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/* GstHarness - A test-harness for GStreamer testing
*
* Copyright (C) 2012-2015 Pexip <pexip.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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/**
* SECTION:gstharness
* @title: GstHarness
* @short_description: A test-harness for writing GStreamer unit tests
* @see_also: #GstTestClock
*
* #GstHarness is meant to make writing unit test for GStreamer much easier.
* It can be thought of as a way of treating a #GstElement as a black box,
* deterministically feeding it data, and controlling what data it outputs.
*
* The basic structure of #GstHarness is two "floating" #GstPads that connect
* to the harnessed #GstElement src and sink #GstPads like so:
*
* |[
* __________________________
* _____ | _____ _____ | _____
* | | | | | | | | | |
* | src |--+-| sink| Element | src |-+--| sink|
* |_____| | |_____| |_____| | |_____|
* |__________________________|
*
* ]|
*
* With this, you can now simulate any environment the #GstElement might find
* itself in. By specifying the #GstCaps of the harness #GstPads, using
* functions like gst_harness_set_src_caps() or gst_harness_set_sink_caps_str(),
* you can test how the #GstElement interacts with different caps sets.
*
* Your harnessed #GstElement can of course also be a bin, and using
* gst_harness_new_parse() supporting standard gst-launch syntax, you can
* easily test a whole pipeline instead of just one element.
*
* You can then go on to push #GstBuffers and #GstEvents on to the srcpad,
* using functions like gst_harness_push() and gst_harness_push_event(), and
* then pull them out to examine them with gst_harness_pull() and
* gst_harness_pull_event().
*
* ## A simple buffer-in buffer-out example
*
* |[<!-- language="C" -->
* #include <gst/gst.h>
* #include <gst/check/gstharness.h>
* GstHarness *h;
* GstBuffer *in_buf;
* GstBuffer *out_buf;
*
* // attach the harness to the src and sink pad of GstQueue
* h = gst_harness_new ("queue");
*
* // we must specify a caps before pushing buffers
* gst_harness_set_src_caps_str (h, "mycaps");
*
* // create a buffer of size 42
* in_buf = gst_harness_create_buffer (h, 42);
*
* // push the buffer into the queue
* gst_harness_push (h, in_buf);
*
* // pull the buffer from the queue
* out_buf = gst_harness_pull (h);
*
* // validate the buffer in is the same as buffer out
* fail_unless (in_buf == out_buf);
*
* // cleanup
* gst_buffer_unref (out_buf);
* gst_harness_teardown (h);
*
* ]|
*
* Another main feature of the #GstHarness is its integration with the
* #GstTestClock. Operating the #GstTestClock can be very challenging, but
* #GstHarness simplifies some of the most desired actions a lot, like wanting
* to manually advance the clock while at the same time releasing a #GstClockID
* that is waiting, with functions like gst_harness_crank_single_clock_wait().
*
* #GstHarness also supports sub-harnesses, as a way of generating and
* validating data. A sub-harness is another #GstHarness that is managed by
* the "parent" harness, and can either be created by using the standard
* gst_harness_new type functions directly on the (GstHarness *)->src_harness,
* or using the much more convenient gst_harness_add_src() or
* gst_harness_add_sink_parse(). If you have a decoder-element you want to test,
* (like vp8dec) it can be very useful to add a src-harness with both a
* src-element (videotestsrc) and an encoder (vp8enc) to feed the decoder data
* with different configurations, by simply doing:
*
* |[<!-- language="C" -->
* GstHarness * h = gst_harness_new (h, "vp8dec");
* gst_harness_add_src_parse (h, "videotestsrc is-live=1 ! vp8enc", TRUE);
* ]|
*
* and then feeding it data with:
*
* |[<!-- language="C" -->
* gst_harness_push_from_src (h);
* ]|
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
/* we have code with side effects in asserts, so make sure they are active */
#ifdef G_DISABLE_ASSERT
#error "GstHarness must be compiled with G_DISABLE_ASSERT undefined"
#endif
#include "gstharness.h"
#include <stdio.h>
#include <string.h>
#include <math.h>
static void gst_harness_stress_free (GstHarnessThread * t);
#define HARNESS_KEY "harness"
#define HARNESS_REF "harness-ref"
#define HARNESS_LOCK(h) g_mutex_lock (&(h)->priv->priv_mutex)
#define HARNESS_UNLOCK(h) g_mutex_unlock (&(h)->priv->priv_mutex)
static GstStaticPadTemplate hsrctemplate = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS_ANY);
static GstStaticPadTemplate hsinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS_ANY);
struct _GstHarnessPrivate
{
gchar *element_sinkpad_name;
gchar *element_srcpad_name;
GstCaps *src_caps;
GstCaps *sink_caps;
gboolean forwarding;
GstPad *sink_forward_pad;
GstTestClock *testclock;
volatile gint recv_buffers;
volatile gint recv_events;
volatile gint recv_upstream_events;
GAsyncQueue *buffer_queue;
GAsyncQueue *src_event_queue;
GAsyncQueue *sink_event_queue;
GstClockTime latency_min;
GstClockTime latency_max;
gboolean has_clock_wait;
gboolean drop_buffers;
GstClockTime last_push_ts;
GstBufferPool *pool;
GstAllocator *allocator;
GstAllocationParams allocation_params;
GstAllocator *propose_allocator;
GstAllocationParams propose_allocation_params;
gboolean blocking_push_mode;
GCond blocking_push_cond;
GMutex blocking_push_mutex;
GMutex priv_mutex;
GPtrArray *stress;
};
static GstFlowReturn
gst_harness_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer)
{
GstHarness *h = g_object_get_data (G_OBJECT (pad), HARNESS_KEY);
GstHarnessPrivate *priv = h->priv;
(void) parent;
g_assert (h != NULL);
g_mutex_lock (&priv->blocking_push_mutex);
g_atomic_int_inc (&priv->recv_buffers);
if (priv->drop_buffers)
gst_buffer_unref (buffer);
else
g_async_queue_push (priv->buffer_queue, buffer);
if (priv->blocking_push_mode) {
g_cond_wait (&priv->blocking_push_cond, &priv->blocking_push_mutex);
}
g_mutex_unlock (&priv->blocking_push_mutex);
return GST_FLOW_OK;
}
static gboolean
gst_harness_src_event (GstPad * pad, GstObject * parent, GstEvent * event)
{
GstHarness *h = g_object_get_data (G_OBJECT (pad), HARNESS_KEY);
GstHarnessPrivate *priv = h->priv;
(void) parent;
g_assert (h != NULL);
g_atomic_int_inc (&priv->recv_upstream_events);
g_async_queue_push (priv->src_event_queue, event);
return TRUE;
}
static gboolean
gst_harness_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
{
GstHarness *h = g_object_get_data (G_OBJECT (pad), HARNESS_KEY);
GstHarnessPrivate *priv = h->priv;
gboolean ret = TRUE;
gboolean forward;
g_assert (h != NULL);
(void) parent;
g_atomic_int_inc (&priv->recv_events);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_STREAM_START:
case GST_EVENT_CAPS:
case GST_EVENT_SEGMENT:
forward = TRUE;
break;
default:
forward = FALSE;
break;
}
HARNESS_LOCK (h);
if (priv->forwarding && forward && priv->sink_forward_pad) {
GstPad *fwdpad = gst_object_ref (priv->sink_forward_pad);
HARNESS_UNLOCK (h);
ret = gst_pad_push_event (fwdpad, event);
gst_object_unref (fwdpad);
HARNESS_LOCK (h);
} else {
g_async_queue_push (priv->sink_event_queue, event);
}
HARNESS_UNLOCK (h);
return ret;
}
static void
gst_harness_decide_allocation (GstHarness * h, GstCaps * caps)
{
GstHarnessPrivate *priv = h->priv;
GstQuery *query;
GstAllocator *allocator;
GstAllocationParams params;
GstBufferPool *pool = NULL;
guint size, min, max;
query = gst_query_new_allocation (caps, FALSE);
gst_pad_peer_query (h->srcpad, query);
if (gst_query_get_n_allocation_params (query) > 0) {
gst_query_parse_nth_allocation_param (query, 0, &allocator, &params);
} else {
allocator = NULL;
gst_allocation_params_init (&params);
}
if (gst_query_get_n_allocation_pools (query) > 0) {
gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max);
#if 0
/* Most elements create their own pools if pool == NULL. Not sure if we
* want to do that in the harness since we may want to test the pool
* implementation of the elements. Not creating a pool will however ignore
* the returned size. */
if (pool == NULL)
pool = gst_buffer_pool_new ();
#endif
} else {
pool = NULL;
size = min = max = 0;
}
gst_query_unref (query);
if (pool) {
GstStructure *config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_set_params (config, caps, size, min, max);
gst_buffer_pool_config_set_allocator (config, allocator, &params);
gst_buffer_pool_set_config (pool, config);
}
if (pool != priv->pool) {
if (priv->pool != NULL)
gst_buffer_pool_set_active (priv->pool, FALSE);
if (pool)
gst_buffer_pool_set_active (pool, TRUE);
}
priv->allocation_params = params;
if (priv->allocator)
gst_object_unref (priv->allocator);
priv->allocator = allocator;
if (priv->pool)
gst_object_unref (priv->pool);
priv->pool = pool;
}
static void
gst_harness_negotiate (GstHarness * h)
{
GstCaps *caps;
caps = gst_pad_get_current_caps (h->srcpad);
if (caps != NULL) {
gst_harness_decide_allocation (h, caps);
gst_caps_unref (caps);
} else {
GST_FIXME_OBJECT (h, "Cannot negotiate allocation because caps is not set");
}
}
static gboolean
gst_harness_sink_query (GstPad * pad, GstObject * parent, GstQuery * query)
{
GstHarness *h = g_object_get_data (G_OBJECT (pad), HARNESS_KEY);
GstHarnessPrivate *priv = h->priv;
gboolean res = TRUE;
g_assert (h != NULL);
// FIXME: forward all queries?
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_LATENCY:
gst_query_set_latency (query, TRUE, priv->latency_min, priv->latency_max);
break;
case GST_QUERY_CAPS:
{
GstCaps *caps, *filter = NULL;
if (priv->sink_caps) {
caps = gst_caps_ref (priv->sink_caps);
} else {
caps = gst_pad_get_pad_template_caps (pad);
}
gst_query_parse_caps (query, &filter);
if (filter != NULL) {
gst_caps_take (&caps,
gst_caps_intersect_full (filter, caps, GST_CAPS_INTERSECT_FIRST));
}
gst_query_set_caps_result (query, caps);
gst_caps_unref (caps);
}
break;
case GST_QUERY_ALLOCATION:
{
HARNESS_LOCK (h);
if (priv->forwarding && priv->sink_forward_pad != NULL) {
GstPad *peer = gst_pad_get_peer (priv->sink_forward_pad);
g_assert (peer != NULL);
HARNESS_UNLOCK (h);
res = gst_pad_query (peer, query);
gst_object_unref (peer);
HARNESS_LOCK (h);
} else {
GstCaps *caps;
gboolean need_pool;
guint size;
gst_query_parse_allocation (query, &caps, &need_pool);
/* FIXME: Can this be removed? */
size = gst_query_get_n_allocation_params (query);
g_assert_cmpuint (0, ==, size);
gst_query_add_allocation_param (query,
priv->propose_allocator, &priv->propose_allocation_params);
GST_DEBUG_OBJECT (pad, "proposing allocation %" GST_PTR_FORMAT,
priv->propose_allocator);
}
HARNESS_UNLOCK (h);
break;
}
default:
res = gst_pad_query_default (pad, parent, query);
}
return res;
}
static gboolean
gst_harness_src_query (GstPad * pad, GstObject * parent, GstQuery * query)
{
GstHarness *h = g_object_get_data (G_OBJECT (pad), HARNESS_KEY);
GstHarnessPrivate *priv = h->priv;
gboolean res = TRUE;
g_assert (h != NULL);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_LATENCY:
gst_query_set_latency (query, TRUE, priv->latency_min, priv->latency_max);
break;
case GST_QUERY_CAPS:
{
GstCaps *caps, *filter = NULL;
if (priv->src_caps) {
caps = gst_caps_ref (priv->src_caps);
} else {
caps = gst_pad_get_pad_template_caps (pad);
}
gst_query_parse_caps (query, &filter);
if (filter != NULL) {
gst_caps_take (&caps,
gst_caps_intersect_full (filter, caps, GST_CAPS_INTERSECT_FIRST));
}
gst_query_set_caps_result (query, caps);
gst_caps_unref (caps);
}
break;
default:
res = gst_pad_query_default (pad, parent, query);
}
return res;
}
static void
gst_harness_element_ref (GstHarness * h)
{
guint *data;
GST_OBJECT_LOCK (h->element);
data = g_object_get_data (G_OBJECT (h->element), HARNESS_REF);
if (data == NULL) {
data = g_new0 (guint, 1);
*data = 1;
g_object_set_data_full (G_OBJECT (h->element), HARNESS_REF, data, g_free);
} else {
(*data)++;
}
GST_OBJECT_UNLOCK (h->element);
}
static guint
gst_harness_element_unref (GstHarness * h)
{
guint *data;
guint ret;
GST_OBJECT_LOCK (h->element);
data = g_object_get_data (G_OBJECT (h->element), HARNESS_REF);
g_assert (data != NULL);
(*data)--;
ret = *data;
GST_OBJECT_UNLOCK (h->element);
return ret;
}
static void
gst_harness_link_element_srcpad (GstHarness * h,
const gchar * element_srcpad_name)
{
GstHarnessPrivate *priv = h->priv;
GstPad *srcpad = gst_element_get_static_pad (h->element,
element_srcpad_name);
GstPadLinkReturn link;
if (srcpad == NULL)
srcpad = gst_element_get_request_pad (h->element, element_srcpad_name);
g_assert (srcpad);
link = gst_pad_link (srcpad, h->sinkpad);
g_assert_cmpint (link, ==, GST_PAD_LINK_OK);
g_free (priv->element_srcpad_name);
priv->element_srcpad_name = gst_pad_get_name (srcpad);
gst_object_unref (srcpad);
}
static void
gst_harness_link_element_sinkpad (GstHarness * h,
const gchar * element_sinkpad_name)
{
GstHarnessPrivate *priv = h->priv;
GstPad *sinkpad = gst_element_get_static_pad (h->element,
element_sinkpad_name);
GstPadLinkReturn link;
if (sinkpad == NULL)
sinkpad = gst_element_get_request_pad (h->element, element_sinkpad_name);
g_assert (sinkpad);
link = gst_pad_link (h->srcpad, sinkpad);
g_assert_cmpint (link, ==, GST_PAD_LINK_OK);
g_free (priv->element_sinkpad_name);
priv->element_sinkpad_name = gst_pad_get_name (sinkpad);
gst_object_unref (sinkpad);
}
static void
gst_harness_setup_src_pad (GstHarness * h,
GstStaticPadTemplate * src_tmpl, const gchar * element_sinkpad_name)
{
GstHarnessPrivate *priv = h->priv;
g_assert (src_tmpl);
g_assert (h->srcpad == NULL);
priv->src_event_queue =
g_async_queue_new_full ((GDestroyNotify) gst_event_unref);
/* sending pad */
h->srcpad = gst_pad_new_from_static_template (src_tmpl, "src");
g_assert (h->srcpad);
g_object_set_data (G_OBJECT (h->srcpad), HARNESS_KEY, h);
gst_pad_set_query_function (h->srcpad, gst_harness_src_query);
gst_pad_set_event_function (h->srcpad, gst_harness_src_event);
gst_pad_set_active (h->srcpad, TRUE);
if (element_sinkpad_name)
gst_harness_link_element_sinkpad (h, element_sinkpad_name);
}
static void
gst_harness_setup_sink_pad (GstHarness * h,
GstStaticPadTemplate * sink_tmpl, const gchar * element_srcpad_name)
{
GstHarnessPrivate *priv = h->priv;
g_assert (sink_tmpl);
g_assert (h->sinkpad == NULL);
priv->buffer_queue = g_async_queue_new_full (
(GDestroyNotify) gst_buffer_unref);
priv->sink_event_queue = g_async_queue_new_full (
(GDestroyNotify) gst_event_unref);
/* receiving pad */
h->sinkpad = gst_pad_new_from_static_template (sink_tmpl, "sink");
g_assert (h->sinkpad);
g_object_set_data (G_OBJECT (h->sinkpad), HARNESS_KEY, h);
gst_pad_set_chain_function (h->sinkpad, gst_harness_chain);
gst_pad_set_query_function (h->sinkpad, gst_harness_sink_query);
gst_pad_set_event_function (h->sinkpad, gst_harness_sink_event);
gst_pad_set_active (h->sinkpad, TRUE);
if (element_srcpad_name)
gst_harness_link_element_srcpad (h, element_srcpad_name);
}
static void
check_element_type (GstElement * element, gboolean * has_sinkpad,
gboolean * has_srcpad)
{
GstElementClass *element_class = GST_ELEMENT_GET_CLASS (element);
const GList *tmpl_list;
*has_srcpad = element->numsrcpads > 0;
*has_sinkpad = element->numsinkpads > 0;
tmpl_list = gst_element_class_get_pad_template_list (element_class);
while (tmpl_list) {
GstPadTemplate *pad_tmpl = (GstPadTemplate *) tmpl_list->data;
tmpl_list = g_list_next (tmpl_list);
if (GST_PAD_TEMPLATE_DIRECTION (pad_tmpl) == GST_PAD_SRC)
*has_srcpad |= TRUE;
if (GST_PAD_TEMPLATE_DIRECTION (pad_tmpl) == GST_PAD_SINK)
*has_sinkpad |= TRUE;
}
}
static void
turn_async_and_sync_off (GstElement * element)
{
GObjectClass *class = G_OBJECT_GET_CLASS (element);
if (g_object_class_find_property (class, "async"))
g_object_set (element, "async", FALSE, NULL);
if (g_object_class_find_property (class, "sync"))
g_object_set (element, "sync", FALSE, NULL);
}
static gboolean
gst_pad_is_request_pad (GstPad * pad)
{
GstPadTemplate *temp;
gboolean is_request;
if (pad == NULL)
return FALSE;
temp = gst_pad_get_pad_template (pad);
if (temp == NULL)
return FALSE;
is_request = GST_PAD_TEMPLATE_PRESENCE (temp) == GST_PAD_REQUEST;
gst_object_unref (temp);
return is_request;
}
/**
* gst_harness_new_empty: (skip)
*
* Creates a new empty harness. Use gst_harness_add_element_full() to add
* an #GstElement to it.
*
* MT safe.
*
* Returns: (transfer full): a #GstHarness, or %NULL if the harness could
* not be created
*
* Since: 1.8
*/
GstHarness *
gst_harness_new_empty (void)
{
GstHarness *h;
GstHarnessPrivate *priv;
h = g_new0 (GstHarness, 1);
g_assert (h != NULL);
h->priv = g_new0 (GstHarnessPrivate, 1);
priv = h->priv;
GST_DEBUG_OBJECT (h, "about to create new harness %p", h);
priv->last_push_ts = GST_CLOCK_TIME_NONE;
priv->latency_min = 0;
priv->latency_max = GST_CLOCK_TIME_NONE;
priv->drop_buffers = FALSE;
priv->testclock = GST_TEST_CLOCK_CAST (gst_test_clock_new ());
priv->propose_allocator = NULL;
gst_allocation_params_init (&priv->propose_allocation_params);
g_mutex_init (&priv->blocking_push_mutex);
g_cond_init (&priv->blocking_push_cond);
g_mutex_init (&priv->priv_mutex);
priv->stress = g_ptr_array_new_with_free_func (
(GDestroyNotify) gst_harness_stress_free);
/* we have forwarding on as a default */
gst_harness_set_forwarding (h, TRUE);
return h;
}
/**
* gst_harness_add_element_full: (skip)
* @h: a #GstHarness
* @element: a #GstElement to add to the harness (transfer none)
* @hsrc: (allow-none): a #GstStaticPadTemplate describing the harness srcpad.
* %NULL will not create a harness srcpad.
* @element_sinkpad_name: (allow-none): a #gchar with the name of the element
* sinkpad that is then linked to the harness srcpad. Can be a static or request
* or a sometimes pad that has been added. %NULL will not get/request a sinkpad
* from the element. (Like if the element is a src.)
* @hsink: (allow-none): a #GstStaticPadTemplate describing the harness sinkpad.
* %NULL will not create a harness sinkpad.
* @element_srcpad_name: (allow-none): a #gchar with the name of the element
* srcpad that is then linked to the harness sinkpad, similar to the
* @element_sinkpad_name.
*
* Adds a #GstElement to an empty #GstHarness
*
* MT safe.
*
* Since: 1.6
*/
void
gst_harness_add_element_full (GstHarness * h, GstElement * element,
GstStaticPadTemplate * hsrc, const gchar * element_sinkpad_name,
GstStaticPadTemplate * hsink, const gchar * element_srcpad_name)
{
GstClock *element_clock;
gboolean has_sinkpad, has_srcpad;
g_return_if_fail (element != NULL);
g_return_if_fail (h->element == NULL);
element_clock = GST_ELEMENT_CLOCK (element);
h->element = gst_object_ref (element);
check_element_type (element, &has_sinkpad, &has_srcpad);
/* setup the loose srcpad linked to the element sinkpad */
if (has_sinkpad)
gst_harness_setup_src_pad (h, hsrc, element_sinkpad_name);
/* setup the loose sinkpad linked to the element srcpad */
if (has_srcpad)
gst_harness_setup_sink_pad (h, hsink, element_srcpad_name);
/* as a harness sink, we should not need sync and async */
if (has_sinkpad && !has_srcpad)
turn_async_and_sync_off (h->element);
if (h->srcpad != NULL) {
gboolean handled;
gchar *stream_id = g_strdup_printf ("%s-%p",
GST_OBJECT_NAME (h->element), h);
handled = gst_pad_push_event (h->srcpad,
gst_event_new_stream_start (stream_id));
g_assert (handled);
g_free (stream_id);
}
/* if the element already has a testclock attached,
we replace our own with it, if no clock we attach the testclock */
if (element_clock) {
if (GST_IS_TEST_CLOCK (element_clock)) {
gst_object_replace ((GstObject **) & h->priv->testclock,
(GstObject *) GST_ELEMENT_CLOCK (element));
}
} else {
gst_harness_use_testclock (h);
}
/* don't start sources, they start producing data! */
if (has_sinkpad)
gst_harness_play (h);
gst_harness_element_ref (h);
GST_DEBUG_OBJECT (h, "added element to harness %p "
"with element_srcpad_name (%p, %s, %s) and element_sinkpad_name (%p, %s, %s)",
h, h->srcpad, GST_DEBUG_PAD_NAME (h->srcpad),
h->sinkpad, GST_DEBUG_PAD_NAME (h->sinkpad));
}
/**
* gst_harness_new_full: (skip)
* @element: a #GstElement to attach the harness to (transfer none)
* @hsrc: (allow-none): a #GstStaticPadTemplate describing the harness srcpad.
* %NULL will not create a harness srcpad.
* @element_sinkpad_name: (allow-none): a #gchar with the name of the element
* sinkpad that is then linked to the harness srcpad. Can be a static or request
* or a sometimes pad that has been added. %NULL will not get/request a sinkpad
* from the element. (Like if the element is a src.)
* @hsink: (allow-none): a #GstStaticPadTemplate describing the harness sinkpad.
* %NULL will not create a harness sinkpad.
* @element_srcpad_name: (allow-none): a #gchar with the name of the element
* srcpad that is then linked to the harness sinkpad, similar to the
* @element_sinkpad_name.
*
* Creates a new harness.
*
* MT safe.
*
* Returns: (transfer full): a #GstHarness, or %NULL if the harness could
* not be created
*
* Since: 1.6
*/
GstHarness *
gst_harness_new_full (GstElement * element,
GstStaticPadTemplate * hsrc, const gchar * element_sinkpad_name,
GstStaticPadTemplate * hsink, const gchar * element_srcpad_name)
{
GstHarness *h;
h = gst_harness_new_empty ();
gst_harness_add_element_full (h, element,
hsrc, element_sinkpad_name, hsink, element_srcpad_name);
return h;
}
/**
* gst_harness_new_with_element: (skip)
* @element: a #GstElement to attach the harness to (transfer none)
* @element_sinkpad_name: (allow-none): a #gchar with the name of the element
* sinkpad that is then linked to the harness srcpad. %NULL does not attach a
* sinkpad
* @element_srcpad_name: (allow-none): a #gchar with the name of the element
* srcpad that is then linked to the harness sinkpad. %NULL does not attach a
* srcpad
*
* Creates a new harness. Works in the same way as gst_harness_new_full(), only
* that generic padtemplates are used for the harness src and sinkpads, which
* will be sufficient in most usecases.
*
* MT safe.
*
* Returns: (transfer full): a #GstHarness, or %NULL if the harness could
* not be created
*
* Since: 1.6
*/
GstHarness *
gst_harness_new_with_element (GstElement * element,
const gchar * element_sinkpad_name, const gchar * element_srcpad_name)
{
return gst_harness_new_full (element,
&hsrctemplate, element_sinkpad_name, &hsinktemplate, element_srcpad_name);
}
/**
* gst_harness_new_with_padnames: (skip)
* @element_name: a #gchar describing the #GstElement name
* @element_sinkpad_name: (allow-none): a #gchar with the name of the element
* sinkpad that is then linked to the harness srcpad. %NULL does not attach a
* sinkpad
* @element_srcpad_name: (allow-none): a #gchar with the name of the element
* srcpad that is then linked to the harness sinkpad. %NULL does not attach a
* srcpad
*
* Creates a new harness. Works like gst_harness_new_with_element(),
* except you specify the factoryname of the #GstElement
*
* MT safe.
*
* Returns: (transfer full): a #GstHarness, or %NULL if the harness could
* not be created
*
* Since: 1.6
*/
GstHarness *
gst_harness_new_with_padnames (const gchar * element_name,
const gchar * element_sinkpad_name, const gchar * element_srcpad_name)
{
GstHarness *h;
GstElement *element = gst_element_factory_make (element_name, NULL);
g_assert (element != NULL);
h = gst_harness_new_with_element (element, element_sinkpad_name,
element_srcpad_name);
gst_object_unref (element);
return h;
}
/**
* gst_harness_new_with_templates: (skip)
* @element_name: a #gchar describing the #GstElement name
* @hsrc: (allow-none): a #GstStaticPadTemplate describing the harness srcpad.
* %NULL will not create a harness srcpad.
* @hsink: (allow-none): a #GstStaticPadTemplate describing the harness sinkpad.
* %NULL will not create a harness sinkpad.
*
* Creates a new harness, like gst_harness_new_full(), except it
* assumes the #GstElement sinkpad is named "sink" and srcpad is named "src"
*
* MT safe.
*
* Returns: (transfer full): a #GstHarness, or %NULL if the harness could
* not be created
*
* Since: 1.6
*/
GstHarness *
gst_harness_new_with_templates (const gchar * element_name,
GstStaticPadTemplate * hsrc, GstStaticPadTemplate * hsink)
{
GstHarness *h;
GstElement *element = gst_element_factory_make (element_name, NULL);
g_assert (element != NULL);
h = gst_harness_new_full (element, hsrc, "sink", hsink, "src");
gst_object_unref (element);
return h;
}
/**
* gst_harness_new: (skip)
* @element_name: a #gchar describing the #GstElement name
*
* Creates a new harness. Works like gst_harness_new_with_padnames(), except it
* assumes the #GstElement sinkpad is named "sink" and srcpad is named "src"
*
* MT safe.
*
* Returns: (transfer full): a #GstHarness, or %NULL if the harness could
* not be created
*
* Since: 1.6
*/
GstHarness *
gst_harness_new (const gchar * element_name)
{
return gst_harness_new_with_padnames (element_name, "sink", "src");
}
/**
* gst_harness_add_parse: (skip)
* @h: a #GstHarness
* @launchline: a #gchar describing a gst-launch type line
*
* Parses the @launchline and puts that in a #GstBin,
* and then attches the supplied #GstHarness to the bin.
*
* MT safe.
*
* Since: 1.6
*/
void
gst_harness_add_parse (GstHarness * h, const gchar * launchline)
{
GstBin *bin;
gchar *desc;
GstPad *pad;
GstIterator *iter;
gboolean done = FALSE;
GError *error = NULL;
g_return_if_fail (launchline != NULL);
desc = g_strdup_printf ("bin.( %s )", launchline);
bin =
(GstBin *) gst_parse_launch_full (desc, NULL, GST_PARSE_FLAG_FATAL_ERRORS,
&error);
if (G_UNLIKELY (error != NULL)) {
g_error ("Unable to create pipeline '%s': %s", desc, error->message);
}
g_free (desc);
/* find pads and ghost them if necessary */
if ((pad = gst_bin_find_unlinked_pad (bin, GST_PAD_SRC)) != NULL) {
gst_element_add_pad (GST_ELEMENT (bin), gst_ghost_pad_new ("src", pad));
gst_object_unref (pad);
}
if ((pad = gst_bin_find_unlinked_pad (bin, GST_PAD_SINK)) != NULL) {
gst_element_add_pad (GST_ELEMENT (bin), gst_ghost_pad_new ("sink", pad));
gst_object_unref (pad);
}
iter = gst_bin_iterate_sinks (bin);
while (!done) {
GValue item = { 0, };
switch (gst_iterator_next (iter, &item)) {
case GST_ITERATOR_OK:
turn_async_and_sync_off (GST_ELEMENT (g_value_get_object (&item)));
g_value_reset (&item);
break;
case GST_ITERATOR_DONE:
done = TRUE;
break;
case GST_ITERATOR_RESYNC:
gst_iterator_resync (iter);
break;
case GST_ITERATOR_ERROR:
gst_object_unref (bin);
gst_iterator_free (iter);
g_return_if_reached ();
break;
}
}
gst_iterator_free (iter);
gst_harness_add_element_full (h, GST_ELEMENT_CAST (bin),
&hsrctemplate, "sink", &hsinktemplate, "src");
gst_object_unref (bin);
}
/**
* gst_harness_new_parse: (skip)
* @launchline: a #gchar describing a gst-launch type line
*
* Creates a new harness, parsing the @launchline and putting that in a #GstBin,
* and then attches the harness to the bin.
*
* MT safe.
*
* Returns: (transfer full): a #GstHarness, or %NULL if the harness could
* not be created
*
* Since: 1.6
*/
GstHarness *
gst_harness_new_parse (const gchar * launchline)
{
GstHarness *h;
h = gst_harness_new_empty ();
gst_harness_add_parse (h, launchline);
return h;
}
/**
* gst_harness_teardown:
* @h: a #GstHarness
*
* Tears down a @GstHarness, freeing all resources allocated using it.
*
* MT safe.
*
* Since: 1.6
*/
void
gst_harness_teardown (GstHarness * h)
{
GstHarnessPrivate *priv = h->priv;
if (priv->blocking_push_mode) {
g_mutex_lock (&priv->blocking_push_mutex);
priv->blocking_push_mode = FALSE;
g_cond_signal (&priv->blocking_push_cond);
g_mutex_unlock (&priv->blocking_push_mutex);
}
if (h->src_harness) {
gst_harness_teardown (h->src_harness);
}
gst_object_replace ((GstObject **) & priv->sink_forward_pad, NULL);
if (h->sink_harness) {
gst_harness_teardown (h->sink_harness);
}
if (priv->src_caps)
gst_caps_unref (priv->src_caps);
if (priv->sink_caps)
gst_caps_unref (priv->sink_caps);
if (h->srcpad) {
if (gst_pad_is_request_pad (GST_PAD_PEER (h->srcpad)))
gst_element_release_request_pad (h->element, GST_PAD_PEER (h->srcpad));
g_free (priv->element_sinkpad_name);
gst_pad_set_active (h->srcpad, FALSE);
gst_object_unref (h->srcpad);
g_async_queue_unref (priv->src_event_queue);
}
if (h->sinkpad) {
if (gst_pad_is_request_pad (GST_PAD_PEER (h->sinkpad)))
gst_element_release_request_pad (h->element, GST_PAD_PEER (h->sinkpad));
g_free (priv->element_srcpad_name);
gst_pad_set_active (h->sinkpad, FALSE);
gst_object_unref (h->sinkpad);
g_async_queue_unref (priv->buffer_queue);
g_async_queue_unref (priv->sink_event_queue);
}
gst_object_replace ((GstObject **) & priv->propose_allocator, NULL);
gst_object_replace ((GstObject **) & priv->allocator, NULL);
gst_object_replace ((GstObject **) & priv->pool, NULL);
/* if we hold the last ref, set to NULL */
if (gst_harness_element_unref (h) == 0) {
gboolean state_change;
GstState state, pending;
state_change = gst_element_set_state (h->element, GST_STATE_NULL);
g_assert (state_change == GST_STATE_CHANGE_SUCCESS);
state_change = gst_element_get_state (h->element, &state, &pending, 0);
g_assert (state_change == GST_STATE_CHANGE_SUCCESS);
g_assert (state == GST_STATE_NULL);
}
g_cond_clear (&priv->blocking_push_cond);
g_mutex_clear (&priv->blocking_push_mutex);
g_mutex_clear (&priv->priv_mutex);
g_ptr_array_unref (priv->stress);
gst_object_unref (h->element);
gst_object_replace ((GstObject **) & priv->testclock, NULL);
g_free (h->priv);
g_free (h);
}
/**
* gst_harness_add_element_src_pad:
* @h: a #GstHarness
* @srcpad: a #GstPad to link to the harness sinkpad
*
* Links the specifed #GstPad the @GstHarness sinkpad. This can be useful if
* perhaps the srcpad did not exist at the time of creating the harness,
* like a demuxer that provides a sometimes-pad after receiving data.
*
* MT safe.
*
* Since: 1.6
*/
void
gst_harness_add_element_src_pad (GstHarness * h, GstPad * srcpad)
{
GstHarnessPrivate *priv = h->priv;
GstPadLinkReturn link;
if (h->sinkpad == NULL)
gst_harness_setup_sink_pad (h, &hsinktemplate, NULL);
link = gst_pad_link (srcpad, h->sinkpad);
g_assert_cmpint (link, ==, GST_PAD_LINK_OK);
g_free (priv->element_srcpad_name);
priv->element_srcpad_name = gst_pad_get_name (srcpad);
}
/**
* gst_harness_add_element_sink_pad:
* @h: a #GstHarness
* @sinkpad: a #GstPad to link to the harness srcpad
*
* Links the specifed #GstPad the @GstHarness srcpad.
*
* MT safe.
*
* Since: 1.6
*/
void
gst_harness_add_element_sink_pad (GstHarness * h, GstPad * sinkpad)
{
GstHarnessPrivate *priv = h->priv;
GstPadLinkReturn link;
if (h->srcpad == NULL)
gst_harness_setup_src_pad (h, &hsrctemplate, NULL);
link = gst_pad_link (h->srcpad, sinkpad);
g_assert_cmpint (link, ==, GST_PAD_LINK_OK);
g_free (priv->element_sinkpad_name);
priv->element_sinkpad_name = gst_pad_get_name (sinkpad);
}
/**
* gst_harness_set_src_caps:
* @h: a #GstHarness
* @caps: (transfer full): a #GstCaps to set on the harness srcpad
*
* Sets the @GstHarness srcpad caps. This must be done before any buffers
* can legally be pushed from the harness to the element.
*
* MT safe.
*
* Since: 1.6
*/
void
gst_harness_set_src_caps (GstHarness * h, GstCaps * caps)
{
GstHarnessPrivate *priv = h->priv;
GstSegment segment;
gboolean handled;
handled = gst_pad_push_event (h->srcpad, gst_event_new_caps (caps));
g_assert (handled);
gst_caps_take (&priv->src_caps, caps);
gst_segment_init (&segment, GST_FORMAT_TIME);
handled = gst_pad_push_event (h->srcpad, gst_event_new_segment (&segment));
}
/**
* gst_harness_set_sink_caps:
* @h: a #GstHarness
* @caps: (transfer full): a #GstCaps to set on the harness sinkpad
*
* Sets the @GstHarness sinkpad caps.
*
* MT safe.
*
* Since: 1.6
*/
void
gst_harness_set_sink_caps (GstHarness * h, GstCaps * caps)
{
GstHarnessPrivate *priv = h->priv;
gst_caps_take (&priv->sink_caps, caps);
gst_pad_push_event (h->sinkpad, gst_event_new_reconfigure ());
}
/**
* gst_harness_set_caps:
* @h: a #GstHarness
* @in: (transfer full): a #GstCaps to set on the harness srcpad
* @out: (transfer full): a #GstCaps to set on the harness sinkpad
*
* Sets the @GstHarness srcpad and sinkpad caps.
*
* MT safe.
*
* Since: 1.6
*/
void
gst_harness_set_caps (GstHarness * h, GstCaps * in, GstCaps * out)
{
gst_harness_set_sink_caps (h, out);
gst_harness_set_src_caps (h, in);
}
/**
* gst_harness_set_src_caps_str:
* @h: a #GstHarness
* @str: a @gchar describing a #GstCaps to set on the harness srcpad
*
* Sets the @GstHarness srcpad caps using a string. This must be done before
* any buffers can legally be pushed from the harness to the element.
*
* MT safe.
*
* Since: 1.6
*/
void
gst_harness_set_src_caps_str (GstHarness * h, const gchar * str)
{
gst_harness_set_src_caps (h, gst_caps_from_string (str));
}
/**
* gst_harness_set_sink_caps_str:
* @h: a #GstHarness
* @str: a @gchar describing a #GstCaps to set on the harness sinkpad
*
* Sets the @GstHarness sinkpad caps using a string.
*
* MT safe.
*
* Since: 1.6
*/
void
gst_harness_set_sink_caps_str (GstHarness * h, const gchar * str)
{
gst_harness_set_sink_caps (h, gst_caps_from_string (str));
}
/**
* gst_harness_set_caps_str:
* @h: a #GstHarness
* @in: a @gchar describing a #GstCaps to set on the harness srcpad
* @out: a @gchar describing a #GstCaps to set on the harness sinkpad
*
* Sets the @GstHarness srcpad and sinkpad caps using strings.
*
* MT safe.
*
* Since: 1.6
*/
void
gst_harness_set_caps_str (GstHarness * h, const gchar * in, const gchar * out)
{
gst_harness_set_sink_caps_str (h, out);
gst_harness_set_src_caps_str (h, in);
}
/**
* gst_harness_use_systemclock:
* @h: a #GstHarness
*
* Sets the system #GstClock on the @GstHarness #GstElement
*
* MT safe.
*
* Since: 1.6
*/
void
gst_harness_use_systemclock (GstHarness * h)
{
GstClock *clock = gst_system_clock_obtain ();
g_assert (clock != NULL);
gst_element_set_clock (h->element, clock);
gst_object_unref (clock);
}
/**
* gst_harness_use_testclock:
* @h: a #GstHarness
*
* Sets the #GstTestClock on the #GstHarness #GstElement
*
* MT safe.
*
* Since: 1.6
*/
void
gst_harness_use_testclock (GstHarness * h)
{
gst_element_set_clock (h->element, GST_CLOCK_CAST (h->priv->testclock));
}
/**
* gst_harness_get_testclock:
* @h: a #GstHarness
*
* Get the #GstTestClock. Useful if specific operations on the testclock is
* needed.
*
* MT safe.
*
* Returns: (transfer full): a #GstTestClock, or %NULL if the testclock is not
* present.
*
* Since: 1.6
*/
GstTestClock *
gst_harness_get_testclock (GstHarness * h)
{
return gst_object_ref (h->priv->testclock);
}
/**
* gst_harness_set_time:
* @h: a #GstHarness
* @time: a #GstClockTime to advance the clock to
*
* Advance the #GstTestClock to a specific time.
*
* MT safe.
*
* Returns: a @gboolean %TRUE if the time could be set. %FALSE if not.
*
* Since: 1.6
*/
gboolean
gst_harness_set_time (GstHarness * h, GstClockTime time)
{
gst_test_clock_set_time (h->priv->testclock, time);
return TRUE;
}
/**
* gst_harness_wait_for_clock_id_waits:
* @h: a #GstHarness
* @waits: a #guint describing the numbers of #GstClockID registered with
* the #GstTestClock
* @timeout: a #guint describing how many seconds to wait for @waits to be true
*
* Waits for @timeout seconds until @waits number of #GstClockID waits is
* registered with the #GstTestClock. Useful for writing deterministic tests,
* where you want to make sure that an expected number of waits have been
* reached.
*
* MT safe.
*
* Returns: a @gboolean %TRUE if the waits have been registered, %FALSE if not.
* (Could be that it timed out waiting or that more waits then waits was found)
*
* Since: 1.6
*/
gboolean
gst_harness_wait_for_clock_id_waits (GstHarness * h, guint waits, guint timeout)
{
GstTestClock *testclock = h->priv->testclock;
gint64 start_time;
gboolean ret;
start_time = g_get_monotonic_time ();
while (gst_test_clock_peek_id_count (testclock) < waits) {
gint64 time_spent;
g_usleep (G_USEC_PER_SEC / 1000);
time_spent = g_get_monotonic_time () - start_time;
if ((time_spent / G_USEC_PER_SEC) > timeout)
break;
}
ret = (waits == gst_test_clock_peek_id_count (testclock));
return ret;
}
/**
* gst_harness_crank_single_clock_wait:
* @h: a #GstHarness
*
* A "crank" consists of three steps:
* 1: Wait for a #GstClockID to be registered with the #GstTestClock.
* 2: Advance the #GstTestClock to the time the #GstClockID is waiting for.
* 3: Release the #GstClockID wait.
* Together, this provides an easy way to not have to think about the details
* around clocks and time, but still being able to write deterministic tests
* that are dependant on this. A "crank" can be though of as the notion of
* manually driving the clock forward to its next logical step.
*
* MT safe.
*
* Returns: a @gboolean %TRUE if the "crank" was successful, %FALSE if not.
*
* Since: 1.6
*/
gboolean
gst_harness_crank_single_clock_wait (GstHarness * h)
{
return gst_test_clock_crank (h->priv->testclock);
}
/**
* gst_harness_crank_multiple_clock_waits:
* @h: a #GstHarness
* @waits: a #guint describing the number of #GstClockIDs to crank
*
* Similar to gst_harness_crank_single_clock_wait(), this is the function to use
* if your harnessed element(s) are using more then one gst_clock_id_wait.
* Failing to do so can (and will) make it racy which #GstClockID you actually
* are releasing, where as this function will process all the waits at the
* same time, ensuring that one thread can't register another wait before
* both are released.
*
* MT safe.
*
* Returns: a @gboolean %TRUE if the "crank" was successful, %FALSE if not.
*
* Since: 1.6
*/
gboolean
gst_harness_crank_multiple_clock_waits (GstHarness * h, guint waits)
{
GstTestClock *testclock = h->priv->testclock;
GList *pending;
guint processed;
gst_test_clock_wait_for_multiple_pending_ids (testclock, waits, &pending);
gst_harness_set_time (h, gst_test_clock_id_list_get_latest_time (pending));
processed = gst_test_clock_process_id_list (testclock, pending);
g_list_free_full (pending, gst_clock_id_unref);
return processed == waits;
}
/**
* gst_harness_play:
* @h: a #GstHarness
*
* This will set the harnessed #GstElement to %GST_STATE_PLAYING.
* #GstElements without a sink-#GstPad and with the %GST_ELEMENT_FLAG_SOURCE
* flag set is concidered a src #GstElement
* Non-src #GstElements (like sinks and filters) are automatically set to
* playing by the #GstHarness, but src #GstElements are not to avoid them
* starting to produce buffers.
* Hence, for src #GstElement you must call gst_harness_play() explicitly.
*
* MT safe.
*
* Since: 1.6
*/
void
gst_harness_play (GstHarness * h)
{
GstState state, pending;
gboolean state_change;
state_change = gst_element_set_state (h->element, GST_STATE_PLAYING);
g_assert_cmpint (GST_STATE_CHANGE_SUCCESS, ==, state_change);
state_change = gst_element_get_state (h->element, &state, &pending, 0);
g_assert_cmpint (GST_STATE_CHANGE_SUCCESS, ==, state_change);
g_assert_cmpint (GST_STATE_PLAYING, ==, state);
}
/**
* gst_harness_set_blocking_push_mode:
* @h: a #GstHarness
*
* Setting this will make the harness block in the chain-function, and
* then release when gst_harness_pull() or gst_harness_try_pull() is called.
* Can be useful when wanting to control a src-element that is not implementing
* gst_clock_id_wait() so it can't be controlled by the #GstTestClock, since
* it otherwise would produce buffers as fast as possible.
*
* MT safe.
*
* Since: 1.6
*/
void
gst_harness_set_blocking_push_mode (GstHarness * h)
{
GstHarnessPrivate *priv = h->priv;
priv->blocking_push_mode = TRUE;
}
/**
* gst_harness_set_forwarding:
* @h: a #GstHarness
* @forwarding: a #gboolean to enable/disable forwarding
*
* As a convenience, a src-harness will forward %GST_EVENT_STREAM_START,
* %GST_EVENT_CAPS and %GST_EVENT_SEGMENT to the main-harness if forwarding
* is enabled, and forward any sticky-events from the main-harness to
* the sink-harness. It will also forward the %GST_QUERY_ALLOCATION.
*
* If forwarding is disabled, the user will have to either manually push
* these events from the src-harness using gst_harness_src_push_event(), or
* create and push them manually. While this will allow full control and
* inspection of these events, for the most cases having forwarding enabled
* will be sufficient when writing a test where the src-harness' main function
* is providing data for the main-harness.
*
* Forwarding is enabled by default.
*
* MT safe.
*
* Since: 1.6
*/
void
gst_harness_set_forwarding (GstHarness * h, gboolean forwarding)
{
GstHarnessPrivate *priv = h->priv;
priv->forwarding = forwarding;
if (h->src_harness)
gst_harness_set_forwarding (h->src_harness, forwarding);
if (h->sink_harness)
gst_harness_set_forwarding (h->sink_harness, forwarding);
}
static void
gst_harness_set_forward_pad (GstHarness * h, GstPad * fwdpad)
{
HARNESS_LOCK (h);
gst_object_replace ((GstObject **) & h->priv->sink_forward_pad,
(GstObject *) fwdpad);
HARNESS_UNLOCK (h);
}
/**
* gst_harness_create_buffer:
* @h: a #GstHarness
* @size: a #gsize specifying the size of the buffer
*
* Allocates a buffer using a #GstBufferPool if present, or else using the
* configured #GstAllocator and #GstAllocationParams
*
* MT safe.
*
* Returns: a #GstBuffer of size @size
*
* Since: 1.6
*/
GstBuffer *
gst_harness_create_buffer (GstHarness * h, gsize size)
{
GstHarnessPrivate *priv = h->priv;
GstBuffer *ret = NULL;
GstFlowReturn flow;
if (gst_pad_check_reconfigure (h->srcpad))
gst_harness_negotiate (h);
if (priv->pool) {
flow = gst_buffer_pool_acquire_buffer (priv->pool, &ret, NULL);
g_assert_cmpint (flow, ==, GST_FLOW_OK);
if (gst_buffer_get_size (ret) != size) {
GST_DEBUG_OBJECT (h,
"use fallback, pool is configured with a different size (%zu != %zu)",
size, gst_buffer_get_size (ret));
gst_buffer_unref (ret);
ret = NULL;
}
}
if (!ret)
ret =
gst_buffer_new_allocate (priv->allocator, size,
&priv->allocation_params);
g_assert (ret != NULL);
return ret;
}
/**
* gst_harness_push:
* @h: a #GstHarness
* @buffer: (transfer full): a #GstBuffer to push
*
* Pushes a #GstBuffer on the #GstHarness srcpad. The standard way of
* interacting with an harnessed element.
*
* MT safe.
*
* Returns: a #GstFlowReturn with the result from the push
*
* Since: 1.6
*/
GstFlowReturn
gst_harness_push (GstHarness * h, GstBuffer * buffer)
{
GstHarnessPrivate *priv = h->priv;
g_assert (buffer != NULL);
priv->last_push_ts = GST_BUFFER_TIMESTAMP (buffer);
return gst_pad_push (h->srcpad, buffer);
}
/**
* gst_harness_pull:
* @h: a #GstHarness
*
* Pulls a #GstBuffer from the #GAsyncQueue on the #GstHarness sinkpad. The pull
* will timeout in 60 seconds. This is the standard way of getting a buffer
* from a harnessed #GstElement.
*
* MT safe.
*
* Returns: (transfer full): a #GstBuffer or %NULL if timed out.
*
* Since: 1.6
*/
GstBuffer *
gst_harness_pull (GstHarness * h)
{
GstHarnessPrivate *priv = h->priv;
GstBuffer *buf = (GstBuffer *) g_async_queue_timeout_pop (priv->buffer_queue,
G_USEC_PER_SEC * 60);
if (priv->blocking_push_mode) {
g_mutex_lock (&priv->blocking_push_mutex);
g_cond_signal (&priv->blocking_push_cond);
g_mutex_unlock (&priv->blocking_push_mutex);
}
return buf;
}
/**
* gst_harness_try_pull:
* @h: a #GstHarness
*
* Pulls a #GstBuffer from the #GAsyncQueue on the #GstHarness sinkpad. Unlike
* gst_harness_pull this will not wait for any buffers if not any are present,
* and return %NULL straight away.
*
* MT safe.
*
* Returns: (transfer full): a #GstBuffer or %NULL if no buffers are present in the #GAsyncQueue
*
* Since: 1.6
*/
GstBuffer *
gst_harness_try_pull (GstHarness * h)
{
GstHarnessPrivate *priv = h->priv;
GstBuffer *buf = (GstBuffer *) g_async_queue_try_pop (priv->buffer_queue);
if (priv->blocking_push_mode) {
g_mutex_lock (&priv->blocking_push_mutex);
g_cond_signal (&priv->blocking_push_cond);
g_mutex_unlock (&priv->blocking_push_mutex);
}
return buf;
}
/**
* gst_harness_push_and_pull:
* @h: a #GstHarness
* @buffer: (transfer full): a #GstBuffer to push
*
* Basically a gst_harness_push and a gst_harness_pull in one line. Reflects
* the fact that you often want to do exactly this in your test: Push one buffer
* in, and inspect the outcome.
*
* MT safe.
*
* Returns: (transfer full): a #GstBuffer or %NULL if timed out.
*
* Since: 1.6
*/
GstBuffer *
gst_harness_push_and_pull (GstHarness * h, GstBuffer * buffer)
{
gst_harness_push (h, buffer);
return gst_harness_pull (h);
}
/**
* gst_harness_buffers_received:
* @h: a #GstHarness
*
* The total number of #GstBuffers that has arrived on the #GstHarness sinkpad.
* This number includes buffers that have been dropped as well as buffers
* that have already been pulled out.
*
* MT safe.
*
* Returns: a #guint number of buffers received
*
* Since: 1.6
*/
guint
gst_harness_buffers_received (GstHarness * h)
{
GstHarnessPrivate *priv = h->priv;
return g_atomic_int_get (&priv->recv_buffers);
}
/**
* gst_harness_buffers_in_queue:
* @h: a #GstHarness
*
* The number of #GstBuffers currently in the #GstHarness sinkpad #GAsyncQueue
*
* MT safe.
*
* Returns: a #guint number of buffers in the queue
*
* Since: 1.6
*/
guint
gst_harness_buffers_in_queue (GstHarness * h)
{
GstHarnessPrivate *priv = h->priv;
return g_async_queue_length (priv->buffer_queue);
}
/**
* gst_harness_set_drop_buffers:
* @h: a #GstHarness
* @drop_buffers: a #gboolean specifying to drop outgoing buffers or not
*
* When set to %TRUE, instead of placing the buffers arriving from the harnessed
* #GstElement inside the sinkpads #GAsyncQueue, they are instead unreffed.
*
* MT safe.
*
* Since: 1.6
*/
void
gst_harness_set_drop_buffers (GstHarness * h, gboolean drop_buffers)
{
GstHarnessPrivate *priv = h->priv;
priv->drop_buffers = drop_buffers;
}
/**
* gst_harness_take_all_data_as_buffer:
* @h: a #GstHarness
*
* Pulls all pending data from the harness and returns it as a single buffer.
*
* Returns: (transfer full): the data as a buffer. Unref with gst_buffer_unref()
* when no longer needed.
*
* Since: 1.14
*/
GstBuffer *
gst_harness_take_all_data_as_buffer (GstHarness * h)
{
GstHarnessPrivate *priv;
GstBuffer *ret, *buf;
g_return_val_if_fail (h != NULL, NULL);
priv = h->priv;
g_async_queue_lock (priv->buffer_queue);
ret = g_async_queue_try_pop_unlocked (priv->buffer_queue);
if (ret == NULL) {
ret = gst_buffer_new ();
} else {
/* buffer appending isn't very efficient for larger numbers of buffers
* or lots of memories, but this function is not performance critical and
* we can still improve it if and when the need arises. For now KISS. */
while ((buf = g_async_queue_try_pop_unlocked (priv->buffer_queue)))
ret = gst_buffer_append (ret, buf);
}
g_async_queue_unlock (priv->buffer_queue);
return ret;
}
/**
* gst_harness_take_all_data: (skip)
* @h: a #GstHarness
* @size: (out): the size of the data in bytes
*
* Pulls all pending data from the harness and returns it as a single
* data slice.
*
* Returns: (transfer full): a pointer to the data, newly allocated. Free
* with g_free() when no longer needed. Will return %NULL if there is no
* data.
*
* Since: 1.14
*/
guint8 *
gst_harness_take_all_data (GstHarness * h, gsize * size)
{
GstBuffer *buf;
guint8 *data = NULL;
g_return_val_if_fail (h != NULL, NULL);
g_return_val_if_fail (size != NULL, NULL);
buf = gst_harness_take_all_data_as_buffer (h);
gst_buffer_extract_dup (buf, 0, -1, (gpointer *) & data, size);
gst_buffer_unref (buf);
return data;
}
/**
* gst_harness_take_all_data_as_bytes: (rename-to gst_harness_take_all_data)
* @h: a #GstHarness
*
* Pulls all pending data from the harness and returns it as a single #GBytes.
*
* Returns: (transfer full): a pointer to the data, newly allocated. Free
* with g_free() when no longer needed.
*
* Since: 1.14
*/
GBytes *
gst_harness_take_all_data_as_bytes (GstHarness * h)
{
guint8 *data;
gsize size = 0;
g_return_val_if_fail (h != NULL, NULL);
data = gst_harness_take_all_data (h, &size);
return g_bytes_new_take (data, size);
}
/**
* gst_harness_dump_to_file:
* @h: a #GstHarness
* @filename: a #gchar with a the name of a file
*
* Allows you to dump the #GstBuffers the #GstHarness sinkpad #GAsyncQueue
* to a file.
*
* MT safe.
*
* Since: 1.6
*/
void
gst_harness_dump_to_file (GstHarness * h, const gchar * filename)
{
GError *err = NULL;
gpointer data;
gsize size;
data = gst_harness_take_all_data (h, &size);
if (!g_file_set_contents (filename, data ? data : "", size, &err)) {
g_error ("GstHarness: Failed to write data to file: %s", err->message);
g_clear_error (&err);
}
g_free (data);
}
/**
* gst_harness_get_last_pushed_timestamp:
* @h: a #GstHarness
*
* Get the timestamp of the last #GstBuffer pushed on the #GstHarness srcpad,
* typically with gst_harness_push or gst_harness_push_from_src.
*
* MT safe.
*
* Returns: a #GstClockTime with the timestamp or %GST_CLOCK_TIME_NONE if no
* #GstBuffer has been pushed on the #GstHarness srcpad
*
* Since: 1.6
*/
GstClockTime
gst_harness_get_last_pushed_timestamp (GstHarness * h)
{
GstHarnessPrivate *priv = h->priv;
return priv->last_push_ts;
}
/**
* gst_harness_push_event:
* @h: a #GstHarness
* @event: a #GstEvent to push
*
* Pushes an #GstEvent on the #GstHarness srcpad.
*
* MT safe.
*
* Returns: a #gboolean with the result from the push
*
* Since: 1.6
*/
gboolean
gst_harness_push_event (GstHarness * h, GstEvent * event)
{
return gst_pad_push_event (h->srcpad, event);
}
/**
* gst_harness_pull_event:
* @h: a #GstHarness
*
* Pulls an #GstEvent from the #GAsyncQueue on the #GstHarness sinkpad.
* Timeouts after 60 seconds similar to gst_harness_pull.
*
* MT safe.
*
* Returns: a #GstEvent or %NULL if timed out.
*
* Since: 1.6
*/
GstEvent *
gst_harness_pull_event (GstHarness * h)
{
GstHarnessPrivate *priv = h->priv;
return (GstEvent *) g_async_queue_timeout_pop (priv->sink_event_queue,
G_USEC_PER_SEC * 60);
}
/**
* gst_harness_try_pull_event:
* @h: a #GstHarness
*
* Pulls an #GstEvent from the #GAsyncQueue on the #GstHarness sinkpad.
* See gst_harness_try_pull for details.
*
* MT safe.
*
* Returns: a #GstEvent or %NULL if no buffers are present in the #GAsyncQueue
*
* Since: 1.6
*/
GstEvent *
gst_harness_try_pull_event (GstHarness * h)
{
GstHarnessPrivate *priv = h->priv;
return (GstEvent *) g_async_queue_try_pop (priv->sink_event_queue);
}
/**
* gst_harness_events_received:
* @h: a #GstHarness
*
* The total number of #GstEvents that has arrived on the #GstHarness sinkpad
* This number includes events handled by the harness as well as events
* that have already been pulled out.
*
* MT safe.
*
* Returns: a #guint number of events received
*
* Since: 1.6
*/
guint
gst_harness_events_received (GstHarness * h)
{
GstHarnessPrivate *priv = h->priv;
return g_atomic_int_get (&priv->recv_events);
}
/**
* gst_harness_events_in_queue:
* @h: a #GstHarness
*
* The number of #GstEvents currently in the #GstHarness sinkpad #GAsyncQueue
*
* MT safe.
*
* Returns: a #guint number of events in the queue
*
* Since: 1.6
*/
guint
gst_harness_events_in_queue (GstHarness * h)
{
GstHarnessPrivate *priv = h->priv;
return g_async_queue_length (priv->sink_event_queue);
}
/**
* gst_harness_push_upstream_event:
* @h: a #GstHarness
* @event: a #GstEvent to push
*
* Pushes an #GstEvent on the #GstHarness sinkpad.
*
* MT safe.
*
* Returns: a #gboolean with the result from the push
*
* Since: 1.6
*/
gboolean
gst_harness_push_upstream_event (GstHarness * h, GstEvent * event)
{
g_return_val_if_fail (event != NULL, FALSE);
g_return_val_if_fail (GST_EVENT_IS_UPSTREAM (event), FALSE);
return gst_pad_push_event (h->sinkpad, event);
}
/**
* gst_harness_pull_upstream_event:
* @h: a #GstHarness
*
* Pulls an #GstEvent from the #GAsyncQueue on the #GstHarness srcpad.
* Timeouts after 60 seconds similar to gst_harness_pull.
*
* MT safe.
*
* Returns: a #GstEvent or %NULL if timed out.
*
* Since: 1.6
*/
GstEvent *
gst_harness_pull_upstream_event (GstHarness * h)
{
GstHarnessPrivate *priv = h->priv;
return (GstEvent *) g_async_queue_timeout_pop (priv->src_event_queue,
G_USEC_PER_SEC * 60);
}
/**
* gst_harness_try_pull_upstream_event:
* @h: a #GstHarness
*
* Pulls an #GstEvent from the #GAsyncQueue on the #GstHarness srcpad.
* See gst_harness_try_pull for details.
*
* MT safe.
*
* Returns: a #GstEvent or %NULL if no buffers are present in the #GAsyncQueue
*
* Since: 1.6
*/
GstEvent *
gst_harness_try_pull_upstream_event (GstHarness * h)
{
GstHarnessPrivate *priv = h->priv;
return (GstEvent *) g_async_queue_try_pop (priv->src_event_queue);
}
/**
* gst_harness_upstream_events_received:
* @h: a #GstHarness
*
* The total number of #GstEvents that has arrived on the #GstHarness srcpad
* This number includes events handled by the harness as well as events
* that have already been pulled out.
*
* MT safe.
*
* Returns: a #guint number of events received
*
* Since: 1.6
*/
guint
gst_harness_upstream_events_received (GstHarness * h)
{
GstHarnessPrivate *priv = h->priv;
return g_atomic_int_get (&priv->recv_upstream_events);
}
/**
* gst_harness_upstream_events_in_queue:
* @h: a #GstHarness
*
* The number of #GstEvents currently in the #GstHarness srcpad #GAsyncQueue
*
* MT safe.
*
* Returns: a #guint number of events in the queue
*
* Since: 1.6
*/
guint
gst_harness_upstream_events_in_queue (GstHarness * h)
{
GstHarnessPrivate *priv = h->priv;
return g_async_queue_length (priv->src_event_queue);
}
/**
* gst_harness_query_latency:
* @h: a #GstHarness
*
* Get the min latency reported by any harnessed #GstElement.
*
* MT safe.
*
* Returns: a #GstClockTime with min latency
*
* Since: 1.6
*/
GstClockTime
gst_harness_query_latency (GstHarness * h)
{
GstQuery *query;
gboolean is_live;
GstClockTime min = GST_CLOCK_TIME_NONE;
GstClockTime max;
query = gst_query_new_latency ();
if (gst_pad_peer_query (h->sinkpad, query)) {
gst_query_parse_latency (query, &is_live, &min, &max);
}
gst_query_unref (query);
return min;
}
/**
* gst_harness_set_upstream_latency:
* @h: a #GstHarness
* @latency: a #GstClockTime specifying the latency
*
* Sets the min latency reported by #GstHarness when receiving a latency-query
*
* Since: 1.6
*/
void
gst_harness_set_upstream_latency (GstHarness * h, GstClockTime latency)
{
GstHarnessPrivate *priv = h->priv;
priv->latency_min = latency;
}
/**
* gst_harness_get_allocator:
* @h: a #GstHarness
* @allocator: (out) (allow-none) (transfer none): the #GstAllocator used
* @params: (out) (allow-none) (transfer full): the #GstAllocationParams of
* @allocator
*
* Gets the @allocator and its @params that has been decided to use after an
* allocation query.
*
* MT safe.
*
* Since: 1.6
*/
void
gst_harness_get_allocator (GstHarness * h, GstAllocator ** allocator,
GstAllocationParams * params)
{
GstHarnessPrivate *priv = h->priv;
if (allocator)
*allocator = priv->allocator;
if (params)
*params = priv->allocation_params;
}
/**
* gst_harness_set_propose_allocator:
* @h: a #GstHarness
* @allocator: (allow-none) (transfer full): a #GstAllocator
* @params: (allow-none) (transfer none): a #GstAllocationParams
*
* Sets the @allocator and @params to propose when receiving an allocation
* query.
*
* MT safe.
*
* Since: 1.6
*/
void
gst_harness_set_propose_allocator (GstHarness * h, GstAllocator * allocator,
const GstAllocationParams * params)
{
GstHarnessPrivate *priv = h->priv;
if (allocator)
priv->propose_allocator = allocator;
if (params)
priv->propose_allocation_params = *params;
}
/**
* gst_harness_add_src_harness:
* @h: a #GstHarness
* @src_harness: (transfer full): a #GstHarness to be added as a src-harness.
* @has_clock_wait: a #gboolean specifying if the #GstElement uses
* gst_clock_wait_id internally.
*
* A src-harness is a great way of providing the #GstHarness with data.
* By adding a src-type #GstElement, it is then easy to use functions like
* gst_harness_push_from_src or gst_harness_src_crank_and_push_many
* to provide your harnessed element with input. The @has_clock_wait variable
* is a greate way to control you src-element with, in that you can have it
* produce a buffer for you by simply cranking the clock, and not have it
* spin out of control producing buffers as fast as possible.
*
* If a src-harness already exists it will be replaced.
*
* MT safe.
*
* Since: 1.6
*/
void
gst_harness_add_src_harness (GstHarness * h,
GstHarness * src_harness, gboolean has_clock_wait)
{
if (h->src_harness)
gst_harness_teardown (h->src_harness);
h->src_harness = src_harness;
gst_harness_set_forward_pad (h->src_harness, h->srcpad);
h->src_harness->priv->has_clock_wait = has_clock_wait;
gst_harness_set_forwarding (h->src_harness, h->priv->forwarding);
}
/**
* gst_harness_add_src:
* @h: a #GstHarness
* @src_element_name: a #gchar with the name of a #GstElement
* @has_clock_wait: a #gboolean specifying if the #GstElement uses
* gst_clock_wait_id internally.
*
* Similar to gst_harness_add_src_harness, this is a convenience to
* directly create a src-harness using the @src_element_name name specified.
*
* MT safe.
*
* Since: 1.6
*/
void
gst_harness_add_src (GstHarness * h,
const gchar * src_element_name, gboolean has_clock_wait)
{
GstHarness *src_harness = gst_harness_new (src_element_name);
gst_harness_add_src_harness (h, src_harness, has_clock_wait);
}
/**
* gst_harness_add_src_parse:
* @h: a #GstHarness
* @launchline: a #gchar describing a gst-launch type line
* @has_clock_wait: a #gboolean specifying if the #GstElement uses
* gst_clock_wait_id internally.
*
* Similar to gst_harness_add_src, this allows you to specify a launch-line,
* which can be useful for both having more then one #GstElement acting as your
* src (Like a src producing raw buffers, and then an encoder, providing encoded
* data), but also by allowing you to set properties like "is-live" directly on
* the elements.
*
* MT safe.
*
* Since: 1.6
*/
void
gst_harness_add_src_parse (GstHarness * h,
const gchar * launchline, gboolean has_clock_wait)
{
GstHarness *src_harness = gst_harness_new_parse (launchline);
gst_harness_add_src_harness (h, src_harness, has_clock_wait);
}
/**
* gst_harness_push_from_src:
* @h: a #GstHarness
*
* Transfer data from the src-#GstHarness to the main-#GstHarness. It consists
* of 4 steps:
* 1: Make sure the src is started. (see: gst_harness_play)
* 2: Crank the clock (see: gst_harness_crank_single_clock_wait)
* 3: Pull a #GstBuffer from the src-#GstHarness (see: gst_harness_pull)
* 4: Push the same #GstBuffer into the main-#GstHarness (see: gst_harness_push)
*
* MT safe.
*
* Returns: a #GstFlowReturn with the result of the push
*
* Since: 1.6
*/
GstFlowReturn
gst_harness_push_from_src (GstHarness * h)
{
GstBuffer *buf;
gboolean crank;
g_assert (h->src_harness);
/* FIXME: this *is* the right time to start the src,
but maybe a flag so we don't keep telling it to play? */
gst_harness_play (h->src_harness);
if (h->src_harness->priv->has_clock_wait) {
crank = gst_harness_crank_single_clock_wait (h->src_harness);
g_assert (crank);
}
buf = gst_harness_pull (h->src_harness);
g_assert (buf != NULL);
return gst_harness_push (h, buf);
}
/**
* gst_harness_src_crank_and_push_many:
* @h: a #GstHarness
* @cranks: a #gint with the number of calls to gst_harness_crank_single_clock_wait
* @pushes: a #gint with the number of calls to gst_harness_push
*
* Transfer data from the src-#GstHarness to the main-#GstHarness. Similar to
* gst_harness_push_from_src, this variant allows you to specify how many cranks
* and how many pushes to perform. This can be useful for both moving a lot
* of data at the same time, as well as cases when one crank does not equal one
* buffer to push and v.v.
*
* MT safe.
*
* Returns: a #GstFlowReturn with the result of the push
*
* Since: 1.6
*/
GstFlowReturn
gst_harness_src_crank_and_push_many (GstHarness * h, gint cranks, gint pushes)
{
GstFlowReturn ret = GST_FLOW_OK;
gboolean crank;
int i;
g_assert (h->src_harness);
gst_harness_play (h->src_harness);
for (i = 0; i < cranks; i++) {
crank = gst_harness_crank_single_clock_wait (h->src_harness);
g_assert (crank);
}
for (i = 0; i < pushes; i++) {
GstBuffer *buf;
buf = gst_harness_pull (h->src_harness);
g_assert (buf != NULL);
ret = gst_harness_push (h, buf);
if (ret != GST_FLOW_OK)
break;
}
return ret;
}
/**
* gst_harness_src_push_event:
* @h: a #GstHarness
*
* Similar to what gst_harness_src_push does with #GstBuffers, this transfers
* a #GstEvent from the src-#GstHarness to the main-#GstHarness. Note that
* some #GstEvents are being transferred automagically. Look at sink_forward_pad
* for details.
*
* MT safe.
*
* Returns: a #gboolean with the result of the push
*
* Since: 1.6
*/
gboolean
gst_harness_src_push_event (GstHarness * h)
{
return gst_harness_push_event (h, gst_harness_pull_event (h->src_harness));
}
static gboolean
forward_sticky_events (GstPad * pad, GstEvent ** ev, gpointer user_data)
{
GstHarness *h = user_data;
return gst_pad_push_event (h->priv->sink_forward_pad, gst_event_ref (*ev));
}
/**
* gst_harness_add_sink_harness:
* @h: a #GstHarness
* @sink_harness: (transfer full): a #GstHarness to be added as a sink-harness.
*
* Similar to gst_harness_add_src, this allows you to send the data coming out
* of your harnessed #GstElement to a sink-element, allowing to test different
* responses the element output might create in sink elements. An example might
* be an existing sink providing some analytical data on the input it receives that
* can be useful to your testing. If the goal is to test a sink-element itself,
* this is better acheived using gst_harness_new directly on the sink.
*
* If a sink-harness already exists it will be replaced.
*
* MT safe.
*
* Since: 1.6
*/
void
gst_harness_add_sink_harness (GstHarness * h, GstHarness * sink_harness)
{
GstHarnessPrivate *priv = h->priv;
if (h->sink_harness) {
gst_harness_set_forward_pad (h, NULL);
gst_harness_teardown (h->sink_harness);
}
h->sink_harness = sink_harness;
gst_harness_set_forward_pad (h, h->sink_harness->srcpad);
if (priv->forwarding && h->sinkpad)
gst_pad_sticky_events_foreach (h->sinkpad, forward_sticky_events, h);
gst_harness_set_forwarding (h->sink_harness, priv->forwarding);
}
/**
* gst_harness_add_sink:
* @h: a #GstHarness
* @sink_element_name: a #gchar with the name of a #GstElement
*
* Similar to gst_harness_add_sink_harness, this is a convenience to
* directly create a sink-harness using the @sink_element_name name specified.
*
* MT safe.
*
* Since: 1.6
*/
void
gst_harness_add_sink (GstHarness * h, const gchar * sink_element_name)
{
GstHarness *sink_harness = gst_harness_new (sink_element_name);
gst_harness_add_sink_harness (h, sink_harness);
}
/**
* gst_harness_add_sink_parse:
* @h: a #GstHarness
* @launchline: a #gchar with the name of a #GstElement
*
* Similar to gst_harness_add_sink, this allows you to specify a launch-line
* instead of just an element name. See gst_harness_add_src_parse for details.
*
* MT safe.
*
* Since: 1.6
*/
void
gst_harness_add_sink_parse (GstHarness * h, const gchar * launchline)
{
GstHarness *sink_harness = gst_harness_new_parse (launchline);
gst_harness_add_sink_harness (h, sink_harness);
}
/**
* gst_harness_push_to_sink:
* @h: a #GstHarness
*
* Transfer one #GstBuffer from the main-#GstHarness to the sink-#GstHarness.
* See gst_harness_push_from_src for details.
*
* MT safe.
*
* Returns: a #GstFlowReturn with the result of the push
*
* Since: 1.6
*/
GstFlowReturn
gst_harness_push_to_sink (GstHarness * h)
{
GstBuffer *buf;
g_assert (h->sink_harness);
buf = gst_harness_pull (h);
g_assert (buf != NULL);
return gst_harness_push (h->sink_harness, buf);
}
/**
* gst_harness_sink_push_many:
* @h: a #GstHarness
* @pushes: a #gint with the number of calls to gst_harness_push_to_sink
*
* Convenience that calls gst_harness_push_to_sink @pushes number of times.
* Will abort the pushing if any one push fails.
*
* MT safe.
*
* Returns: a #GstFlowReturn with the result of the push
*
* Since: 1.6
*/
GstFlowReturn
gst_harness_sink_push_many (GstHarness * h, gint pushes)
{
GstFlowReturn ret = GST_FLOW_OK;
int i;
g_assert (h->sink_harness);
for (i = 0; i < pushes; i++) {
ret = gst_harness_push_to_sink (h);
if (ret != GST_FLOW_OK)
break;
}
return ret;
}
/**
* gst_harness_find_element:
* @h: a #GstHarness
* @element_name: a #gchar with a #GstElementFactory name
*
* Most useful in conjunction with gst_harness_new_parse, this will scan the
* #GstElements inside the #GstHarness, and check if any of them matches
* @element_name. Typical usecase being that you need to access one of the
* harnessed elements for properties and/or signals.
*
* MT safe.
*
* Returns: (transfer full) (allow-none): a #GstElement or %NULL if not found
*
* Since: 1.6
*/
GstElement *
gst_harness_find_element (GstHarness * h, const gchar * element_name)
{
gboolean done = FALSE;
GstIterator *iter;
GValue data = G_VALUE_INIT;
iter = gst_bin_iterate_elements (GST_BIN (h->element));
done = FALSE;
while (!done) {
switch (gst_iterator_next (iter, &data)) {
case GST_ITERATOR_OK:
{
GstElement *element = g_value_get_object (&data);
GstPluginFeature *feature =
GST_PLUGIN_FEATURE (gst_element_get_factory (element));
if (!strcmp (element_name, gst_plugin_feature_get_name (feature))) {
gst_iterator_free (iter);
return element;
}
g_value_reset (&data);
break;
}
case GST_ITERATOR_RESYNC:
gst_iterator_resync (iter);
break;
case GST_ITERATOR_ERROR:
case GST_ITERATOR_DONE:
done = TRUE;
break;
}
}
gst_iterator_free (iter);
return NULL;
}
/**
* gst_harness_set:
* @h: a #GstHarness
* @element_name: a #gchar with a #GstElementFactory name
* @first_property_name: a #gchar with the first property name
* @...: value for the first property, followed optionally by more
* name/value pairs, followed by %NULL
*
* A convenience function to allows you to call g_object_set on a #GstElement
* that are residing inside the #GstHarness, by using normal g_object_set
* syntax.
*
* MT safe.
*
* Since: 1.6
*/
void
gst_harness_set (GstHarness * h,
const gchar * element_name, const gchar * first_property_name, ...)
{
va_list var_args;
GstElement *element = gst_harness_find_element (h, element_name);
va_start (var_args, first_property_name);
g_object_set_valist (G_OBJECT (element), first_property_name, var_args);
va_end (var_args);
gst_object_unref (element);
}
/**
* gst_harness_get:
* @h: a #GstHarness
* @element_name: a #gchar with a #GstElementFactory name
* @first_property_name: a #gchar with the first property name
* @...: return location for the first property, followed optionally by more
* name/return location pairs, followed by %NULL
*
* A convenience function to allows you to call g_object_get on a #GstElement
* that are residing inside the #GstHarness, by using normal g_object_get
* syntax.
*
* MT safe.
*
* Since: 1.6
*/
void
gst_harness_get (GstHarness * h,
const gchar * element_name, const gchar * first_property_name, ...)
{
va_list var_args;
GstElement *element = gst_harness_find_element (h, element_name);
va_start (var_args, first_property_name);
g_object_get_valist (G_OBJECT (element), first_property_name, var_args);
va_end (var_args);
gst_object_unref (element);
}
/**
* gst_harness_add_probe:
* @h: a #GstHarness
* @element_name: a #gchar with a #GstElementFactory name
* @pad_name: a #gchar with the name of the pad to attach the probe to
* @mask: a #GstPadProbeType (see gst_pad_add_probe)
* @callback: a #GstPadProbeCallback (see gst_pad_add_probe)
* @user_data: a #gpointer (see gst_pad_add_probe)
* @destroy_data: a #GDestroyNotify (see gst_pad_add_probe)
*
* A convenience function to allows you to call gst_pad_add_probe on a
* #GstPad of a #GstElement that are residing inside the #GstHarness,
* by using normal gst_pad_add_probe syntax
*
* MT safe.
*
* Since: 1.6
*/
void
gst_harness_add_probe (GstHarness * h,
const gchar * element_name, const gchar * pad_name, GstPadProbeType mask,
GstPadProbeCallback callback, gpointer user_data,
GDestroyNotify destroy_data)
{
GstElement *element = gst_harness_find_element (h, element_name);
GstPad *pad = gst_element_get_static_pad (element, pad_name);
gst_pad_add_probe (pad, mask, callback, user_data, destroy_data);
gst_object_unref (pad);
gst_object_unref (element);
}
/******************************************************************************/
/* STRESS */
/******************************************************************************/
struct _GstHarnessThread
{
GstHarness *h;
GThread *thread;
gboolean running;
gulong sleep;
GDestroyNotify freefunc;
};
typedef struct
{
GstHarnessThread t;
GFunc init;
GFunc callback;
gpointer data;
} GstHarnessCustomThread;
typedef struct
{
GstHarnessThread t;
GstCaps *caps;
GstSegment segment;
GstHarnessPrepareBufferFunc func;
gpointer data;
GDestroyNotify notify;
} GstHarnessPushBufferThread;
typedef struct
{
GstHarnessThread t;
GstHarnessPrepareEventFunc func;
gpointer data;
GDestroyNotify notify;
} GstHarnessPushEventThread;
typedef struct
{
GstHarnessThread t;
gchar *name;
GValue value;
} GstHarnessPropThread;
typedef struct
{
GstHarnessThread t;
GstPadTemplate *templ;
gchar *name;
GstCaps *caps;
gboolean release;
GSList *pads;
} GstHarnessReqPadThread;
static void
gst_harness_thread_init (GstHarnessThread * t, GDestroyNotify freefunc,
GstHarness * h, gulong sleep)
{
t->freefunc = freefunc;
t->h = h;
t->sleep = sleep;
g_ptr_array_add (h->priv->stress, t);
}
static void
gst_harness_thread_free (GstHarnessThread * t)
{
g_slice_free (GstHarnessThread, t);
}
static void
gst_harness_custom_thread_free (GstHarnessCustomThread * t)
{
g_slice_free (GstHarnessCustomThread, t);
}
static void
gst_harness_push_buffer_thread_free (GstHarnessPushBufferThread * t)
{
if (t != NULL) {
gst_caps_replace (&t->caps, NULL);
if (t->notify != NULL)
t->notify (t->data);
g_slice_free (GstHarnessPushBufferThread, t);
}
}
static void
gst_harness_push_event_thread_free (GstHarnessPushEventThread * t)
{
if (t != NULL) {
if (t->notify != NULL)
t->notify (t->data);
g_slice_free (GstHarnessPushEventThread, t);
}
}
static void
gst_harness_property_thread_free (GstHarnessPropThread * t)
{
if (t != NULL) {
g_free (t->name);
g_value_unset (&t->value);
g_slice_free (GstHarnessPropThread, t);
}
}
static void
gst_harness_requestpad_release (GstPad * pad, GstElement * element)
{
gst_element_release_request_pad (element, pad);
gst_object_unref (pad);
}
static void
gst_harness_requestpad_release_pads (GstHarnessReqPadThread * rpt)
{
g_slist_foreach (rpt->pads, (GFunc) gst_harness_requestpad_release,
rpt->t.h->element);
g_slist_free (rpt->pads);
rpt->pads = NULL;
}
static void
gst_harness_requestpad_thread_free (GstHarnessReqPadThread * t)
{
if (t != NULL) {
gst_object_replace ((GstObject **) & t->templ, NULL);
g_free (t->name);
gst_caps_replace (&t->caps, NULL);
gst_harness_requestpad_release_pads (t);
g_slice_free (GstHarnessReqPadThread, t);
}
}
#define GST_HARNESS_THREAD_START(ID, t) \
(((GstHarnessThread *)t)->running = TRUE, \
((GstHarnessThread *)t)->thread = g_thread_new ( \
"gst-harness-stress-"G_STRINGIFY(ID), \
(GThreadFunc)gst_harness_stress_##ID##_func, t))
#define GST_HARNESS_THREAD_END(t) \
(t->running = FALSE, \
GPOINTER_TO_UINT (g_thread_join (t->thread)))
static void
gst_harness_stress_free (GstHarnessThread * t)
{
if (t != NULL && t->freefunc != NULL)
t->freefunc (t);
}
static gpointer
gst_harness_stress_custom_func (GstHarnessThread * t)
{
GstHarnessCustomThread *ct = (GstHarnessCustomThread *) t;
guint count = 0;
if (ct->init != NULL)
ct->init (ct, ct->data);
while (t->running) {
ct->callback (ct, ct->data);
count++;
g_usleep (t->sleep);
}
return GUINT_TO_POINTER (count);
}
static gpointer
gst_harness_stress_statechange_func (GstHarnessThread * t)
{
guint count = 0;
while (t->running) {
GstClock *clock = gst_element_get_clock (t->h->element);
GstIterator *it;
gboolean done = FALSE;
gboolean change;
change = gst_element_set_state (t->h->element, GST_STATE_NULL);
g_assert (change == GST_STATE_CHANGE_SUCCESS);
g_thread_yield ();
it = gst_element_iterate_sink_pads (t->h->element);
while (!done) {
GValue item = G_VALUE_INIT;
switch (gst_iterator_next (it, &item)) {
case GST_ITERATOR_OK:
{
GstPad *sinkpad = g_value_get_object (&item);
GstPad *srcpad = gst_pad_get_peer (sinkpad);
if (srcpad != NULL) {
gst_pad_unlink (srcpad, sinkpad);
gst_pad_link (srcpad, sinkpad);
gst_object_unref (srcpad);
}
g_value_reset (&item);
break;
}
case GST_ITERATOR_RESYNC:
gst_iterator_resync (it);
break;
case GST_ITERATOR_ERROR:
g_assert_not_reached ();
case GST_ITERATOR_DONE:
done = TRUE;
break;
}
g_value_unset (&item);
}
gst_iterator_free (it);
if (clock != NULL) {
gst_element_set_clock (t->h->element, clock);
gst_object_unref (clock);
}
change = gst_element_set_state (t->h->element, GST_STATE_PLAYING);
g_assert (change == GST_STATE_CHANGE_SUCCESS);
count++;
g_usleep (t->sleep);
}
return GUINT_TO_POINTER (count);
}
static gpointer
gst_harness_stress_buffer_func (GstHarnessThread * t)
{
GstHarnessPushBufferThread *pt = (GstHarnessPushBufferThread *) t;
guint count = 0;
gchar *sid;
gboolean handled;
/* Push stream start, caps and segment events */
sid = g_strdup_printf ("%s-%p", GST_OBJECT_NAME (t->h->element), t->h);
handled = gst_pad_push_event (t->h->srcpad, gst_event_new_stream_start (sid));
g_assert (handled);
g_free (sid);
handled = gst_pad_push_event (t->h->srcpad, gst_event_new_caps (pt->caps));
g_assert (handled);
handled = gst_pad_push_event (t->h->srcpad,
gst_event_new_segment (&pt->segment));
g_assert (handled);
while (t->running) {
gst_harness_push (t->h, pt->func (t->h, pt->data));
count++;
g_usleep (t->sleep);
}
return GUINT_TO_POINTER (count);
}
static gpointer
gst_harness_stress_event_func (GstHarnessThread * t)
{
GstHarnessPushEventThread *pet = (GstHarnessPushEventThread *) t;
guint count = 0;
while (t->running) {
gst_harness_push_event (t->h, pet->func (t->h, pet->data));
count++;
g_usleep (t->sleep);
}
return GUINT_TO_POINTER (count);
}
static gpointer
gst_harness_stress_upstream_event_func (GstHarnessThread * t)
{
GstHarnessPushEventThread *pet = (GstHarnessPushEventThread *) t;
guint count = 0;
while (t->running) {
gst_harness_push_upstream_event (t->h, pet->func (t->h, pet->data));
count++;
g_usleep (t->sleep);
}
return GUINT_TO_POINTER (count);
}
static gpointer
gst_harness_stress_property_func (GstHarnessThread * t)
{
GstHarnessPropThread *pt = (GstHarnessPropThread *) t;
guint count = 0;
while (t->running) {
GValue value = G_VALUE_INIT;
g_object_set_property (G_OBJECT (t->h->element), pt->name, &pt->value);
g_value_init (&value, G_VALUE_TYPE (&pt->value));
g_object_get_property (G_OBJECT (t->h->element), pt->name, &value);
g_value_reset (&value);
count++;
g_usleep (t->sleep);
}
return GUINT_TO_POINTER (count);
}
static gpointer
gst_harness_stress_requestpad_func (GstHarnessThread * t)
{
GstHarnessReqPadThread *rpt = (GstHarnessReqPadThread *) t;
guint count = 0;
while (t->running) {
GstPad *reqpad;
if (rpt->release)
gst_harness_requestpad_release_pads (rpt);
g_thread_yield ();
reqpad = gst_element_request_pad (t->h->element,
rpt->templ, rpt->name, rpt->caps);
g_assert (reqpad != NULL);
rpt->pads = g_slist_prepend (rpt->pads, reqpad);
count++;
g_usleep (t->sleep);
}
return GUINT_TO_POINTER (count);
}
/**
* gst_harness_stress_thread_stop:
* @t: a #GstHarnessThread
*
* Stop the running #GstHarnessThread
*
* MT safe.
*
* Since: 1.6
*/
guint
gst_harness_stress_thread_stop (GstHarnessThread * t)
{
guint ret;
g_return_val_if_fail (t != NULL, 0);
ret = GST_HARNESS_THREAD_END (t);
g_ptr_array_remove (t->h->priv->stress, t);
return ret;
}
/**
* gst_harness_stress_custom_start: (skip)
* @h: a #GstHarness
* @init: (allow-none): a #GFunc that is called initially and only once
* @callback: a #GFunc that is called as often as possible
* @data: a #gpointer with custom data to pass to the @callback function
* @sleep: a #gulong specifying how long to sleep in (microseconds) for
* each call to the @callback
*
* Start a custom stress-thread that will call your @callback for every
* iteration allowing you to do something nasty.
*
* MT safe.
*
* Returns: a #GstHarnessThread
*
* Since: 1.6
*/
GstHarnessThread *
gst_harness_stress_custom_start (GstHarness * h,
GFunc init, GFunc callback, gpointer data, gulong sleep)
{
GstHarnessCustomThread *t = g_slice_new0 (GstHarnessCustomThread);
gst_harness_thread_init (&t->t,
(GDestroyNotify) gst_harness_custom_thread_free, h, sleep);
t->init = init;
t->callback = callback;
t->data = data;
GST_HARNESS_THREAD_START (custom, t);
return &t->t;
}
/**
* gst_harness_stress_statechange_start_full: (skip)
* @h: a #GstHarness
* @sleep: a #gulong specifying how long to sleep in (microseconds) for
* each state-change
*
* Change the state of your harnessed #GstElement from NULL to PLAYING and
* back again, only pausing for @sleep microseconds every time.
*
* MT safe.
*
* Returns: a #GstHarnessThread
*
* Since: 1.6
*/
GstHarnessThread *
gst_harness_stress_statechange_start_full (GstHarness * h, gulong sleep)
{
GstHarnessThread *t = g_slice_new0 (GstHarnessThread);
gst_harness_thread_init (t,
(GDestroyNotify) gst_harness_thread_free, h, sleep);
GST_HARNESS_THREAD_START (statechange, t);
return t;
}
static GstBuffer *
gst_harness_ref_buffer (GstHarness * h, gpointer data)
{
(void) h;
return gst_buffer_ref (GST_BUFFER_CAST (data));
}
static GstEvent *
gst_harness_ref_event (GstHarness * h, gpointer data)
{
(void) h;
return gst_event_ref (GST_EVENT_CAST (data));
}
/**
* gst_harness_stress_push_buffer_start_full: (skip)
* @h: a #GstHarness
* @caps: a #GstCaps for the #GstBuffer
* @segment: a #GstSegment
* @buf: a #GstBuffer to push
* @sleep: a #gulong specifying how long to sleep in (microseconds) for
* each call to gst_pad_push
*
* Push a #GstBuffer in intervals of @sleep microseconds.
*
* MT safe.
*
* Returns: a #GstHarnessThread
*
* Since: 1.6
*/
GstHarnessThread *
gst_harness_stress_push_buffer_start_full (GstHarness * h,
GstCaps * caps, const GstSegment * segment, GstBuffer * buf, gulong sleep)
{
return gst_harness_stress_push_buffer_with_cb_start_full (h, caps, segment,
gst_harness_ref_buffer, gst_buffer_ref (buf),
(GDestroyNotify) gst_buffer_unref, sleep);
}
/**
* gst_harness_stress_push_buffer_with_cb_start_full: (skip)
* @h: a #GstHarness
* @caps: a #GstCaps for the #GstBuffer
* @segment: a #GstSegment
* @func: a #GstHarnessPrepareBufferFunc function called before every iteration
* to prepare / create a #GstBuffer for pushing
* @data: a #gpointer with data to the #GstHarnessPrepareBufferFunc function
* @notify: a #GDestroyNotify that is called when thread is stopped
* @sleep: a #gulong specifying how long to sleep in (microseconds) for
* each call to gst_pad_push
*
* Push a #GstBuffer returned by @func in intervals of @sleep microseconds.
*
* MT safe.
*
* Returns: a #GstHarnessThread
*
* Since: 1.6
*/
GstHarnessThread *
gst_harness_stress_push_buffer_with_cb_start_full (GstHarness * h,