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For certain arches (AARCH64, x86, generic) get_pixels and get_pixels_unaligned always coincide for 8 bit input. In these cases it is possible to avoid checks for unaligned input in asvenc, dvenc. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
63 lines
2.6 KiB
C
63 lines
2.6 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 AVCODEC_PIXBLOCKDSP_H
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#define AVCODEC_PIXBLOCKDSP_H
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#include <stddef.h>
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#include <stdint.h>
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#define PIXBLOCKDSP_8BPP_GET_PIXELS_SUPPORTS_UNALIGNED \
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!(ARCH_ARM || ARCH_MIPS || ARCH_PPC || ARCH_RISCV)
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typedef struct PixblockDSPContext {
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void (*get_pixels)(int16_t *restrict block /* align 16 */,
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/* align 16 for > 8 bits; align 8 for <= 8 bits
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* (or 1 if PIXBLOCKDSP_8BPP_GET_PIXELS_SUPPORTS_UNALIGNED is set) */
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const uint8_t *pixels,
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ptrdiff_t stride);
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void (*get_pixels_unaligned)(int16_t *restrict block /* align 16 */,
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const uint8_t *pixels,
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ptrdiff_t stride);
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void (*diff_pixels)(int16_t *restrict block /* align 16 */,
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const uint8_t *s1 /* align 8 */,
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const uint8_t *s2 /* align 8 */,
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ptrdiff_t stride);
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void (*diff_pixels_unaligned)(int16_t *restrict block /* align 16 */,
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const uint8_t *s1,
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const uint8_t *s2,
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ptrdiff_t stride);
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} PixblockDSPContext;
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void ff_pixblockdsp_init(PixblockDSPContext *c, int bits_per_raw_sample);
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void ff_pixblockdsp_init_aarch64(PixblockDSPContext *c,
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unsigned high_bit_depth);
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void ff_pixblockdsp_init_arm(PixblockDSPContext *c,
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unsigned high_bit_depth);
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void ff_pixblockdsp_init_ppc(PixblockDSPContext *c,
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unsigned high_bit_depth);
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void ff_pixblockdsp_init_riscv(PixblockDSPContext *c,
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unsigned high_bit_depth);
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void ff_pixblockdsp_init_x86(PixblockDSPContext *c,
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unsigned high_bit_depth);
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void ff_pixblockdsp_init_mips(PixblockDSPContext *c,
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unsigned high_bit_depth);
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#endif /* AVCODEC_PIXBLOCKDSP_H */
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