/*
* SegmentChunk.cpp
*****************************************************************************
* Copyright (C) 2014 - 2015 VideoLAN Authors
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This program 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "SegmentChunk.hpp"
#include "Segment.h"
#include "BaseRepresentation.h"
#include "../encryption/CommonEncryption.hpp"
#include <vlc_block.h>
#include <cassert>
using namespace adaptive::playlist;
using namespace adaptive::encryption;
using namespace adaptive;
SegmentChunk::SegmentChunk(AbstractChunkSource *source, BaseRepresentation *rep_) :
AbstractChunk(source)
{
rep = rep_;
encryptionSession = nullptr;
discontinuity = false;
discontinuitySequenceNumber = 0;
}
SegmentChunk::~SegmentChunk()
{
delete encryptionSession;
}
bool SegmentChunk::decrypt(block_t **pp_block)
{
block_t *p_block = *pp_block;
if(encryptionSession)
{
bool b_last = !hasMoreData();
p_block->i_buffer = encryptionSession->decrypt(p_block->p_buffer,
p_block->i_buffer, b_last);
if(b_last)
encryptionSession->close();
}
return true;
}
void SegmentChunk::onDownload(block_t **pp_block)
{
decrypt(pp_block);
}
StreamFormat SegmentChunk::getStreamFormat() const
{
return (format == StreamFormat() && rep) ? rep->getStreamFormat() : format;
}
void SegmentChunk::setStreamFormat(const StreamFormat &f)
{
format = f;
}
void SegmentChunk::setEncryptionSession(CommonEncryptionSession *s)
{
delete encryptionSession;
encryptionSession = s;
}
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