mirror of
https://github.com/FFmpeg/FFmpeg.git
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84 lines
3.2 KiB
C
84 lines
3.2 KiB
C
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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/pixfmt.h"
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#include "libavutil/opt.h"
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#include "avfilter.h"
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#include "internal.h"
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#include "video.h"
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typedef struct SetParamsContext {
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const AVClass *class;
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int color_range;
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} SetParamsContext;
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#define OFFSET(x) offsetof(SetParamsContext, x)
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#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
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static const AVOption setrange_options[] = {
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{"range", "select color range", OFFSET(color_range), AV_OPT_TYPE_INT, {.i64=-1},-1, AVCOL_RANGE_NB-1, FLAGS, "range"},
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{"auto", "keep the same color range", 0, AV_OPT_TYPE_CONST, {.i64=-1}, 0, 0, FLAGS, "range"},
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{"unspecified", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCOL_RANGE_UNSPECIFIED}, 0, 0, FLAGS, "range"},
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{"unknown", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCOL_RANGE_UNSPECIFIED}, 0, 0, FLAGS, "range"},
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{"limited", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCOL_RANGE_MPEG}, 0, 0, FLAGS, "range"},
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{"tv", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCOL_RANGE_MPEG}, 0, 0, FLAGS, "range"},
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{"mpeg", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCOL_RANGE_MPEG}, 0, 0, FLAGS, "range"},
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{"full", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCOL_RANGE_JPEG}, 0, 0, FLAGS, "range"},
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{"pc", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCOL_RANGE_JPEG}, 0, 0, FLAGS, "range"},
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{"jpeg", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCOL_RANGE_JPEG}, 0, 0, FLAGS, "range"},
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{NULL}
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};
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AVFILTER_DEFINE_CLASS(setrange);
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static int filter_frame(AVFilterLink *inlink, AVFrame *frame)
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{
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AVFilterContext *ctx = inlink->dst;
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SetParamsContext *s = ctx->priv;
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if (s->color_range >= 0)
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frame->color_range = s->color_range;
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return ff_filter_frame(ctx->outputs[0], frame);
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}
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static const AVFilterPad inputs[] = {
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{
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.name = "default",
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.type = AVMEDIA_TYPE_VIDEO,
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.filter_frame = filter_frame,
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},
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{ NULL }
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};
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static const AVFilterPad outputs[] = {
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{
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.name = "default",
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.type = AVMEDIA_TYPE_VIDEO,
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},
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{ NULL }
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};
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AVFilter ff_vf_setrange = {
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.name = "setrange",
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.description = NULL_IF_CONFIG_SMALL("Force color range for the output video frame."),
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.priv_size = sizeof(SetParamsContext),
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.priv_class = &setrange_class,
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.inputs = inputs,
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.outputs = outputs,
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};
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