74 lines
2.5 KiB
C++
74 lines
2.5 KiB
C++
/*****************************************************************************
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* Copyright (C) 2013 x265 project
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*
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* Authors: Steve Borho <steve@borho.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA.
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*
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* This program is also available under a commercial proprietary license.
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* For more information, contact us at license @ x265.com.
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*****************************************************************************/
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#include "common.h"
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#include "bitstream.h"
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#include "slice.h"
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#include "sei.h"
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using namespace X265_NS;
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/* x265's identifying GUID */
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const uint8_t SEIuserDataUnregistered::m_uuid_iso_iec_11578[16] = {
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0x2C, 0xA2, 0xDE, 0x09, 0xB5, 0x17, 0x47, 0xDB,
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0xBB, 0x55, 0xA4, 0xFE, 0x7F, 0xC2, 0xFC, 0x4E
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};
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/* marshal a single SEI message sei, storing the marshalled representation
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* in bitstream bs */
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void SEI::write(Bitstream& bs, const SPS& sps)
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{
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BitCounter count;
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m_bitIf = &count;
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/* virtual writeSEI method, write to bit counter */
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writeSEI(sps);
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m_bitIf = &bs;
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uint32_t type = payloadType();
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for (; type >= 0xff; type -= 0xff)
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WRITE_CODE(0xff, 8, "payload_type");
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WRITE_CODE(type, 8, "payload_type");
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X265_CHECK(0 == (count.getNumberOfWrittenBits() & 7), "payload unaligned\n");
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uint32_t payloadSize = count.getNumberOfWrittenBits() >> 3;
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for (; payloadSize >= 0xff; payloadSize -= 0xff)
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WRITE_CODE(0xff, 8, "payload_size");
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WRITE_CODE(payloadSize, 8, "payload_size");
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/* virtual writeSEI method, write to bs */
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writeSEI(sps);
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}
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void SEI::writeByteAlign()
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{
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// TODO: expose bs.writeByteAlignment() as virtual function
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if (m_bitIf->getNumberOfWrittenBits() % 8 != 0)
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{
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WRITE_FLAG(1, "bit_equal_to_one");
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while (m_bitIf->getNumberOfWrittenBits() % 8 != 0)
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{
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WRITE_FLAG(0, "bit_equal_to_zero");
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}
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}
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}
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