options.c

   1 /*
   2  * Copyright (C) 2001-2003 Michael Niedermayer <michaelni@gmx.at>
   3  *
   4  * This file is part of FFmpeg.
   5  *
   6  * FFmpeg is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * FFmpeg is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with FFmpeg; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  19  */
  20
  21 #include "libavutil/avutil.h"
  22 #include "libavutil/pixfmt.h"
  23 #include "libavcodec/opt.h"
  24 #include "swscale.h"
  25 #include "swscale_internal.h"
  26
  27 static const char * sws_context_to_name(void * ptr)
  28 {
  29     return "swscaler";
  30 }
  31
  32 #define OFFSET(x) offsetof(SwsContext, x)
  33 #define DEFAULT 0
  34 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
  35
  36 static const AVOption options[] = {
  37     { "sws_flags", "scaler/cpu flags", OFFSET(flags), FF_OPT_TYPE_FLAGS, DEFAULT, 0, UINT_MAX, VE, "sws_flags" },
  38     { "fast_bilinear", "fast bilinear", 0, FF_OPT_TYPE_CONST, SWS_FAST_BILINEAR, INT_MIN, INT_MAX, VE, "sws_flags" },
  39     { "bilinear", "bilinear", 0, FF_OPT_TYPE_CONST, SWS_BILINEAR, INT_MIN, INT_MAX, VE, "sws_flags" },
  40     { "bicubic", "bicubic", 0, FF_OPT_TYPE_CONST, SWS_BICUBIC, INT_MIN, INT_MAX, VE, "sws_flags" },
  41     { "experimental", "experimental", 0, FF_OPT_TYPE_CONST, SWS_X, INT_MIN, INT_MAX, VE, "sws_flags" },
  42     { "neighbor", "nearest neighbor", 0, FF_OPT_TYPE_CONST, SWS_POINT, INT_MIN, INT_MAX, VE, "sws_flags" },
  43     { "area", "averaging area", 0, FF_OPT_TYPE_CONST, SWS_AREA, INT_MIN, INT_MAX, VE, "sws_flags" },
  44     { "bicublin", "luma bicubic, chroma bilinear", 0, FF_OPT_TYPE_CONST, SWS_BICUBLIN, INT_MIN, INT_MAX, VE, "sws_flags" },
  45     { "gauss", "gaussian", 0, FF_OPT_TYPE_CONST, SWS_GAUSS, INT_MIN, INT_MAX, VE, "sws_flags" },
  46     { "sinc", "sinc", 0, FF_OPT_TYPE_CONST, SWS_SINC, INT_MIN, INT_MAX, VE, "sws_flags" },
  47     { "lanczos", "lanczos", 0, FF_OPT_TYPE_CONST, SWS_LANCZOS, INT_MIN, INT_MAX, VE, "sws_flags" },
  48     { "spline", "natural bicubic spline", 0, FF_OPT_TYPE_CONST, SWS_SPLINE, INT_MIN, INT_MAX, VE, "sws_flags" },
  49     { "print_info", "print info", 0, FF_OPT_TYPE_CONST, SWS_PRINT_INFO, INT_MIN, INT_MAX, VE, "sws_flags" },
  50     { "accurate_rnd", "accurate rounding", 0, FF_OPT_TYPE_CONST, SWS_ACCURATE_RND, INT_MIN, INT_MAX, VE, "sws_flags" },
  51     { "mmx", "MMX SIMD acceleration", 0, FF_OPT_TYPE_CONST, SWS_CPU_CAPS_MMX, INT_MIN, INT_MAX, VE, "sws_flags" },
  52     { "mmx2", "MMX2 SIMD acceleration", 0, FF_OPT_TYPE_CONST, SWS_CPU_CAPS_MMX2, INT_MIN, INT_MAX, VE, "sws_flags" },
  53     { "sse2", "SSE2 SIMD acceleration", 0, FF_OPT_TYPE_CONST, SWS_CPU_CAPS_SSE2, INT_MIN, INT_MAX, VE, "sws_flags" },
  54     { "3dnow", "3DNOW SIMD acceleration", 0, FF_OPT_TYPE_CONST, SWS_CPU_CAPS_3DNOW, INT_MIN, INT_MAX, VE, "sws_flags" },
  55     { "altivec", "AltiVec SIMD acceleration", 0, FF_OPT_TYPE_CONST, SWS_CPU_CAPS_ALTIVEC, INT_MIN, INT_MAX, VE, "sws_flags" },
  56     { "bfin", "Blackfin SIMD acceleration", 0, FF_OPT_TYPE_CONST, SWS_CPU_CAPS_BFIN, INT_MIN, INT_MAX, VE, "sws_flags" },
  57     { "full_chroma_int", "full chroma interpolation", 0 , FF_OPT_TYPE_CONST, SWS_FULL_CHR_H_INT, INT_MIN, INT_MAX, VE, "sws_flags" },
  58     { "full_chroma_inp", "full chroma input", 0 , FF_OPT_TYPE_CONST, SWS_FULL_CHR_H_INP, INT_MIN, INT_MAX, VE, "sws_flags" },
  59     { "bitexact", "", 0 , FF_OPT_TYPE_CONST, SWS_BITEXACT, INT_MIN, INT_MAX, VE, "sws_flags" },
  60
  61     { "srcw", "source width"      , OFFSET(srcW), FF_OPT_TYPE_INT, 16, 1, INT_MAX, VE },
  62     { "srch", "source height"     , OFFSET(srcH), FF_OPT_TYPE_INT, 16, 1, INT_MAX, VE },
  63     { "dstw", "destination width" , OFFSET(dstW), FF_OPT_TYPE_INT, 16, 1, INT_MAX, VE },
  64     { "dsth", "destination height", OFFSET(dstH), FF_OPT_TYPE_INT, 16, 1, INT_MAX, VE },
  65     { "src_format", "source format"     , OFFSET(srcFormat), FF_OPT_TYPE_INT, DEFAULT, 0, PIX_FMT_NB-1, VE },
  66     { "dst_format", "destination format", OFFSET(dstFormat), FF_OPT_TYPE_INT, DEFAULT, 0, PIX_FMT_NB-1, VE },
  67     { "src_range" , "source range"      , OFFSET(srcRange) , FF_OPT_TYPE_INT, DEFAULT, 0, 1, VE },
  68     { "dst_range" , "destination range" , OFFSET(dstRange) , FF_OPT_TYPE_INT, DEFAULT, 0, 1, VE },
  69     { "param0" , "scaler param 0" , OFFSET(param[0]) , FF_OPT_TYPE_DOUBLE, SWS_PARAM_DEFAULT, INT_MIN, INT_MAX, VE },
  70     { "param1" , "scaler param 1" , OFFSET(param[1]) , FF_OPT_TYPE_DOUBLE, SWS_PARAM_DEFAULT, INT_MIN, INT_MAX, VE },
  71
  72     { NULL }
  73 };
  74
  75 const AVClass sws_context_class = { "SWScaler", sws_context_to_name, options };