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Linshizhi
ffmpeg.wasm-core
Commits
25b143aa
Commit
25b143aa
authored
Mar 29, 2013
by
Matthieu Bouron
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lavf/mxfdec: handle identification metadata
parent
018cc6f0
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1 changed file
with
115 additions
and
0 deletions
+115
-0
mxfdec.c
libavformat/mxfdec.c
+115
-0
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libavformat/mxfdec.c
View file @
25b143aa
...
...
@@ -1619,6 +1619,120 @@ fail_and_free:
return
ret
;
}
static
int
mxf_read_utf16_string
(
AVIOContext
*
pb
,
int
size
,
char
**
str
)
{
int
ret
;
size_t
buf_size
;
if
(
size
<
0
)
return
AVERROR
(
EINVAL
);
buf_size
=
size
+
size
/
2
+
1
;
*
str
=
av_malloc
(
buf_size
);
if
(
!*
str
)
return
AVERROR
(
ENOMEM
);
if
((
ret
=
avio_get_str16be
(
pb
,
size
,
*
str
,
buf_size
))
<
0
)
{
av_freep
(
str
);
return
ret
;
}
return
ret
;
}
static
int
mxf_uid_to_str
(
UID
uid
,
char
**
str
)
{
int
i
;
char
*
p
;
p
=
*
str
=
av_mallocz
(
sizeof
(
UID
)
*
2
+
4
+
1
);
if
(
!
p
)
return
AVERROR
(
ENOMEM
);
for
(
i
=
0
;
i
<
sizeof
(
UID
);
i
++
)
{
snprintf
(
p
,
2
+
1
,
"%.2x"
,
uid
[
i
]);
p
+=
2
;
if
(
i
==
3
||
i
==
5
||
i
==
7
||
i
==
9
)
{
snprintf
(
p
,
1
+
1
,
"-"
);
p
++
;
}
}
return
0
;
}
static
int
mxf_timestamp_to_str
(
uint64_t
timestamp
,
char
**
str
)
{
struct
tm
time
;
time
.
tm_year
=
(
timestamp
>>
48
)
-
1900
;
time
.
tm_mon
=
(
timestamp
>>
48
&
0xF
)
-
1
;
time
.
tm_mday
=
(
timestamp
>>
32
&
0xF
);
time
.
tm_hour
=
(
timestamp
>>
24
&
0XF
);
time
.
tm_min
=
(
timestamp
>>
16
&
0xF
);
time
.
tm_sec
=
(
timestamp
>>
8
&
0xF
);
*
str
=
av_mallocz
(
32
);
if
(
!*
str
)
return
AVERROR
(
ENOMEM
);
strftime
(
*
str
,
32
,
"%F %T"
,
&
time
);
return
0
;
}
#define SET_STR_METADATA(pb, name, str) do { \
if ((ret = mxf_read_utf16_string(pb, size, &str)) < 0) \
return ret; \
av_dict_set(&s->metadata, name, str, AV_DICT_DONT_STRDUP_VAL); \
} while (0)
#define SET_UID_METADATA(pb, name, var, str) do { \
avio_read(pb, var, 16); \
if ((ret = mxf_uid_to_str(var, &str)) < 0) \
return ret; \
av_dict_set(&s->metadata, name, str, AV_DICT_DONT_STRDUP_VAL); \
} while (0)
#define SET_TS_METADATA(pb, name, var, str) do { \
var = avio_rb64(pb); \
if ((ret = mxf_timestamp_to_str(var, &str)) < 0) \
return ret; \
av_dict_set(&s->metadata, name, str, AV_DICT_DONT_STRDUP_VAL); \
} while (0)
static
int
mxf_read_identification_metadata
(
void
*
arg
,
AVIOContext
*
pb
,
int
tag
,
int
size
,
UID
_uid
,
int64_t
klv_offset
)
{
MXFContext
*
mxf
=
arg
;
AVFormatContext
*
s
=
mxf
->
fc
;
int
ret
;
UID
uid
=
{
0
};
char
*
str
=
NULL
;
uint64_t
ts
;
switch
(
tag
)
{
case
0x3C01
:
SET_STR_METADATA
(
pb
,
"company_name"
,
str
);
break
;
case
0x3C02
:
SET_STR_METADATA
(
pb
,
"product_name"
,
str
);
break
;
case
0x3C04
:
SET_STR_METADATA
(
pb
,
"product_version"
,
str
);
break
;
case
0x3C05
:
SET_UID_METADATA
(
pb
,
"product_uid"
,
uid
,
str
);
break
;
case
0x3C06
:
SET_TS_METADATA
(
pb
,
"modification_date"
,
ts
,
str
);
break
;
case
0x3C08
:
SET_STR_METADATA
(
pb
,
"application_platform"
,
str
);
break
;
case
0x3C09
:
SET_UID_METADATA
(
pb
,
"generation_uid"
,
uid
,
str
);
break
;
case
0x3C0A
:
SET_UID_METADATA
(
pb
,
"uid"
,
uid
,
str
);
break
;
}
return
0
;
}
static
const
MXFMetadataReadTableEntry
mxf_metadata_read_table
[]
=
{
{
{
0x06
,
0x0E
,
0x2B
,
0x34
,
0x02
,
0x05
,
0x01
,
0x01
,
0x0d
,
0x01
,
0x02
,
0x01
,
0x01
,
0x05
,
0x01
,
0x00
},
mxf_read_primer_pack
},
{
{
0x06
,
0x0E
,
0x2B
,
0x34
,
0x02
,
0x05
,
0x01
,
0x01
,
0x0d
,
0x01
,
0x02
,
0x01
,
0x01
,
0x02
,
0x01
,
0x00
},
mxf_read_partition_pack
},
...
...
@@ -1631,6 +1745,7 @@ static const MXFMetadataReadTableEntry mxf_metadata_read_table[] = {
{
{
0x06
,
0x0E
,
0x2B
,
0x34
,
0x02
,
0x05
,
0x01
,
0x01
,
0x0d
,
0x01
,
0x02
,
0x01
,
0x01
,
0x03
,
0x04
,
0x00
},
mxf_read_partition_pack
},
{
{
0x06
,
0x0E
,
0x2B
,
0x34
,
0x02
,
0x05
,
0x01
,
0x01
,
0x0d
,
0x01
,
0x02
,
0x01
,
0x01
,
0x04
,
0x02
,
0x00
},
mxf_read_partition_pack
},
{
{
0x06
,
0x0E
,
0x2B
,
0x34
,
0x02
,
0x05
,
0x01
,
0x01
,
0x0d
,
0x01
,
0x02
,
0x01
,
0x01
,
0x04
,
0x04
,
0x00
},
mxf_read_partition_pack
},
{
{
0x06
,
0x0E
,
0x2B
,
0x34
,
0x02
,
0x53
,
0x01
,
0x01
,
0x0D
,
0x01
,
0x01
,
0x01
,
0x01
,
0x01
,
0x30
,
0x00
},
mxf_read_identification_metadata
},
{
{
0x06
,
0x0E
,
0x2B
,
0x34
,
0x02
,
0x53
,
0x01
,
0x01
,
0x0d
,
0x01
,
0x01
,
0x01
,
0x01
,
0x01
,
0x18
,
0x00
},
mxf_read_content_storage
,
0
,
AnyType
},
{
{
0x06
,
0x0E
,
0x2B
,
0x34
,
0x02
,
0x53
,
0x01
,
0x01
,
0x0d
,
0x01
,
0x01
,
0x01
,
0x01
,
0x01
,
0x37
,
0x00
},
mxf_read_source_package
,
sizeof
(
MXFPackage
),
SourcePackage
},
{
{
0x06
,
0x0E
,
0x2B
,
0x34
,
0x02
,
0x53
,
0x01
,
0x01
,
0x0d
,
0x01
,
0x01
,
0x01
,
0x01
,
0x01
,
0x36
,
0x00
},
mxf_read_material_package
,
sizeof
(
MXFPackage
),
MaterialPackage
},
...
...
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