| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * Copyright (c) 2002 Michael Niedermayer <michaelni@gmx.at> | ||
| 3 | * | ||
| 4 | * This file is part of FFmpeg. | ||
| 5 | * | ||
| 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. | ||
| 10 | * | ||
| 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. | ||
| 15 | * | ||
| 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 | ||
| 19 | */ | ||
| 20 | |||
| 21 | /** | ||
| 22 | * @file | ||
| 23 | * swap UV filter | ||
| 24 | */ | ||
| 25 | |||
| 26 | #include "libavutil/pixdesc.h" | ||
| 27 | #include "avfilter.h" | ||
| 28 | #include "filters.h" | ||
| 29 | #include "formats.h" | ||
| 30 | #include "video.h" | ||
| 31 | |||
| 32 | 139 | static void do_swap(AVFrame *frame) | |
| 33 | { | ||
| 34 | 139 | FFSWAP(uint8_t*, frame->data[1], frame->data[2]); | |
| 35 | 139 | FFSWAP(int, frame->linesize[1], frame->linesize[2]); | |
| 36 | 139 | FFSWAP(AVBufferRef*, frame->buf[1], frame->buf[2]); | |
| 37 | 139 | } | |
| 38 | |||
| 39 | 69 | static AVFrame *get_video_buffer(AVFilterLink *link, int w, int h) | |
| 40 | { | ||
| 41 | 69 | AVFrame *picref = ff_default_get_video_buffer(link, w, h); | |
| 42 | 69 | do_swap(picref); | |
| 43 | 69 | return picref; | |
| 44 | } | ||
| 45 | |||
| 46 | 70 | static int filter_frame(AVFilterLink *link, AVFrame *inpicref) | |
| 47 | { | ||
| 48 | 70 | do_swap(inpicref); | |
| 49 | 70 | return ff_filter_frame(link->dst->outputs[0], inpicref); | |
| 50 | } | ||
| 51 | |||
| 52 | 16188 | static int is_planar_yuv(const AVPixFmtDescriptor *desc) | |
| 53 | { | ||
| 54 | int i; | ||
| 55 | |||
| 56 |
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16188 | if (desc->flags & ~(AV_PIX_FMT_FLAG_BE | AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_ALPHA) || |
| 57 |
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8804 | desc->nb_components < 3 || |
| 58 |
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7810 | (desc->comp[1].depth != desc->comp[2].depth)) |
| 59 | 8378 | return 0; | |
| 60 |
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26341 | for (i = 0; i < desc->nb_components; i++) { |
| 61 |
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21371 | if (desc->comp[i].offset != 0 || |
| 62 |
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19667 | desc->comp[i].shift != 0 || |
| 63 |
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18531 | desc->comp[i].plane != i) |
| 64 | 2840 | return 0; | |
| 65 | } | ||
| 66 | |||
| 67 | 4970 | return 1; | |
| 68 | } | ||
| 69 | |||
| 70 | 71 | static int query_formats(AVFilterContext *ctx) | |
| 71 | { | ||
| 72 | 71 | AVFilterFormats *formats = NULL; | |
| 73 | int fmt, ret; | ||
| 74 | |||
| 75 |
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16259 | for (fmt = 0; av_pix_fmt_desc_get(fmt); fmt++) { |
| 76 | 16188 | const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(fmt); | |
| 77 |
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16188 | if (is_planar_yuv(desc) && (ret = ff_add_format(&formats, fmt)) < 0) |
| 78 | ✗ | return ret; | |
| 79 | } | ||
| 80 | |||
| 81 | 71 | return ff_set_common_formats(ctx, formats); | |
| 82 | } | ||
| 83 | |||
| 84 | static const AVFilterPad swapuv_inputs[] = { | ||
| 85 | { | ||
| 86 | .name = "default", | ||
| 87 | .type = AVMEDIA_TYPE_VIDEO, | ||
| 88 | .get_buffer.video = get_video_buffer, | ||
| 89 | .filter_frame = filter_frame, | ||
| 90 | }, | ||
| 91 | }; | ||
| 92 | |||
| 93 | const AVFilter ff_vf_swapuv = { | ||
| 94 | .name = "swapuv", | ||
| 95 | .description = NULL_IF_CONFIG_SMALL("Swap U and V components."), | ||
| 96 | FILTER_INPUTS(swapuv_inputs), | ||
| 97 | FILTER_OUTPUTS(ff_video_default_filterpad), | ||
| 98 | FILTER_QUERY_FUNC(query_formats), | ||
| 99 | .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC, | ||
| 100 | }; | ||
| 101 |