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FFmpeg/libavcodec/libjxl.h
Leo Izen ac06190a5a
avcodec/libjxl.h: include version.h
This file has been exported since our minimum required version (0.7.0),
but it wasn't documented. Instead it was transitively included by
<jxl/decode.h> (but not jxl/encode.h), which ffmpeg relied on.

libjxl broke its API in libjxl/libjxl@66b9592393 by removing
the transitive include of version.h, and they do not plan on adding
it back. Instead they are choosing to leave the API backwards-
incompatible with downstream callers written for some fairly recent
versions of their API.

As a result, we include <jxl/version.h> to continue to build against
more recent versions of libjxl. The version macros removed are also
present in that file, so we no longer need to redefine them.

Signed-off-by: Leo Izen <leo.izen@gmail.com>
2024-01-25 11:07:28 -05:00

50 lines
1.5 KiB
C

/*
* 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/memory_manager.h>
#include <jxl/version.h>
/**
* 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 */