2 * Copyright (c) 2002 Michael Niedermayer <michaelni@gmx.at>
4 * This file is part of FFmpeg.
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.
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.
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
31 static AVFilterBufferRef *get_video_buffer(AVFilterLink *link, int perms,
34 AVFilterBufferRef *picref =
35 ff_default_get_video_buffer(link, perms, w, h);
39 tmp = picref->data[2];
40 picref->data[2] = picref->data[1];
41 picref->data[1] = tmp;
43 tmp2 = picref->linesize[2];
44 picref->linesize[2] = picref->linesize[1];
45 picref->linesize[1] = tmp2;
50 static int filter_frame(AVFilterLink *link, AVFilterBufferRef *inpicref)
55 tmp_data = inpicref->data[1];
56 inpicref->data[1] = inpicref->data[2];
57 inpicref->data[2] = tmp_data;
59 tmp_linesize = inpicref->linesize[1];
60 inpicref->linesize[1] = inpicref->linesize[2];
61 inpicref->linesize[2] = tmp_linesize;
63 return ff_filter_frame(link->dst->outputs[0], inpicref);
66 static int query_formats(AVFilterContext *ctx)
68 static const enum AVPixelFormat pix_fmts[] = {
69 AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVA420P,
70 AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVA444P,
71 AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUVJ440P,
72 AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVJ422P,
77 ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
81 static const AVFilterPad swapuv_inputs[] = {
84 .type = AVMEDIA_TYPE_VIDEO,
85 .get_video_buffer = get_video_buffer,
86 .filter_frame = filter_frame,
91 static const AVFilterPad swapuv_outputs[] = {
94 .type = AVMEDIA_TYPE_VIDEO,
99 AVFilter avfilter_vf_swapuv = {
101 .description = NULL_IF_CONFIG_SMALL("Swap U and V components."),
103 .query_formats = query_formats,
104 .inputs = swapuv_inputs,
105 .outputs = swapuv_outputs,