mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
57 lines
1.8 KiB
57 lines
1.8 KiB
/* |
|
* 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 "config.h" |
|
#include "libavutil/attributes.h" |
|
#include "avcodec.h" |
|
#include "idctdsp.h" |
|
#include "xvididct.h" |
|
|
|
static void idct_xvid_put(uint8_t *dest, int line_size, int16_t *block) |
|
{ |
|
ff_idct_xvid(block); |
|
ff_put_pixels_clamped(block, dest, line_size); |
|
} |
|
|
|
static void idct_xvid_add(uint8_t *dest, int line_size, int16_t *block) |
|
{ |
|
ff_idct_xvid(block); |
|
ff_add_pixels_clamped(block, dest, line_size); |
|
} |
|
|
|
av_cold void ff_xvididct_init(IDCTDSPContext *c, AVCodecContext *avctx) |
|
{ |
|
const unsigned high_bit_depth = avctx->bits_per_raw_sample > 8; |
|
|
|
if (high_bit_depth || avctx->lowres || |
|
!(avctx->idct_algo == FF_IDCT_AUTO || |
|
avctx->idct_algo == FF_IDCT_XVID)) |
|
return; |
|
|
|
if (avctx->idct_algo == FF_IDCT_XVID) { |
|
c->idct_put = idct_xvid_put; |
|
c->idct_add = idct_xvid_add; |
|
c->idct = ff_idct_xvid; |
|
c->perm_type = FF_IDCT_PERM_NONE; |
|
} |
|
|
|
if (ARCH_X86) |
|
ff_xvididct_init_x86(c); |
|
|
|
ff_init_scantable_permutation(c->idct_permutation, c->perm_type); |
|
}
|
|
|