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Linshizhi
ffmpeg.wasm-core
Commits
bcc1f7ca
Commit
bcc1f7ca
authored
Sep 27, 2012
by
Nathan Caldwell
Committed by
Diego Biurrun
Sep 27, 2012
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Add Opus support to the Ogg muxer.
Signed-off-by:
Diego Biurrun
<
diego@biurrun.de
>
parent
2a3d82ab
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Showing
2 changed files
with
52 additions
and
6 deletions
+52
-6
oggenc.c
libavformat/oggenc.c
+51
-5
version.h
libavformat/version.h
+1
-1
No files found.
libavformat/oggenc.c
View file @
bcc1f7ca
...
...
@@ -336,6 +336,35 @@ static int ogg_build_speex_headers(AVCodecContext *avctx,
return
0
;
}
#define OPUS_HEADER_SIZE 19
static
int
ogg_build_opus_headers
(
AVCodecContext
*
avctx
,
OGGStreamContext
*
oggstream
,
int
bitexact
,
AVDictionary
**
m
)
{
uint8_t
*
p
;
if
(
avctx
->
extradata_size
<
OPUS_HEADER_SIZE
)
return
-
1
;
/* first packet: Opus header */
p
=
av_mallocz
(
avctx
->
extradata_size
);
if
(
!
p
)
return
AVERROR
(
ENOMEM
);
oggstream
->
header
[
0
]
=
p
;
oggstream
->
header_len
[
0
]
=
avctx
->
extradata_size
;
bytestream_put_buffer
(
&
p
,
avctx
->
extradata
,
avctx
->
extradata_size
);
/* second packet: VorbisComment */
p
=
ogg_write_vorbiscomment
(
8
,
bitexact
,
&
oggstream
->
header_len
[
1
],
m
,
0
);
if
(
!
p
)
return
AVERROR
(
ENOMEM
);
oggstream
->
header
[
1
]
=
p
;
bytestream_put_buffer
(
&
p
,
"OpusTags"
,
8
);
return
0
;
}
static
int
ogg_write_header
(
AVFormatContext
*
s
)
{
OGGStreamContext
*
oggstream
;
...
...
@@ -346,13 +375,18 @@ static int ogg_write_header(AVFormatContext *s)
unsigned
serial_num
=
i
;
if
(
st
->
codec
->
codec_type
==
AVMEDIA_TYPE_AUDIO
)
avpriv_set_pts_info
(
st
,
64
,
1
,
st
->
codec
->
sample_rate
);
if
(
st
->
codec
->
codec_id
==
AV_CODEC_ID_OPUS
)
/* Opus requires a fixed 48kHz clock */
avpriv_set_pts_info
(
st
,
64
,
1
,
48000
);
else
avpriv_set_pts_info
(
st
,
64
,
1
,
st
->
codec
->
sample_rate
);
else
if
(
st
->
codec
->
codec_type
==
AVMEDIA_TYPE_VIDEO
)
avpriv_set_pts_info
(
st
,
64
,
st
->
codec
->
time_base
.
num
,
st
->
codec
->
time_base
.
den
);
if
(
st
->
codec
->
codec_id
!=
AV_CODEC_ID_VORBIS
&&
st
->
codec
->
codec_id
!=
AV_CODEC_ID_THEORA
&&
st
->
codec
->
codec_id
!=
AV_CODEC_ID_SPEEX
&&
st
->
codec
->
codec_id
!=
AV_CODEC_ID_FLAC
)
{
st
->
codec
->
codec_id
!=
AV_CODEC_ID_FLAC
&&
st
->
codec
->
codec_id
!=
AV_CODEC_ID_OPUS
)
{
av_log
(
s
,
AV_LOG_ERROR
,
"Unsupported codec id in stream %d
\n
"
,
i
);
return
-
1
;
}
...
...
@@ -394,6 +428,15 @@ static int ogg_write_header(AVFormatContext *s)
av_freep
(
&
st
->
priv_data
);
return
err
;
}
}
else
if
(
st
->
codec
->
codec_id
==
AV_CODEC_ID_OPUS
)
{
int
err
=
ogg_build_opus_headers
(
st
->
codec
,
oggstream
,
st
->
codec
->
flags
&
CODEC_FLAG_BITEXACT
,
&
s
->
metadata
);
if
(
err
)
{
av_log
(
s
,
AV_LOG_ERROR
,
"Error writing Opus headers
\n
"
);
av_freep
(
&
st
->
priv_data
);
return
err
;
}
}
else
{
uint8_t
*
p
;
const
char
*
cstr
=
st
->
codec
->
codec_id
==
AV_CODEC_ID_VORBIS
?
"vorbis"
:
"theora"
;
...
...
@@ -490,7 +533,9 @@ static int ogg_write_packet(AVFormatContext *s, AVPacket *pkt)
pframe_count
=
0
;
}
granule
=
(
oggstream
->
last_kf_pts
<<
oggstream
->
kfgshift
)
|
pframe_count
;
}
else
}
else
if
(
st
->
codec
->
codec_id
==
AV_CODEC_ID_OPUS
)
granule
=
pkt
->
pts
+
pkt
->
duration
+
av_rescale_q
(
st
->
codec
->
delay
,
(
AVRational
){
1
,
st
->
codec
->
sample_rate
},
st
->
time_base
);
else
granule
=
pkt
->
pts
+
pkt
->
duration
;
ret
=
ogg_buffer_data
(
s
,
st
,
pkt
->
data
,
pkt
->
size
,
granule
,
0
);
...
...
@@ -518,7 +563,8 @@ static int ogg_write_trailer(AVFormatContext *s)
AVStream
*
st
=
s
->
streams
[
i
];
OGGStreamContext
*
oggstream
=
st
->
priv_data
;
if
(
st
->
codec
->
codec_id
==
AV_CODEC_ID_FLAC
||
st
->
codec
->
codec_id
==
AV_CODEC_ID_SPEEX
)
{
st
->
codec
->
codec_id
==
AV_CODEC_ID_SPEEX
||
st
->
codec
->
codec_id
==
AV_CODEC_ID_OPUS
)
{
av_free
(
oggstream
->
header
[
0
]);
}
av_freep
(
&
oggstream
->
header
[
1
]);
...
...
@@ -531,7 +577,7 @@ AVOutputFormat ff_ogg_muxer = {
.
name
=
"ogg"
,
.
long_name
=
NULL_IF_CONFIG_SMALL
(
"Ogg"
),
.
mime_type
=
"application/ogg"
,
.
extensions
=
"ogg,ogv,spx"
,
.
extensions
=
"ogg,ogv,spx
,opus
"
,
.
priv_data_size
=
sizeof
(
OGGContext
),
.
audio_codec
=
AV_CODEC_ID_FLAC
,
.
video_codec
=
AV_CODEC_ID_THEORA
,
...
...
libavformat/version.h
View file @
bcc1f7ca
...
...
@@ -31,7 +31,7 @@
#define LIBAVFORMAT_VERSION_MAJOR 54
#define LIBAVFORMAT_VERSION_MINOR 17
#define LIBAVFORMAT_VERSION_MICRO
2
#define LIBAVFORMAT_VERSION_MICRO
3
#define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \
LIBAVFORMAT_VERSION_MINOR, \
...
...
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