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/*================================================================================================*\
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|| ||
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|| /$$$$$$$ /$$ /$$ /$$ /$$ ||
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|| | $$__ $$|__/ | $$ /$ | $$| $$ ||
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|| | $$ \ $$ /$$ /$$$$$$ | $$ /$$$| $$| $$$$$$$ /$$$$$$ /$$$$$$ /$$$$$$ ||
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|| | $$$$$$$ | $$ /$$__ $$ | $$/$$ $$ $$| $$__ $$ /$$__ $$ /$$__ $$ /$$__ $$ ||
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|| | $$__ $$| $$| $$ \ $$ | $$$$_ $$$$| $$ \ $$| $$ \ $$| $$ \ $$| $$ \ $$ ||
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|| | $$ \ $$| $$| $$ | $$ | $$$/ \ $$$| $$ | $$| $$ | $$| $$ | $$| $$ | $$ ||
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|| | $$$$$$$/| $$| $$$$$$$ | $$/ \ $$| $$ | $$| $$$$$$/| $$$$$$/| $$$$$$$/ ||
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|| |_______/ |__/ \____ $$ |__/ \__/|__/ |__/ \______/ \______/ | $$____/ ||
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|| /$$ \ $$ | $$ ||
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|| | $$$$$$/ | $$ ||
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|| \______/ |__/ ||
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|| DESCRIPTION: ||
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|| ------------ ||
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|| This file describes a set of function that can be used to create and manipulate ||
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|| a BigWhoop Codestream. They facilitate the assembly and parsing of the main ||
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|| header and tile bitsreams as well as read and write functions used to access ||
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|| conforming bwc datasets. ||
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|| ||
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|| -------------------------------------------------------------------------------------------- ||
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|| Copyright (c) 2023, High Performance Computing Center - University of Stuttgart ||
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|| ||
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|| Redistribution and use in source and binary forms, with or without modification, are ||
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|| permitted provided that the following conditions are met: ||
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|| ||
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|| (1) Redistributions of source code must retain the above copyright notice, this list of ||
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|| conditions and the following disclaimer. ||
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|| ||
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|| (2) Redistributions in binary form must reproduce the above copyright notice, this list ||
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|| of conditions and the following disclaimer in the documentation and/or other ||
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|| materials provided with the distribution. ||
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|| ||
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|| THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS” AND ANY EXPRESS ||
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|| OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF ||
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|| MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE ||
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|| COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, ||
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|| EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF ||
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|| SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) ||
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|| HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR ||
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|| TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, ||
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|| EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ||
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|| ||
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\*================================================================================================*/
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2023-06-20 11:43:33 +00:00
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#ifndef CODESTREAM_H
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#define CODESTREAM_H
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2024-02-22 10:27:40 +00:00
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/************************************************************************************************\
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|| _ _ _ ____ _ _ _ ___ ____ ||
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|| | |\ | | | | | | \ |___ ||
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|| | | \| |___ |___ |__| |__/ |___ ||
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|| ||
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\************************************************************************************************/
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#include "types.h"
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2024-02-22 15:25:52 +00:00
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#include "bitstream.h"
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2023-06-20 11:43:33 +00:00
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2024-02-22 10:27:40 +00:00
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/************************************************************************************************\
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|| _ _ ____ ____ ____ ____ ____ ||
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|| |\/| |__| | |__/ | | [__ ||
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|| | | | | |___ | \ |__| ___] ||
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\************************************************************************************************/
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/*----------------------------------------------------------------------------------------------*\
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! !
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! DESCRIPTION: !
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! ------------ !
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! !
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! These macros define stream manipulation operations to rewind, forward, inquire !
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2024-02-22 15:25:52 +00:00
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! the availability and get access to the current memory position of a bitstrean. !
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2024-02-22 10:27:40 +00:00
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! !
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\*----------------------------------------------------------------------------------------------*/
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#define rewind_stream(stream, delta) \
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{ \
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stream->L -= delta; \
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}
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2023-06-20 11:43:33 +00:00
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2024-02-22 10:27:40 +00:00
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#define forward_stream(stream, delta) \
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{ \
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stream->L += delta; \
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}
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2023-06-20 11:43:33 +00:00
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2024-02-22 10:27:40 +00:00
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#define get_access(stream) (uchar*)stream->memory + stream->L
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2023-06-20 11:43:33 +00:00
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2024-02-22 10:27:40 +00:00
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/************************************************************************************************\
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|| ___ _ _ ___ _ _ ____ ____ _ _ _ _ ____ ___ _ ____ _ _ ____ ||
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|| |__] | | |__] | | | |___ | | |\ | | | | | | |\ | [__ ||
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|| | |__| |__] |___ | |___ | |__| | \| |___ | | |__| | \| ___] ||
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|| ||
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\************************************************************************************************/
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2024-03-27 16:25:05 +00:00
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uchar assemble_main_header (bwc_codec *const field);
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2024-02-22 10:27:40 +00:00
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//==========|==========================|======================|======|======|=====================
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2024-03-27 16:25:05 +00:00
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uchar codestream_write_aux (bwc_span *const header,
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bwc_span *const aux);
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2024-02-22 10:27:40 +00:00
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//==========|==========================|======================|======|======|=====================
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2024-03-27 16:25:05 +00:00
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uchar codestream_write_com (bwc_span *const header,
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bwc_span *const com);
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2024-02-22 10:27:40 +00:00
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//==========|==========================|======================|======|======|=====================
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2024-03-27 16:25:05 +00:00
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bwc_span* assemble_codestream (bwc_codec *const field,
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bwc_stream *const data);
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2024-02-22 10:27:40 +00:00
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//==========|==========================|======================|======|======|=====================
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2024-03-27 16:25:05 +00:00
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bwc_codec* parse_codestream (bwc_stream *const data,
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2024-02-22 10:27:40 +00:00
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uint8 const layer);
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2023-06-20 11:43:33 +00:00
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#endif
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