| 1 | /* |
| 2 | * Copyright (c) 2010 S.N. Hemanth Meenakshisundaram <smeenaks@ucsd.edu> |
| 3 | * This file is part of FFmpeg. |
| 4 | * |
| 5 | * FFmpeg is free software; you can redistribute it and/or |
| 6 | * modify it under the terms of the GNU Lesser General Public |
| 7 | * License as published by the Free Software Foundation; either |
| 8 | * version 2.1 of the License, or (at your option) any later version. |
| 9 | * |
| 10 | * FFmpeg is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | * Lesser General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU Lesser General Public |
| 16 | * License along with FFmpeg; if not, write to the Free Software |
| 17 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 18 | */ |
| 19 | |
| 20 | /** |
| 21 | * @file |
| 22 | * null audio filter |
| 23 | */ |
| 24 | |
| 25 | #include "audio.h" |
| 26 | #include "avfilter.h" |
| 27 | #include "internal.h" |
| 28 | #include "libavutil/internal.h" |
| 29 | |
| 30 | static const AVFilterPad avfilter_af_anull_inputs[] = { |
| 31 | { |
| 32 | .name = "default", |
| 33 | .type = AVMEDIA_TYPE_AUDIO, |
| 34 | }, |
| 35 | { NULL } |
| 36 | }; |
| 37 | |
| 38 | static const AVFilterPad avfilter_af_anull_outputs[] = { |
| 39 | { |
| 40 | .name = "default", |
| 41 | .type = AVMEDIA_TYPE_AUDIO, |
| 42 | }, |
| 43 | { NULL } |
| 44 | }; |
| 45 | |
| 46 | AVFilter ff_af_anull = { |
| 47 | .name = "anull", |
| 48 | .description = NULL_IF_CONFIG_SMALL("Pass the source unchanged to the output."), |
| 49 | .query_formats = ff_query_formats_all, |
| 50 | .inputs = avfilter_af_anull_inputs, |
| 51 | .outputs = avfilter_af_anull_outputs, |
| 52 | }; |