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体验新版 GitCode,发现更多精彩内容 >>
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8bcacd9f
编写于
1月 16, 2014
作者:
P
Paul B Mahol
浏览文件
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电子邮件补丁
差异文件
SDR2 demuxer
Signed-off-by:
N
Paul B Mahol
<
onemda@gmail.com
>
上级
b89596a4
变更
3
隐藏空白更改
内联
并排
Showing
3 changed file
with
122 addition
and
0 deletion
+122
-0
libavformat/Makefile
libavformat/Makefile
+1
-0
libavformat/allformats.c
libavformat/allformats.c
+1
-0
libavformat/sdr2.c
libavformat/sdr2.c
+120
-0
未找到文件。
libavformat/Makefile
浏览文件 @
8bcacd9f
...
...
@@ -353,6 +353,7 @@ OBJS-$(CONFIG_SAP_DEMUXER) += sapdec.o
OBJS-$(CONFIG_SAP_MUXER)
+=
sapenc.o
OBJS-$(CONFIG_SBG_DEMUXER)
+=
sbgdec.o
OBJS-$(CONFIG_SDP_DEMUXER)
+=
rtsp.o
OBJS-$(CONFIG_SDR2_DEMUXER)
+=
sdr2.o
OBJS-$(CONFIG_SEGAFILM_DEMUXER)
+=
segafilm.o
OBJS-$(CONFIG_SEGMENT_MUXER)
+=
segment.o
OBJS-$(CONFIG_SHORTEN_DEMUXER)
+=
rawdec.o
...
...
libavformat/allformats.c
浏览文件 @
8bcacd9f
...
...
@@ -249,6 +249,7 @@ void av_register_all(void)
REGISTER_MUXDEMUX
(
SAP
,
sap
);
REGISTER_DEMUXER
(
SBG
,
sbg
);
REGISTER_DEMUXER
(
SDP
,
sdp
);
REGISTER_DEMUXER
(
SDR2
,
sdr2
);
#if CONFIG_RTPDEC
ff_register_rtp_dynamic_payload_handlers
();
ff_register_rdt_dynamic_payload_handlers
();
...
...
libavformat/sdr2.c
0 → 100644
浏览文件 @
8bcacd9f
/*
* SDR2 demuxer
* Copyright (c) 2014 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 "libavutil/intreadwrite.h"
#include "avformat.h"
#include "internal.h"
static
int
sdr2_probe
(
AVProbeData
*
p
)
{
if
(
AV_RL32
(
p
->
buf
)
!=
MKTAG
(
'S'
,
'R'
,
'A'
,
1
))
return
0
;
return
AVPROBE_SCORE_EXTENSION
;
}
#define FIRST 0xA8
static
int
sdr2_read_header
(
AVFormatContext
*
s
)
{
AVStream
*
st
,
*
ast
;
ast
=
avformat_new_stream
(
s
,
0
);
if
(
!
ast
)
return
AVERROR
(
ENOMEM
);
st
=
avformat_new_stream
(
s
,
0
);
if
(
!
st
)
return
AVERROR
(
ENOMEM
);
avio_skip
(
s
->
pb
,
20
);
avpriv_set_pts_info
(
st
,
64
,
1
,
avio_rl32
(
s
->
pb
));
st
->
codec
->
codec_type
=
AVMEDIA_TYPE_VIDEO
;
st
->
codec
->
width
=
avio_rl32
(
s
->
pb
);
st
->
codec
->
height
=
avio_rl32
(
s
->
pb
);
st
->
codec
->
codec_id
=
AV_CODEC_ID_H264
;
ast
->
codec
->
codec_type
=
AVMEDIA_TYPE_AUDIO
;
ast
->
codec
->
channels
=
1
;
ast
->
codec
->
sample_rate
=
8000
;
ast
->
codec
->
codec_id
=
AV_CODEC_ID_PCM_S16LE
;
avpriv_set_pts_info
(
ast
,
64
,
1
,
8000
);
avio_seek
(
s
->
pb
,
FIRST
,
SEEK_SET
);
return
0
;
}
static
const
uint8_t
header
[
24
]
=
{
0x00
,
0x00
,
0x00
,
0x01
,
0x67
,
0x42
,
0x00
,
0x1e
,
0xa6
,
0x80
,
0xb0
,
0x7e
,
0x40
,
0x00
,
0x00
,
0x00
,
0x01
,
0x68
,
0xce
,
0x38
,
0x80
,
0x00
,
0x00
,
0x00
};
static
int
sdr2_read_packet
(
AVFormatContext
*
s
,
AVPacket
*
pkt
)
{
int64_t
pos
;
unsigned
next
;
int
flags
,
ret
=
0
,
is_video
;
pos
=
avio_tell
(
s
->
pb
);
flags
=
avio_rl32
(
s
->
pb
);
avio_skip
(
s
->
pb
,
4
);
next
=
avio_rl32
(
s
->
pb
);
if
(
next
<=
52
)
return
AVERROR_INVALIDDATA
;
avio_skip
(
s
->
pb
,
6
);
is_video
=
avio_rl32
(
s
->
pb
);
avio_skip
(
s
->
pb
,
30
);
if
(
pos
==
FIRST
)
{
if
(
av_new_packet
(
pkt
,
next
-
52
+
24
)
<
0
)
return
AVERROR
(
ENOMEM
);
memcpy
(
pkt
->
data
,
header
,
24
);
ret
=
avio_read
(
s
->
pb
,
pkt
->
data
+
24
,
next
-
52
);
if
(
ret
<
0
)
{
av_free_packet
(
pkt
);
return
ret
;
}
av_shrink_packet
(
pkt
,
ret
+
24
);
}
else
{
ret
=
av_get_packet
(
s
->
pb
,
pkt
,
next
-
52
);
}
pkt
->
stream_index
=
!!
is_video
;
pkt
->
pos
=
pos
;
if
(
flags
&
(
1
<<
12
))
pkt
->
flags
|=
AV_PKT_FLAG_KEY
;
return
ret
;
}
AVInputFormat
ff_sdr2_demuxer
=
{
.
name
=
"sdr2"
,
.
long_name
=
NULL_IF_CONFIG_SMALL
(
"SDR2"
),
.
read_probe
=
sdr2_probe
,
.
read_header
=
sdr2_read_header
,
.
read_packet
=
sdr2_read_packet
,
.
extensions
=
"sdr2"
,
.
flags
=
AVFMT_GENERIC_INDEX
,
};
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