1/* GStreamer ClearKey common encryption decryptor
2 *
3 * Copyright (C) 2013 YouView TV Ltd. <alex.ashley@youview.com>
4 * Copyright (C) 2016 Metrological
5 * Copyright (C) 2016 Igalia S.L
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Library General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Library General Public License for more details.
16 *
17 * You should have received a copy of the GNU Library General Public
18 * License along with this library; if not, write to the
19 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
20 * Boston, MA 02110-1301, USA.
21 */
22
23#pragma once
24
25#if ENABLE(ENCRYPTED_MEDIA) && USE(GSTREAMER)
26
27#include <CDMInstance.h>
28#include <gst/base/gstbasetransform.h>
29#include <gst/gst.h>
30#include <wtf/RefPtr.h>
31
32G_BEGIN_DECLS
33
34#define WEBKIT_TYPE_MEDIA_CENC_DECRYPT (webkit_media_common_encryption_decrypt_get_type())
35#define WEBKIT_MEDIA_CENC_DECRYPT(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), WEBKIT_TYPE_MEDIA_CENC_DECRYPT, WebKitMediaCommonEncryptionDecrypt))
36#define WEBKIT_MEDIA_CENC_DECRYPT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), WEBKIT_TYPE_MEDIA_CENC_DECRYPT, WebKitMediaCommonEncryptionDecryptClass))
37#define WEBKIT_MEDIA_CENC_DECRYPT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), WEBKIT_TYPE_MEDIA_CENC_DECRYPT, WebKitMediaCommonEncryptionDecryptClass))
38
39#define WEBKIT_IS_MEDIA_CENC_DECRYPT(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), WEBKIT_TYPE_MEDIA_CENC_DECRYPT))
40#define WEBKIT_IS_MEDIA_CENC_DECRYPT_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass), WEBKIT_TYPE_MEDIA_CENC_DECRYPT))
41
42typedef struct _WebKitMediaCommonEncryptionDecrypt WebKitMediaCommonEncryptionDecrypt;
43typedef struct _WebKitMediaCommonEncryptionDecryptClass WebKitMediaCommonEncryptionDecryptClass;
44typedef struct _WebKitMediaCommonEncryptionDecryptPrivate WebKitMediaCommonEncryptionDecryptPrivate;
45
46GType webkit_media_common_encryption_decrypt_get_type(void);
47
48struct _WebKitMediaCommonEncryptionDecrypt {
49 GstBaseTransform parent;
50
51 WebKitMediaCommonEncryptionDecryptPrivate* priv;
52};
53
54struct _WebKitMediaCommonEncryptionDecryptClass {
55 GstBaseTransformClass parentClass;
56
57 const char* protectionSystemId;
58 bool (*handleKeyResponse)(WebKitMediaCommonEncryptionDecrypt*, RefPtr<WebCore::CDMInstance>);
59 bool (*decrypt)(WebKitMediaCommonEncryptionDecrypt*, GstBuffer* ivBuffer, GstBuffer* keyIDBuffer, GstBuffer* buffer, unsigned subSamplesCount, GstBuffer* subSamplesBuffer);
60};
61
62G_END_DECLS
63
64#endif // ENABLE(ENCRYPTED_MEDIA) && USE(GSTREAMER)
65