mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-28 20:53:54 +02:00
70d54392f5
The new lowres support is limited to decoders where lowres decoding is possible in high quality. I was not able to measure any speed difference, but if one is found the 2-3 lines that might affect speed can be made compile time conditional Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
43 lines
1.6 KiB
C
43 lines
1.6 KiB
C
/*
|
|
* Copyright (c) 2009 Mans Rullgard <mans@mansr.com>
|
|
*
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* FFmpeg is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* FFmpeg is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with FFmpeg; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#include "libavcodec/dsputil.h"
|
|
#include "dsputil_arm.h"
|
|
|
|
void ff_simple_idct_armv5te(DCTELEM *data);
|
|
void ff_simple_idct_put_armv5te(uint8_t *dest, int line_size, DCTELEM *data);
|
|
void ff_simple_idct_add_armv5te(uint8_t *dest, int line_size, DCTELEM *data);
|
|
|
|
void ff_prefetch_arm(void *mem, int stride, int h);
|
|
|
|
av_cold void ff_dsputil_init_armv5te(DSPContext *c, AVCodecContext *avctx)
|
|
{
|
|
if (!avctx->lowres && avctx->bits_per_raw_sample <= 8 &&
|
|
(avctx->idct_algo == FF_IDCT_AUTO ||
|
|
avctx->idct_algo == FF_IDCT_SIMPLEARMV5TE)) {
|
|
c->idct_put = ff_simple_idct_put_armv5te;
|
|
c->idct_add = ff_simple_idct_add_armv5te;
|
|
c->idct = ff_simple_idct_armv5te;
|
|
c->idct_permutation_type = FF_NO_IDCT_PERM;
|
|
}
|
|
|
|
c->prefetch = ff_prefetch_arm;
|
|
}
|