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Linshizhi
ffmpeg.wasm-core
Commits
9244370a
Commit
9244370a
authored
Sep 05, 2009
by
Sascha Sommer
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reindent
Originally committed as revision 19765 to
svn://svn.ffmpeg.org/ffmpeg/trunk
parent
42ea9681
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1 changed file
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43 additions
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43 deletions
+43
-43
wmaprodec.c
libavcodec/wmaprodec.c
+43
-43
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libavcodec/wmaprodec.c
View file @
9244370a
...
...
@@ -1449,62 +1449,62 @@ static int decode_packet(AVCodecContext *avctx,
void
*
data
,
int
*
data_size
,
AVPacket
*
avpkt
)
{
WMAProDecodeCtx
*
s
=
avctx
->
priv_data
;
GetBitContext
*
gb
=
&
s
->
pgb
;
const
uint8_t
*
buf
=
avpkt
->
data
;
int
buf_size
=
avpkt
->
size
;
int
more_frames
=
1
;
GetBitContext
*
gb
=
&
s
->
pgb
;
const
uint8_t
*
buf
=
avpkt
->
data
;
int
buf_size
=
avpkt
->
size
;
int
more_frames
=
1
;
int
num_bits_prev_frame
;
int
packet_sequence_number
;
s
->
samples
=
data
;
s
->
samples
=
data
;
s
->
samples_start
=
data
;
s
->
samples_end
=
(
float
*
)((
int8_t
*
)
data
+
*
data_size
);
s
->
samples_end
=
(
float
*
)((
int8_t
*
)
data
+
*
data_size
);
*
data_size
=
0
;
if
(
!
s
->
output_buffer_full
)
{
s
->
buf_bit_size
=
buf_size
<<
3
;
s
->
buf_bit_size
=
buf_size
<<
3
;
/** sanity check for the buffer length */
if
(
buf_size
<
avctx
->
block_align
)
return
0
;
/** sanity check for the buffer length */
if
(
buf_size
<
avctx
->
block_align
)
return
0
;
buf_size
=
avctx
->
block_align
;
buf_size
=
avctx
->
block_align
;
/** parse packet header */
init_get_bits
(
gb
,
buf
,
s
->
buf_bit_size
);
packet_sequence_number
=
get_bits
(
gb
,
4
);
skip_bits
(
gb
,
2
);
/** parse packet header */
init_get_bits
(
gb
,
buf
,
s
->
buf_bit_size
);
packet_sequence_number
=
get_bits
(
gb
,
4
);
skip_bits
(
gb
,
2
);
/** get number of bits that need to be added to the previous frame */
num_bits_prev_frame
=
get_bits
(
gb
,
s
->
log2_frame_size
);
dprintf
(
avctx
,
"packet[%d]: nbpf %x
\n
"
,
avctx
->
frame_number
,
num_bits_prev_frame
);
/** get number of bits that need to be added to the previous frame */
num_bits_prev_frame
=
get_bits
(
gb
,
s
->
log2_frame_size
);
dprintf
(
avctx
,
"packet[%d]: nbpf %x
\n
"
,
avctx
->
frame_number
,
num_bits_prev_frame
);
/** check for packet loss */
if
(
!
s
->
packet_loss
&&
((
s
->
packet_sequence_number
+
1
)
&
0xF
)
!=
packet_sequence_number
)
{
s
->
packet_loss
=
1
;
av_log
(
avctx
,
AV_LOG_ERROR
,
"Packet loss detected! seq %x vs %x
\n
"
,
s
->
packet_sequence_number
,
packet_sequence_number
);
}
s
->
packet_sequence_number
=
packet_sequence_number
;
if
(
num_bits_prev_frame
>
0
)
{
/** append the previous frame data to the remaining data from the
previous packet to create a full frame */
save_bits
(
s
,
gb
,
num_bits_prev_frame
,
1
);
dprintf
(
avctx
,
"accumulated %x bits of frame data
\n
"
,
s
->
num_saved_bits
-
s
->
frame_offset
);
/** decode the cross packet frame if it is valid */
if
(
!
s
->
packet_loss
)
decode_frame
(
s
);
}
else
if
(
s
->
num_saved_bits
-
s
->
frame_offset
)
{
dprintf
(
avctx
,
"ignoring %x previously saved bits
\n
"
,
s
->
num_saved_bits
-
s
->
frame_offset
);
}
/** check for packet loss */
if
(
!
s
->
packet_loss
&&
((
s
->
packet_sequence_number
+
1
)
&
0xF
)
!=
packet_sequence_number
)
{
s
->
packet_loss
=
1
;
av_log
(
avctx
,
AV_LOG_ERROR
,
"Packet loss detected! seq %x vs %x
\n
"
,
s
->
packet_sequence_number
,
packet_sequence_number
);
}
s
->
packet_sequence_number
=
packet_sequence_number
;
if
(
num_bits_prev_frame
>
0
)
{
/** append the previous frame data to the remaining data from the
previous packet to create a full frame */
save_bits
(
s
,
gb
,
num_bits_prev_frame
,
1
);
dprintf
(
avctx
,
"accumulated %x bits of frame data
\n
"
,
s
->
num_saved_bits
-
s
->
frame_offset
);
/** decode the cross packet frame if it is valid */
if
(
!
s
->
packet_loss
)
decode_frame
(
s
);
}
else
if
(
s
->
num_saved_bits
-
s
->
frame_offset
)
{
dprintf
(
avctx
,
"ignoring %x previously saved bits
\n
"
,
s
->
num_saved_bits
-
s
->
frame_offset
);
}
s
->
packet_loss
=
0
;
s
->
packet_loss
=
0
;
}
else
{
/** continue decoding */
...
...
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