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FFmpeg/libavcodec/arm/mpegvideo_arm.c
Måns Rullgård 68dacb4e3b ARM: check struct offsets only when they are used
The offsets differ depending on configuration, so only check them when
they will actually be used.  Presently, this is when NEON is enabled.

Originally committed as revision 23436 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-06-02 22:05:25 +00:00

59 lines
2.0 KiB
C

/*
* Copyright (c) 2002 Michael Niedermayer
*
* 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
*/
#include "libavcodec/avcodec.h"
#include "libavcodec/dsputil.h"
#include "libavcodec/mpegvideo.h"
#include "mpegvideo_arm.h"
#include "asm-offsets.h"
#if HAVE_NEON
CHK_OFFS(MpegEncContext, y_dc_scale, Y_DC_SCALE);
CHK_OFFS(MpegEncContext, c_dc_scale, C_DC_SCALE);
CHK_OFFS(MpegEncContext, ac_pred, AC_PRED);
CHK_OFFS(MpegEncContext, block_last_index, BLOCK_LAST_INDEX);
CHK_OFFS(MpegEncContext, inter_scantable.raster_end, INTER_SCANTAB_RASTER_END);
CHK_OFFS(MpegEncContext, h263_aic, H263_AIC);
#endif
void ff_dct_unquantize_h263_inter_neon(MpegEncContext *s, DCTELEM *block,
int n, int qscale);
void ff_dct_unquantize_h263_intra_neon(MpegEncContext *s, DCTELEM *block,
int n, int qscale);
void MPV_common_init_arm(MpegEncContext *s)
{
/* IWMMXT support is a superset of armv5te, so
* allow optimized functions for armv5te unless
* a better iwmmxt function exists
*/
#if HAVE_ARMV5TE
MPV_common_init_armv5te(s);
#endif
#if HAVE_IWMMXT
MPV_common_init_iwmmxt(s);
#endif
if (HAVE_NEON) {
s->dct_unquantize_h263_intra = ff_dct_unquantize_h263_intra_neon;
s->dct_unquantize_h263_inter = ff_dct_unquantize_h263_inter_neon;
}
}