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videolan
vlc
Commits
38feb73c
Commit
38feb73c
authored
May 31, 2011
by
Rémi Denis-Courmont
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Ugly resampler: implement all linear formats
parent
095526d1
Changes
1
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1 changed file
with
14 additions
and
17 deletions
+14
-17
modules/audio_filter/resampler/ugly.c
modules/audio_filter/resampler/ugly.c
+14
-17
No files found.
modules/audio_filter/resampler/ugly.c
View file @
38feb73c
...
...
@@ -59,17 +59,14 @@ static int Create( vlc_object_t *p_this )
{
filter_t
*
p_filter
=
(
filter_t
*
)
p_this
;
if
(
p_filter
->
fmt_in
.
audio
.
i_rate
==
p_filter
->
fmt_out
.
audio
.
i_rate
if
(
p_filter
->
fmt_in
.
audio
.
i_rate
==
p_filter
->
fmt_out
.
audio
.
i_rate
||
p_filter
->
fmt_in
.
audio
.
i_format
!=
p_filter
->
fmt_out
.
audio
.
i_format
||
p_filter
->
fmt_in
.
audio
.
i_physical_channels
!=
p_filter
->
fmt_out
.
audio
.
i_physical_channels
||
p_filter
->
fmt_in
.
audio
.
i_original_channels
!=
p_filter
->
fmt_out
.
audio
.
i_original_channels
||
(
p_filter
->
fmt_in
.
audio
.
i_format
!=
VLC_CODEC_FL32
&&
p_filter
->
fmt_in
.
audio
.
i_format
!=
VLC_CODEC_FI32
)
)
{
||
AOUT_FMT_NON_LINEAR
(
&
p_filter
->
fmt_in
.
audio
)
)
return
VLC_EGENERIC
;
}
p_filter
->
pf_audio_filter
=
DoWork
;
return
VLC_SUCCESS
;
...
...
@@ -87,12 +84,12 @@ static block_t *DoWork( filter_t * p_filter, block_t * p_in_buf )
block_t
*
p_out_buf
=
p_in_buf
;
unsigned
int
i_out_nb
=
p_in_buf
->
i_nb_samples
*
p_filter
->
fmt_out
.
audio
.
i_rate
/
p_filter
->
fmt_in
.
audio
.
i_rate
;
const
unsigned
int
i_sample_bytes
=
aout_FormatNbChannels
(
&
p_filter
->
fmt_in
.
audio
)
*
sizeof
(
int32_t
);
const
unsigned
framesize
=
(
p_filter
->
fmt_in
.
audio
.
i_bitspersample
/
8
)
*
aout_FormatNbChannels
(
&
p_filter
->
fmt_in
.
audio
);
if
(
p_filter
->
fmt_out
.
audio
.
i_rate
>
p_filter
->
fmt_in
.
audio
.
i_rate
)
{
p_out_buf
=
block_Alloc
(
i_out_nb
*
i_sample_bytes
);
p_out_buf
=
block_Alloc
(
i_out_nb
*
framesize
);
if
(
!
p_out_buf
)
goto
out
;
}
...
...
@@ -102,7 +99,7 @@ static block_t *DoWork( filter_t * p_filter, block_t * p_in_buf )
unsigned
int
i_remainder
=
0
;
p_out_buf
->
i_nb_samples
=
i_out_nb
;
p_out_buf
->
i_buffer
=
i_out_nb
*
i_sample_bytes
;
p_out_buf
->
i_buffer
=
i_out_nb
*
framesize
;
p_out_buf
->
i_pts
=
p_in_buf
->
i_pts
;
p_out_buf
->
i_length
=
p_out_buf
->
i_nb_samples
*
1000000
/
p_filter
->
fmt_out
.
audio
.
i_rate
;
...
...
@@ -110,14 +107,14 @@ static block_t *DoWork( filter_t * p_filter, block_t * p_in_buf )
while
(
i_out_nb
)
{
if
(
p_out
!=
p_in
)
memcpy
(
p_out
,
p_in
,
i_sample_bytes
);
p_out
+=
i_sample_bytes
;
memcpy
(
p_out
,
p_in
,
framesize
);
p_out
+=
framesize
;
i_out_nb
--
;
i_remainder
+=
p_filter
->
fmt_in
.
audio
.
i_rate
;
while
(
i_remainder
>=
p_filter
->
fmt_out
.
audio
.
i_rate
)
{
p_in
+=
i_sample_bytes
;
p_in
+=
framesize
;
i_remainder
-=
p_filter
->
fmt_out
.
audio
.
i_rate
;
}
}
...
...
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