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Linshizhi
ffmpeg.wasm-core
Commits
df20619b
Commit
df20619b
authored
Nov 24, 2017
by
James Almer
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avformat/avc: reindent after the last commit
Signed-off-by:
James Almer
<
jamrial@gmail.com
>
parent
9cd361c5
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1 changed file
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46 additions
and
45 deletions
+46
-45
avc.c
libavformat/avc.c
+46
-45
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libavformat/avc.c
View file @
df20619b
...
...
@@ -113,54 +113,55 @@ int ff_isom_write_avcc(AVIOContext *pb, const uint8_t *data, int len)
if
(
len
<=
6
)
return
AVERROR_INVALIDDATA
;
/* check for H.264 start code */
if
(
AV_RB32
(
data
)
!=
0x00000001
&&
AV_RB24
(
data
)
!=
0x000001
)
{
avio_write
(
pb
,
data
,
len
);
return
0
;
/* check for H.264 start code */
if
(
AV_RB32
(
data
)
!=
0x00000001
&&
AV_RB24
(
data
)
!=
0x000001
)
{
avio_write
(
pb
,
data
,
len
);
return
0
;
}
ret
=
ff_avc_parse_nal_units_buf
(
data
,
&
buf
,
&
len
);
if
(
ret
<
0
)
return
ret
;
start
=
buf
;
end
=
buf
+
len
;
/* look for sps and pps */
while
(
end
-
buf
>
4
)
{
uint32_t
size
;
uint8_t
nal_type
;
size
=
FFMIN
(
AV_RB32
(
buf
),
end
-
buf
-
4
);
buf
+=
4
;
nal_type
=
buf
[
0
]
&
0x1f
;
if
(
nal_type
==
7
)
{
/* SPS */
sps
=
buf
;
sps_size
=
size
;
}
else
if
(
nal_type
==
8
)
{
/* PPS */
pps
=
buf
;
pps_size
=
size
;
}
ret
=
ff_avc_parse_nal_units_buf
(
data
,
&
buf
,
&
len
);
if
(
ret
<
0
)
return
ret
;
start
=
buf
;
end
=
buf
+
len
;
/* look for sps and pps */
while
(
end
-
buf
>
4
)
{
uint32_t
size
;
uint8_t
nal_type
;
size
=
FFMIN
(
AV_RB32
(
buf
),
end
-
buf
-
4
);
buf
+=
4
;
nal_type
=
buf
[
0
]
&
0x1f
;
if
(
nal_type
==
7
)
{
/* SPS */
sps
=
buf
;
sps_size
=
size
;
}
else
if
(
nal_type
==
8
)
{
/* PPS */
pps
=
buf
;
pps_size
=
size
;
}
buf
+=
size
;
}
buf
+=
size
;
}
if
(
!
sps
||
!
pps
||
sps_size
<
4
||
sps_size
>
UINT16_MAX
||
pps_size
>
UINT16_MAX
)
return
AVERROR_INVALIDDATA
;
avio_w8
(
pb
,
1
);
/* version */
avio_w8
(
pb
,
sps
[
1
]);
/* profile */
avio_w8
(
pb
,
sps
[
2
]);
/* profile compat */
avio_w8
(
pb
,
sps
[
3
]);
/* level */
avio_w8
(
pb
,
0xff
);
/* 6 bits reserved (111111) + 2 bits nal size length - 1 (11) */
avio_w8
(
pb
,
0xe1
);
/* 3 bits reserved (111) + 5 bits number of sps (00001) */
avio_wb16
(
pb
,
sps_size
);
avio_write
(
pb
,
sps
,
sps_size
);
avio_w8
(
pb
,
1
);
/* number of pps */
avio_wb16
(
pb
,
pps_size
);
avio_write
(
pb
,
pps
,
pps_size
);
av_free
(
start
);
if
(
!
sps
||
!
pps
||
sps_size
<
4
||
sps_size
>
UINT16_MAX
||
pps_size
>
UINT16_MAX
)
return
AVERROR_INVALIDDATA
;
avio_w8
(
pb
,
1
);
/* version */
avio_w8
(
pb
,
sps
[
1
]);
/* profile */
avio_w8
(
pb
,
sps
[
2
]);
/* profile compat */
avio_w8
(
pb
,
sps
[
3
]);
/* level */
avio_w8
(
pb
,
0xff
);
/* 6 bits reserved (111111) + 2 bits nal size length - 1 (11) */
avio_w8
(
pb
,
0xe1
);
/* 3 bits reserved (111) + 5 bits number of sps (00001) */
avio_wb16
(
pb
,
sps_size
);
avio_write
(
pb
,
sps
,
sps_size
);
avio_w8
(
pb
,
1
);
/* number of pps */
avio_wb16
(
pb
,
pps_size
);
avio_write
(
pb
,
pps
,
pps_size
);
av_free
(
start
);
return
0
;
}
...
...
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