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0009348306
Since many distributions ship libjxl 0.7.0 still, we'd still prefer to compile against that, but don't want to lose the features that require libjxl 0.8.0 or greater. For this reason I've added preprocessor #ifdef guards around the features that aren't necessarily in libjxl 0.7.0. Signed-off-by: Leo Izen <leo.izen@gmail.com>
61 lines
1.9 KiB
C
61 lines
1.9 KiB
C
/*
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* JPEG XL de/encoding via libjxl, common support header
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* Copyright (c) 2021 Leo Izen <leo.izen@gmail.com>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg 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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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file
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* JPEG XL via libjxl common support header
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*/
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#ifndef AVCODEC_LIBJXL_H
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#define AVCODEC_LIBJXL_H
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#include <jxl/decode.h>
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#include <jxl/memory_manager.h>
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/*
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* libjxl version 0.7.0 and earlier doesn't contain these macros at all
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* so to detect version 0.7.0 versus 0.8.0 we need to define them ourselves
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*/
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#ifndef JPEGXL_COMPUTE_NUMERIC_VERSION
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#define JPEGXL_COMPUTE_NUMERIC_VERSION(major,minor,patch) ((major<<24) | (minor<<16) | (patch<<8) | 0)
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#endif
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#ifndef JPEGXL_NUMERIC_VERSION
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#define JPEGXL_NUMERIC_VERSION JPEGXL_COMPUTE_NUMERIC_VERSION(0, 7, 0)
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#endif
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/**
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* Transform threadcount in ffmpeg to one used by libjxl.
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*
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* @param threads ffmpeg's threads AVOption
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* @return thread count for libjxl's parallel runner
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*/
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size_t ff_libjxl_get_threadcount(int threads);
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/**
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* Initialize and populate a JxlMemoryManager
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* with av_malloc() and av_free() so libjxl will use these
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* functions.
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* @param manager a pointer to a JxlMemoryManager struct
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*/
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void ff_libjxl_init_memory_manager(JxlMemoryManager *manager);
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#endif /* AVCODEC_LIBJXL_H */
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