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ffmpeg/libavcodec/arm/asm-offsets.h
Mans Rullgard d461a47317 Rearrange MpegEncContext to simplify access from asm
This moves the fields needed by asm near the top, before any
structs or other members which complicate the offset calculation.
Modifying other structs will no longer require updating the offsets,
and the asm code is slightly simpler due to the smaller offsets.

Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-01-29 17:14:29 +00:00

40 lines
1.3 KiB
C

/*
* Copyright (c) 2010 Mans Rullgard
*
* 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
*/
#ifndef AVCODEC_ARM_ASM_OFFSETS_H
#define AVCODEC_ARM_ASM_OFFSETS_H
#ifndef __ASSEMBLER__
#include <stddef.h>
#define CHK_OFFS(s, m, o) struct check_##o { \
int x_##o[offsetof(s, m) == o? 1: -1]; \
}
#endif
/* MpegEncContext */
#define Y_DC_SCALE 0xb4
#define C_DC_SCALE 0xb8
#define AC_PRED 0xbc
#define BLOCK_LAST_INDEX 0xc0
#define H263_AIC 0xf0
#define INTER_SCANTAB_RASTER_END 0x138
#endif