diff options
Diffstat (limited to 'libavfilter')
| -rw-r--r-- | libavfilter/Makefile | 1 | ||||
| -rw-r--r-- | libavfilter/af_acopy.c | 60 | ||||
| -rw-r--r-- | libavfilter/allfilters.c | 1 |
3 files changed, 62 insertions, 0 deletions
diff --git a/libavfilter/Makefile b/libavfilter/Makefile index de5f992795..f7dfe8ad54 100644 --- a/libavfilter/Makefile +++ b/libavfilter/Makefile @@ -29,6 +29,7 @@ OBJS-$(HAVE_THREADS) += pthread.o # audio filters OBJS-$(CONFIG_ABENCH_FILTER) += f_bench.o OBJS-$(CONFIG_ACOMPRESSOR_FILTER) += af_sidechaincompress.o +OBJS-$(CONFIG_ACOPY_FILTER) += af_acopy.o OBJS-$(CONFIG_ACROSSFADE_FILTER) += af_afade.o OBJS-$(CONFIG_ACRUSHER_FILTER) += af_acrusher.o OBJS-$(CONFIG_ADELAY_FILTER) += af_adelay.o diff --git a/libavfilter/af_acopy.c b/libavfilter/af_acopy.c new file mode 100644 index 0000000000..d849060966 --- /dev/null +++ b/libavfilter/af_acopy.c @@ -0,0 +1,60 @@ +/* + * 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 + */ + +#include "audio.h" +#include "avfilter.h" +#include "internal.h" + +static int filter_frame(AVFilterLink *inlink, AVFrame *in) +{ + AVFilterLink *outlink = inlink->dst->outputs[0]; + AVFrame *out = ff_get_audio_buffer(outlink, in->nb_samples); + + if (!out) { + av_frame_free(&in); + return AVERROR(ENOMEM); + } + av_frame_copy_props(out, in); + av_frame_copy(out, in); + av_frame_free(&in); + return ff_filter_frame(outlink, out); +} + +static const AVFilterPad acopy_inputs[] = { + { + .name = "default", + .type = AVMEDIA_TYPE_AUDIO, + .filter_frame = filter_frame, + }, + { NULL } +}; + +static const AVFilterPad acopy_outputs[] = { + { + .name = "default", + .type = AVMEDIA_TYPE_AUDIO, + }, + { NULL } +}; + +AVFilter ff_af_acopy = { + .name = "acopy", + .description = NULL_IF_CONFIG_SMALL("Copy the input audio unchanged to the output."), + .inputs = acopy_inputs, + .outputs = acopy_outputs, +}; diff --git a/libavfilter/allfilters.c b/libavfilter/allfilters.c index 555c44250b..cd35ae4c9c 100644 --- a/libavfilter/allfilters.c +++ b/libavfilter/allfilters.c @@ -42,6 +42,7 @@ static void register_all(void) { REGISTER_FILTER(ABENCH, abench, af); REGISTER_FILTER(ACOMPRESSOR, acompressor, af); + REGISTER_FILTER(ACOPY, acopy, af); REGISTER_FILTER(ACROSSFADE, acrossfade, af); REGISTER_FILTER(ACRUSHER, acrusher, af); REGISTER_FILTER(ADELAY, adelay, af); |