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} 55