b7d45d0b | /* * Copyright (c) 2012 Stefano Sabatini * * 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 */ /** * @file * set field order */ |
642a60f1 | #include "libavutil/opt.h" |
b7d45d0b | #include "avfilter.h" |
7f154bd5 | #include "internal.h" |
c9e183b4 | #include "video.h" |
b7d45d0b | |
459414b4 | enum SetFieldMode { MODE_AUTO = -1, MODE_BFF, MODE_TFF, MODE_PROG, }; |
ed93ed5e | typedef struct SetFieldContext { |
642a60f1 | const AVClass *class; |
3a23ec0d | int mode; ///< SetFieldMode |
b7d45d0b | } SetFieldContext; |
642a60f1 | #define OFFSET(x) offsetof(SetFieldContext, x) #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM static const AVOption setfield_options[] = { {"mode", "select interlace mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=MODE_AUTO}, -1, MODE_PROG, FLAGS, "mode"}, {"auto", "keep the same input field", 0, AV_OPT_TYPE_CONST, {.i64=MODE_AUTO}, INT_MIN, INT_MAX, FLAGS, "mode"}, {"bff", "mark as bottom-field-first", 0, AV_OPT_TYPE_CONST, {.i64=MODE_BFF}, INT_MIN, INT_MAX, FLAGS, "mode"}, {"tff", "mark as top-field-first", 0, AV_OPT_TYPE_CONST, {.i64=MODE_TFF}, INT_MIN, INT_MAX, FLAGS, "mode"}, {"prog", "mark as progressive", 0, AV_OPT_TYPE_CONST, {.i64=MODE_PROG}, INT_MIN, INT_MAX, FLAGS, "mode"}, {NULL} }; AVFILTER_DEFINE_CLASS(setfield); |
a05a44e2 | static int filter_frame(AVFilterLink *inlink, AVFrame *picref) |
b7d45d0b | { SetFieldContext *setfield = inlink->dst->priv; |
459414b4 | if (setfield->mode == MODE_PROG) { |
a05a44e2 | picref->interlaced_frame = 0; |
459414b4 | } else if (setfield->mode != MODE_AUTO) { |
a05a44e2 | picref->interlaced_frame = 1; picref->top_field_first = setfield->mode; |
b7d45d0b | } |
7f154bd5 | return ff_filter_frame(inlink->dst->outputs[0], picref); |
b7d45d0b | } |
2d9d4440 | static const AVFilterPad setfield_inputs[] = { { |
b211607b | .name = "default", .type = AVMEDIA_TYPE_VIDEO, .filter_frame = filter_frame, |
2d9d4440 | }, { NULL } }; static const AVFilterPad setfield_outputs[] = { { .name = "default", .type = AVMEDIA_TYPE_VIDEO, }, { NULL } }; |
325f6e0a | AVFilter ff_vf_setfield = { |
b211607b | .name = "setfield", |
b7d45d0b | .description = NULL_IF_CONFIG_SMALL("Force field for the output video frame."), |
b211607b | .priv_size = sizeof(SetFieldContext), .priv_class = &setfield_class, .inputs = setfield_inputs, .outputs = setfield_outputs, |
b7d45d0b | }; |