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Stefan Westerfeld
ffmpeg
Commits
e91bc521
Commit
e91bc521
authored
Sep 09, 2022
by
Paul B Mahol
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avcodec: add Micronas SC-4 parser
parent
ea93943b
Changes
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83 additions
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0 deletions
+83
-0
Makefile
libavcodec/Makefile
+1
-0
misc4_parser.c
libavcodec/misc4_parser.c
+81
-0
parsers.c
libavcodec/parsers.c
+1
-0
No files found.
libavcodec/Makefile
View file @
e91bc521
...
@@ -1143,6 +1143,7 @@ OBJS-$(CONFIG_HEVC_PARSER) += hevc_parser.o hevc_data.o
...
@@ -1143,6 +1143,7 @@ OBJS-$(CONFIG_HEVC_PARSER) += hevc_parser.o hevc_data.o
OBJS-$(CONFIG_HDR_PARSER)
+=
hdr_parser.o
OBJS-$(CONFIG_HDR_PARSER)
+=
hdr_parser.o
OBJS-$(CONFIG_IPU_PARSER)
+=
ipu_parser.o
OBJS-$(CONFIG_IPU_PARSER)
+=
ipu_parser.o
OBJS-$(CONFIG_JPEG2000_PARSER)
+=
jpeg2000_parser.o
OBJS-$(CONFIG_JPEG2000_PARSER)
+=
jpeg2000_parser.o
OBJS-$(CONFIG_MISC4_PARSER)
+=
misc4_parser.o
OBJS-$(CONFIG_MJPEG_PARSER)
+=
mjpeg_parser.o
OBJS-$(CONFIG_MJPEG_PARSER)
+=
mjpeg_parser.o
OBJS-$(CONFIG_MLP_PARSER)
+=
mlp_parse.o
mlp_parser.o
mlp.o
OBJS-$(CONFIG_MLP_PARSER)
+=
mlp_parse.o
mlp_parser.o
mlp.o
OBJS-$(CONFIG_MPEG4VIDEO_PARSER)
+=
mpeg4video_parser.o
h263.o
\
OBJS-$(CONFIG_MPEG4VIDEO_PARSER)
+=
mpeg4video_parser.o
h263.o
\
...
...
libavcodec/misc4_parser.c
0 → 100644
View file @
e91bc521
/*
* Micronas SC-4 parser
*
* 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 "parser.h"
typedef
struct
MISC4Context
{
ParseContext
pc
;
}
MISC4Context
;
static
int
misc4_parse
(
AVCodecParserContext
*
s
,
AVCodecContext
*
avctx
,
const
uint8_t
**
poutbuf
,
int
*
poutbuf_size
,
const
uint8_t
*
buf
,
int
buf_size
)
{
MISC4Context
*
ctx
=
s
->
priv_data
;
uint32_t
state
=
ctx
->
pc
.
state
;
int
next
=
END_NOT_FOUND
,
i
=
0
;
*
poutbuf_size
=
0
;
*
poutbuf
=
NULL
;
if
(
s
->
flags
&
PARSER_FLAG_COMPLETE_FRAMES
)
{
next
=
buf_size
;
}
else
{
uint32_t
marker
=
0
;
switch
(
avctx
->
sample_rate
)
{
case
8000
:
case
11025
:
marker
=
0x11b
;
break
;
case
16000
:
case
32000
:
marker
=
0x2b2
;
break
;
}
for
(;
i
<
buf_size
;
i
++
)
{
state
=
(
state
<<
8
)
|
buf
[
i
];
if
(
state
==
marker
&&
i
>
3
)
{
next
=
i
-
3
;
break
;
}
}
ctx
->
pc
.
state
=
state
;
if
(
ff_combine_frame
(
&
ctx
->
pc
,
next
,
&
buf
,
&
buf_size
)
<
0
)
{
*
poutbuf
=
NULL
;
*
poutbuf_size
=
0
;
return
buf_size
;
}
}
*
poutbuf
=
buf
;
*
poutbuf_size
=
buf_size
;
return
next
;
}
const
AVCodecParser
ff_misc4_parser
=
{
.
codec_ids
=
{
AV_CODEC_ID_MISC4
},
.
priv_data_size
=
sizeof
(
MISC4Context
),
.
parser_parse
=
misc4_parse
,
.
parser_close
=
ff_parse_close
,
};
libavcodec/parsers.c
View file @
e91bc521
...
@@ -53,6 +53,7 @@ extern const AVCodecParser ff_hevc_parser;
...
@@ -53,6 +53,7 @@ extern const AVCodecParser ff_hevc_parser;
extern
const
AVCodecParser
ff_hdr_parser
;
extern
const
AVCodecParser
ff_hdr_parser
;
extern
const
AVCodecParser
ff_ipu_parser
;
extern
const
AVCodecParser
ff_ipu_parser
;
extern
const
AVCodecParser
ff_jpeg2000_parser
;
extern
const
AVCodecParser
ff_jpeg2000_parser
;
extern
const
AVCodecParser
ff_misc4_parser
;
extern
const
AVCodecParser
ff_mjpeg_parser
;
extern
const
AVCodecParser
ff_mjpeg_parser
;
extern
const
AVCodecParser
ff_mlp_parser
;
extern
const
AVCodecParser
ff_mlp_parser
;
extern
const
AVCodecParser
ff_mpeg4video_parser
;
extern
const
AVCodecParser
ff_mpeg4video_parser
;
...
...
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