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videolan
vlc-2-2
Commits
d069d152
Commit
d069d152
authored
May 02, 2014
by
Rafaël Carré
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Plain Diff
fdkaac: reduce context size
parent
e2263e68
Changes
1
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Showing
1 changed file
with
23 additions
and
28 deletions
+23
-28
modules/codec/fdkaac.c
modules/codec/fdkaac.c
+23
-28
No files found.
modules/codec/fdkaac.c
View file @
d069d152
...
...
@@ -135,15 +135,10 @@ struct encoder_sys_t
{
double
d_compression_ratio
;
mtime_t
i_pts_last
;
int
i_aot
;
/* This stores the aac profile chosen */
int
i_vbr
;
/* cbr or vbr-quality value chosen */
int
i_signaling
;
/* Library feature for backwards compatibility */
int
i_encoderdelay
;
/* Samples delay introduced by the profile */
int
i_frame_size
;
int
i_maxoutputsize
;
/* Maximum buffer size for encoded output */
HANDLE_AACENCODER
handle
;
bool
b_afterburner
;
/* Library feature for additional quality */
bool
b_eld_sbr
;
/* Spectral band replication option for ELD profile */
};
static
const
char
*
aac_get_errorstring
(
AACENC_ERROR
erraac
)
...
...
@@ -232,25 +227,24 @@ static int OpenEncoder( vlc_object_t *p_this )
config_ChainParse
(
p_enc
,
ENC_CFG_PREFIX
,
ppsz_enc_options
,
p_enc
->
p_cfg
);
int
i_aot
;
/* This stores the aac profile chosen */
if
(
p_enc
->
fmt_out
.
i_codec
==
VLC_FOURCC
(
'l'
,
'a'
,
'a'
,
'c'
)
)
p_sys
->
i_aot
=
PROFILE_AAC_LC
;
i_aot
=
PROFILE_AAC_LC
;
else
if
(
p_enc
->
fmt_out
.
i_codec
==
VLC_FOURCC
(
'h'
,
'a'
,
'a'
,
'c'
)
)
p_sys
->
i_aot
=
PROFILE_AAC_HE
;
i_aot
=
PROFILE_AAC_HE
;
else
if
(
p_enc
->
fmt_out
.
i_codec
==
VLC_FOURCC
(
's'
,
'a'
,
'a'
,
'c'
)
)
p_sys
->
i_aot
=
PROFILE_AAC_HE_v2
;
i_aot
=
PROFILE_AAC_HE_v2
;
else
p_sys
->
i_aot
=
var_InheritInteger
(
p_enc
,
ENC_CFG_PREFIX
"profile"
);
i_aot
=
var_InheritInteger
(
p_enc
,
ENC_CFG_PREFIX
"profile"
);
p_sys
->
b_eld_sbr
=
var_InheritBool
(
p_enc
,
ENC_CFG_PREFIX
"sbr"
);
p_sys
->
i_vbr
=
var_InheritInteger
(
p_enc
,
ENC_CFG_PREFIX
"vbr"
);
p_sys
->
b_afterburner
=
var_InheritBool
(
p_enc
,
ENC_CFG_PREFIX
"afterburner"
);
p_sys
->
i_signaling
=
var_InheritInteger
(
p_enc
,
ENC_CFG_PREFIX
"signaling"
);
bool
b_eld_sbr
=
var_InheritBool
(
p_enc
,
ENC_CFG_PREFIX
"sbr"
);
int
i_vbr
=
var_InheritInteger
(
p_enc
,
ENC_CFG_PREFIX
"vbr"
);
p_sys
->
i_pts_last
=
0
;
if
((
p_sys
->
i_aot
==
PROFILE_AAC_HE
||
p_sys
->
i_aot
==
PROFILE_AAC_HE_v2
)
&&
p_sys
->
i_vbr
>
3
)
if
((
i_aot
==
PROFILE_AAC_HE
||
i_aot
==
PROFILE_AAC_HE_v2
)
&&
i_vbr
>
3
)
{
msg_Warn
(
p_enc
,
"Maximum VBR quality for this profile is 3, setting vbr=3"
);
p_sys
->
i_vbr
=
3
;
i_vbr
=
3
;
}
AACENC_ERROR
erraac
;
if
((
erraac
=
aacEncOpen
(
&
p_sys
->
handle
,
0
,
p_enc
->
fmt_in
.
audio
.
i_channels
))
!=
AACENC_OK
)
{
...
...
@@ -258,21 +252,21 @@ static int OpenEncoder( vlc_object_t *p_this )
free
(
p_sys
);
return
VLC_EGENERIC
;
}
if
(
p_sys
->
i_aot
==
PROFILE_AAC_HE_v2
&&
p_enc
->
fmt_in
.
audio
.
i_channels
!=
2
)
if
(
i_aot
==
PROFILE_AAC_HE_v2
&&
p_enc
->
fmt_in
.
audio
.
i_channels
!=
2
)
{
msg_Err
(
p_enc
,
"The HE-AAC-v2 profile can only be used with stereo sources"
);
goto
error
;
}
if
(
p_sys
->
i_aot
==
PROFILE_AAC_ELD
&&
p_enc
->
fmt_in
.
audio
.
i_channels
!=
2
)
if
(
i_aot
==
PROFILE_AAC_ELD
&&
p_enc
->
fmt_in
.
audio
.
i_channels
!=
2
)
{
msg_Err
(
p_enc
,
"The ELD-AAC profile can only be used with stereo sources"
);
goto
error
;
}
if
((
erraac
=
aacEncoder_SetParam
(
p_sys
->
handle
,
AACENC_AOT
,
p_sys
->
i_aot
))
!=
AACENC_OK
)
{
msg_Err
(
p_enc
,
"Unable to set the Profile %i: %s"
,
p_sys
->
i_aot
,
aac_get_errorstring
(
erraac
));
if
((
erraac
=
aacEncoder_SetParam
(
p_sys
->
handle
,
AACENC_AOT
,
i_aot
))
!=
AACENC_OK
)
{
msg_Err
(
p_enc
,
"Unable to set the Profile %i: %s"
,
i_aot
,
aac_get_errorstring
(
erraac
));
goto
error
;
}
if
(
p_sys
->
i_aot
==
PROFILE_AAC_ELD
&&
p_sys
->
b_eld_sbr
)
{
if
(
i_aot
==
PROFILE_AAC_ELD
&&
b_eld_sbr
)
{
if
((
erraac
=
aacEncoder_SetParam
(
p_sys
->
handle
,
AACENC_SBR_MODE
,
1
))
!=
AACENC_OK
)
{
msg_Err
(
p_enc
,
"Unable to set SBR mode for ELD: %s"
,
aac_get_errorstring
(
erraac
));
goto
error
;
...
...
@@ -292,23 +286,23 @@ static int OpenEncoder( vlc_object_t *p_this )
msg_Err
(
p_enc
,
"Unable to set the sound channel order: %s"
,
aac_get_errorstring
(
erraac
));
goto
error
;
}
if
(
p_sys
->
i_vbr
!=
0
)
{
if
(
i_vbr
!=
0
)
{
if
((
erraac
=
aacEncoder_SetParam
(
p_sys
->
handle
,
AACENC_BITRATEMODE
,
p_sys
->
i_vbr
))
!=
AACENC_OK
)
{
AACENC_BITRATEMODE
,
i_vbr
))
!=
AACENC_OK
)
{
msg_Err
(
p_enc
,
"Unable to set the VBR bitrate mode: %s"
,
aac_get_errorstring
(
erraac
));
goto
error
;
}
}
else
{
int
i_bitrate
;
if
(
p_enc
->
fmt_out
.
i_bitrate
==
0
)
{
if
(
p_sys
->
i_aot
==
PROFILE_AAC_HE_v2
)
{
if
(
i_aot
==
PROFILE_AAC_HE_v2
)
{
sce
=
1
;
cpe
=
0
;
}
i_bitrate
=
(
96
*
sce
+
128
*
cpe
)
*
p_enc
->
fmt_out
.
audio
.
i_rate
/
44
;
if
(
p_sys
->
i_aot
==
PROFILE_AAC_HE
||
p_sys
->
i_aot
==
PROFILE_AAC_HE_v2
||
p_sys
->
b_eld_sbr
)
if
(
i_aot
==
PROFILE_AAC_HE
||
i_aot
==
PROFILE_AAC_HE_v2
||
b_eld_sbr
)
i_bitrate
/=
2
;
p_enc
->
fmt_out
.
i_bitrate
=
i_bitrate
;
msg_Info
(
p_enc
,
"Setting optimal bitrate of %i"
,
i_bitrate
);
...
...
@@ -329,14 +323,15 @@ static int OpenEncoder( vlc_object_t *p_this )
goto
error
;
}
if
((
erraac
=
aacEncoder_SetParam
(
p_sys
->
handle
,
AACENC_SIGNALING_MODE
,
(
int
)
p_sys
->
i_signaling
))
!=
AACENC_OK
)
{
(
int
)
var_InheritInteger
(
p_enc
,
ENC_CFG_PREFIX
"signaling"
)
))
!=
AACENC_OK
)
{
/* use explicit backward compatible =1 */
/* use explicit hierarchical signaling =2 */
msg_Err
(
p_enc
,
"Unable to set signaling mode: %s"
,
aac_get_errorstring
(
erraac
));
goto
error
;
}
if
((
erraac
=
aacEncoder_SetParam
(
p_sys
->
handle
,
AACENC_AFTERBURNER
,
(
int
)
p_sys
->
b_afterburner
))
!=
AACENC_OK
)
{
!!
var_InheritBool
(
p_enc
,
ENC_CFG_PREFIX
"afterburner"
)))
!=
AACENC_OK
)
{
msg_Err
(
p_enc
,
"Unable to set the afterburner mode: %s"
,
aac_get_errorstring
(
erraac
));
goto
error
;
}
...
...
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