diff options
| -rw-r--r-- | doc/libavfilter.texi | 10 | ||||
| -rw-r--r-- | libavfilter/Makefile | 2 | ||||
| -rw-r--r-- | libavfilter/allfilters.c | 2 | ||||
| -rw-r--r-- | libavfilter/avfilter.h | 2 | ||||
| -rw-r--r-- | libavfilter/vsink_nullsink.c | 45 |
5 files changed, 60 insertions, 1 deletions
diff --git a/doc/libavfilter.texi b/doc/libavfilter.texi index 28f24bce9f..5bb5235898 100644 --- a/doc/libavfilter.texi +++ b/doc/libavfilter.texi @@ -213,4 +213,14 @@ the configured source. The default values of ``width'' and ``height'' are respectively 352 and 288 (corresponding to the CIF size format). +@chapter Available video sinks + +Below is a description of the currently available video sinks. + +@section nullsink + +Null video sink, do absolutely nothing with the input video. It is +mainly useful as a template and to be employed in analysis / debugging +tools. + @bye diff --git a/libavfilter/Makefile b/libavfilter/Makefile index 08d60800f4..fd95e35c80 100644 --- a/libavfilter/Makefile +++ b/libavfilter/Makefile @@ -22,4 +22,6 @@ OBJS-$(CONFIG_VFLIP_FILTER) += vf_vflip.o OBJS-$(CONFIG_NULLSRC_FILTER) += vsrc_nullsrc.o +OBJS-$(CONFIG_NULLSINK_FILTER) += vsink_nullsink.o + include $(SUBDIR)../subdir.mak diff --git a/libavfilter/allfilters.c b/libavfilter/allfilters.c index 81eec21598..4be7642da9 100644 --- a/libavfilter/allfilters.c +++ b/libavfilter/allfilters.c @@ -43,4 +43,6 @@ void avfilter_register_all(void) REGISTER_FILTER (VFLIP, vflip, vf); REGISTER_FILTER (NULLSRC, nullsrc, vsrc); + + REGISTER_FILTER(NULLSINK, nullsink, vsink); } diff --git a/libavfilter/avfilter.h b/libavfilter/avfilter.h index 5b85427ac1..832f421bee 100644 --- a/libavfilter/avfilter.h +++ b/libavfilter/avfilter.h @@ -25,7 +25,7 @@ #include "libavutil/avutil.h" #define LIBAVFILTER_VERSION_MAJOR 1 -#define LIBAVFILTER_VERSION_MINOR 16 +#define LIBAVFILTER_VERSION_MINOR 17 #define LIBAVFILTER_VERSION_MICRO 0 #define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \ diff --git a/libavfilter/vsink_nullsink.c b/libavfilter/vsink_nullsink.c new file mode 100644 index 0000000000..d87f20400b --- /dev/null +++ b/libavfilter/vsink_nullsink.c @@ -0,0 +1,45 @@ +/* + * 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 "avfilter.h" + +static void start_frame(AVFilterLink *link, AVFilterPicRef *picref) +{ +} + +static void end_frame(AVFilterLink *link) +{ +} + +AVFilter avfilter_vsink_nullsink = { + .name = "nullsink", + .description = "Do absolutely nothing with the input video.", + + .priv_size = 0, + + .inputs = (AVFilterPad[]) { + { + .name = "default", + .type = CODEC_TYPE_VIDEO, + .start_frame = start_frame, + .end_frame = end_frame, + }, + { .name = NULL}, + }, + .outputs = (AVFilterPad[]) {{ .name = NULL }}, +}; |