From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 02:47:55 +0200 Subject: Adding upstream version 124.0.1. Signed-off-by: Daniel Baumann --- media/ffvpx/libavcodec/idctdsp.c | 315 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 315 insertions(+) create mode 100644 media/ffvpx/libavcodec/idctdsp.c (limited to 'media/ffvpx/libavcodec/idctdsp.c') diff --git a/media/ffvpx/libavcodec/idctdsp.c b/media/ffvpx/libavcodec/idctdsp.c new file mode 100644 index 0000000000..7216afb094 --- /dev/null +++ b/media/ffvpx/libavcodec/idctdsp.c @@ -0,0 +1,315 @@ +/* + * 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 "config_components.h" +#include "libavutil/attributes.h" +#include "libavutil/common.h" +#include "avcodec.h" +#include "dct.h" +#include "faanidct.h" +#include "idctdsp.h" +#include "simple_idct.h" +#include "xvididct.h" + +av_cold void ff_permute_scantable(uint8_t dst[64], const uint8_t src[64], + const uint8_t permutation[64]) +{ + for (int i = 0; i < 64; i++) { + int j = src[i]; + dst[i] = permutation[j]; + } +} + +av_cold void ff_init_scantable_permutation(uint8_t *idct_permutation, + enum idct_permutation_type perm_type) +{ + int i; + +#if ARCH_X86 + if (ff_init_scantable_permutation_x86(idct_permutation, + perm_type)) + return; +#endif + + switch (perm_type) { + case FF_IDCT_PERM_NONE: + for (i = 0; i < 64; i++) + idct_permutation[i] = i; + break; + case FF_IDCT_PERM_LIBMPEG2: + for (i = 0; i < 64; i++) + idct_permutation[i] = (i & 0x38) | ((i & 6) >> 1) | ((i & 1) << 2); + break; + case FF_IDCT_PERM_TRANSPOSE: + for (i = 0; i < 64; i++) + idct_permutation[i] = ((i & 7) << 3) | (i >> 3); + break; + case FF_IDCT_PERM_PARTTRANS: + for (i = 0; i < 64; i++) + idct_permutation[i] = (i & 0x24) | ((i & 3) << 3) | ((i >> 3) & 3); + break; + default: + av_log(NULL, AV_LOG_ERROR, + "Internal error, IDCT permutation not set\n"); + } +} + +void ff_put_pixels_clamped_c(const int16_t *block, uint8_t *av_restrict pixels, + ptrdiff_t line_size) +{ + int i; + + /* read the pixels */ + for (i = 0; i < 8; i++) { + pixels[0] = av_clip_uint8(block[0]); + pixels[1] = av_clip_uint8(block[1]); + pixels[2] = av_clip_uint8(block[2]); + pixels[3] = av_clip_uint8(block[3]); + pixels[4] = av_clip_uint8(block[4]); + pixels[5] = av_clip_uint8(block[5]); + pixels[6] = av_clip_uint8(block[6]); + pixels[7] = av_clip_uint8(block[7]); + + pixels += line_size; + block += 8; + } +} + +static void put_pixels_clamped4_c(const int16_t *block, uint8_t *av_restrict pixels, + int line_size) +{ + int i; + + /* read the pixels */ + for(i=0;i<4;i++) { + pixels[0] = av_clip_uint8(block[0]); + pixels[1] = av_clip_uint8(block[1]); + pixels[2] = av_clip_uint8(block[2]); + pixels[3] = av_clip_uint8(block[3]); + + pixels += line_size; + block += 8; + } +} + +static void put_pixels_clamped2_c(const int16_t *block, uint8_t *av_restrict pixels, + int line_size) +{ + int i; + + /* read the pixels */ + for(i=0;i<2;i++) { + pixels[0] = av_clip_uint8(block[0]); + pixels[1] = av_clip_uint8(block[1]); + + pixels += line_size; + block += 8; + } +} + +static void put_signed_pixels_clamped_c(const int16_t *block, + uint8_t *av_restrict pixels, + ptrdiff_t line_size) +{ + int i, j; + + for (i = 0; i < 8; i++) { + for (j = 0; j < 8; j++) { + if (*block < -128) + *pixels = 0; + else if (*block > 127) + *pixels = 255; + else + *pixels = (uint8_t) (*block + 128); + block++; + pixels++; + } + pixels += (line_size - 8); + } +} + +void ff_add_pixels_clamped_c(const int16_t *block, uint8_t *av_restrict pixels, + ptrdiff_t line_size) +{ + int i; + + /* read the pixels */ + for (i = 0; i < 8; i++) { + pixels[0] = av_clip_uint8(pixels[0] + block[0]); + pixels[1] = av_clip_uint8(pixels[1] + block[1]); + pixels[2] = av_clip_uint8(pixels[2] + block[2]); + pixels[3] = av_clip_uint8(pixels[3] + block[3]); + pixels[4] = av_clip_uint8(pixels[4] + block[4]); + pixels[5] = av_clip_uint8(pixels[5] + block[5]); + pixels[6] = av_clip_uint8(pixels[6] + block[6]); + pixels[7] = av_clip_uint8(pixels[7] + block[7]); + pixels += line_size; + block += 8; + } +} + +static void add_pixels_clamped4_c(const int16_t *block, uint8_t *av_restrict pixels, + int line_size) +{ + int i; + + /* read the pixels */ + for(i=0;i<4;i++) { + pixels[0] = av_clip_uint8(pixels[0] + block[0]); + pixels[1] = av_clip_uint8(pixels[1] + block[1]); + pixels[2] = av_clip_uint8(pixels[2] + block[2]); + pixels[3] = av_clip_uint8(pixels[3] + block[3]); + pixels += line_size; + block += 8; + } +} + +static void add_pixels_clamped2_c(const int16_t *block, uint8_t *av_restrict pixels, + int line_size) +{ + int i; + + /* read the pixels */ + for(i=0;i<2;i++) { + pixels[0] = av_clip_uint8(pixels[0] + block[0]); + pixels[1] = av_clip_uint8(pixels[1] + block[1]); + pixels += line_size; + block += 8; + } +} + +static void ff_jref_idct4_put(uint8_t *dest, ptrdiff_t line_size, int16_t *block) +{ + ff_j_rev_dct4 (block); + put_pixels_clamped4_c(block, dest, line_size); +} +static void ff_jref_idct4_add(uint8_t *dest, ptrdiff_t line_size, int16_t *block) +{ + ff_j_rev_dct4 (block); + add_pixels_clamped4_c(block, dest, line_size); +} + +static void ff_jref_idct2_put(uint8_t *dest, ptrdiff_t line_size, int16_t *block) +{ + ff_j_rev_dct2 (block); + put_pixels_clamped2_c(block, dest, line_size); +} +static void ff_jref_idct2_add(uint8_t *dest, ptrdiff_t line_size, int16_t *block) +{ + ff_j_rev_dct2 (block); + add_pixels_clamped2_c(block, dest, line_size); +} + +static void ff_jref_idct1_put(uint8_t *dest, ptrdiff_t line_size, int16_t *block) +{ + dest[0] = av_clip_uint8((block[0] + 4)>>3); +} +static void ff_jref_idct1_add(uint8_t *dest, ptrdiff_t line_size, int16_t *block) +{ + dest[0] = av_clip_uint8(dest[0] + ((block[0] + 4)>>3)); +} + +av_cold void ff_idctdsp_init(IDCTDSPContext *c, AVCodecContext *avctx) +{ + av_unused const unsigned high_bit_depth = avctx->bits_per_raw_sample > 8; + + if (avctx->lowres==1) { + c->idct_put = ff_jref_idct4_put; + c->idct_add = ff_jref_idct4_add; + c->idct = ff_j_rev_dct4; + c->perm_type = FF_IDCT_PERM_NONE; + } else if (avctx->lowres==2) { + c->idct_put = ff_jref_idct2_put; + c->idct_add = ff_jref_idct2_add; + c->idct = ff_j_rev_dct2; + c->perm_type = FF_IDCT_PERM_NONE; + } else if (avctx->lowres==3) { + c->idct_put = ff_jref_idct1_put; + c->idct_add = ff_jref_idct1_add; + c->idct = ff_j_rev_dct1; + c->perm_type = FF_IDCT_PERM_NONE; + } else { + if (avctx->bits_per_raw_sample == 10 || avctx->bits_per_raw_sample == 9) { + /* 10-bit MPEG-4 Simple Studio Profile requires a higher precision IDCT + However, it only uses idct_put */ + if (c->mpeg4_studio_profile) { + c->idct_put = ff_simple_idct_put_int32_10bit; + c->idct_add = NULL; + c->idct = NULL; + } else { + c->idct_put = ff_simple_idct_put_int16_10bit; + c->idct_add = ff_simple_idct_add_int16_10bit; + c->idct = ff_simple_idct_int16_10bit; + } + c->perm_type = FF_IDCT_PERM_NONE; + } else if (avctx->bits_per_raw_sample == 12) { + c->idct_put = ff_simple_idct_put_int16_12bit; + c->idct_add = ff_simple_idct_add_int16_12bit; + c->idct = ff_simple_idct_int16_12bit; + c->perm_type = FF_IDCT_PERM_NONE; + } else { + if (avctx->idct_algo == FF_IDCT_INT) { + c->idct_put = ff_jref_idct_put; + c->idct_add = ff_jref_idct_add; + c->idct = ff_j_rev_dct; + c->perm_type = FF_IDCT_PERM_LIBMPEG2; +#if CONFIG_FAANIDCT + } else if (avctx->idct_algo == FF_IDCT_FAAN) { + c->idct_put = ff_faanidct_put; + c->idct_add = ff_faanidct_add; + c->idct = ff_faanidct; + c->perm_type = FF_IDCT_PERM_NONE; +#endif /* CONFIG_FAANIDCT */ + } else { // accurate/default + c->idct_put = ff_simple_idct_put_int16_8bit; + c->idct_add = ff_simple_idct_add_int16_8bit; + c->idct = ff_simple_idct_int16_8bit; + c->perm_type = FF_IDCT_PERM_NONE; + } + } + } + + c->put_pixels_clamped = ff_put_pixels_clamped_c; + c->put_signed_pixels_clamped = put_signed_pixels_clamped_c; + c->add_pixels_clamped = ff_add_pixels_clamped_c; + + if (CONFIG_MPEG4_DECODER && avctx->idct_algo == FF_IDCT_XVID) + ff_xvid_idct_init(c, avctx); + +#if ARCH_AARCH64 + ff_idctdsp_init_aarch64(c, avctx, high_bit_depth); +#elif ARCH_ALPHA + ff_idctdsp_init_alpha(c, avctx, high_bit_depth); +#elif ARCH_ARM + ff_idctdsp_init_arm(c, avctx, high_bit_depth); +#elif ARCH_PPC + ff_idctdsp_init_ppc(c, avctx, high_bit_depth); +#elif ARCH_RISCV + ff_idctdsp_init_riscv(c, avctx, high_bit_depth); +#elif ARCH_X86 + ff_idctdsp_init_x86(c, avctx, high_bit_depth); +#elif ARCH_MIPS + ff_idctdsp_init_mips(c, avctx, high_bit_depth); +#elif ARCH_LOONGARCH + ff_idctdsp_init_loongarch(c, avctx, high_bit_depth); +#endif + + ff_init_scantable_permutation(c->idct_permutation, + c->perm_type); +} -- cgit v1.2.3