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Linshizhi
ffmpeg.wasm-core
Commits
a3a0774b
Commit
a3a0774b
authored
Feb 06, 2012
by
Paul B Mahol
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WavPack muxer
parent
706bd8ea
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3 changed files
with
99 additions
and
1 deletion
+99
-1
Makefile
libavformat/Makefile
+1
-0
allformats.c
libavformat/allformats.c
+1
-1
wvenc.c
libavformat/wvenc.c
+97
-0
No files found.
libavformat/Makefile
View file @
a3a0774b
...
...
@@ -357,6 +357,7 @@ OBJS-$(CONFIG_WTV_DEMUXER) += wtvdec.o wtv.o asfdec.o asf.o asfcry
avlanguage.o
mpegts.o
isom.o
OBJS-$(CONFIG_WTV_MUXER)
+=
wtvenc.o
wtv.o
asf.o
asfenc.o
OBJS-$(CONFIG_WV_DEMUXER)
+=
wv.o
apetag.o
img2.o
OBJS-$(CONFIG_WV_MUXER)
+=
wvenc.o
OBJS-$(CONFIG_XA_DEMUXER)
+=
xa.o
OBJS-$(CONFIG_XBIN_DEMUXER)
+=
bintext.o
sauce.o
OBJS-$(CONFIG_XMV_DEMUXER)
+=
xmv.o
...
...
libavformat/allformats.c
View file @
a3a0774b
...
...
@@ -253,7 +253,7 @@ void av_register_all(void)
REGISTER_DEMUXER
(
WSAUD
,
wsaud
);
REGISTER_DEMUXER
(
WSVQA
,
wsvqa
);
REGISTER_MUXDEMUX
(
WTV
,
wtv
);
REGISTER_
DEMUXER
(
WV
,
wv
);
REGISTER_
MUXDEMUX
(
WV
,
wv
);
REGISTER_DEMUXER
(
XA
,
xa
);
REGISTER_DEMUXER
(
XBIN
,
xbin
);
REGISTER_DEMUXER
(
XMV
,
xmv
);
...
...
libavformat/wvenc.c
0 → 100644
View file @
a3a0774b
/*
* WavPack muxer
* Copyright (c) 2012 Paul B Mahol
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "avformat.h"
#include "internal.h"
#include "avio_internal.h"
typedef
struct
{
uint32_t
duration
;
int
off
;
}
WVMuxContext
;
static
int
write_header
(
AVFormatContext
*
s
)
{
WVMuxContext
*
wc
=
s
->
priv_data
;
AVCodecContext
*
codec
=
s
->
streams
[
0
]
->
codec
;
if
(
s
->
nb_streams
>
1
)
{
av_log
(
s
,
AV_LOG_ERROR
,
"only one stream is supported
\n
"
);
return
AVERROR
(
EINVAL
);
}
if
(
codec
->
codec_id
!=
CODEC_ID_WAVPACK
)
{
av_log
(
s
,
AV_LOG_ERROR
,
"unsupported codec
\n
"
);
return
AVERROR
(
EINVAL
);
}
if
(
codec
->
extradata_size
>
0
)
{
av_log_missing_feature
(
s
,
"remuxing from matroska container"
,
0
);
return
AVERROR_PATCHWELCOME
;
}
wc
->
off
=
codec
->
channels
>
2
?
4
:
0
;
avpriv_set_pts_info
(
s
->
streams
[
0
],
64
,
1
,
codec
->
sample_rate
);
return
0
;
}
static
int
write_packet
(
AVFormatContext
*
s
,
AVPacket
*
pkt
)
{
WVMuxContext
*
wc
=
s
->
priv_data
;
AVIOContext
*
pb
=
s
->
pb
;
wc
->
duration
+=
pkt
->
duration
;
ffio_wfourcc
(
pb
,
"wvpk"
);
avio_wl32
(
pb
,
pkt
->
size
+
12
+
wc
->
off
);
avio_wl16
(
pb
,
0x410
);
avio_w8
(
pb
,
0
);
avio_w8
(
pb
,
0
);
avio_wl32
(
pb
,
-
1
);
avio_wl32
(
pb
,
pkt
->
pts
);
avio_write
(
s
->
pb
,
pkt
->
data
,
pkt
->
size
);
avio_flush
(
s
->
pb
);
return
0
;
}
static
int
write_trailer
(
AVFormatContext
*
s
)
{
WVMuxContext
*
wc
=
s
->
priv_data
;
AVIOContext
*
pb
=
s
->
pb
;
if
(
pb
->
seekable
)
{
avio_seek
(
pb
,
12
,
SEEK_SET
);
avio_wl32
(
pb
,
wc
->
duration
);
avio_flush
(
pb
);
}
return
0
;
}
AVOutputFormat
ff_wv_muxer
=
{
.
name
=
"wv"
,
.
long_name
=
NULL_IF_CONFIG_SMALL
(
"WavPack"
),
.
priv_data_size
=
sizeof
(
WVMuxContext
),
.
extensions
=
"wv"
,
.
audio_codec
=
CODEC_ID_WAVPACK
,
.
video_codec
=
CODEC_ID_NONE
,
.
write_header
=
write_header
,
.
write_packet
=
write_packet
,
.
write_trailer
=
write_trailer
,
};
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