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Stefan Westerfeld
audiowmark
Commits
f7a21add
Commit
f7a21add
authored
Nov 23, 2020
by
Stefan Westerfeld
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Force constant second input data length in slow speed detection.
Signed-off-by:
Stefan Westerfeld
<
stefan@space.twc.de
>
parent
d5936d8b
Changes
1
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wmget.cc
src/wmget.cc
+4
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src/wmget.cc
View file @
f7a21add
...
...
@@ -98,7 +98,7 @@ resample (const WavData& wav_data, int rate)
}
static
WavData
resample_ratio
(
const
WavData
&
wav_data
,
double
ratio
)
resample_ratio
(
const
WavData
&
wav_data
,
double
ratio
,
int
new_rate
)
{
const
int
hlen
=
16
;
const
vector
<
float
>&
in
=
wav_data
.
samples
();
...
...
@@ -112,7 +112,7 @@ resample_ratio (const WavData& wav_data, double ratio)
}
process_resampler
(
vresampler
,
in
,
out
);
return
WavData
(
out
,
wav_data
.
n_channels
(),
wav_data
.
sample_rate
()
*
ratio
,
wav_data
.
bit_depth
());
return
WavData
(
out
,
wav_data
.
n_channels
(),
new_rate
,
wav_data
.
bit_depth
());
}
static
int
...
...
@@ -1096,7 +1096,7 @@ detect_speed (const WavData& wav_data, double center, double step, int n_steps,
double
speed
=
center
*
pow
(
step
,
p
);
WavData
wd_resampled
=
resample_ratio
(
wd_truncated
,
speed
);
WavData
wd_resampled
=
resample_ratio
(
wd_truncated
,
speed
,
Params
::
mark_sample_rate
);
wd_resampled
=
truncate
(
wd_resampled
,
seconds
);
ResultSet
result_set
;
...
...
@@ -1306,7 +1306,7 @@ SpeedSync::prepare_mags (const WavData& in_data, double center, double seconds)
WavData
in_data_trc
(
truncate
(
in_data
,
seconds
/
center
));
// we downsample the audio by factor 2 to improve performance
WavData
in_data_sub
(
resample_ratio
(
in_data_trc
,
center
/
2
));
WavData
in_data_sub
(
resample_ratio
(
in_data_trc
,
center
/
2
,
Params
::
mark_sample_rate
/
2
));
const
int
sub_frame_size
=
Params
::
frame_size
/
2
;
const
int
sub_sync_search_step
=
Params
::
sync_search_step
/
2
;
...
...
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