lavu: add CHK_OFFS as AV_CHECK_OFFSET to check struct member offsets
[libav.git] / libavcodec / arm / mpegvideo_arm.c
1 /*
2 * Copyright (c) 2002 Michael Niedermayer
3 *
4 * This file is part of Libav.
5 *
6 * Libav 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 * Libav 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 Libav; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 #include "libavutil/internal.h"
22 #include "libavutil/arm/cpu.h"
23 #include "libavcodec/avcodec.h"
24 #include "libavcodec/mpegvideo.h"
25 #include "mpegvideo_arm.h"
26 #include "asm-offsets.h"
27
28 #if HAVE_NEON
29 AV_CHECK_OFFSET(MpegEncContext, y_dc_scale, Y_DC_SCALE);
30 AV_CHECK_OFFSET(MpegEncContext, c_dc_scale, C_DC_SCALE);
31 AV_CHECK_OFFSET(MpegEncContext, ac_pred, AC_PRED);
32 AV_CHECK_OFFSET(MpegEncContext, block_last_index, BLOCK_LAST_INDEX);
33 AV_CHECK_OFFSET(MpegEncContext, inter_scantable.raster_end,
34 INTER_SCANTAB_RASTER_END);
35 AV_CHECK_OFFSET(MpegEncContext, h263_aic, H263_AIC);
36 #endif
37
38 void ff_dct_unquantize_h263_inter_neon(MpegEncContext *s, int16_t *block,
39 int n, int qscale);
40 void ff_dct_unquantize_h263_intra_neon(MpegEncContext *s, int16_t *block,
41 int n, int qscale);
42
43 av_cold void ff_MPV_common_init_arm(MpegEncContext *s)
44 {
45 int cpu_flags = av_get_cpu_flags();
46
47 if (have_armv5te(cpu_flags))
48 ff_MPV_common_init_armv5te(s);
49
50 if (have_neon(cpu_flags)) {
51 s->dct_unquantize_h263_intra = ff_dct_unquantize_h263_intra_neon;
52 s->dct_unquantize_h263_inter = ff_dct_unquantize_h263_inter_neon;
53 }
54 }