forked from mirrors/gecko-dev
bbbd3c280f
Backed out changeset ce0c34e548fa (bug 1889978) Backed out changeset 96e08e04fa4d (bug 1889978) Backed out changeset 2aeb87615ee0 (bug 1889978) Backed out changeset 2272c3a73ad3 (bug 1889978) Backed out changeset dc81d0c812b8 (bug 1889978)
130 lines
5.4 KiB
C
130 lines
5.4 KiB
C
/*
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* Copyright (c) 2014 Michael Niedermayer <michaelni@gmx.at>
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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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#include "avcodec.h"
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#include "idctdsp.h"
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#include "fdctdsp.h"
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#include "pixblockdsp.h"
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#include "avdct.h"
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#define OFFSET(x) offsetof(AVDCT,x)
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#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
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//these names are too long to be readable
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#define V AV_OPT_FLAG_VIDEO_PARAM
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#define A AV_OPT_FLAG_AUDIO_PARAM
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#define E AV_OPT_FLAG_ENCODING_PARAM
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#define D AV_OPT_FLAG_DECODING_PARAM
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static const AVOption avdct_options[] = {
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{"dct", "DCT algorithm", OFFSET(dct_algo), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX, V|E, "dct"},
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{"auto", "autoselect a good one", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_AUTO }, INT_MIN, INT_MAX, V|E, "dct"},
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{"fastint", "fast integer (experimental / for debugging)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_FASTINT }, INT_MIN, INT_MAX, V|E, "dct"},
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{"int", "accurate integer", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_INT }, INT_MIN, INT_MAX, V|E, "dct"},
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{"mmx", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_MMX }, INT_MIN, INT_MAX, V|E, "dct"},
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{"altivec", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_ALTIVEC }, INT_MIN, INT_MAX, V|E, "dct"},
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{"faan", "floating point AAN DCT (experimental / for debugging)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_FAAN }, INT_MIN, INT_MAX, V|E, "dct"},
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{"idct", "select IDCT implementation", OFFSET(idct_algo), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX, V|E|D, "idct"},
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{"auto", "autoselect a good one", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_AUTO }, INT_MIN, INT_MAX, V|E|D, "idct"},
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{"int", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_INT }, INT_MIN, INT_MAX, V|E|D, "idct"},
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{"simple", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLE }, INT_MIN, INT_MAX, V|E|D, "idct"},
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{"simplemmx", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEMMX }, INT_MIN, INT_MAX, V|E|D, "idct"},
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{"arm", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_ARM }, INT_MIN, INT_MAX, V|E|D, "idct"},
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{"altivec", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_ALTIVEC }, INT_MIN, INT_MAX, V|E|D, "idct"},
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{"simplearm", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEARM }, INT_MIN, INT_MAX, V|E|D, "idct"},
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{"simplearmv5te", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEARMV5TE }, INT_MIN, INT_MAX, V|E|D, "idct"},
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{"simplearmv6", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEARMV6 }, INT_MIN, INT_MAX, V|E|D, "idct"},
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{"simpleneon", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLENEON }, INT_MIN, INT_MAX, V|E|D, "idct"},
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{"xvid", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_XVID }, INT_MIN, INT_MAX, V|E|D, "idct"},
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{"xvidmmx", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_XVID }, INT_MIN, INT_MAX, V|E|D, "idct"},
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{"faani", "floating point AAN IDCT (experimental / for debugging)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_FAAN }, INT_MIN, INT_MAX, V|D|E, "idct"},
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{"simpleauto", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEAUTO }, INT_MIN, INT_MAX, V|E|D, "idct"},
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{"bits_per_sample", "", OFFSET(bits_per_sample), AV_OPT_TYPE_INT, {.i64 = 8 }, 0, 14, 0,},
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{NULL},
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};
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static const AVClass avdct_class = {
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.class_name = "AVDCT",
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.option = avdct_options,
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.version = LIBAVUTIL_VERSION_INT,
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};
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const AVClass *avcodec_dct_get_class(void)
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{
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return &avdct_class;
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}
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AVDCT *avcodec_dct_alloc(void)
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{
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AVDCT *dsp = av_mallocz(sizeof(AVDCT));
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if (!dsp)
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return NULL;
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dsp->av_class = &avdct_class;
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av_opt_set_defaults(dsp);
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return dsp;
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}
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int avcodec_dct_init(AVDCT *dsp)
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{
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AVCodecContext *avctx = avcodec_alloc_context3(NULL);
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if (!avctx)
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return AVERROR(ENOMEM);
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avctx->idct_algo = dsp->idct_algo;
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avctx->dct_algo = dsp->dct_algo;
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avctx->bits_per_raw_sample = dsp->bits_per_sample;
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#define COPY(src, name) memcpy(&dsp->name, &src.name, sizeof(dsp->name))
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#if CONFIG_IDCTDSP
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{
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IDCTDSPContext idsp = {0};
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ff_idctdsp_init(&idsp, avctx);
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COPY(idsp, idct);
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COPY(idsp, idct_permutation);
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}
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#endif
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#if CONFIG_FDCTDSP
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{
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FDCTDSPContext fdsp;
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ff_fdctdsp_init(&fdsp, avctx);
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COPY(fdsp, fdct);
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}
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#endif
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#if CONFIG_PIXBLOCKDSP
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{
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PixblockDSPContext pdsp;
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ff_pixblockdsp_init(&pdsp, avctx);
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COPY(pdsp, get_pixels);
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COPY(pdsp, get_pixels_unaligned);
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}
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#endif
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avcodec_free_context(&avctx);
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return 0;
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}
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