94 lines
2.8 KiB
C
94 lines
2.8 KiB
C
/*
|
|
* Copyright (c) 2002 Michael Niedermayer <michaelni@gmx.at>
|
|
*
|
|
* 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
|
|
* swap UV filter
|
|
*/
|
|
|
|
#include "avfilter.h"
|
|
|
|
static AVFilterBufferRef *get_video_buffer(AVFilterLink *link, int perms,
|
|
int w, int h)
|
|
{
|
|
AVFilterBufferRef *picref =
|
|
avfilter_default_get_video_buffer(link, perms, w, h);
|
|
uint8_t *tmp;
|
|
int tmp2;
|
|
|
|
tmp = picref->data[2];
|
|
picref->data[2] = picref->data[1];
|
|
picref->data[1] = tmp;
|
|
|
|
tmp2 = picref->linesize[2];
|
|
picref->linesize[2] = picref->linesize[1];
|
|
picref->linesize[1] = tmp2;
|
|
|
|
return picref;
|
|
}
|
|
|
|
static void start_frame(AVFilterLink *link, AVFilterBufferRef *inpicref)
|
|
{
|
|
AVFilterBufferRef *outpicref = avfilter_ref_buffer(inpicref, ~0);
|
|
|
|
outpicref->data[1] = inpicref->data[2];
|
|
outpicref->data[2] = inpicref->data[1];
|
|
|
|
outpicref->linesize[1] = inpicref->linesize[2];
|
|
outpicref->linesize[2] = inpicref->linesize[1];
|
|
|
|
avfilter_start_frame(link->dst->outputs[0], outpicref);
|
|
}
|
|
|
|
static int query_formats(AVFilterContext *ctx)
|
|
{
|
|
static const enum PixelFormat pix_fmts[] = {
|
|
PIX_FMT_YUV420P, PIX_FMT_YUVJ420P, PIX_FMT_YUVA420P,
|
|
PIX_FMT_YUV444P, PIX_FMT_YUVJ444P, PIX_FMT_YUVA444P,
|
|
PIX_FMT_YUV440P, PIX_FMT_YUVJ440P,
|
|
PIX_FMT_YUV422P, PIX_FMT_YUVJ422P,
|
|
PIX_FMT_YUV411P,
|
|
PIX_FMT_NONE,
|
|
};
|
|
|
|
avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts));
|
|
return 0;
|
|
}
|
|
|
|
AVFilter avfilter_vf_swapuv = {
|
|
.name = "swapuv",
|
|
.description = NULL_IF_CONFIG_SMALL("Swap U and V components."),
|
|
.priv_size = 0,
|
|
.query_formats = query_formats,
|
|
|
|
.inputs = (const AVFilterPad[]) {
|
|
{ .name = "default",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.get_video_buffer = get_video_buffer,
|
|
.start_frame = start_frame, },
|
|
{ .name = NULL }
|
|
},
|
|
.outputs = (const AVFilterPad[]) {
|
|
{ .name = "default",
|
|
.type = AVMEDIA_TYPE_VIDEO, },
|
|
{ .name = NULL }
|
|
},
|
|
};
|