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Иван Мажукин
mpd
Commits
0979b0f7
Commit
0979b0f7
authored
Jul 25, 2006
by
J. Alexander Treuman
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Thanks for making my code totally unreadable indent!
git-svn-id:
https://svn.musicpd.org/mpd/trunk@4455
09075e82-0dd4-0310-85a5-a0d7c8717e4f
parent
e880a878
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1 changed file
with
54 additions
and
80 deletions
+54
-80
mp3_plugin.c
src/inputPlugins/mp3_plugin.c
+54
-80
No files found.
src/inputPlugins/mp3_plugin.c
View file @
0979b0f7
...
...
@@ -433,24 +433,24 @@ static int decodeNextFrame(mp3DecodeData * data)
#define FO_MAGIC (('f' << 8) | 'o')
enum
xing_magic
{
XING_MAGIC_XING
,
/* VBR */
XING_MAGIC_INFO
,
/* CBR */
XING_MAGIC_XING
,
/* VBR */
XING_MAGIC_INFO
,
/* CBR */
};
struct
xing
{
long
flags
;
/* valid fields (see below) */
unsigned
long
frames
;
/* total number of frames */
unsigned
long
bytes
;
/* total number of bytes */
unsigned
char
toc
[
100
];
/* 100-point seek table */
long
scale
;
/* VBR quality */
enum
xing_magic
magic
;
/* header magic */
long
flags
;
/* valid fields (see below) */
unsigned
long
frames
;
/* total number of frames */
unsigned
long
bytes
;
/* total number of bytes */
unsigned
char
toc
[
100
];
/* 100-point seek table */
long
scale
;
/* VBR quality */
enum
xing_magic
magic
;
/* header magic */
};
enum
{
XING_FRAMES
=
0x00000001L
,
XING_BYTES
=
0x00000002L
,
XING_TOC
=
0x00000004L
,
XING_SCALE
=
0x00000008L
XING_BYTES
=
0x00000002L
,
XING_TOC
=
0x00000004L
,
XING_SCALE
=
0x00000008L
,
};
static
int
parse_xing
(
struct
xing
*
xing
,
struct
mad_bitptr
*
ptr
,
int
bitlen
)
...
...
@@ -462,62 +462,49 @@ static int parse_xing(struct xing *xing, struct mad_bitptr *ptr, int bitlen)
oldbitlen
=
bitlen
;
if
(
bitlen
<
16
)
goto
fail
;
if
(
bitlen
<
16
)
goto
fail
;
bits
=
mad_bit_read
(
ptr
,
16
);
bitlen
-=
16
;
if
(
bits
==
XI_MAGIC
)
{
if
(
bitlen
<
16
)
goto
fail
;
if
(
mad_bit_read
(
ptr
,
16
)
!=
NG_MAGIC
)
goto
fail
;
if
(
bitlen
<
16
)
goto
fail
;
if
(
mad_bit_read
(
ptr
,
16
)
!=
NG_MAGIC
)
goto
fail
;
bitlen
-=
16
;
xing
->
magic
=
XING_MAGIC_XING
;
}
else
if
(
bits
==
IN_MAGIC
)
{
if
(
bitlen
<
16
)
goto
fail
;
if
(
mad_bit_read
(
ptr
,
16
)
!=
FO_MAGIC
)
goto
fail
;
if
(
bitlen
<
16
)
goto
fail
;
if
(
mad_bit_read
(
ptr
,
16
)
!=
FO_MAGIC
)
goto
fail
;
bitlen
-=
16
;
xing
->
magic
=
XING_MAGIC_INFO
;
}
else
if
(
bits
==
NG_MAGIC
)
xing
->
magic
=
XING_MAGIC_XING
;
else
if
(
bits
==
FO_MAGIC
)
xing
->
magic
=
XING_MAGIC_INFO
;
else
goto
fail
;
}
else
if
(
bits
==
NG_MAGIC
)
xing
->
magic
=
XING_MAGIC_XING
;
else
if
(
bits
==
FO_MAGIC
)
xing
->
magic
=
XING_MAGIC_INFO
;
else
goto
fail
;
if
(
bitlen
<
32
)
goto
fail
;
if
(
bitlen
<
32
)
goto
fail
;
xing
->
flags
=
mad_bit_read
(
ptr
,
32
);
bitlen
-=
32
;
if
(
xing
->
flags
&
XING_FRAMES
)
{
if
(
bitlen
<
32
)
goto
fail
;
if
(
bitlen
<
32
)
goto
fail
;
xing
->
frames
=
mad_bit_read
(
ptr
,
32
);
bitlen
-=
32
;
}
if
(
xing
->
flags
&
XING_BYTES
)
{
if
(
bitlen
<
32
)
goto
fail
;
if
(
bitlen
<
32
)
goto
fail
;
xing
->
bytes
=
mad_bit_read
(
ptr
,
32
);
bitlen
-=
32
;
}
if
(
xing
->
flags
&
XING_TOC
)
{
if
(
bitlen
<
800
)
goto
fail
;
for
(
i
=
0
;
i
<
100
;
++
i
)
xing
->
toc
[
i
]
=
mad_bit_read
(
ptr
,
8
);
if
(
bitlen
<
800
)
goto
fail
;
for
(
i
=
0
;
i
<
100
;
++
i
)
xing
->
toc
[
i
]
=
mad_bit_read
(
ptr
,
8
);
bitlen
-=
800
;
}
if
(
xing
->
flags
&
XING_SCALE
)
{
if
(
bitlen
<
32
)
goto
fail
;
if
(
bitlen
<
32
)
goto
fail
;
xing
->
scale
=
mad_bit_read
(
ptr
,
32
);
bitlen
-=
32
;
}
...
...
@@ -525,8 +512,7 @@ static int parse_xing(struct xing *xing, struct mad_bitptr *ptr, int bitlen)
/* Make sure we consume no less than 120 bytes (960 bits) in hopes that
* the LAME tag is found there, and not right after the Xing header */
bitsleft
=
960
-
(
oldbitlen
-
bitlen
);
if
(
bitsleft
<
0
)
goto
fail
;
if
(
bitsleft
<
0
)
goto
fail
;
else
if
(
bitsleft
>
0
)
{
mad_bit_read
(
ptr
,
bitsleft
);
bitlen
-=
bitsleft
;
...
...
@@ -538,18 +524,17 @@ static int parse_xing(struct xing *xing, struct mad_bitptr *ptr, int bitlen)
return
-
1
;
}
static
int
parse_extension
_header
s
(
struct
xing
*
xing
,
struct
mad_bitptr
ptr
,
int
bitlen
)
static
int
parse_extensions
(
struct
xing
*
xing
,
struct
mad_bitptr
ptr
,
int
bitlen
)
{
bitlen
=
parse_xing
(
xing
,
&
ptr
,
bitlen
);
if
(
bitlen
<
0
)
return
0
;
if
(
bitlen
<
0
)
return
0
;
return
1
;
}
static
int
decodeFirstFrame
(
mp3DecodeData
*
data
,
DecoderControl
*
dc
,
MpdTag
**
tag
,
ReplayGainInfo
**
replayGainInfo
)
MpdTag
**
tag
,
ReplayGainInfo
**
replayGainInfo
)
{
struct
xing
xing
;
int
ret
;
...
...
@@ -560,55 +545,46 @@ static int decodeFirstFrame(mp3DecodeData * data, DecoderControl * dc,
while
(
1
)
{
skip
=
0
;
while
((
ret
=
decodeNextFrameHeader
(
data
,
tag
,
replayGainInfo
))
==
DECODE_CONT
&&
(
!
dc
||
!
dc
->
stop
))
;
if
(
ret
==
DECODE_SKIP
)
skip
=
1
;
else
if
(
ret
==
DECODE_BREAK
||
(
dc
&&
dc
->
stop
))
return
-
1
;
while
((
ret
=
decodeNextFrameHeader
(
data
,
tag
,
replayGainInfo
))
==
DECODE_CONT
&&
(
!
dc
||
!
dc
->
stop
));
if
(
ret
==
DECODE_SKIP
)
skip
=
1
;
else
if
(
ret
==
DECODE_BREAK
||
(
dc
&&
dc
->
stop
))
return
-
1
;
while
((
ret
=
decodeNextFrame
(
data
))
==
DECODE_CONT
&&
(
!
dc
||
!
dc
->
stop
))
;
if
(
ret
==
DECODE_BREAK
||
(
dc
&&
dc
->
stop
))
return
-
1
;
if
(
!
skip
&&
ret
==
DECODE_OK
)
break
;
(
!
dc
||
!
dc
->
stop
));
if
(
ret
==
DECODE_BREAK
||
(
dc
&&
dc
->
stop
))
return
-
1
;
if
(
!
skip
&&
ret
==
DECODE_OK
)
break
;
}
if
(
parse_extension
_header
s
(
&
xing
,
data
->
stream
.
anc_ptr
,
(
int
)
data
->
stream
.
anc_bitlen
))
{
if
(
parse_extensions
(
&
xing
,
data
->
stream
.
anc_ptr
,
(
int
)
data
->
stream
.
anc_bitlen
))
{
if
(
xing
.
flags
&
XING_FRAMES
)
{
mad_timer_t
duration
=
data
->
frame
.
header
.
duration
;
mad_timer_multiply
(
&
duration
,
xing
.
frames
);
data
->
muteFrame
=
MUTEFRAME_SKIP
;
data
->
totalTime
=
((
float
)
mad_timer_count
(
duration
,
MAD_UNITS_MILLISECONDS
))
/
1000
;
data
->
totalTime
=
((
float
)
mad_timer_count
(
duration
,
MAD_UNITS_MILLISECONDS
))
/
1000
;
data
->
maxFrames
=
xing
.
frames
;
}
}
else
{
size_t
offset
=
data
->
inStream
->
offset
;
mad_timer_t
duration
=
data
->
frame
.
header
.
duration
;
float
frameTime
=
((
float
)
mad_timer_count
(
duration
,
MAD_UNITS_MILLISECONDS
))
/
1000
;
if
(
data
->
stream
.
this_frame
!=
NULL
)
{
float
frameTime
=
((
float
)
mad_timer_count
(
duration
,
MAD_UNITS_MILLISECONDS
))
/
1000
;
if
(
data
->
stream
.
this_frame
!=
NULL
)
offset
-=
data
->
stream
.
bufend
-
data
->
stream
.
this_frame
;
}
else
{
else
offset
-=
data
->
stream
.
bufend
-
data
->
stream
.
buffer
;
}
if
(
data
->
inStream
->
size
>=
offset
)
{
data
->
totalTime
=
((
data
->
inStream
->
size
-
offset
)
*
8
.
0
)
/
(
data
->
frame
).
header
.
bitrate
;
data
->
maxFrames
=
data
->
totalTime
/
frameTime
+
FRAMES_CUSHION
;
data
->
totalTime
=
((
data
->
inStream
->
size
-
offset
)
*
8
.
0
)
/
(
data
->
frame
).
header
.
bitrate
;
data
->
maxFrames
=
data
->
totalTime
/
frameTime
+
FRAMES_CUSHION
;
}
else
{
data
->
maxFrames
=
FRAMES_CUSHION
;
data
->
totalTime
=
0
;
}
}
}
data
->
frameOffset
=
malloc
(
sizeof
(
long
)
*
data
->
maxFrames
);
data
->
times
=
malloc
(
sizeof
(
mad_timer_t
)
*
data
->
maxFrames
);
...
...
@@ -622,10 +598,8 @@ static void mp3DecodeDataFinalize(mp3DecodeData * data)
mad_frame_finish
(
&
data
->
frame
);
mad_stream_finish
(
&
data
->
stream
);
if
(
data
->
frameOffset
)
free
(
data
->
frameOffset
);
if
(
data
->
times
)
free
(
data
->
times
);
if
(
data
->
frameOffset
)
free
(
data
->
frameOffset
);
if
(
data
->
times
)
free
(
data
->
times
);
}
/* this is primarily used for getting total time for tags */
...
...
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