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7dcb5e1ab0
av_bswapXX() are used in context that expect exact size types, notably variable arguments to av_log(). On Linux RV64, uint_fast32_t is an unsigned long, so the current inline assembler does not work properly. Since GCC and Clang gained their byte-swap built-ins before they supported RISC-V, we can simply defer to them. As an added bonus, the compiler can do instruction scheduling, which it couldn't with the Zbb inline assembler.
33 lines
1.1 KiB
C
33 lines
1.1 KiB
C
/*
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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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#ifndef AVUTIL_RISCV_BSWAP_H
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#define AVUTIL_RISCV_BSWAP_H
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#include <stdint.h>
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#include "config.h"
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#include "libavutil/attributes.h"
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#if defined (__GNUC__) || defined (__clang__)
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#define av_bswap16 __builtin_bswap16
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#define av_bswap32 __builtin_bswap32
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#define av_bswap64 __builtin_bswap64
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#endif
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#endif /* AVUTIL_RISCV_BSWAP_H */
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