| /* |
| * 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 |
| * copy video filter |
| */ |
| |
| #include "libavutil/imgutils.h" |
| #include "libavutil/internal.h" |
| #include "avfilter.h" |
| #include "internal.h" |
| #include "video.h" |
| |
| static int query_formats(AVFilterContext *ctx) |
| { |
| AVFilterFormats *formats = NULL; |
| int fmt; |
| |
| for (fmt = 0; av_pix_fmt_desc_get(fmt); fmt++) { |
| const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(fmt); |
| int ret; |
| if (desc->flags & AV_PIX_FMT_FLAG_HWACCEL) |
| continue; |
| if ((ret = ff_add_format(&formats, fmt)) < 0) |
| return ret; |
| } |
| |
| return ff_set_common_formats(ctx, formats); |
| } |
| |
| static int filter_frame(AVFilterLink *inlink, AVFrame *in) |
| { |
| AVFilterLink *outlink = inlink->dst->outputs[0]; |
| AVFrame *out = ff_get_video_buffer(outlink, in->width, in->height); |
| int ret; |
| |
| if (!out) { |
| ret = AVERROR(ENOMEM); |
| goto fail; |
| } |
| |
| ret = av_frame_copy_props(out, in); |
| if (ret < 0) |
| goto fail; |
| ret = av_frame_copy(out, in); |
| if (ret < 0) |
| goto fail; |
| av_frame_free(&in); |
| return ff_filter_frame(outlink, out); |
| fail: |
| av_frame_free(&in); |
| av_frame_free(&out); |
| return ret; |
| } |
| |
| static const AVFilterPad avfilter_vf_copy_inputs[] = { |
| { |
| .name = "default", |
| .type = AVMEDIA_TYPE_VIDEO, |
| .filter_frame = filter_frame, |
| }, |
| { NULL } |
| }; |
| |
| static const AVFilterPad avfilter_vf_copy_outputs[] = { |
| { |
| .name = "default", |
| .type = AVMEDIA_TYPE_VIDEO, |
| }, |
| { NULL } |
| }; |
| |
| AVFilter ff_vf_copy = { |
| .name = "copy", |
| .description = NULL_IF_CONFIG_SMALL("Copy the input video unchanged to the output."), |
| .inputs = avfilter_vf_copy_inputs, |
| .outputs = avfilter_vf_copy_outputs, |
| .query_formats = query_formats, |
| }; |