diff options
author | Paul B Mahol <onemda@gmail.com> | 2017-12-03 11:59:58 +0100 |
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committer | Paul B Mahol <onemda@gmail.com> | 2017-12-06 15:42:23 +0100 |
commit | 53855e3c040a4a7315f137682a6285729ceddc8e (patch) | |
tree | 1d3c1a2119a794c479ee4765894767dbc3b649d4 /libavfilter/vf_setparams.c | |
parent | c8bd2c7d09bfc71795e91f0a9aeb4b8a6833eff2 (diff) |
avfilter: add setrange filter
Signed-off-by: Paul B Mahol <onemda@gmail.com>
Diffstat (limited to 'libavfilter/vf_setparams.c')
-rw-r--r-- | libavfilter/vf_setparams.c | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/libavfilter/vf_setparams.c b/libavfilter/vf_setparams.c new file mode 100644 index 0000000000..8427f98ba8 --- /dev/null +++ b/libavfilter/vf_setparams.c @@ -0,0 +1,83 @@ +/* + * 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 "libavutil/pixfmt.h" +#include "libavutil/opt.h" +#include "avfilter.h" +#include "internal.h" +#include "video.h" + +typedef struct SetParamsContext { + const AVClass *class; + int color_range; +} SetParamsContext; + +#define OFFSET(x) offsetof(SetParamsContext, x) +#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM + +static const AVOption setrange_options[] = { + {"range", "select color range", OFFSET(color_range), AV_OPT_TYPE_INT, {.i64=-1},-1, AVCOL_RANGE_NB-1, FLAGS, "range"}, + {"auto", "keep the same color range", 0, AV_OPT_TYPE_CONST, {.i64=-1}, 0, 0, FLAGS, "range"}, + {"unspecified", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCOL_RANGE_UNSPECIFIED}, 0, 0, FLAGS, "range"}, + {"unknown", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCOL_RANGE_UNSPECIFIED}, 0, 0, FLAGS, "range"}, + {"limited", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCOL_RANGE_MPEG}, 0, 0, FLAGS, "range"}, + {"tv", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCOL_RANGE_MPEG}, 0, 0, FLAGS, "range"}, + {"mpeg", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCOL_RANGE_MPEG}, 0, 0, FLAGS, "range"}, + {"full", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCOL_RANGE_JPEG}, 0, 0, FLAGS, "range"}, + {"pc", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCOL_RANGE_JPEG}, 0, 0, FLAGS, "range"}, + {"jpeg", NULL, 0, AV_OPT_TYPE_CONST, {.i64=AVCOL_RANGE_JPEG}, 0, 0, FLAGS, "range"}, + {NULL} +}; + +AVFILTER_DEFINE_CLASS(setrange); + +static int filter_frame(AVFilterLink *inlink, AVFrame *frame) +{ + AVFilterContext *ctx = inlink->dst; + SetParamsContext *s = ctx->priv; + + if (s->color_range >= 0) + frame->color_range = s->color_range; + return ff_filter_frame(ctx->outputs[0], frame); +} + +static const AVFilterPad inputs[] = { + { + .name = "default", + .type = AVMEDIA_TYPE_VIDEO, + .filter_frame = filter_frame, + }, + { NULL } +}; + +static const AVFilterPad outputs[] = { + { + .name = "default", + .type = AVMEDIA_TYPE_VIDEO, + }, + { NULL } +}; + +AVFilter ff_vf_setrange = { + .name = "setrange", + .description = NULL_IF_CONFIG_SMALL("Force color range for the output video frame."), + .priv_size = sizeof(SetParamsContext), + .priv_class = &setrange_class, + .inputs = inputs, + .outputs = outputs, +}; |