mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-02 03:06:28 +02:00
71 lines
2.0 KiB
C
71 lines
2.0 KiB
C
|
/*
|
||
|
|
* JPEG XL de/encoding via libjxl, common support implementation
|
||
|
|
* 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 implementation
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "libavutil/cpu.h"
|
||
|
|
#include "libavutil/mem.h"
|
||
|
|
|
||
|
|
#include <jxl/memory_manager.h>
|
||
|
|
#include "libjxl.h"
|
||
|
|
|
||
|
|
size_t ff_libjxl_get_threadcount(int threads)
|
||
|
|
{
|
||
|
|
if (threads <= 0)
|
||
|
|
return av_cpu_count();
|
||
|
|
if (threads == 1)
|
||
|
|
return 0;
|
||
|
|
return threads;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Wrapper around av_malloc used as a jpegxl_alloc_func.
|
||
|
|
*
|
||
|
|
* @param opaque opaque pointer for jpegxl_alloc_func, always ignored
|
||
|
|
* @param size Size in bytes for the memory block to be allocated
|
||
|
|
* @return Pointer to the allocated block, or `NULL` if it cannot be allocated
|
||
|
|
*/
|
||
|
|
static void *libjxl_av_malloc(void *opaque, size_t size)
|
||
|
|
{
|
||
|
|
return av_malloc(size);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Wrapper around av_free used as a jpegxl_free_func.
|
||
|
|
*
|
||
|
|
* @param opaque opaque pointer for jpegxl_free_func, always ignored
|
||
|
|
* @param address Pointer to the allocated block, to free. `NULL` permitted as a no-op.
|
||
|
|
*/
|
||
|
|
static void libjxl_av_free(void *opaque, void *address)
|
||
|
|
{
|
||
|
|
av_free(address);
|
||
|
|
}
|
||
|
|
|
||
|
|
void ff_libjxl_init_memory_manager(JxlMemoryManager *manager)
|
||
|
|
{
|
||
|
|
manager->opaque = NULL;
|
||
|
|
manager->alloc = &libjxl_av_malloc;
|
||
|
|
manager->free = &libjxl_av_free;
|
||
|
|
}
|