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https://github.com/FFmpeg/FFmpeg.git
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6a91a165fd
This is a purely cosmetic commit aimed at replacing accesses to SwsInternal.opts by direct access to SwsContext wherever convenient. Sponsored-by: Sovereign Tech Fund Signed-off-by: Niklas Haas <git@haasn.dev>
103 lines
8.4 KiB
C
103 lines
8.4 KiB
C
/*
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* Copyright (C) 2001-2003 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 "libavutil/opt.h"
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#include "swscale.h"
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#include "swscale_internal.h"
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static const char *sws_context_to_name(void *ptr)
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{
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return "swscaler";
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}
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#define OFFSET(x) offsetof(SwsContext, x)
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#define DEFAULT 0
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#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
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static const AVOption swscale_options[] = {
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{ "sws_flags", "swscale flags", OFFSET(flags), AV_OPT_TYPE_FLAGS, { .i64 = SWS_BICUBIC }, .flags = VE, .unit = "sws_flags", .max = UINT_MAX },
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{ "fast_bilinear", "fast bilinear", 0, AV_OPT_TYPE_CONST, { .i64 = SWS_FAST_BILINEAR }, .flags = VE, .unit = "sws_flags" },
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{ "bilinear", "bilinear", 0, AV_OPT_TYPE_CONST, { .i64 = SWS_BILINEAR }, .flags = VE, .unit = "sws_flags" },
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{ "bicubic", "bicubic", 0, AV_OPT_TYPE_CONST, { .i64 = SWS_BICUBIC }, .flags = VE, .unit = "sws_flags" },
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{ "experimental", "experimental", 0, AV_OPT_TYPE_CONST, { .i64 = SWS_X }, .flags = VE, .unit = "sws_flags" },
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{ "neighbor", "nearest neighbor", 0, AV_OPT_TYPE_CONST, { .i64 = SWS_POINT }, .flags = VE, .unit = "sws_flags" },
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{ "area", "averaging area", 0, AV_OPT_TYPE_CONST, { .i64 = SWS_AREA }, .flags = VE, .unit = "sws_flags" },
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{ "bicublin", "luma bicubic, chroma bilinear", 0, AV_OPT_TYPE_CONST, { .i64 = SWS_BICUBLIN }, .flags = VE, .unit = "sws_flags" },
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{ "gauss", "gaussian approximation", 0, AV_OPT_TYPE_CONST, { .i64 = SWS_GAUSS }, .flags = VE, .unit = "sws_flags" },
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{ "sinc", "sinc", 0, AV_OPT_TYPE_CONST, { .i64 = SWS_SINC }, .flags = VE, .unit = "sws_flags" },
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{ "lanczos", "lanczos (sinc/sinc)", 0, AV_OPT_TYPE_CONST, { .i64 = SWS_LANCZOS }, .flags = VE, .unit = "sws_flags" },
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{ "spline", "natural bicubic spline", 0, AV_OPT_TYPE_CONST, { .i64 = SWS_SPLINE }, .flags = VE, .unit = "sws_flags" },
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{ "print_info", "print info", 0, AV_OPT_TYPE_CONST, { .i64 = SWS_PRINT_INFO }, .flags = VE, .unit = "sws_flags" },
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{ "accurate_rnd", "accurate rounding", 0, AV_OPT_TYPE_CONST, { .i64 = SWS_ACCURATE_RND }, .flags = VE, .unit = "sws_flags" },
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{ "full_chroma_int", "full chroma interpolation", 0, AV_OPT_TYPE_CONST, { .i64 = SWS_FULL_CHR_H_INT }, .flags = VE, .unit = "sws_flags" },
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{ "full_chroma_inp", "full chroma input", 0, AV_OPT_TYPE_CONST, { .i64 = SWS_FULL_CHR_H_INP }, .flags = VE, .unit = "sws_flags" },
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{ "bitexact", "bit-exact mode", 0, AV_OPT_TYPE_CONST, { .i64 = SWS_BITEXACT }, .flags = VE, .unit = "sws_flags" },
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{ "error_diffusion", "error diffusion dither", 0, AV_OPT_TYPE_CONST, { .i64 = SWS_ERROR_DIFFUSION}, .flags = VE, .unit = "sws_flags" },
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{ "param0", "scaler param 0", OFFSET(scaler_params[0]), AV_OPT_TYPE_DOUBLE, { .dbl = SWS_PARAM_DEFAULT }, INT_MIN, INT_MAX, VE },
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{ "param1", "scaler param 1", OFFSET(scaler_params[1]), AV_OPT_TYPE_DOUBLE, { .dbl = SWS_PARAM_DEFAULT }, INT_MIN, INT_MAX, VE },
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{ "srcw", "source width", OFFSET(src_w), AV_OPT_TYPE_INT, { .i64 = 16 }, 1, INT_MAX, VE },
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{ "srch", "source height", OFFSET(src_h), AV_OPT_TYPE_INT, { .i64 = 16 }, 1, INT_MAX, VE },
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{ "dstw", "destination width", OFFSET(dst_w), AV_OPT_TYPE_INT, { .i64 = 16 }, 1, INT_MAX, VE },
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{ "dsth", "destination height", OFFSET(dst_h), AV_OPT_TYPE_INT, { .i64 = 16 }, 1, INT_MAX, VE },
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{ "src_format", "source format", OFFSET(src_format), AV_OPT_TYPE_PIXEL_FMT, { .i64 = DEFAULT }, 0, INT_MAX, VE },
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{ "dst_format", "destination format", OFFSET(dst_format), AV_OPT_TYPE_PIXEL_FMT, { .i64 = DEFAULT }, 0, INT_MAX, VE },
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{ "src_range", "source is full range", OFFSET(src_range), AV_OPT_TYPE_BOOL, { .i64 = DEFAULT }, 0, 1, VE },
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{ "dst_range", "destination is full range", OFFSET(dst_range), AV_OPT_TYPE_BOOL, { .i64 = DEFAULT }, 0, 1, VE },
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{ "gamma", "gamma correct scaling", OFFSET(gamma_flag), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
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{ "src_v_chr_pos", "source vertical chroma position in luma grid/256" , OFFSET(src_v_chr_pos), AV_OPT_TYPE_INT, { .i64 = -513 }, -513, 1024, VE },
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{ "src_h_chr_pos", "source horizontal chroma position in luma grid/256", OFFSET(src_h_chr_pos), AV_OPT_TYPE_INT, { .i64 = -513 }, -513, 1024, VE },
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{ "dst_v_chr_pos", "destination vertical chroma position in luma grid/256" , OFFSET(dst_v_chr_pos), AV_OPT_TYPE_INT, { .i64 = -513 }, -513, 1024, VE },
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{ "dst_h_chr_pos", "destination horizontal chroma position in luma grid/256", OFFSET(dst_h_chr_pos), AV_OPT_TYPE_INT, { .i64 = -513 }, -513, 1024, VE },
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{ "sws_dither", "set dithering algorithm", OFFSET(dither), AV_OPT_TYPE_INT, { .i64 = SWS_DITHER_AUTO }, .flags = VE, .unit = "sws_dither", .max = SWS_DITHER_NB - 1 },
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{ "auto", "automatic selection", 0, AV_OPT_TYPE_CONST, { .i64 = SWS_DITHER_AUTO }, .flags = VE, .unit = "sws_dither" },
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{ "bayer", "ordered matrix dither", 0, AV_OPT_TYPE_CONST, { .i64 = SWS_DITHER_BAYER }, .flags = VE, .unit = "sws_dither" },
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{ "ed", "full error diffusion", 0, AV_OPT_TYPE_CONST, { .i64 = SWS_DITHER_ED }, .flags = VE, .unit = "sws_dither" },
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{ "a_dither", "arithmetic addition dither", 0, AV_OPT_TYPE_CONST, { .i64 = SWS_DITHER_A_DITHER }, .flags = VE, .unit = "sws_dither" },
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{ "x_dither", "arithmetic xor dither", 0, AV_OPT_TYPE_CONST, { .i64 = SWS_DITHER_X_DITHER }, .flags = VE, .unit = "sws_dither" },
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{ "alphablend", "mode for alpha -> non alpha", OFFSET(alpha_blend), AV_OPT_TYPE_INT, { .i64 = SWS_ALPHA_BLEND_NONE}, .flags = VE, .unit = "alphablend", .max = SWS_ALPHA_BLEND_NB - 1 },
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{ "none", "ignore alpha", 0, AV_OPT_TYPE_CONST, { .i64 = SWS_ALPHA_BLEND_NONE}, .flags = VE, .unit = "alphablend" },
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{ "uniform_color", "blend onto a uniform color", 0, AV_OPT_TYPE_CONST, { .i64 = SWS_ALPHA_BLEND_UNIFORM}, .flags = VE, .unit = "alphablend" },
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{ "checkerboard", "blend onto a checkerboard", 0, AV_OPT_TYPE_CONST, { .i64 = SWS_ALPHA_BLEND_CHECKERBOARD}, .flags = VE, .unit = "alphablend" },
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{ "threads", "number of threads", OFFSET(threads), AV_OPT_TYPE_INT, {.i64 = 1 }, .flags = VE, .unit = "threads", .max = INT_MAX },
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{ "auto", "automatic selection", 0, AV_OPT_TYPE_CONST, {.i64 = 0 }, .flags = VE, .unit = "threads" },
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{ NULL }
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};
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const AVClass ff_sws_context_class = {
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.class_name = "SWScaler",
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.item_name = sws_context_to_name,
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.option = swscale_options,
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.parent_log_context_offset = offsetof(SwsInternal, parent),
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.category = AV_CLASS_CATEGORY_SWSCALER,
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.version = LIBAVUTIL_VERSION_INT,
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};
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const AVClass *sws_get_class(void)
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{
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return &ff_sws_context_class;
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}
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