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GSoC
GSoC2018
macOS
vlc
Commits
df3af6f1
Commit
df3af6f1
authored
Apr 30, 2008
by
Rémi Denis-Courmont
Browse files
Support for RIFF/MIDI files
parent
8d89d740
Changes
1
Hide whitespace changes
Inline
Side-by-side
modules/demux/smf.c
View file @
df3af6f1
...
...
@@ -87,6 +87,44 @@ static int Open (vlc_object_t * p_this)
if
(
stream_Peek
(
stream
,
&
peek
,
14
)
<
14
)
return
VLC_EGENERIC
;
/* Skip RIFF MIDI header if present */
if
(
!
memcmp
(
peek
,
"RIFF"
,
4
)
&&
!
memcmp
(
peek
+
8
,
"RMID"
,
4
))
{
uint32_t
riff_len
=
GetDWLE
(
peek
+
4
);
msg_Dbg
(
p_this
,
"detected RIFF MIDI file (%u bytes)"
,
(
unsigned
)
riff_len
);
if
((
stream_Read
(
stream
,
NULL
,
12
)
<
12
))
return
VLC_EGENERIC
;
/* Look for the RIFF data chunk */
for
(;;)
{
char
chnk_hdr
[
8
];
uint32_t
chnk_len
;
if
((
riff_len
<
8
)
||
(
stream_Read
(
stream
,
chnk_hdr
,
8
)
<
8
))
return
VLC_EGENERIC
;
riff_len
-=
8
;
chnk_len
=
GetDWLE
(
chnk_hdr
+
4
);
if
(
riff_len
<
chnk_len
)
return
VLC_EGENERIC
;
riff_len
-=
chnk_len
;
if
(
!
memcmp
(
chnk_hdr
,
"data"
,
4
))
break
;
/* found! */
if
(
stream_Read
(
stream
,
NULL
,
chnk_len
)
<
(
ssize_t
)
chnk_len
)
return
VLC_EGENERIC
;
}
/* Read real SMF header. Assume RIFF data chunk length is proper. */
if
(
stream_Peek
(
stream
,
&
peek
,
14
)
<
14
)
return
VLC_EGENERIC
;
}
if
(
memcmp
(
peek
,
"MThd
\x00\x00\x00\x06
"
,
8
))
return
VLC_EGENERIC
;
peek
+=
8
;
...
...
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