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Linshizhi
ffmpeg.wasm-core
Commits
97c7bdc6
Commit
97c7bdc6
authored
Dec 23, 2012
by
Justin Ruggles
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cinaudio: decode directly to the user-provided AVFrame
parent
182821cf
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1 changed file
with
5 additions
and
9 deletions
+5
-9
dsicinav.c
libavcodec/dsicinav.c
+5
-9
No files found.
libavcodec/dsicinav.c
View file @
97c7bdc6
...
@@ -46,7 +46,6 @@ typedef struct CinVideoContext {
...
@@ -46,7 +46,6 @@ typedef struct CinVideoContext {
}
CinVideoContext
;
}
CinVideoContext
;
typedef
struct
CinAudioContext
{
typedef
struct
CinAudioContext
{
AVFrame
frame
;
int
initial_decode_frame
;
int
initial_decode_frame
;
int
delta
;
int
delta
;
}
CinAudioContext
;
}
CinAudioContext
;
...
@@ -327,15 +326,13 @@ static av_cold int cinaudio_decode_init(AVCodecContext *avctx)
...
@@ -327,15 +326,13 @@ static av_cold int cinaudio_decode_init(AVCodecContext *avctx)
avctx
->
channels
=
1
;
avctx
->
channels
=
1
;
avctx
->
channel_layout
=
AV_CH_LAYOUT_MONO
;
avctx
->
channel_layout
=
AV_CH_LAYOUT_MONO
;
avcodec_get_frame_defaults
(
&
cin
->
frame
);
avctx
->
coded_frame
=
&
cin
->
frame
;
return
0
;
return
0
;
}
}
static
int
cinaudio_decode_frame
(
AVCodecContext
*
avctx
,
void
*
data
,
static
int
cinaudio_decode_frame
(
AVCodecContext
*
avctx
,
void
*
data
,
int
*
got_frame_ptr
,
AVPacket
*
avpkt
)
int
*
got_frame_ptr
,
AVPacket
*
avpkt
)
{
{
AVFrame
*
frame
=
data
;
const
uint8_t
*
buf
=
avpkt
->
data
;
const
uint8_t
*
buf
=
avpkt
->
data
;
CinAudioContext
*
cin
=
avctx
->
priv_data
;
CinAudioContext
*
cin
=
avctx
->
priv_data
;
const
uint8_t
*
buf_end
=
buf
+
avpkt
->
size
;
const
uint8_t
*
buf_end
=
buf
+
avpkt
->
size
;
...
@@ -343,12 +340,12 @@ static int cinaudio_decode_frame(AVCodecContext *avctx, void *data,
...
@@ -343,12 +340,12 @@ static int cinaudio_decode_frame(AVCodecContext *avctx, void *data,
int
delta
,
ret
;
int
delta
,
ret
;
/* get output buffer */
/* get output buffer */
cin
->
frame
.
nb_samples
=
avpkt
->
size
-
cin
->
initial_decode_frame
;
frame
->
nb_samples
=
avpkt
->
size
-
cin
->
initial_decode_frame
;
if
((
ret
=
ff_get_buffer
(
avctx
,
&
cin
->
frame
))
<
0
)
{
if
((
ret
=
ff_get_buffer
(
avctx
,
frame
))
<
0
)
{
av_log
(
avctx
,
AV_LOG_ERROR
,
"get_buffer() failed
\n
"
);
av_log
(
avctx
,
AV_LOG_ERROR
,
"get_buffer() failed
\n
"
);
return
ret
;
return
ret
;
}
}
samples
=
(
int16_t
*
)
cin
->
frame
.
data
[
0
];
samples
=
(
int16_t
*
)
frame
->
data
[
0
];
delta
=
cin
->
delta
;
delta
=
cin
->
delta
;
if
(
cin
->
initial_decode_frame
)
{
if
(
cin
->
initial_decode_frame
)
{
...
@@ -364,8 +361,7 @@ static int cinaudio_decode_frame(AVCodecContext *avctx, void *data,
...
@@ -364,8 +361,7 @@ static int cinaudio_decode_frame(AVCodecContext *avctx, void *data,
}
}
cin
->
delta
=
delta
;
cin
->
delta
=
delta
;
*
got_frame_ptr
=
1
;
*
got_frame_ptr
=
1
;
*
(
AVFrame
*
)
data
=
cin
->
frame
;
return
avpkt
->
size
;
return
avpkt
->
size
;
}
}
...
...
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