/* * JPEG XL de/encoding via libjxl, common support header * Copyright (c) 2021 Leo Izen <leo.izen@gmail.com> * * This file is part of FFmpeg. * * FFmpeg 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. * * FFmpeg 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 FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /** * @file * JPEG XL via libjxl common support header */ #ifndef AVCODEC_LIBJXL_H #define AVCODEC_LIBJXL_H #include <jxl/decode.h> #include <jxl/memory_manager.h> /* * libjxl version 0.7.0 and earlier doesn't contain these macros at all * so to detect version 0.7.0 versus 0.8.0 we need to define them ourselves */ #ifndef JPEGXL_COMPUTE_NUMERIC_VERSION #define JPEGXL_COMPUTE_NUMERIC_VERSION(major,minor,patch) ((major<<24) | (minor<<16) | (patch<<8) | 0) #endif #ifndef JPEGXL_NUMERIC_VERSION #define JPEGXL_NUMERIC_VERSION JPEGXL_COMPUTE_NUMERIC_VERSION(0, 7, 0) #endif /** * Transform threadcount in ffmpeg to one used by libjxl. * * @param threads ffmpeg's threads AVOption * @return thread count for libjxl's parallel runner */ size_t ff_libjxl_get_threadcount(int threads); /** * Initialize and populate a JxlMemoryManager * with av_malloc() and av_free() so libjxl will use these * functions. * @param manager a pointer to a JxlMemoryManager struct */ void ff_libjxl_init_memory_manager(JxlMemoryManager *manager); #endif /* AVCODEC_LIBJXL_H */