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/libavcodec/arm/mpegvideo_arm.c

http://github.com/FFmpeg/FFmpeg
C | 54 lines | 29 code | 6 blank | 19 comment | 2 complexity | d26f39455f5dc925081e42ef519159eb MD5 | raw file
 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 "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
29AV_CHECK_OFFSET(MpegEncContext, y_dc_scale,       Y_DC_SCALE);
30AV_CHECK_OFFSET(MpegEncContext, c_dc_scale,       C_DC_SCALE);
31AV_CHECK_OFFSET(MpegEncContext, ac_pred,          AC_PRED);
32AV_CHECK_OFFSET(MpegEncContext, block_last_index, BLOCK_LAST_INDEX);
33AV_CHECK_OFFSET(MpegEncContext, inter_scantable.raster_end,
34                INTER_SCANTAB_RASTER_END);
35AV_CHECK_OFFSET(MpegEncContext, h263_aic,         H263_AIC);
36#endif
37
38void ff_dct_unquantize_h263_inter_neon(MpegEncContext *s, int16_t *block,
39                                       int n, int qscale);
40void ff_dct_unquantize_h263_intra_neon(MpegEncContext *s, int16_t *block,
41                                       int n, int qscale);
42
43av_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}