gstreamer/tests/check/libs/test_transform.c

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/* GStreamer
*
* some unit tests for GstBaseTransform
*
* Copyright (C) 2008 Wim Taymans <wim.taymans@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/base/gstbasetransform.h>
typedef struct
{
GstPad *srcpad;
GstPad *sinkpad;
GList *events;
GList *buffers;
GstElement *trans;
GstBaseTransformClass *klass;
} TestTransData;
static GstStaticPadTemplate gst_test_trans_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("foo/x-bar")
);
static GstStaticPadTemplate gst_test_trans_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("foo/x-bar")
);
typedef struct _GstTestTrans GstTestTrans;
typedef struct _GstTestTransClass GstTestTransClass;
#define GST_TEST_TRANS(obj) ((GstTestTrans *)(obj))
struct _GstTestTrans
{
GstBaseTransform element;
TestTransData *data;
};
struct _GstTestTransClass
{
GstBaseTransformClass parent_class;
};
static GstFlowReturn (*klass_transform) (GstBaseTransform * trans,
GstBuffer * inbuf, GstBuffer * outbuf) = NULL;
static GstFlowReturn (*klass_transform_ip) (GstBaseTransform * trans,
GstBuffer * buf) = NULL;
static gboolean (*klass_set_caps) (GstBaseTransform * trans, GstCaps * incaps,
GstCaps * outcaps) = NULL;
static GstCaps *(*klass_transform_caps) (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps, GstCaps * filter) = NULL;
static gboolean (*klass_transform_size) (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps, gsize size, GstCaps * othercaps,
gsize * othersize) = NULL;
static gboolean klass_passthrough_on_same_caps = FALSE;
GstFlowReturn (*klass_submit_input_buffer) (GstBaseTransform * trans,
gboolean is_discont, GstBuffer * input) = NULL;
GstFlowReturn (*klass_generate_output) (GstBaseTransform * trans,
GstBuffer ** outbuf) = NULL;
static GstStaticPadTemplate *sink_template = &gst_test_trans_sink_template;
static GstStaticPadTemplate *src_template = &gst_test_trans_src_template;
static void
gst_test_trans_class_init (GstTestTransClass * klass)
{
GstElementClass *element_class;
GstBaseTransformClass *trans_class;
element_class = (GstElementClass *) klass;
trans_class = (GstBaseTransformClass *) klass;
gst_element_class_set_metadata (element_class, "TestTrans",
"Filter/Test", "Test transform", "Wim Taymans <wim.taymans@gmail.com>");
gst_element_class_add_static_pad_template (element_class, sink_template);
gst_element_class_add_static_pad_template (element_class, src_template);
GST_INFO ("setting up %s", g_type_name (((GTypeClass *) klass)->g_type));
trans_class->passthrough_on_same_caps = klass_passthrough_on_same_caps;
if (klass_transform_ip != NULL)
trans_class->transform_ip = klass_transform_ip;
if (klass_transform != NULL)
trans_class->transform = klass_transform;
if (klass_transform_caps != NULL)
trans_class->transform_caps = klass_transform_caps;
if (klass_transform_size != NULL)
trans_class->transform_size = klass_transform_size;
if (klass_set_caps != NULL)
trans_class->set_caps = klass_set_caps;
if (klass_submit_input_buffer != NULL)
trans_class->submit_input_buffer = klass_submit_input_buffer;
if (klass_generate_output)
trans_class->generate_output = klass_generate_output;
}
static void
gst_test_trans_init (GstTestTrans * this)
{
}
static void
gst_test_trans_set_data (GstTestTrans * this, TestTransData * data)
{
this->data = data;
}
static GstFlowReturn
result_sink_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer)
{
TestTransData *data;
data = gst_pad_get_element_private (pad);
data->buffers = g_list_append (data->buffers, buffer);
return GST_FLOW_OK;
}
#if 0
static GstFlowReturn
result_buffer_alloc (GstPad * pad, guint64 offset, guint size, GstCaps * caps,
GstBuffer ** buf)
{
GstFlowReturn res;
TestTransData *data;
data = gst_pad_get_element_private (pad);
*buf = gst_buffer_new_and_alloc (size);
gst_buffer_set_caps (*buf, caps);
res = GST_FLOW_OK;
return res;
}
#endif
static TestTransData *
gst_test_trans_new (void)
{
TestTransData *res;
GstPad *tmp;
GstPadTemplate *templ;
GType type;
/* we register a new sub-class for every test-run, so the class init
* function is called for every test run and can be set up properly
* even with CK_FORK=no */
{
static gint counter = 0;
gchar name[100];
g_snprintf (name, sizeof (name), "GstTestTrans%d", ++counter);
type = g_type_register_static_simple (GST_TYPE_BASE_TRANSFORM, name,
sizeof (GstTestTransClass), (GClassInitFunc) gst_test_trans_class_init,
sizeof (GstTestTrans), (GInstanceInitFunc) gst_test_trans_init, 0);
}
res = g_new0 (TestTransData, 1);
res->trans = g_object_new (type, NULL);
templ = gst_static_pad_template_get (sink_template);
templ->direction = GST_PAD_SRC;
res->srcpad = gst_pad_new_from_template (templ, "src");
gst_object_unref (templ);
templ = gst_static_pad_template_get (src_template);
templ->direction = GST_PAD_SINK;
res->sinkpad = gst_pad_new_from_template (templ, "sink");
gst_object_unref (templ);
res->klass = GST_BASE_TRANSFORM_GET_CLASS (res->trans);
gst_test_trans_set_data (GST_TEST_TRANS (res->trans), res);
gst_pad_set_element_private (res->sinkpad, res);
gst_pad_set_chain_function (res->sinkpad, result_sink_chain);
tmp = gst_element_get_static_pad (res->trans, "sink");
gst_pad_link (res->srcpad, tmp);
gst_object_unref (tmp);
tmp = gst_element_get_static_pad (res->trans, "src");
gst_pad_link (tmp, res->sinkpad);
gst_object_unref (tmp);
gst_pad_set_active (res->sinkpad, TRUE);
gst_element_set_state (res->trans, GST_STATE_PAUSED);
gst_pad_set_active (res->srcpad, TRUE);
gst_pad_push_event (res->srcpad, gst_event_new_stream_start ("test"));
return res;
}
static void
gst_test_trans_free (TestTransData * data)
{
GstPad *tmp;
gst_pad_set_active (data->sinkpad, FALSE);
gst_element_set_state (data->trans, GST_STATE_NULL);
gst_pad_set_active (data->srcpad, FALSE);
tmp = gst_element_get_static_pad (data->trans, "src");
gst_pad_unlink (tmp, data->sinkpad);
gst_object_unref (tmp);
tmp = gst_element_get_static_pad (data->trans, "sink");
gst_pad_link (data->srcpad, tmp);
gst_object_unref (tmp);
gst_object_unref (data->srcpad);
gst_object_unref (data->sinkpad);
gst_object_unref (data->trans);
g_free (data);
}
static GstFlowReturn
gst_test_trans_push (TestTransData * data, GstBuffer * buffer)
{
GstFlowReturn ret;
ret = gst_pad_push (data->srcpad, buffer);
return ret;
}
static GstBuffer *
gst_test_trans_pop (TestTransData * data)
{
GstBuffer *ret;
if (data->buffers) {
ret = data->buffers->data;
data->buffers = g_list_delete_link (data->buffers, data->buffers);
} else {
ret = NULL;
}
return ret;
}
static gboolean
gst_test_trans_setcaps (TestTransData * data, GstCaps * caps)
{
return gst_pad_set_caps (data->srcpad, caps);
}
static gboolean
gst_test_trans_push_segment (TestTransData * data)
{
GstSegment segment;
gst_segment_init (&segment, GST_FORMAT_TIME);
return gst_pad_push_event (data->srcpad, gst_event_new_segment (&segment));
}