| 1 | /* |
| 2 | * This file is part of FFmpeg. |
| 3 | * |
| 4 | * FFmpeg is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU Lesser General Public |
| 6 | * License as published by the Free Software Foundation; either |
| 7 | * version 2.1 of the License, or (at your option) any later version. |
| 8 | * |
| 9 | * FFmpeg is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 12 | * Lesser General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU Lesser General Public |
| 15 | * License along with FFmpeg; if not, write to the Free Software |
| 16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 17 | */ |
| 18 | |
| 19 | /** |
| 20 | * @file |
| 21 | * copy video filter |
| 22 | */ |
| 23 | |
| 24 | #include "libavutil/imgutils.h" |
| 25 | #include "libavutil/internal.h" |
| 26 | #include "avfilter.h" |
| 27 | #include "internal.h" |
| 28 | #include "video.h" |
| 29 | |
| 30 | static int filter_frame(AVFilterLink *inlink, AVFrame *in) |
| 31 | { |
| 32 | AVFilterLink *outlink = inlink->dst->outputs[0]; |
| 33 | AVFrame *out = ff_get_video_buffer(outlink, in->width, in->height); |
| 34 | |
| 35 | if (!out) { |
| 36 | av_frame_free(&in); |
| 37 | return AVERROR(ENOMEM); |
| 38 | } |
| 39 | av_frame_copy_props(out, in); |
| 40 | av_frame_copy(out, in); |
| 41 | av_frame_free(&in); |
| 42 | return ff_filter_frame(outlink, out); |
| 43 | } |
| 44 | |
| 45 | static const AVFilterPad avfilter_vf_copy_inputs[] = { |
| 46 | { |
| 47 | .name = "default", |
| 48 | .type = AVMEDIA_TYPE_VIDEO, |
| 49 | .filter_frame = filter_frame, |
| 50 | }, |
| 51 | { NULL } |
| 52 | }; |
| 53 | |
| 54 | static const AVFilterPad avfilter_vf_copy_outputs[] = { |
| 55 | { |
| 56 | .name = "default", |
| 57 | .type = AVMEDIA_TYPE_VIDEO, |
| 58 | }, |
| 59 | { NULL } |
| 60 | }; |
| 61 | |
| 62 | AVFilter ff_vf_copy = { |
| 63 | .name = "copy", |
| 64 | .description = NULL_IF_CONFIG_SMALL("Copy the input video unchanged to the output."), |
| 65 | .inputs = avfilter_vf_copy_inputs, |
| 66 | .outputs = avfilter_vf_copy_outputs, |
| 67 | }; |