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/*
* GStreamer gstreamer-aesenc
*
* Copyright, LCC (C) 2015 RidgeRun, LCC <carsten.behling@ridgerun.com>
* Copyright, 2020 Nice, Contact: Rabindra Harlalka <Rabindra.Harlalka@nice.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Alternatively, the contents of this file may be used under the
* GNU Lesser General Public License Version 2.1 (the "LGPL"), in
* which case the following provisions apply instead of the ones
* mentioned above:
*
* 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 Street, Fifth Floor,
* Boston, MA 02110-1335, USA.
*/
#ifndef __GST_AES_ENC_H__
#define __GST_AES_ENC_H__
#include "gstaeshelper.h"
#include <gst/base/gstbasetransform.h>
G_BEGIN_DECLS
#define GST_TYPE_AES_ENC (gst_aes_enc_get_type())
G_DECLARE_FINAL_TYPE (GstAesEnc, gst_aes_enc, GST, AES_ENC, GstBaseTransform)
#define GST_AES_ENC(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AES_ENC,GstAesEnc))
#define GST_AES_ENC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_AES_ENC,GstAesEncClass))
#define GST_AES_ENC_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), GST_TYPE_AES_ENC,GstAesEncClass))
#define GST_IS_AES_ENC(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AES_ENC))
#define GST_IS_AES_ENC_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_AES_ENC))
struct _GstAesEnc
{
GstBaseTransform element;
/* Properties */
GstAesCipher cipher;
guchar key[EVP_MAX_KEY_LENGTH];
guchar iv[GST_AES_BLOCK_SIZE];
gboolean serialize_iv;
gboolean per_buffer_padding;
/* Element variables */
const EVP_CIPHER *evp_cipher;
EVP_CIPHER_CTX *evp_ctx;
guchar padding;
guchar padded_block[GST_AES_BLOCK_SIZE];
gboolean awaiting_first_buffer;
GMutex encoder_lock;
/* if TRUE, then properties cannot be changed */
gboolean locked_properties;
};
struct _GstAesEncClass
{
GstBaseTransformClass parent_class;
};
GST_ELEMENT_REGISTER_DECLARE (aesenc)
G_END_DECLS
#endif /* __GST_AES_ENC_H__ */
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