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protection: add GstProtectionMeta to support protected content

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In order to support some types of protected streams (such as those
protected using DASH Common Encryption) some per-buffer information
needs to be passed between elements.

This commit adds a GstMeta type called GstProtectionMeta that allows
protection specific information to be added to a GstBuffer. An example
of its usage is qtdemux providing information to each output sample
that enables a downstream element to decrypt it.

This commit adds a utility function to select a supported protection
system from the installed Decryption elements found in the registry.
The gst_protection_select_system function that takes an array of
identifiers and searches the registry for a element of klass Decryptor that
supports one or more of the supplied identifiers. If multiple elements
are found, the one with the highest rank is selected.

This commit adds a unit test for the gst_protection_select_system
function that adds a fake Decryptor element to the registry and then
checks that it can correctly be selected by the utility function.

This commit adds a unit test for GstProtectionMeta that creates
GstProtectionMeta and adds & removes it from a buffer and performs some
simple reference count checks.

API: gst_buffer_add_protection_meta()
API: gst_buffer_get_protection_meta()
API: gst_protection_select_system()
API: gst_protection_meta_api_get_type()
API: gst_protection_meta_get_info()

https://bugzilla.gnome.org/show_bug.cgi?id=705991
This commit is contained in:
Alex Ashley 2015-04-15 15:33:31 +01:00 committed by Tim-Philipp Müller
parent 0f36b16a29
commit abdafb0d64
11 changed files with 607 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
docs/gst/gstreamer-docs.sgml
View file

@ -95,6 +95,7 @@ Windows. It is released under the GNU Library General Public License
<xi:include href="xml/gstpluginfeature.xml" />
<xi:include href="xml/gstpoll.xml" />
<xi:include href="xml/gstpreset.xml" />
<xi:include href="xml/gstprotection.xml" />
<xi:include href="xml/gstquery.xml" />
<xi:include href="xml/gstregistry.xml" />
<xi:include href="xml/gstsegment.xml" />

13
docs/gst/gstreamer-sections.txt
View file

@ -2305,6 +2305,19 @@ GST_PRESET_GET_INTERFACE
gst_preset_get_type
</SECTION>
<SECTION>
<FILE>gstprotection</FILE>
<INCLUDE>gst/gstprotection.h</INCLUDE>
GstProtectionMeta
gst_buffer_add_protection_meta
gst_buffer_get_protection_meta
gst_protection_select_system
<SUBSECTION Standard>
GST_PROTECTION_META_API_TYPE
GST_PROTECTION_META_INFO
gst_protection_meta_get_info
</SECTION>
<SECTION>
<FILE>gstquery</FILE>
<TITLE>GstQuery</TITLE>

2
gst/Makefile.am
View file

@ -99,6 +99,7 @@ libgstreamer_@GST_API_VERSION@_la_SOURCES = \
gstpluginloader.c \
gstpoll.c \
gstpreset.c \
gstprotection.c \
gstquark.c \
gstquery.c \
gstregistry.c \
@ -204,6 +205,7 @@ gst_headers = \
gstpluginfeature.h \
gstpoll.h \
gstpreset.h \
gstprotection.h \
gstquery.h \
gstsample.h \
gstsegment.h \

4
gst/gst_private.h
View file

@ -254,6 +254,9 @@ GST_EXPORT GstDebugCategory *GST_CAT_CONTEXT;
#define GST_CAT_POLL _priv_GST_CAT_POLL
extern GstDebugCategory *_priv_GST_CAT_POLL;
#define GST_CAT_PROTECTION _priv_GST_CAT_PROTECTION
extern GstDebugCategory *_priv_GST_CAT_PROTECTION;
extern GstClockTime _priv_gst_info_start_time;
#else
@ -293,6 +296,7 @@ extern GstClockTime _priv_gst_info_start_time;
#define GST_CAT_META NULL
#define GST_CAT_LOCKING NULL
#define GST_CAT_CONTEXT NULL
#define GST_CAT_PROTECTION NULL
#endif

3
gst/gstinfo.c
View file

@ -176,6 +176,7 @@ GstDebugCategory *_priv_GST_CAT_POLL = NULL;
GstDebugCategory *GST_CAT_META = NULL;
GstDebugCategory *GST_CAT_LOCKING = NULL;
GstDebugCategory *GST_CAT_CONTEXT = NULL;
GstDebugCategory *_priv_GST_CAT_PROTECTION = NULL;
#endif /* !defined(GST_DISABLE_GST_DEBUG) || !defined(GST_REMOVE_DISABLED) */
@ -390,6 +391,8 @@ _priv_gst_debug_init (void)
GST_CAT_META = _gst_debug_category_new ("GST_META", 0, "meta");
GST_CAT_LOCKING = _gst_debug_category_new ("GST_LOCKING", 0, "locking");
GST_CAT_CONTEXT = _gst_debug_category_new ("GST_CONTEXT", 0, NULL);
_priv_GST_CAT_PROTECTION =
_gst_debug_category_new ("GST_PROTECTION", 0, "protection");
/* print out the valgrind message if we're in valgrind */
_priv_gst_in_valgrind ();

209
gst/gstprotection.c Normal file
View file

@ -0,0 +1,209 @@
/* GStreamer
* Copyright (C) <2013> YouView TV Ltd.
*
* 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.
*/
/**
* SECTION:gstprotection
* @short_description: Functions and classes to support encrypted streams.
*
* The GstProtectionMeta class enables the information needed to decrypt a
* #GstBuffer to be attached to that buffer.
*
* Typically, a demuxer element would attach GstProtectionMeta objects
* to the buffers that it pushes downstream. The demuxer would parse the
* protection information for a video/audio frame from its input data and use
* this information to populate the #GstStructure @info field,
* which is then encapsulated in a GstProtectionMeta object and attached to
* the corresponding output buffer using the gst_buffer_add_protection_meta()
* function. The information in this attached GstProtectionMeta would be
* used by a downstream decrypter element to recover the original unencrypted
* frame.
*
* Since: 1.6
*/
#include "gst_private.h"
#include "glib-compat-private.h"
#include "gstprotection.h"
#define GST_CAT_DEFAULT GST_CAT_PROTECTION
static gboolean gst_protection_meta_init (GstMeta * meta, gpointer params,
GstBuffer * buffer);
static void gst_protection_meta_free (GstMeta * meta, GstBuffer * buffer);
static const gchar *gst_protection_factory_check (GstElementFactory * fact,
const gchar ** system_identifiers);
GType
gst_protection_meta_api_get_type (void)
{
static volatile GType type;
static const gchar *tags[] = { NULL };
if (g_once_init_enter (&type)) {
GType _type = gst_meta_api_type_register ("GstProtectionMetaAPI", tags);
g_once_init_leave (&type, _type);
}
return type;
}
static gboolean
gst_protection_meta_init (GstMeta * meta, gpointer params, GstBuffer * buffer)
{
GstProtectionMeta *protection_meta = (GstProtectionMeta *) meta;
protection_meta->info = NULL;
return TRUE;
}
static void
gst_protection_meta_free (GstMeta * meta, GstBuffer * buffer)
{
GstProtectionMeta *protection_meta = (GstProtectionMeta *) meta;
if (protection_meta->info)
gst_structure_free (protection_meta->info);
}
const GstMetaInfo *
gst_protection_meta_get_info (void)
{
static const GstMetaInfo *protection_meta_info = NULL;
if (g_once_init_enter (&protection_meta_info)) {
const GstMetaInfo *meta =
gst_meta_register (GST_PROTECTION_META_API_TYPE, "GstProtectionMeta",
sizeof (GstProtectionMeta), gst_protection_meta_init,
gst_protection_meta_free,
(GstMetaTransformFunction) NULL);
g_once_init_leave (&protection_meta_info, meta);
}
return protection_meta_info;
}
/**
* gst_buffer_add_protection_meta:
* @buffer: #GstBuffer holding an encrypted sample, to which protection
* metadata should be added.
* @info: (transfer full): a #GstStructure holding cryptographic
* information relating to the sample contained in @buffer. This
* function takes ownership of @info.
*
* Attaches protection metadata to a #GstBuffer.
*
* Returns: a pointer to the added #GstProtectionMeta if successful; %NULL if
* unsuccessful.
*
* Since: 1.6
*/
GstProtectionMeta *
gst_buffer_add_protection_meta (GstBuffer * buffer, GstStructure * info)
{
GstProtectionMeta *meta;
g_return_val_if_fail (GST_IS_BUFFER (buffer), NULL);
g_return_val_if_fail (info != NULL, NULL);
meta =
(GstProtectionMeta *) gst_buffer_add_meta (buffer,
GST_PROTECTION_META_INFO, NULL);
meta->info = info;
return meta;
}
/**
* gst_protection_select_system:
* @system_identifiers: (transfer none): A null terminated array of strings
* that contains the UUID values of each protection system that is to be
* checked.
*
* Iterates the supplied list of UUIDs and checks the GstRegistry for
* an element that supports one of the supplied UUIDs. If more than one
* element matches, the system ID of the highest ranked element is selected.
*
* Returns: (transfer none): One of the strings from @system_identifiers that
* indicates the highest ranked element that implements the protection system
* indicated by that system ID, or %NULL if no element has been found.
*
* Since: 1.6
*/
const gchar *
gst_protection_select_system (const gchar ** system_identifiers)
{
GList *decryptors, *walk;
const gchar *retval = NULL;
decryptors =
gst_element_factory_list_get_elements (GST_ELEMENT_FACTORY_TYPE_DECRYPTOR,
GST_RANK_MARGINAL);
for (walk = decryptors; !retval && walk; walk = g_list_next (walk)) {
GstElementFactory *fact = (GstElementFactory *) walk->data;
retval = gst_protection_factory_check (fact, system_identifiers);
}
gst_plugin_feature_list_free (decryptors);
return retval;
}
static const gchar *
gst_protection_factory_check (GstElementFactory * fact,
const gchar ** system_identifiers)
{
const GList *template, *walk;
const gchar *retval = NULL;
template = gst_element_factory_get_static_pad_templates (fact);
for (walk = template; walk && !retval; walk = g_list_next (walk)) {
GstStaticPadTemplate *templ = walk->data;
GstCaps *caps = gst_static_pad_template_get_caps (templ);
guint leng = gst_caps_get_size (caps);
for (guint i = 0; !retval && i < leng; ++i) {
GstStructure *st;
st = gst_caps_get_structure (caps, i);
if (gst_structure_has_field_typed (st, PROTECTION_SYSTEM_ID_CAPS_FIELD,
G_TYPE_STRING)) {
const gchar *sys_id =
gst_structure_get_string (st, PROTECTION_SYSTEM_ID_CAPS_FIELD);
GST_DEBUG ("Found decryptor that supports protection system %s",
sys_id);
for (guint j = 0; !retval && system_identifiers[j]; ++j) {
GST_TRACE (" compare with %s", system_identifiers[j]);
if (g_ascii_strcasecmp (system_identifiers[j], sys_id) == 0) {
GST_DEBUG (" Selecting %s", system_identifiers[j]);
retval = system_identifiers[j];
}
}
}
}
gst_caps_unref (caps);
}
return retval;
}

64
gst/gstprotection.h Normal file
View file

@ -0,0 +1,64 @@
/* GStreamer
* Copyright (C) <2015> YouView TV Ltd.
*
* 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.
*/
#ifndef __GST_PROTECTION_H__
#define __GST_PROTECTION_H__
#include <gst/gst.h>
G_BEGIN_DECLS
/* @PROTECTION_SYSTEM_ID_CAPS_FIELD: The field name in a GstCaps that is
* used to signal the UUID of the protection system
*/
#define PROTECTION_SYSTEM_ID_CAPS_FIELD "protection-system"
typedef struct _GstProtectionMeta GstProtectionMeta;
/**
* GstProtectionMeta:
* @meta: the parent #GstMeta.
* @info: the cryptographic information needed to decrypt the sample.
*
* Metadata type that holds information about a sample from a protection-protected
* track, including the information needed to decrypt it (if it is encrypted).
*/
struct _GstProtectionMeta
{
GstMeta meta;
GstStructure *info;
};
GType gst_protection_meta_api_get_type (void);
#define GST_PROTECTION_META_API_TYPE (gst_protection_meta_api_get_type())
#define gst_buffer_get_protection_meta(b) \
((GstProtectionMeta*)gst_buffer_get_meta ((b), GST_PROTECTION_META_API_TYPE))
#define GST_PROTECTION_META_INFO (gst_protection_meta_get_info())
const GstMetaInfo *gst_protection_meta_get_info (void);
GstProtectionMeta *gst_buffer_add_protection_meta (GstBuffer * buffer,
GstStructure * info);
const gchar *gst_protection_select_system (const gchar ** system_identifiers);
G_END_DECLS
#endif /* __GST_PROTECTION_META_H__ */

2
tests/check/Makefile.am
View file

@ -75,6 +75,7 @@ REGISTRY_CHECKS = \
gst/gstghostpad \
gst/gstplugin \
gst/gstpreset \
gst/gstprotection \
gst/gstquery \
gst/gstregistry \
gst/gsturi \
@ -131,6 +132,7 @@ check_PROGRAMS = \
gst/gstparamspecs \
gst/gstpipeline \
gst/gstpoll \
gst/gstprotection \
$(PRINTF_CHECKS) \
gst/gstsegment \
gst/gstsystemclock \

1
tests/check/gst/.gitignore vendored
View file

@ -35,6 +35,7 @@ gstplugin
gstpoll
gstpreset
gstprintf
gstprotection
gstregistry
gstsegment
gststructure

304
tests/check/gst/gstprotection.c Normal file
View file

@ -0,0 +1,304 @@
/* GStreamer
*
* Unit tests for protection library.
*
* Copyright (C) <2015> YouView TV Ltd.
*
* 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.
*/
#include <gst/check/gstcheck.h>
#include <gst/gstprotection.h>
#ifndef GST_PACKAGE_NAME
#define GST_PACKAGE_NAME "gstreamer"
#endif
#ifndef GST_PACKAGE_ORIGIN
#define GST_PACKAGE_ORIGIN "https://developer.gnome.org/gstreamer/"
#endif
static GType gst_protection_test_get_type (void);
#define GST_TYPE_PROTECTION_TEST (gst_protection_test_get_type ())
#define GST_PROTECTION_TEST(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_PROTECTION_TEST, GstProtectionTest))
#define GST_PROTECTION_TEST_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_PROTECTION_TEST, GstProtectionTestClass))
#define GST_IS_PROTECTION_TEST(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_PROTECTION_TEST))
#define GST_IS_PROTECTION_TEST_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_PROTECTION_TEST))
#define GST_PROTECTION_TEST_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_PROTECTION_TEST, GstProtectionTestClass))
#define GST_PROTECTION_TEST_NAME "protection-test"
#define CLEARKEY_SYSTEM_ID "78f32170-d883-11e0-9572-0800200c9a66"
typedef struct _GstProtectionTest
{
GstElement parent;
gint test;
} GstProtectionTest;
typedef struct _GstProtectionTestClass
{
GstElementClass parent_class;
} GstProtectionTestClass;
typedef struct _PluginInitContext
{
const gchar *name;
guint rank;
GType type;
} PluginInitContext;
static GstStaticPadTemplate gst_decrypt_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS
("application/x-cenc, original-media-type=(string)video/x-h264, "
PROTECTION_SYSTEM_ID_CAPS_FIELD "=(string)" CLEARKEY_SYSTEM_ID)
);
static void
gst_protection_test_class_init (GObjectClass * klass)
{
}
static void
gst_protection_test_base_init (GstProtectionTestClass * klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_decrypt_sink_template));
gst_element_class_set_metadata (element_class,
"Decryptor element for unit tests",
GST_ELEMENT_FACTORY_KLASS_DECRYPTOR,
"Use in unit tests", "Alex Ashley <alex.ashley@youview.com>");
}
static GType
gst_protection_test_get_type (void)
{
static volatile gsize protection_test_type = 0;
if (g_once_init_enter (&protection_test_type)) {
GType type;
const GTypeInfo info = {
sizeof (GstProtectionTestClass),
(GBaseInitFunc) gst_protection_test_base_init, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) gst_protection_test_class_init, /* class_init */
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GstProtectionTest),
0, /* n_preallocs */
NULL, /* instance_init */
NULL /* value_table */
};
type =
g_type_register_static (GST_TYPE_ELEMENT, "GstProtectionTest", &info,
0);
g_once_init_leave (&protection_test_type, type);
}
return protection_test_type;
}
static gboolean
protection_plugin_init_func (GstPlugin * plugin, gpointer user_data)
{
PluginInitContext *context = (PluginInitContext *) user_data;
gboolean ret;
ret =
gst_element_register (plugin, context->name, context->rank,
context->type);
return ret;
}
static gboolean
protection_create_plugin (GstRegistry * registry, const gchar * name,
GType type)
{
gboolean ret;
PluginInitContext context;
context.name = name;
context.rank = GST_RANK_MARGINAL;
context.type = type;
ret = gst_plugin_register_static_full (GST_VERSION_MAJOR, /* version */
GST_VERSION_MINOR, /* version */
name, /* name */
"Protection unit test", /* description */
protection_plugin_init_func, /* init function */
"0.0.0", /* version string */
GST_LICENSE_UNKNOWN, /* license */
__FILE__, /* source */
GST_PACKAGE_NAME, /* package */
GST_PACKAGE_ORIGIN, /* origin */
&context /* user_data */
);
return ret;
}
static void
test_setup (void)
{
GstRegistry *registry;
registry = gst_registry_get ();
protection_create_plugin (registry, GST_PROTECTION_TEST_NAME,
GST_TYPE_PROTECTION_TEST);
}
static void
test_teardown (void)
{
}
GST_START_TEST (test_decryptor_element_class)
{
GstElement *elem;
const gchar *selected_id;
const gchar *sys_ids[] = {
CLEARKEY_SYSTEM_ID,
"69f908af-4816-46ea-910c-cd5dcccb0a3a",
"5e629af5-38da-4063-8977-97ffbd9902d4",
NULL
};
#ifdef DEBUG_PLUGINS
GList *list, *walk;
list = gst_registry_get_plugin_list (gst_registry_get ());
for (walk = list; walk; walk = g_list_next (walk)) {
GstPlugin *plugin = (GstPlugin *) walk->data;
g_print ("Element %s\n", gst_plugin_get_name (plugin));
}
#endif
elem = gst_element_factory_make (GST_PROTECTION_TEST_NAME, NULL);
fail_unless (GST_IS_ELEMENT (elem));
selected_id = gst_protection_select_system (sys_ids);
fail_if (selected_id == NULL);
selected_id = gst_protection_select_system (&sys_ids[1]);
fail_unless (selected_id == NULL);
selected_id = gst_protection_select_system (&sys_ids[3]);
fail_unless (selected_id == NULL);
}
GST_END_TEST;
GST_START_TEST (test_protection_metadata)
{
GstBuffer *buf = NULL;
GstBuffer *iv, *kid;
GstBuffer *fetched_iv = NULL, *fetched_key_id = NULL;
GstStructure *meta_info;
GstProtectionMeta *meta = NULL;
const GstMetaInfo *info = NULL;
const GValue *value;
/* Check correct type info is returned */
info = gst_protection_meta_get_info ();
fail_unless (info != NULL);
fail_unless (info->api == GST_PROTECTION_META_API_TYPE);
iv = gst_buffer_new_allocate (NULL, 16, NULL);
gst_buffer_memset (iv, 0, 'i', 16);
ASSERT_MINI_OBJECT_REFCOUNT (iv, "iv", 1);
kid = gst_buffer_new_allocate (NULL, 16, NULL);
gst_buffer_memset (kid, 0, 'k', 16);
ASSERT_MINI_OBJECT_REFCOUNT (kid, "kid", 1);
meta_info = gst_structure_new ("application/x-cenc",
"encrypted", G_TYPE_BOOLEAN, TRUE,
"iv", GST_TYPE_BUFFER, iv,
"iv_size", G_TYPE_UINT, 16, "kid", GST_TYPE_BUFFER, kid, NULL);
ASSERT_MINI_OBJECT_REFCOUNT (kid, "kid", 2);
ASSERT_MINI_OBJECT_REFCOUNT (iv, "iv", 2);
buf = gst_buffer_new_allocate (NULL, 1024, NULL);
/* Test attaching protection metadata to buffer */
meta = gst_buffer_add_protection_meta (buf, meta_info);
fail_unless (meta != NULL);
/* gst_buffer_new_allocate takes ownership of info GstStructure */
ASSERT_MINI_OBJECT_REFCOUNT (buf, "Buffer", 1);
/* Test detaching protection metadata from buffer, and check that
* contained data is correct */
meta = NULL;
meta = gst_buffer_get_protection_meta (buf);
fail_unless (meta != NULL);
ASSERT_MINI_OBJECT_REFCOUNT (buf, "Buffer", 1);
value = gst_structure_get_value (meta->info, "iv");
fail_unless (value != NULL);
fetched_iv = gst_value_get_buffer (value);
fail_unless (fetched_iv != NULL);
fail_unless (gst_buffer_get_size (fetched_iv) == 16);
value = gst_structure_get_value (meta->info, "kid");
fail_unless (value != NULL);
fetched_key_id = gst_value_get_buffer (value);
fail_unless (fetched_key_id != NULL);
fail_unless (gst_buffer_get_size (fetched_key_id) == 16);
gst_buffer_remove_meta (buf, (GstMeta *) meta);
/* Check that refcounts are decremented after metadata is freed */
ASSERT_MINI_OBJECT_REFCOUNT (buf, "Buffer", 1);
ASSERT_MINI_OBJECT_REFCOUNT (iv, "IV", 1);
ASSERT_MINI_OBJECT_REFCOUNT (kid, "KID", 1);
gst_buffer_unref (buf);
gst_buffer_unref (iv);
gst_buffer_unref (kid);
}
GST_END_TEST;
static Suite *
protection_suite (void)
{
Suite *s = suite_create ("protection library");
TCase *tc_chain = tcase_create ("general");
suite_add_tcase (s, tc_chain);
tcase_add_test (tc_chain, test_decryptor_element_class);
tcase_add_test (tc_chain, test_protection_metadata);
tcase_add_unchecked_fixture (tc_chain, test_setup, test_teardown);
return s;
}
int
main (int argc, char **argv)
{
int nf;
Suite *s = protection_suite ();
SRunner *sr = srunner_create (s);
gst_check_init (&argc, &argv);
srunner_run_all (sr, CK_NORMAL);
nf = srunner_ntests_failed (sr);
srunner_free (sr);
return nf;
}

4
win32/common/libgstreamer.def
View file

@ -112,6 +112,7 @@ EXPORTS
gst_bin_sync_children_states
gst_bitmask_get_type
gst_buffer_add_meta
gst_buffer_add_protection_meta
gst_buffer_append
gst_buffer_append_memory
gst_buffer_append_region
@ -990,6 +991,9 @@ EXPORTS
gst_preset_set_app_dir
gst_preset_set_meta
gst_progress_type_get_type
gst_protection_meta_api_get_type
gst_protection_meta_get_info
gst_protection_select_system
gst_proxy_pad_chain_default
gst_proxy_pad_chain_list_default
gst_proxy_pad_get_internal