ARM: fail build if hardcoded struct offsets are wrong
[libav.git] / libavcodec / arm / mpegvideo_arm.c
1 /*
2 * Copyright (c) 2002 Michael Niedermayer
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 #include "libavcodec/avcodec.h"
22 #include "libavcodec/dsputil.h"
23 #include "libavcodec/mpegvideo.h"
24 #include "mpegvideo_arm.h"
25 #include "asm-offsets.h"
26
27 CHK_OFFS(MpegEncContext, y_dc_scale, Y_DC_SCALE);
28 CHK_OFFS(MpegEncContext, c_dc_scale, C_DC_SCALE);
29 CHK_OFFS(MpegEncContext, ac_pred, AC_PRED);
30 CHK_OFFS(MpegEncContext, block_last_index, BLOCK_LAST_INDEX);
31 CHK_OFFS(MpegEncContext, inter_scantable.raster_end, INTER_SCANTAB_RASTER_END);
32 CHK_OFFS(MpegEncContext, h263_aic, H263_AIC);
33
34 void ff_dct_unquantize_h263_inter_neon(MpegEncContext *s, DCTELEM *block,
35 int n, int qscale);
36 void ff_dct_unquantize_h263_intra_neon(MpegEncContext *s, DCTELEM *block,
37 int n, int qscale);
38
39 void MPV_common_init_arm(MpegEncContext *s)
40 {
41 /* IWMMXT support is a superset of armv5te, so
42 * allow optimized functions for armv5te unless
43 * a better iwmmxt function exists
44 */
45 #if HAVE_ARMV5TE
46 MPV_common_init_armv5te(s);
47 #endif
48 #if HAVE_IWMMXT
49 MPV_common_init_iwmmxt(s);
50 #endif
51
52 if (HAVE_NEON) {
53 s->dct_unquantize_h263_intra = ff_dct_unquantize_h263_intra_neon;
54 s->dct_unquantize_h263_inter = ff_dct_unquantize_h263_inter_neon;
55 }
56 }