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videolan
libdvbpsi
Commits
6befa2b6
Commit
6befa2b6
authored
Apr 11, 2014
by
Jean-Paul Saman
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check_cc_pid: Check continuity counter for only 1 PID.
parent
a4fddc3a
Changes
3
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3 changed files
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77 additions
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1 deletion
+77
-1
.gitignore
.gitignore
+1
-0
examples/Makefile.am
examples/Makefile.am
+5
-1
examples/check_cc_pid.c
examples/check_cc_pid.c
+71
-0
No files found.
.gitignore
View file @
6befa2b6
...
...
@@ -24,6 +24,7 @@ stamp-*
*-stamp
doc/doxygen
doc/decoder.png
examples/check_cc_pid
examples/decode_mpeg
examples/decode_pat
examples/decode_pmt
...
...
examples/Makefile.am
View file @
6befa2b6
...
...
@@ -3,12 +3,16 @@
SUBDIRS
=
dvbinfo
DIST_SUBDIRS
=
$(SUBDIRS)
noinst_PROGRAMS
=
decode_pat decode_pmt get_pcr_pid decode_sdt decode_mpeg decode_bat dump_pids
noinst_PROGRAMS
=
decode_pat decode_pmt get_pcr_pid decode_sdt decode_mpeg decode_bat dump_pids
check_cc_pid
dump_pids_SOURCES
=
dump_pids.c
dump_pids_CPPFLAGS
=
dump_pids_LDFLAGS
=
check_cc_pid_SOURCES
=
check_cc_pid.c
check_cc_pid_CPPFLAGS
=
check_cc_pid_LDFLAGS
=
decode_pat_SOURCES
=
decode_pat.c
decode_pat_CPPFLAGS
=
-DDVBPSI_DIST
decode_pat_LDFLAGS
=
-L
../src
-ldvbpsi
...
...
examples/check_cc_pid.c
0 → 100644
View file @
6befa2b6
#include "config.h"
#if defined(HAVE_INTTYPES_H)
# include <inttypes.h>
#elif defined(HAVE_STDINT_H)
# include <stdint.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <assert.h>
static
inline
uint32_t
ts_getcc
(
uint8_t
*
packet
)
{
return
(
packet
[
3
]
&
0x0f
);
}
static
inline
uint32_t
ts_getpid
(
uint8_t
*
packet
)
{
assert
(
packet
[
0
]
==
0x47
);
return
((
uint16_t
)(
packet
[
1
]
&
0x1f
)
<<
8
)
+
packet
[
2
];
}
int
main
(
int
argc
,
char
*
argv
[])
{
if
(
argc
!=
3
)
{
printf
(
"Usage: check_cc_pid <filename> <pid>
\n
"
);
return
-
1
;
}
/* Get arguments */
char
*
fname
=
argv
[
1
];
uint32_t
tpid
=
atoi
(
argv
[
2
]);
/* PID to track */
int
file
=
open
(
fname
,
O_RDONLY
|
O_NONBLOCK
);
if
(
file
<
0
)
{
perror
(
argv
[
1
]);
printf
(
"error opening %s
\n
"
,
argv
[
1
]);
return
-
1
;
}
int32_t
s
=
188
;
/* COULD ALSO BE 192 */
uint8_t
p
[
188
]
=
{
0
};
int64_t
n
=
0
;
size_t
len
=
0
;
uint32_t
tcc
=
0
;
for
(;;)
{
/* slow read */
len
=
read
(
file
,
&
p
[
0
],
s
);
if
(
len
==
0
)
break
;
uint32_t
pid
=
ts_getpid
(
&
p
[
0
]);
uint32_t
cc
=
ts_getcc
(
&
p
[
0
]);
n
++
;
tcc
=
cc
;
if
(
pid
==
tpid
)
printf
(
"packet %ld, pid %u (0x%x), cc %d %s
\n
"
,
n
,
pid
,
pid
,
cc
,
((
cc
%
16
)
==
(
tcc
+
1
)
%
16
)
?
"discontinuity"
:
""
);
}
close
(
file
);
return
0
;
}
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