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Linshizhi
ffmpeg.wasm-core
Commits
eac5987c
Commit
eac5987c
authored
Dec 03, 2011
by
Michael Niedermayer
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g723_1dec: update to new API
Signed-off-by:
Michael Niedermayer
<
michaelni@gmx.at
>
parent
7db5ff79
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1 changed file
with
21 additions
and
7 deletions
+21
-7
g723_1.c
libavcodec/g723_1.c
+21
-7
No files found.
libavcodec/g723_1.c
View file @
eac5987c
...
...
@@ -36,6 +36,7 @@
#include "g723_1_data.h"
typedef
struct
g723_1_context
{
AVFrame
frame
;
G723_1_Subframe
subframe
[
4
];
FrameType
cur_frame_type
;
FrameType
past_frame_type
;
...
...
@@ -80,6 +81,9 @@ static av_cold int g723_1_decode_init(AVCodecContext *avctx)
p
->
pf_gain
=
1
<<
12
;
memcpy
(
p
->
prev_lsp
,
dc_lsp
,
LPC_ORDER
*
sizeof
(
int16_t
));
avcodec_get_frame_defaults
(
&
p
->
frame
);
avctx
->
coded_frame
=
&
p
->
frame
;
return
0
;
}
...
...
@@ -950,12 +954,12 @@ static void formant_postfilter(G723_1_Context *p, int16_t *lpc, int16_t *buf)
}
static
int
g723_1_decode_frame
(
AVCodecContext
*
avctx
,
void
*
data
,
int
*
data_size
,
AVPacket
*
avpkt
)
int
*
got_frame_ptr
,
AVPacket
*
avpkt
)
{
G723_1_Context
*
p
=
avctx
->
priv_data
;
const
uint8_t
*
buf
=
avpkt
->
data
;
int
buf_size
=
avpkt
->
size
;
int16_t
*
out
=
data
;
int16_t
*
out
;
int
dec_mode
=
buf
[
0
]
&
3
;
PPFParam
ppf
[
SUBFRAMES
];
...
...
@@ -963,10 +967,10 @@ static int g723_1_decode_frame(AVCodecContext *avctx, void *data,
int16_t
lpc
[
SUBFRAMES
*
LPC_ORDER
];
int16_t
acb_vector
[
SUBFRAME_LEN
];
int16_t
*
vector_ptr
;
int
bad_frame
=
0
,
i
,
j
;
int
bad_frame
=
0
,
i
,
j
,
ret
;
if
(
!
buf_size
||
buf_size
<
frame_size
[
dec_mode
])
{
*
data_size
=
0
;
*
got_frame_ptr
=
0
;
return
buf_size
;
}
...
...
@@ -976,7 +980,14 @@ static int g723_1_decode_frame(AVCodecContext *avctx, void *data,
ActiveFrame
:
UntransmittedFrame
;
}
*
data_size
=
FRAME_LEN
*
sizeof
(
int16_t
);
p
->
frame
.
nb_samples
=
FRAME_LEN
+
LPC_ORDER
;
if
((
ret
=
avctx
->
get_buffer
(
avctx
,
&
p
->
frame
))
<
0
)
{
av_log
(
avctx
,
AV_LOG_ERROR
,
"get_buffer() failed
\n
"
);
return
ret
;
}
out
=
p
->
frame
.
data
[
0
];
if
(
p
->
cur_frame_type
==
ActiveFrame
)
{
if
(
!
bad_frame
)
{
p
->
erased_frames
=
0
;
...
...
@@ -1051,7 +1062,7 @@ static int g723_1_decode_frame(AVCodecContext *avctx, void *data,
memcpy
(
p
->
prev_excitation
,
p
->
excitation
+
FRAME_LEN
,
PITCH_MAX
*
sizeof
(
int16_t
));
}
else
{
memset
(
out
,
0
,
*
data_size
);
memset
(
out
,
0
,
sizeof
(
int16_t
)
*
FRAME_LEN
);
av_log
(
avctx
,
AV_LOG_WARNING
,
"G.723.1: Comfort noise generation not supported yet
\n
"
);
return
frame_size
[
dec_mode
];
...
...
@@ -1068,7 +1079,10 @@ static int g723_1_decode_frame(AVCodecContext *avctx, void *data,
formant_postfilter
(
p
,
lpc
,
out
);
memmove
(
out
,
out
+
LPC_ORDER
,
*
data_size
);
memmove
(
out
,
out
+
LPC_ORDER
,
sizeof
(
int16_t
)
*
FRAME_LEN
);
p
->
frame
.
nb_samples
=
FRAME_LEN
;
*
(
AVFrame
*
)
data
=
p
->
frame
;
*
got_frame_ptr
=
1
;
return
frame_size
[
dec_mode
];
}
...
...
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