mirror of https://git.ffmpeg.org/ffmpeg.git
131 lines
5.6 KiB
C
131 lines
5.6 KiB
C
/*
|
|
* Copyright (c) 2014 Michael Niedermayer <michaelni@gmx.at>
|
|
*
|
|
* 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 "avcodec.h"
|
|
#include "idctdsp.h"
|
|
#include "fdctdsp.h"
|
|
#include "pixblockdsp.h"
|
|
#include "avdct.h"
|
|
|
|
#define OFFSET(x) offsetof(AVDCT,x)
|
|
#define DEFAULT 0 //should be NAN but it does not work as it is not a constant in glibc as required by ANSI/ISO C
|
|
//these names are too long to be readable
|
|
#define V AV_OPT_FLAG_VIDEO_PARAM
|
|
#define A AV_OPT_FLAG_AUDIO_PARAM
|
|
#define E AV_OPT_FLAG_ENCODING_PARAM
|
|
#define D AV_OPT_FLAG_DECODING_PARAM
|
|
|
|
static const AVOption avdct_options[] = {
|
|
{"dct", "DCT algorithm", OFFSET(dct_algo), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX, V|E, .unit = "dct"},
|
|
{"auto", "autoselect a good one", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_AUTO }, INT_MIN, INT_MAX, V|E, .unit = "dct"},
|
|
{"fastint", "fast integer (experimental / for debugging)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_FASTINT }, INT_MIN, INT_MAX, V|E, .unit = "dct"},
|
|
{"int", "accurate integer", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_INT }, INT_MIN, INT_MAX, V|E, .unit = "dct"},
|
|
{"mmx", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_MMX }, INT_MIN, INT_MAX, V|E, .unit = "dct"},
|
|
{"altivec", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_ALTIVEC }, INT_MIN, INT_MAX, V|E, .unit = "dct"},
|
|
{"faan", "floating point AAN DCT (experimental / for debugging)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_FAAN }, INT_MIN, INT_MAX, V|E, .unit = "dct"},
|
|
|
|
{"idct", "select IDCT implementation", OFFSET(idct_algo), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX, V|E|D, .unit = "idct"},
|
|
{"auto", "autoselect a good one", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_AUTO }, INT_MIN, INT_MAX, V|E|D, .unit = "idct"},
|
|
{"int", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_INT }, INT_MIN, INT_MAX, V|E|D, .unit = "idct"},
|
|
{"simple", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLE }, INT_MIN, INT_MAX, V|E|D, .unit = "idct"},
|
|
{"simplemmx", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEMMX }, INT_MIN, INT_MAX, V|E|D, .unit = "idct"},
|
|
{"arm", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_ARM }, INT_MIN, INT_MAX, V|E|D, .unit = "idct"},
|
|
{"altivec", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_ALTIVEC }, INT_MIN, INT_MAX, V|E|D, .unit = "idct"},
|
|
{"simplearm", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEARM }, INT_MIN, INT_MAX, V|E|D, .unit = "idct"},
|
|
{"simplearmv5te", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEARMV5TE }, INT_MIN, INT_MAX, V|E|D, .unit = "idct"},
|
|
{"simplearmv6", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEARMV6 }, INT_MIN, INT_MAX, V|E|D, .unit = "idct"},
|
|
{"simpleneon", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLENEON }, INT_MIN, INT_MAX, V|E|D, .unit = "idct"},
|
|
{"xvid", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_XVID }, INT_MIN, INT_MAX, V|E|D, .unit = "idct"},
|
|
{"xvidmmx", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_XVID }, INT_MIN, INT_MAX, V|E|D, .unit = "idct"},
|
|
{"faani", "floating point AAN IDCT (experimental / for debugging)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_FAAN }, INT_MIN, INT_MAX, V|D|E, .unit = "idct"},
|
|
{"simpleauto", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEAUTO }, INT_MIN, INT_MAX, V|E|D, .unit = "idct"},
|
|
|
|
{"bits_per_sample", "", OFFSET(bits_per_sample), AV_OPT_TYPE_INT, {.i64 = 8 }, 0, 14, 0,},
|
|
{NULL},
|
|
};
|
|
|
|
static const AVClass avdct_class = {
|
|
.class_name = "AVDCT",
|
|
.option = avdct_options,
|
|
.version = LIBAVUTIL_VERSION_INT,
|
|
};
|
|
|
|
const AVClass *avcodec_dct_get_class(void)
|
|
{
|
|
return &avdct_class;
|
|
}
|
|
|
|
AVDCT *avcodec_dct_alloc(void)
|
|
{
|
|
AVDCT *dsp = av_mallocz(sizeof(AVDCT));
|
|
|
|
if (!dsp)
|
|
return NULL;
|
|
|
|
dsp->av_class = &avdct_class;
|
|
av_opt_set_defaults(dsp);
|
|
|
|
return dsp;
|
|
}
|
|
|
|
int avcodec_dct_init(AVDCT *dsp)
|
|
{
|
|
AVCodecContext *avctx = avcodec_alloc_context3(NULL);
|
|
|
|
if (!avctx)
|
|
return AVERROR(ENOMEM);
|
|
|
|
avctx->idct_algo = dsp->idct_algo;
|
|
avctx->dct_algo = dsp->dct_algo;
|
|
avctx->bits_per_raw_sample = dsp->bits_per_sample;
|
|
|
|
#define COPY(src, name) memcpy(&dsp->name, &src.name, sizeof(dsp->name))
|
|
|
|
#if CONFIG_IDCTDSP
|
|
{
|
|
IDCTDSPContext idsp = {0};
|
|
ff_idctdsp_init(&idsp, avctx);
|
|
COPY(idsp, idct);
|
|
COPY(idsp, idct_permutation);
|
|
}
|
|
#endif
|
|
|
|
#if CONFIG_FDCTDSP
|
|
{
|
|
FDCTDSPContext fdsp;
|
|
ff_fdctdsp_init(&fdsp, avctx);
|
|
COPY(fdsp, fdct);
|
|
}
|
|
#endif
|
|
|
|
#if CONFIG_PIXBLOCKDSP
|
|
{
|
|
PixblockDSPContext pdsp;
|
|
ff_pixblockdsp_init(&pdsp, avctx);
|
|
COPY(pdsp, get_pixels);
|
|
COPY(pdsp, get_pixels_unaligned);
|
|
}
|
|
#endif
|
|
|
|
avcodec_free_context(&avctx);
|
|
|
|
return 0;
|
|
}
|