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Stefan Westerfeld
ffmpeg
Commits
1c8bf697
Commit
1c8bf697
authored
May 06, 2023
by
Paul B Mahol
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avfilter/f_ebur128: export results into read-only options
parent
71536429
Changes
3
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3 changed files
with
49 additions
and
13 deletions
+49
-13
filters.texi
doc/filters.texi
+18
-0
f_ebur128.c
libavfilter/f_ebur128.c
+30
-12
version.h
libavfilter/version.h
+1
-1
No files found.
doc/filters.texi
View file @
1c8bf697
...
...
@@ -28726,6 +28726,24 @@ live mixing).
Sets the display scale for the loudness. Valid parameters are @code{absolute}
(in LUFS) or @code{relative} (LU) relative to the target. This only affects the
video output, not the summary or continuous log output.
@item integrated
Read-only exported value for measured integrated loudness, in LUFS.
@item range
Read-only exported value for measured loudness range, in LU.
@item lra_low
Read-only exported value for measured LRA low, in LUFS.
@item lra_high
Read-only exported value for measured LRA high, in LUFS.
@item sample_peak
Read-only exported value for measured sample peak, in dBFS.
@item true_peak
Read-only exported value for measured true peak, in dBFS.
@end table
@subsection Examples
...
...
libavfilter/f_ebur128.c
View file @
1c8bf697
...
...
@@ -26,6 +26,7 @@
* @todo implement start/stop/reset through filter command injection
*/
#include <float.h>
#include <math.h>
#include "libavutil/avassert.h"
...
...
@@ -80,7 +81,9 @@ typedef struct EBUR128Context {
/* peak metering */
int
peak_mode
;
///< enabled peak modes
double
true_peak
;
///< global true peak
double
*
true_peaks
;
///< true peaks per channel
double
sample_peak
;
///< global sample peak
double
*
sample_peaks
;
///< sample peaks per channel
double
*
true_peaks_per_frame
;
///< true peaks in a frame per channel
#if CONFIG_SWRESAMPLE
...
...
@@ -159,6 +162,8 @@ enum {
#define A AV_OPT_FLAG_AUDIO_PARAM
#define V AV_OPT_FLAG_VIDEO_PARAM
#define F AV_OPT_FLAG_FILTERING_PARAM
#define X AV_OPT_FLAG_EXPORT
#define R AV_OPT_FLAG_READONLY
static
const
AVOption
ebur128_options
[]
=
{
{
"video"
,
"set video output"
,
OFFSET
(
do_video
),
AV_OPT_TYPE_BOOL
,
{.
i64
=
0
},
0
,
1
,
V
|
F
},
{
"size"
,
"set video size"
,
OFFSET
(
w
),
AV_OPT_TYPE_IMAGE_SIZE
,
{.
str
=
"640x480"
},
0
,
0
,
V
|
F
},
...
...
@@ -185,6 +190,12 @@ static const AVOption ebur128_options[] = {
{
"LUFS"
,
"display absolute values (LUFS)"
,
0
,
AV_OPT_TYPE_CONST
,
{.
i64
=
SCALE_TYPE_ABSOLUTE
},
INT_MIN
,
INT_MAX
,
V
|
F
,
"scaletype"
},
{
"relative"
,
"display values relative to target (LU)"
,
0
,
AV_OPT_TYPE_CONST
,
{.
i64
=
SCALE_TYPE_RELATIVE
},
INT_MIN
,
INT_MAX
,
V
|
F
,
"scaletype"
},
{
"LU"
,
"display values relative to target (LU)"
,
0
,
AV_OPT_TYPE_CONST
,
{.
i64
=
SCALE_TYPE_RELATIVE
},
INT_MIN
,
INT_MAX
,
V
|
F
,
"scaletype"
},
{
"integrated"
,
"integrated loudness (LUFS)"
,
OFFSET
(
integrated_loudness
),
AV_OPT_TYPE_DOUBLE
,
{.
dbl
=
0
},
-
DBL_MAX
,
DBL_MAX
,
A
|
F
|
X
|
R
},
{
"range"
,
"loudness range (LU)"
,
OFFSET
(
loudness_range
),
AV_OPT_TYPE_DOUBLE
,
{.
dbl
=
0
},
-
DBL_MAX
,
DBL_MAX
,
A
|
F
|
X
|
R
},
{
"lra_low"
,
"LRA low (LUFS)"
,
OFFSET
(
lra_low
),
AV_OPT_TYPE_DOUBLE
,
{.
dbl
=
0
},
-
DBL_MAX
,
DBL_MAX
,
A
|
F
|
X
|
R
},
{
"lra_high"
,
"LRA high (LUFS)"
,
OFFSET
(
lra_high
),
AV_OPT_TYPE_DOUBLE
,
{.
dbl
=
0
},
-
DBL_MAX
,
DBL_MAX
,
A
|
F
|
X
|
R
},
{
"sample_peak"
,
"sample peak (dBFS)"
,
OFFSET
(
sample_peak
),
AV_OPT_TYPE_DOUBLE
,
{.
dbl
=
0
},
-
DBL_MAX
,
DBL_MAX
,
A
|
F
|
X
|
R
},
{
"true_peak"
,
"true peak (dBFS)"
,
OFFSET
(
true_peak
),
AV_OPT_TYPE_DOUBLE
,
{.
dbl
=
0
},
-
DBL_MAX
,
DBL_MAX
,
A
|
F
|
X
|
R
},
{
NULL
},
};
...
...
@@ -701,6 +712,20 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *insamples)
ebur128
->
i3000
.
cache
[
ch
][
bin_id_3000
]
=
bin
;
}
#define FIND_PEAK(global, sp, ptype) do { \
int ch; \
double maxpeak; \
maxpeak = 0.0; \
if (ebur128->peak_mode & PEAK_MODE_ ## ptype ## _PEAKS) { \
for (ch = 0; ch < ebur128->nb_channels; ch++) \
maxpeak = FFMAX(maxpeak, sp[ch]); \
global = DBFS(maxpeak); \
} \
} while (0)
FIND_PEAK
(
ebur128
->
sample_peak
,
ebur128
->
sample_peaks
,
SAMPLES
);
FIND_PEAK
(
ebur128
->
true_peak
,
ebur128
->
true_peaks
,
TRUE
);
/* For integrated loudness, gating blocks are 400ms long with 75%
* overlap (see BS.1770-2 p5), so a re-computation is needed each 100ms
* (4800 samples at 48kHz). */
...
...
@@ -1023,7 +1048,6 @@ static int query_formats(AVFilterContext *ctx)
static
av_cold
void
uninit
(
AVFilterContext
*
ctx
)
{
int
i
;
EBUR128Context
*
ebur128
=
ctx
->
priv
;
/* dual-mono correction */
...
...
@@ -1047,21 +1071,15 @@ static av_cold void uninit(AVFilterContext *ctx)
ebur128
->
loudness_range
,
ebur128
->
i3000
.
rel_threshold
,
ebur128
->
lra_low
,
ebur128
->
lra_high
);
#define PRINT_PEAK_SUMMARY(str, sp, ptype) do { \
int ch; \
double maxpeak; \
maxpeak = 0.0; \
#define PRINT_PEAK_SUMMARY(str, value, ptype) do { \
if (ebur128->peak_mode & PEAK_MODE_ ## ptype ## _PEAKS) { \
for (ch = 0; ch < ebur128->nb_channels; ch++) \
maxpeak = FFMAX(maxpeak, sp[ch]); \
av_log(ctx, AV_LOG_INFO, "\n\n " str " peak:\n" \
" Peak: %5.1f dBFS", \
DBFS(maxpeak)); \
" Peak: %5.1f dBFS", value); \
} \
} while (0)
PRINT_PEAK_SUMMARY
(
"Sample"
,
ebur128
->
sample_peak
s
,
SAMPLES
);
PRINT_PEAK_SUMMARY
(
"True"
,
ebur128
->
true_peak
s
,
TRUE
);
PRINT_PEAK_SUMMARY
(
"Sample"
,
ebur128
->
sample_peak
,
SAMPLES
);
PRINT_PEAK_SUMMARY
(
"True"
,
ebur128
->
true_peak
,
TRUE
);
av_log
(
ctx
,
AV_LOG_INFO
,
"
\n
"
);
av_freep
(
&
ebur128
->
y_line_ref
);
...
...
@@ -1076,7 +1094,7 @@ static av_cold void uninit(AVFilterContext *ctx)
av_freep
(
&
ebur128
->
i3000
.
sum
);
av_freep
(
&
ebur128
->
i400
.
histogram
);
av_freep
(
&
ebur128
->
i3000
.
histogram
);
for
(
i
=
0
;
i
<
ebur128
->
nb_channels
;
i
++
)
{
for
(
i
nt
i
=
0
;
i
<
ebur128
->
nb_channels
;
i
++
)
{
if
(
ebur128
->
i400
.
cache
)
av_freep
(
&
ebur128
->
i400
.
cache
[
i
]);
if
(
ebur128
->
i3000
.
cache
)
...
...
libavfilter/version.h
View file @
1c8bf697
...
...
@@ -32,7 +32,7 @@
#include "version_major.h"
#define LIBAVFILTER_VERSION_MINOR 7
#define LIBAVFILTER_VERSION_MICRO 10
0
#define LIBAVFILTER_VERSION_MICRO 10
1
#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
...
...
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