mirror of
https://github.com/FFmpeg/FFmpeg.git
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63 lines
1.9 KiB
C
63 lines
1.9 KiB
C
/*
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* Copyright (C) 2003 David S. Miller <davem@redhat.com>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/* The *no_round* functions have been added by James A. Morrison, 2003,2004.
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The vis code from libmpeg2 was adapted for libavcodec by James A. Morrison.
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*/
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#include "config.h"
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#include <inttypes.h>
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#include "libavutil/attributes.h"
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#include "libavcodec/dsputil.h"
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#include "libavutil/mem.h"
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#include "dsputil_vis.h"
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#include "vis.h"
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#define ACCEL_SPARC_VIS 1
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#define ACCEL_SPARC_VIS2 2
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static int vis_level(void)
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{
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int accel = 0;
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accel |= ACCEL_SPARC_VIS;
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accel |= ACCEL_SPARC_VIS2;
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return accel;
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}
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/* libavcodec initialization code */
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av_cold void ff_dsputil_init_vis(DSPContext *c, AVCodecContext *avctx)
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{
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/* VIS-specific optimizations */
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int accel = vis_level ();
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const int high_bit_depth = avctx->bits_per_raw_sample > 8;
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if (accel & ACCEL_SPARC_VIS && !high_bit_depth) {
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if (avctx->idct_algo == FF_IDCT_SIMPLEVIS) {
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c->idct_put = ff_simple_idct_put_vis;
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c->idct_add = ff_simple_idct_add_vis;
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c->idct = ff_simple_idct_vis;
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c->idct_permutation_type = FF_TRANSPOSE_IDCT_PERM;
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}
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}
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}
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