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90 lines
3.5 KiB
C
90 lines
3.5 KiB
C
/*
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* GStreamer gstreamer-aesdec
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*
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* Copyright, LCC (C) 2015 RidgeRun, LCC <carsten.behling@ridgerun.com>
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* Copyright, 2020 Nice, Contact: Rabindra Harlalka <Rabindra.Harlalka@nice.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* Alternatively, the contents of this file may be used under the
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* GNU Lesser General Public License Version 2.1 (the "LGPL"), in
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* which case the following provisions apply instead of the ones
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* mentioned above:
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1335, USA.
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*/
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#ifndef __GST_AES_DEC_H__
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#define __GST_AES_DEC_H__
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#include "gstaeshelper.h"
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#include <gst/base/gstbasetransform.h>
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G_BEGIN_DECLS
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#define GST_TYPE_AES_DEC (gst_aes_dec_get_type())
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G_DECLARE_FINAL_TYPE (GstAesDec, gst_aes_dec, GST, AES_DEC, GstBaseTransform)
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#define GST_AES_DEC(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AES_DEC,GstAesDec))
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#define GST_AES_DEC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_AES_DEC,GstAesDecClass))
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#define GST_AES_DEC_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), GST_TYPE_AES_DEC,GstAesDecClass))
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#define GST_IS_AES_DEC(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AES_DEC))
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#define GST_IS_AES_DEC_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_AES_DEC))
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struct _GstAesDec
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{
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GstBaseTransform element;
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/* Properties */
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GstAesCipher cipher;
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guchar key[EVP_MAX_KEY_LENGTH];
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guchar iv[GST_AES_BLOCK_SIZE];
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gboolean serialize_iv;
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gboolean per_buffer_padding;
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/* Element variables */
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const EVP_CIPHER *evp_cipher;
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EVP_CIPHER_CTX *evp_ctx;
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gboolean awaiting_first_buffer;
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GMutex decoder_lock;
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/* if TRUE, then properties cannot be changed */
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gboolean locked_properties;
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};
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struct _GstAesDecClass
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{
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GstBaseTransformClass parent_class;
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};
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GST_ELEMENT_REGISTER_DECLARE (aesdec)
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G_END_DECLS
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#endif /* __GST_AES_DEC_H__ */
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