/* 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

/**

 * GST_PROTECTION_SYSTEM_ID_CAPS_FIELD:

 *

 * The field name in a GstCaps that is used to signal the UUID of the protection

 * system.

 *

 * Since: 1.6

 */

#define GST_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).

 *

 * Since: 1.6

 */

struct _GstProtectionMeta

{

  GstMeta meta;

  GstStructure *info;

};

GST_API

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())

GST_API

const GstMetaInfo * gst_protection_meta_get_info (void);

GST_API

GstProtectionMeta * gst_buffer_add_protection_meta (GstBuffer * buffer,

                                                    GstStructure * info);

GST_API

const gchar * gst_protection_select_system (const gchar ** system_identifiers);

GST_API

gchar ** gst_protection_filter_systems_by_available_decryptors (

    const gchar ** system_identifiers);

G_END_DECLS

#endif /* __GST_PROTECTION_META_H__ */