_DEBUG_FUNCPTR (gst_replace_preroll);
|
|
base_sink_class->render = GST_DEBUG_FUNCPTR (gst_replace_render);
|
|
base_sink_class->render_list = GST_DEBUG_FUNCPTR (gst_replace_render_list);
|
|
% methods
|
|
static GstCaps *
|
|
gst_replace_get_caps (GstBaseSink * sink, GstCaps * filter)
|
|
{
|
|
GstReplace *replace = GST_REPLACE (sink);
|
|
|
|
GST_DEBUG_OBJECT (replace, "get_caps");
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/* notify subclass of new caps */
|
|
static gboolean
|
|
gst_replace_set_caps (GstBaseSink * sink, GstCaps * caps)
|
|
{
|
|
GstReplace *replace = GST_REPLACE (sink);
|
|
|
|
GST_DEBUG_OBJECT (replace, "set_caps");
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* fixate sink caps during pull-mode negotiation */
|
|
static GstCaps *
|
|
gst_replace_fixate (GstBaseSink * sink, GstCaps * caps)
|
|
{
|
|
GstReplace *replace = GST_REPLACE (sink);
|
|
|
|
GST_DEBUG_OBJECT (replace, "fixate");
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/* start or stop a pulling thread */
|
|
static gboolean
|
|
gst_replace_activate_pull (GstBaseSink * sink, gboolean active)
|
|
{
|
|
GstReplace *replace = GST_REPLACE (sink);
|
|
|
|
GST_DEBUG_OBJECT (replace, "activate_pull");
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* get the start and end times for syncing on this buffer */
|
|
static void
|
|
gst_replace_get_times (GstBaseSink * sink, GstBuffer * buffer,
|
|
GstClockTime * start, GstClockTime * end)
|
|
{
|
|
GstReplace *replace = GST_REPLACE (sink);
|
|
|
|
GST_DEBUG_OBJECT (replace, "get_times");
|
|
|
|
}
|
|
|
|
/* propose allocation parameters for upstream */
|
|
static gboolean
|
|
gst_replace_propose_allocation (GstBaseSink * sink, GstQuery * query)
|
|
{
|
|
GstReplace *replace = GST_REPLACE (sink);
|
|
|
|
GST_DEBUG_OBJECT (replace, "propose_allocation");
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* start and stop processing, ideal for opening/closing the resource */
|
|
static gboolean
|
|
gst_replace_start (GstBaseSink * sink)
|
|
{
|
|
GstReplace *replace = GST_REPLACE (sink);
|
|
|
|
GST_DEBUG_OBJECT (replace, "start");
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_replace_stop (GstBaseSink * sink)
|
|
{
|
|
GstReplace *replace = GST_REPLACE (sink);
|
|
|
|
GST_DEBUG_OBJECT (replace, "stop");
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* unlock any pending access to the resource. subclasses should unlock
|
|
* any function ASAP. */
|
|
static gboolean
|
|
gst_replace_unlock (GstBaseSink * sink)
|
|
{
|
|
GstReplace *replace = GST_REPLACE (sink);
|
|
|
|
GST_DEBUG_OBJECT (replace, "unlock");
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* Clear a previously indicated unlock request not that unlocking is
|
|
* complete. Sub-classes should clear any command queue or indicator they
|
|
* set during unlock */
|
|
static gboolean
|
|
gst_replace_unlock_stop (GstBaseSink * sink)
|
|
{
|
|
GstReplace *replace = GST_REPLACE (sink);
|
|
|
|
GST_DEBUG_OBJECT (replace, "unlock_stop");
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* notify subclass of query */
|
|
static gboolean
|
|
gst_replace_query (GstBaseSink * sink, GstQuery * query)
|
|
{
|
|
GstReplace *replace = GST_REPLACE (sink);
|
|
|
|
GST_DEBUG_OBJECT (replace, "query");
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* notify subclass of event */
|
|
static gboolean
|
|
gst_replace_event (GstBaseSink * sink, GstEvent * event)
|
|
{
|
|
GstReplace *replace = GST_REPLACE (sink);
|
|
|
|
GST_DEBUG_OBJECT (replace, "event");
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* wait for eos or gap, subclasses should chain up to parent first */
|
|
static GstFlowReturn
|
|
gst_replace_wait_event (GstBaseSink * sink, GstEvent * event)
|
|
{
|
|
GstReplace *replace = GST_REPLACE (sink);
|
|
|
|
GST_DEBUG_OBJECT (replace, "wait_event");
|
|
|
|
return GST_FLOW_OK;
|
|
}
|
|
|
|
/* notify subclass of buffer or list before doing sync */
|
|
static GstFlowReturn
|
|
gst_replace_prepare (GstBaseSink * sink, GstBuffer * buffer)
|
|
{
|
|
GstReplace *replace = GST_REPLACE (sink);
|
|
|
|
GST_DEBUG_OBJECT (replace, "prepare");
|
|
|
|
return GST_FLOW_OK;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_replace_prepare_list (GstBaseSink * sink, GstBufferList * buffer_list)
|
|
{
|
|
GstReplace *replace = GST_REPLACE (sink);
|
|
|
|
GST_DEBUG_OBJECT (replace, "prepare_list");
|
|
|
|
return GST_FLOW_OK;
|
|
}
|
|
|
|
/* notify subclass of preroll buffer or real buffer */
|
|
static GstFlowReturn
|
|
gst_replace_preroll (GstBaseSink * sink, GstBuffer * buffer)
|
|
{
|
|
GstReplace *replace = GST_REPLACE (sink);
|
|
|
|
GST_DEBUG_OBJECT (replace, "preroll");
|
|
|
|
return GST_FLOW_OK;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_replace_render (GstBaseSink * sink, GstBuffer * buffer)
|
|
{
|
|
GstReplace *replace = GST_REPLACE (sink);
|
|
|
|
GST_DEBUG_OBJECT (replace, "render");
|
|
|
|
return GST_FLOW_OK;
|
|
}
|
|
|
|
/* Render a BufferList */
|
|
static GstFlowReturn
|
|
gst_replace_render_list (GstBaseSink * sink, GstBufferList * buffer_list)
|
|
{
|
|
GstReplace *replace = GST_REPLACE (sink);
|
|
|
|
GST_DEBUG_OBJECT (replace, "render_list");
|
|
|
|
return GST_FLOW_OK;
|
|
}
|
|
% end
|