From 458cc7e314e1a00017dd090db388db6659d1bb5f Mon Sep 17 00:00:00 2001 From: Leo Izen Date: Sun, 17 Apr 2022 09:22:34 -0400 Subject: avcodec/libjxl: add Jpeg XL decoding via libjxl This commit adds decoding support to libavcodec for Jpeg XL images via the external library libjxl. --- libavcodec/libjxl.h | 48 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 libavcodec/libjxl.h (limited to 'libavcodec/libjxl.h') diff --git a/libavcodec/libjxl.h b/libavcodec/libjxl.h new file mode 100644 index 0000000000..5387c438fd --- /dev/null +++ b/libavcodec/libjxl.h @@ -0,0 +1,48 @@ +/* + * JPEG XL de/encoding via libjxl, common support header + * Copyright (c) 2021 Leo Izen + * + * 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 + +/** + * 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 */ -- cgit v1.2.3