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2af8f2cea6
* qatar/master: (27 commits) cmdutils: use new avcodec_is_decoder/encoder() functions. lavc: make codec_is_decoder/encoder() public. lavc: deprecate AVCodecContext.sub_id. libcdio: add a forgotten AVClass to the private context. swscale: remove "cpu flags" from -sws_flags description. proresenc: give user a possibility to alter some encoding parameters vorbisenc: add output buffer overwrite protection libopencore-amrnbenc: fix end-of-stream handling ra144enc: fix end-of-stream handling nellymoserenc: zero any leftover packet bytes nellymoserenc: use proper MDCT overlap delay qpeg: Use bytestream2 functions to prevent buffer overreads. swscale: make %rep unconditional. vp8: convert simple loopfilter x86 assembly to use named arguments. vp8: convert idct x86 assembly to use named arguments. vp8: convert mc x86 assembly to use named arguments. vp8: convert loopfilter x86 assembly to use cpuflags(). vp8: convert idct/mc x86 assembly to use cpuflags(). swscale: remove now unnecessary hack. x86inc: don't "bake" stack_offset in named arguments. ... Conflicts: cmdutils.c doc/APIchanges libavcodec/mpeg12.c libavcodec/options.c libavcodec/qpeg.c libavcodec/utils.c libavcodec/version.h libavdevice/libcdio.c tests/lavf-regression.sh Merged-by: Michael Niedermayer <michaelni@gmx.at>
75 lines
5.8 KiB
C
75 lines
5.8 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/avutil.h"
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#include "libavutil/opt.h"
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#include "libavutil/pixfmt.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 options[] = {
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{ "sws_flags", "scaler flags", OFFSET(flags), AV_OPT_TYPE_FLAGS, { .dbl = DEFAULT }, 0, UINT_MAX, VE, "sws_flags" },
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{ "fast_bilinear", "fast bilinear", 0, AV_OPT_TYPE_CONST, { .dbl = SWS_FAST_BILINEAR }, INT_MIN, INT_MAX, VE, "sws_flags" },
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{ "bilinear", "bilinear", 0, AV_OPT_TYPE_CONST, { .dbl = SWS_BILINEAR }, INT_MIN, INT_MAX, VE, "sws_flags" },
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{ "bicubic", "bicubic", 0, AV_OPT_TYPE_CONST, { .dbl = SWS_BICUBIC }, INT_MIN, INT_MAX, VE, "sws_flags" },
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{ "experimental", "experimental", 0, AV_OPT_TYPE_CONST, { .dbl = SWS_X }, INT_MIN, INT_MAX, VE, "sws_flags" },
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{ "neighbor", "nearest neighbor", 0, AV_OPT_TYPE_CONST, { .dbl = SWS_POINT }, INT_MIN, INT_MAX, VE, "sws_flags" },
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{ "area", "averaging area", 0, AV_OPT_TYPE_CONST, { .dbl = SWS_AREA }, INT_MIN, INT_MAX, VE, "sws_flags" },
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{ "bicublin", "luma bicubic, chroma bilinear", 0, AV_OPT_TYPE_CONST, { .dbl = SWS_BICUBLIN }, INT_MIN, INT_MAX, VE, "sws_flags" },
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{ "gauss", "gaussian", 0, AV_OPT_TYPE_CONST, { .dbl = SWS_GAUSS }, INT_MIN, INT_MAX, VE, "sws_flags" },
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{ "sinc", "sinc", 0, AV_OPT_TYPE_CONST, { .dbl = SWS_SINC }, INT_MIN, INT_MAX, VE, "sws_flags" },
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{ "lanczos", "lanczos", 0, AV_OPT_TYPE_CONST, { .dbl = SWS_LANCZOS }, INT_MIN, INT_MAX, VE, "sws_flags" },
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{ "spline", "natural bicubic spline", 0, AV_OPT_TYPE_CONST, { .dbl = SWS_SPLINE }, INT_MIN, INT_MAX, VE, "sws_flags" },
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{ "print_info", "print info", 0, AV_OPT_TYPE_CONST, { .dbl = SWS_PRINT_INFO }, INT_MIN, INT_MAX, VE, "sws_flags" },
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{ "accurate_rnd", "accurate rounding", 0, AV_OPT_TYPE_CONST, { .dbl = SWS_ACCURATE_RND }, INT_MIN, INT_MAX, VE, "sws_flags" },
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{ "full_chroma_int", "full chroma interpolation", 0, AV_OPT_TYPE_CONST, { .dbl = SWS_FULL_CHR_H_INT }, INT_MIN, INT_MAX, VE, "sws_flags" },
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{ "full_chroma_inp", "full chroma input", 0, AV_OPT_TYPE_CONST, { .dbl = SWS_FULL_CHR_H_INP }, INT_MIN, INT_MAX, VE, "sws_flags" },
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{ "bitexact", "", 0, AV_OPT_TYPE_CONST, { .dbl = SWS_BITEXACT }, INT_MIN, INT_MAX, VE, "sws_flags" },
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{ "srcw", "source width", OFFSET(srcW), AV_OPT_TYPE_INT, { .dbl = 16 }, 1, INT_MAX, VE },
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{ "srch", "source height", OFFSET(srcH), AV_OPT_TYPE_INT, { .dbl = 16 }, 1, INT_MAX, VE },
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{ "dstw", "destination width", OFFSET(dstW), AV_OPT_TYPE_INT, { .dbl = 16 }, 1, INT_MAX, VE },
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{ "dsth", "destination height", OFFSET(dstH), AV_OPT_TYPE_INT, { .dbl = 16 }, 1, INT_MAX, VE },
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{ "src_format", "source format", OFFSET(srcFormat), AV_OPT_TYPE_INT, { .dbl = DEFAULT }, 0, PIX_FMT_NB - 1, VE },
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{ "dst_format", "destination format", OFFSET(dstFormat), AV_OPT_TYPE_INT, { .dbl = DEFAULT }, 0, PIX_FMT_NB - 1, VE },
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{ "src_range", "source range", OFFSET(srcRange), AV_OPT_TYPE_INT, { .dbl = DEFAULT }, 0, 1, VE },
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{ "dst_range", "destination range", OFFSET(dstRange), AV_OPT_TYPE_INT, { .dbl = DEFAULT }, 0, 1, VE },
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{ "param0", "scaler param 0", OFFSET(param[0]), AV_OPT_TYPE_DOUBLE, { .dbl = SWS_PARAM_DEFAULT }, INT_MIN, INT_MAX, VE },
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{ "param1", "scaler param 1", OFFSET(param[1]), AV_OPT_TYPE_DOUBLE, { .dbl = SWS_PARAM_DEFAULT }, INT_MIN, INT_MAX, VE },
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{ NULL }
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};
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const AVClass sws_context_class = { "SWScaler", sws_context_to_name, options };
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const AVClass *sws_get_class(void)
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{
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return &sws_context_class;
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}
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