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/* 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"
/**
* GST_PROTECTION_UNSPECIFIED_SYSTEM_ID:
*
* The protection system value of the unspecified UUID.
* In some cases the system protection ID is not present in the contents or in their
* metadata, as encrypted WebM.
* This define is used to set the value of the "system_id" field in GstProtectionEvent,
* with this value, the application will use an external information to choose which
* protection system to use.
*
* Example: The matroskademux uses this value in the case of encrypted WebM,
* the application will choose the appropriate protection system based on the information
* received through EME API.
*
* Since: 1.16
*/
#define GST_PROTECTION_UNSPECIFIED_SYSTEM_ID "unspecified-system-id"
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_protection_meta_api_get_type: (attributes doc.skip=true)
*/
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__ */
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