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dc72d1dd
编写于
5月 19, 2017
作者:
P
Paul B Mahol
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差异文件
avfilter: add audio surround upmixer
Signed-off-by:
N
Paul B Mahol
<
onemda@gmail.com
>
上级
2934a10f
变更
6
展开全部
隐藏空白更改
内联
并排
Showing
6 changed file
with
869 addition
and
1 deletion
+869
-1
Changelog
Changelog
+1
-0
doc/filters.texi
doc/filters.texi
+30
-0
libavfilter/Makefile
libavfilter/Makefile
+1
-0
libavfilter/af_surround.c
libavfilter/af_surround.c
+835
-0
libavfilter/allfilters.c
libavfilter/allfilters.c
+1
-0
libavfilter/version.h
libavfilter/version.h
+1
-1
未找到文件。
Changelog
浏览文件 @
dc72d1dd
...
...
@@ -16,6 +16,7 @@ version <next>:
- spec compliant VP9 muxing support in MP4
- remove the libnut muxer/demuxer wrappers
- remove the libschroedinger encoder/decoder wrappers
- surround audio filter
version 3.3:
- CrystalHD decoder moved to new decode API
...
...
doc/filters.texi
浏览文件 @
dc72d1dd
...
...
@@ -3792,6 +3792,36 @@ channels. Default is 0.3.
Set level of input signal of original channel. Default is 0.8.
@end table
@section surround
Apply audio surround upmix filter.
This filter allows to produce multichannel output from stereo audio stream.
The filter accepts the following options:
@table @option
@item chl_out
Set output channel layout. By default, this is @var{5.1}.
See @ref{channel layout syntax,,the Channel Layout section in the ffmpeg-utils(1) manual,ffmpeg-utils}
for the required syntax.
@item level_in
Set input volume level. By default, this is @var{1}.
@item level_out
Set output volume level. By default, this is @var{1}.
@item lfe
Enable LFE channel output if output channel layout has it. By default, this is enabled.
@item lfe_low
Set LFE low cut off frequency. By default, this is @var{128} Hz.
@item lfe_high
Set LFE high cut off frequency. By default, this is @var{256} Hz.
@end table
@section treble
Boost or cut treble (upper) frequencies of the audio using a two-pole
...
...
libavfilter/Makefile
浏览文件 @
dc72d1dd
...
...
@@ -108,6 +108,7 @@ OBJS-$(CONFIG_SILENCEREMOVE_FILTER) += af_silenceremove.o
OBJS-$(CONFIG_SOFALIZER_FILTER)
+=
af_sofalizer.o
OBJS-$(CONFIG_STEREOTOOLS_FILTER)
+=
af_stereotools.o
OBJS-$(CONFIG_STEREOWIDEN_FILTER)
+=
af_stereowiden.o
OBJS-$(CONFIG_SURROUND_FILTER)
+=
af_surround.o
OBJS-$(CONFIG_TREBLE_FILTER)
+=
af_biquads.o
OBJS-$(CONFIG_TREMOLO_FILTER)
+=
af_tremolo.o
OBJS-$(CONFIG_VIBRATO_FILTER)
+=
af_vibrato.o generate_wave_table.o
...
...
libavfilter/af_surround.c
0 → 100644
浏览文件 @
dc72d1dd
此差异已折叠。
点击以展开。
libavfilter/allfilters.c
浏览文件 @
dc72d1dd
...
...
@@ -121,6 +121,7 @@ static void register_all(void)
REGISTER_FILTER
(
SOFALIZER
,
sofalizer
,
af
);
REGISTER_FILTER
(
STEREOTOOLS
,
stereotools
,
af
);
REGISTER_FILTER
(
STEREOWIDEN
,
stereowiden
,
af
);
REGISTER_FILTER
(
SURROUND
,
surround
,
af
);
REGISTER_FILTER
(
TREBLE
,
treble
,
af
);
REGISTER_FILTER
(
TREMOLO
,
tremolo
,
af
);
REGISTER_FILTER
(
VIBRATO
,
vibrato
,
af
);
...
...
libavfilter/version.h
浏览文件 @
dc72d1dd
...
...
@@ -30,7 +30,7 @@
#include "libavutil/version.h"
#define LIBAVFILTER_VERSION_MAJOR 6
#define LIBAVFILTER_VERSION_MINOR 9
0
#define LIBAVFILTER_VERSION_MINOR 9
1
#define LIBAVFILTER_VERSION_MICRO 100
#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
...
...
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