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(cherry picked from commit fa35d88) Conflicts: Changelog libavfilter/version.h Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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/* | ||
* 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 | ||
*/ | ||
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/** | ||
* @file | ||
* swap UV filter | ||
*/ | ||
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#include "avfilter.h" | ||
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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; | ||
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tmp = picref->data[2]; | ||
picref->data[2] = picref->data[1]; | ||
picref->data[1] = tmp; | ||
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tmp2 = picref->linesize[2]; | ||
picref->linesize[2] = picref->linesize[1]; | ||
picref->linesize[1] = tmp2; | ||
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return picref; | ||
} | ||
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static void start_frame(AVFilterLink *link, AVFilterBufferRef *inpicref) | ||
{ | ||
AVFilterBufferRef *outpicref = avfilter_ref_buffer(inpicref, ~0); | ||
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outpicref->data[1] = inpicref->data[2]; | ||
outpicref->data[2] = inpicref->data[1]; | ||
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outpicref->linesize[1] = inpicref->linesize[2]; | ||
outpicref->linesize[2] = inpicref->linesize[1]; | ||
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avfilter_start_frame(link->dst->outputs[0], outpicref); | ||
} | ||
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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_YUV440P, PIX_FMT_YUVJ440P, | ||
PIX_FMT_YUV422P, PIX_FMT_YUVJ422P, | ||
PIX_FMT_YUV411P, | ||
PIX_FMT_NONE, | ||
}; | ||
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avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts)); | ||
return 0; | ||
} | ||
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AVFilter avfilter_vf_swapuv = { | ||
.name = "swapuv", | ||
.description = NULL_IF_CONFIG_SMALL("Swap U and V components."), | ||
.priv_size = 0, | ||
.query_formats = query_formats, | ||
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.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 } | ||
}, | ||
}; |