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Elphel
elphel-apps-astreamer
Commits
d8ae21c5
Commit
d8ae21c5
authored
Feb 27, 2017
by
Mikhail Karpenko
Browse files
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Plain Diff
Fix one error with buffer roll over, add debug to rtp_stream
parent
203b583d
Changes
3
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3 changed files
with
84 additions
and
54 deletions
+84
-54
rtp_stream.cpp
src/rtp_stream.cpp
+53
-47
video.cpp
src/video.cpp
+29
-7
video.h
src/video.h
+2
-0
No files found.
src/rtp_stream.cpp
View file @
d8ae21c5
/**
/**
* @file
FILENAME
* @file
rtp_stream.cpp
* @brief B
RIEF DESCRIPTION
* @brief B
ase class for RTP streams
* @copyright Copyright (C)
YEAR
Elphel Inc.
* @copyright Copyright (C)
2017
Elphel Inc.
* @author AUTHOR <EMAIL>
* @author AUTHOR <EMAIL>
*
*
* @par License:
* @par License:
...
@@ -21,18 +21,23 @@
...
@@ -21,18 +21,23 @@
#include <arpa/inet.h>
#include <arpa/inet.h>
#include <iostream>
#include <iostream>
#include "rtp_stream.h"
#include "rtp_stream.h"
#include "helper.h"
#include "helper.h"
using
namespace
std
;
using
namespace
std
;
#define CNAME "elphel3
5
3"
#define CNAME "elphel3
9
3"
#undef RTP_DEBUG
//
#undef RTP_DEBUG
//
#define RTP_DEBUG
#define RTP_DEBUG
#ifdef RTP_DEBUG
#ifdef RTP_DEBUG
#define D(a) a
#define D(s_port, a) \
do { \
cerr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << ": sensor port: " << s_port << " "; \
a; \
} while (0)
#else
#else
#define D(a)
#define D(a)
#endif
#endif
...
@@ -45,15 +50,16 @@ RTP_Stream::RTP_Stream(void) {
...
@@ -45,15 +50,16 @@ RTP_Stream::RTP_Stream(void) {
rtcp_socket
=
NULL
;
rtcp_socket
=
NULL
;
sem_init
(
&
sem_play
,
0
,
0
);
sem_init
(
&
sem_play
,
0
,
0
);
pth_id
=
-
1
;
pth_id
=
-
1
;
packet_num
=
0
;
}
}
RTP_Stream
::~
RTP_Stream
()
{
RTP_Stream
::~
RTP_Stream
()
{
//cerr << "RTP_Stream::~RTP_Stream() for stream " << stream_name << endl;
//cerr << "RTP_Stream::~RTP_Stream() for stream " << stream_name << endl;
if
(
pth_id
>=
0
)
if
(
pth_id
>=
0
)
pthread_cancel
(
pth
);
pthread_cancel
(
pth
);
if
(
rtp_socket
!=
NULL
)
if
(
rtp_socket
!=
NULL
)
delete
rtp_socket
;
delete
rtp_socket
;
if
(
rtcp_socket
!=
NULL
)
if
(
rtcp_socket
!=
NULL
)
delete
rtcp_socket
;
delete
rtcp_socket
;
sem_destroy
(
&
sem_play
);
sem_destroy
(
&
sem_play
);
pthread_mutex_destroy
(
&
pthm_flow
);
pthread_mutex_destroy
(
&
pthm_flow
);
...
@@ -72,9 +78,9 @@ void *RTP_Stream::pthread_f(void *_this) {
...
@@ -72,9 +78,9 @@ void *RTP_Stream::pthread_f(void *_this) {
}
}
void
RTP_Stream
::
Start
(
string
ip
,
int
port
,
int
ttl
)
{
void
RTP_Stream
::
Start
(
string
ip
,
int
port
,
int
ttl
)
{
D
(
cerr
<<
" new "
<<
stream_name
<<
" UDP socket at port: "
<<
port
<<
endl
;)
D
(
sensor_port
,
cerr
<<
" new "
<<
stream_name
<<
" UDP socket at port: "
<<
port
<<
endl
);
pthread_mutex_lock
(
&
pthm_flow
);
pthread_mutex_lock
(
&
pthm_flow
);
if
(
!
_play
)
{
if
(
!
_play
)
{
rtp_socket
=
new
Socket
(
ip
,
port
,
Socket
::
TYPE_UDP
,
ttl
);
rtp_socket
=
new
Socket
(
ip
,
port
,
Socket
::
TYPE_UDP
,
ttl
);
rtcp_socket
=
new
Socket
(
ip
,
port
+
1
,
Socket
::
TYPE_UDP
,
ttl
);
rtcp_socket
=
new
Socket
(
ip
,
port
+
1
,
Socket
::
TYPE_UDP
,
ttl
);
rtp_packets
=
0
;
rtp_packets
=
0
;
...
@@ -92,20 +98,20 @@ D( cerr << " new " << stream_name << " UDP socket at port: " << port << endl;)
...
@@ -92,20 +98,20 @@ D( cerr << " new " << stream_name << " UDP socket at port: " << port << endl;)
}
}
void
RTP_Stream
::
Stop
(
void
)
{
void
RTP_Stream
::
Stop
(
void
)
{
D
(
cerr
<<
__FILE__
<<
":"
<<
__FUNCTION__
<<
":"
<<
__LINE__
<<
endl
;)
D
(
sensor_port
,
cerr
<<
__FILE__
<<
":"
<<
__FUNCTION__
<<
":"
<<
__LINE__
<<
endl
);
//cerr << "RTP_Stream::Stop() for stream " << stream_name << " - begin" << endl;
//cerr << "RTP_Stream::Stop() for stream " << stream_name << " - begin" << endl;
pthread_mutex_lock
(
&
pthm_flow
);
pthread_mutex_lock
(
&
pthm_flow
);
if
(
_play
)
{
if
(
_play
)
{
//cerr << "RTP_Stream::Stop() for stream " << stream_name << " - in progress" << endl;
//cerr << "RTP_Stream::Stop() for stream " << stream_name << " - in progress" << endl;
/// reset semaphore
/// reset semaphore
sem_init
(
&
sem_play
,
0
,
0
);
sem_init
(
&
sem_play
,
0
,
0
);
_play
=
false
;
_play
=
false
;
// delete rtcp_socket;
// delete rtcp_socket;
if
(
rtp_socket
!=
NULL
)
{
if
(
rtp_socket
!=
NULL
)
{
delete
rtp_socket
;
delete
rtp_socket
;
rtp_socket
=
NULL
;
rtp_socket
=
NULL
;
}
}
if
(
rtcp_socket
!=
NULL
)
{
if
(
rtcp_socket
!=
NULL
)
{
delete
rtcp_socket
;
delete
rtcp_socket
;
rtcp_socket
=
NULL
;
rtcp_socket
=
NULL
;
}
}
...
@@ -124,17 +130,17 @@ D( cerr << __FILE__<< ":"<< __FUNCTION__ << ":" <<__LINE__ <<endl;)
...
@@ -124,17 +130,17 @@ D( cerr << __FILE__<< ":"<< __FUNCTION__ << ":" <<__LINE__ <<endl;)
* @return never
* @return never
*/
*/
void
*
RTP_Stream
::
thread
(
void
)
{
void
*
RTP_Stream
::
thread
(
void
)
{
D
(
cerr
<<
"RTP_Stream::thread(void)"
<<
endl
;)
D
(
sensor_port
,
cerr
<<
"RTP_Stream::thread(void)"
<<
endl
);
for
(;;)
{
for
(;;)
{
pthread_mutex_lock
(
&
pthm_flow
);
pthread_mutex_lock
(
&
pthm_flow
);
if
(
_play
)
{
if
(
_play
)
{
long
f
=
process
();
long
f
=
process
();
if
(
f
>
0
)
if
(
f
>
0
)
rtcp
();
rtcp
();
// process() and rtcp() use sockets
// process() and rtcp() use sockets
pthread_mutex_unlock
(
&
pthm_flow
);
pthread_mutex_unlock
(
&
pthm_flow
);
if
(
f
<
0
)
{
if
(
f
<
0
)
{
D
(
cerr
<<
__FILE__
<<
":"
<<
__FUNCTION__
<<
":"
<<
__LINE__
<<
"process exception detected: "
<<
f
<<
endl
;)
D
(
sensor_port
,
cerr
<<
__FILE__
<<
":"
<<
__FUNCTION__
<<
":"
<<
__LINE__
<<
"process exception detected: "
<<
f
<<
endl
);
// cerr << "Stop() from thread for stream " << stream_name << endl;
// cerr << "Stop() from thread for stream " << stream_name << endl;
Stop
();
Stop
();
}
}
...
@@ -148,14 +154,14 @@ D( cerr << __FILE__<< ":"<< __FUNCTION__ << ":" <<__LINE__<< "process excepti
...
@@ -148,14 +154,14 @@ D( cerr << __FILE__<< ":"<< __FUNCTION__ << ":" <<__LINE__<< "process excepti
void
RTP_Stream
::
rtcp
(
void
)
{
void
RTP_Stream
::
rtcp
(
void
)
{
// check time for next one RTCP...
// check time for next one RTCP...
if
(
f_tv
.
tv_sec
==
0
&&
f_tv
.
tv_usec
==
0
)
if
(
f_tv
.
tv_sec
==
0
&&
f_tv
.
tv_usec
==
0
)
return
;
return
;
long
td
=
time_delta_us
(
f_tv
,
rtcp_tv
);
long
td
=
time_delta_us
(
f_tv
,
rtcp_tv
);
if
(
td
<
0
)
{
if
(
td
<
0
)
{
rtcp_tv
=
f_tv
;
rtcp_tv
=
f_tv
;
return
;
return
;
}
}
if
(
td
<
rtcp_delay
)
if
(
td
<
rtcp_delay
)
return
;
return
;
rtcp_tv
=
f_tv
;
rtcp_tv
=
f_tv
;
rtcp_send_sdes
();
rtcp_send_sdes
();
...
@@ -172,27 +178,27 @@ void RTP_Stream::rtcp_send_sr(void) {
...
@@ -172,27 +178,27 @@ void RTP_Stream::rtcp_send_sr(void) {
packet
[
0
]
=
0x81
;
packet
[
0
]
=
0x81
;
packet
[
1
]
=
200
;
// SR
packet
[
1
]
=
200
;
// SR
us
=
htons
(((
packet_len
)
/
4
)
-
1
);
us
=
htons
(((
packet_len
)
/
4
)
-
1
);
memcpy
((
void
*
)
&
packet
[
2
],
(
void
*
)
&
us
,
2
);
memcpy
((
void
*
)
&
packet
[
2
],
(
void
*
)
&
us
,
2
);
memcpy
((
void
*
)
&
packet
[
4
],
(
void
*
)
&
SSRC
,
4
);
memcpy
((
void
*
)
&
packet
[
4
],
(
void
*
)
&
SSRC
,
4
);
// NTP timestamp is a fixed point 32.32 format time
// NTP timestamp is a fixed point 32.32 format time
ul
=
htonl
(
f_tv
.
tv_sec
);
ul
=
htonl
(
f_tv
.
tv_sec
);
memcpy
((
void
*
)
&
packet
[
8
],
(
void
*
)
&
ul
,
4
);
memcpy
((
void
*
)
&
packet
[
8
],
(
void
*
)
&
ul
,
4
);
double
d
=
f_tv
.
tv_usec
;
double
d
=
f_tv
.
tv_usec
;
d
/=
1000000.0
;
d
/=
1000000.0
;
d
*=
65536.0
;
d
*=
65536.0
;
d
*=
4096.0
;
d
*=
4096.0
;
uint32_t
f
=
(
uint32_t
)
d
;
uint32_t
f
=
(
uint32_t
)
d
;
if
(
f
>
0x0FFFFFFF
)
if
(
f
>
0x0FFFFFFF
)
f
=
0x0FFFFFFF
;
f
=
0x0FFFFFFF
;
f
<<=
4
;
f
<<=
4
;
ul
=
htonl
(
f
);
ul
=
htonl
(
f
);
memcpy
((
void
*
)
&
packet
[
12
],
(
void
*
)
&
ul
,
4
);
memcpy
((
void
*
)
&
packet
[
12
],
(
void
*
)
&
ul
,
4
);
ul
=
htonl
(
timestamp
);
ul
=
htonl
(
timestamp
);
memcpy
((
void
*
)
&
packet
[
16
],
(
void
*
)
&
ul
,
4
);
memcpy
((
void
*
)
&
packet
[
16
],
(
void
*
)
&
ul
,
4
);
ul
=
htonl
(
rtp_packets
);
ul
=
htonl
(
rtp_packets
);
memcpy
((
void
*
)
&
packet
[
20
],
(
void
*
)
&
ul
,
4
);
memcpy
((
void
*
)
&
packet
[
20
],
(
void
*
)
&
ul
,
4
);
ul
=
htonl
(
rtp_octets
);
ul
=
htonl
(
rtp_octets
);
memcpy
((
void
*
)
&
packet
[
24
],
(
void
*
)
&
ul
,
4
);
memcpy
((
void
*
)
&
packet
[
24
],
(
void
*
)
&
ul
,
4
);
rtcp_socket
->
send
(
packet
,
packet_len
);
rtcp_socket
->
send
(
packet
,
packet_len
);
}
}
...
@@ -200,33 +206,33 @@ void RTP_Stream::rtcp_send_sdes(void) {
...
@@ -200,33 +206,33 @@ void RTP_Stream::rtcp_send_sdes(void) {
char
packet
[
8
+
4
+
128
];
// by RTP RFC 3550, for SDES RTCP packet needed 8 + 4 + ... bytes,
char
packet
[
8
+
4
+
128
];
// by RTP RFC 3550, for SDES RTCP packet needed 8 + 4 + ... bytes,
// so get additional 128 bytes for 126 CNAME field
// so get additional 128 bytes for 126 CNAME field
int
packet_len
=
0
;
int
packet_len
=
0
;
int
padding
=
0
;
int
padding
=
0
;
uint16_t
us
;
uint16_t
us
;
const
char
*
cname
=
CNAME
;
const
char
*
cname
=
CNAME
;
int
cname_len
=
strlen
(
cname
);
int
cname_len
=
strlen
(
cname
);
bzero
((
void
*
)
packet
,
140
);
//8+4+128
bzero
((
void
*
)
packet
,
140
);
//8+4+128
// RTCP header
// RTCP header
packet
[
0
]
=
0x81
;
packet
[
0
]
=
0x81
;
packet
[
1
]
=
202
;
packet
[
1
]
=
202
;
memcpy
((
void
*
)
&
packet
[
4
],
(
void
*
)
&
SSRC
,
4
);
memcpy
((
void
*
)
&
packet
[
4
],
(
void
*
)
&
SSRC
,
4
);
packet_len
+=
8
;
packet_len
+=
8
;
// SDES fields
// SDES fields
packet
[
8
]
=
0x01
;
packet
[
8
]
=
0x01
;
memcpy
((
void
*
)
&
packet
[
10
],
(
void
*
)
cname
,
cname_len
);
memcpy
((
void
*
)
&
packet
[
10
],
(
void
*
)
cname
,
cname_len
);
packet_len
+=
2
;
// + cname_len;
packet_len
+=
2
;
// + cname_len;
// calculate common length SDES
// calculate common length SDES
padding
=
(
cname_len
+
2
)
%
4
;
padding
=
(
cname_len
+
2
)
%
4
;
if
(
padding
)
if
(
padding
)
cname_len
+=
(
4
-
padding
);
cname_len
+=
(
4
-
padding
);
packet
[
9
]
=
cname_len
;
packet
[
9
]
=
cname_len
;
// each chunk MUST be terminated by one or more null octets(RFC3350)
// each chunk MUST be terminated by one or more null octets(RFC3350)
packet_len
+=
(
cname_len
+
4
);
packet_len
+=
(
cname_len
+
4
);
us
=
htons
((
packet_len
/
4
)
-
1
);
us
=
htons
((
packet_len
/
4
)
-
1
);
memcpy
((
void
*
)
&
packet
[
2
],
(
void
*
)
&
us
,
2
);
memcpy
((
void
*
)
&
packet
[
2
],
(
void
*
)
&
us
,
2
);
rtcp_socket
->
send
(
packet
,
packet_len
);
rtcp_socket
->
send
(
packet
,
packet_len
);
}
}
src/video.cpp
View file @
d8ae21c5
...
@@ -32,6 +32,7 @@
...
@@ -32,6 +32,7 @@
#include <sstream>
#include <sstream>
#include <string>
#include <string>
#include <elphel/x393_devices.h>
#include <elphel/x393_devices.h>
#include <iomanip>
#include "streamer.h"
#include "streamer.h"
...
@@ -74,6 +75,15 @@ using namespace std;
...
@@ -74,6 +75,15 @@ using namespace std;
#define D3(a)
#define D3(a)
#endif
#endif
#ifdef VIDEO_DEBUG
#define D_FOLLOW(a) \
do { \
a; \
} while (0)
#else
#define D(a)
#endif
//Video *video = NULL;
//Video *video = NULL;
#define QTABLES_INCLUDE
#define QTABLES_INCLUDE
...
@@ -87,7 +97,7 @@ using namespace std;
...
@@ -87,7 +97,7 @@ using namespace std;
//int fd_circbuf = 0;
//int fd_circbuf = 0;
//int fd_jpeghead = 0; /// to get quantization tables
//int fd_jpeghead = 0; /// to get quantization tables
//int fd_fparmsall = 0;
//int fd_fparmsall = 0;
int
lastDaemonBit
=
DAEMON_BIT_STREAMER
;
//
int lastDaemonBit = DAEMON_BIT_STREAMER;
//struct framepars_all_t *frameParsAll;
//struct framepars_all_t *frameParsAll;
//struct framepars_t *framePars;
//struct framepars_t *framePars;
...
@@ -124,6 +134,7 @@ Video::Video(int port, Parameters *pars) {
...
@@ -124,6 +134,7 @@ Video::Video(int port, Parameters *pars) {
err_msg
=
"can't mmap "
+
*
circbuf_file_names
[
sensor_port
];
err_msg
=
"can't mmap "
+
*
circbuf_file_names
[
sensor_port
];
throw
runtime_error
(
err_msg
);
throw
runtime_error
(
err_msg
);
}
}
buffer_ptr_end
=
(
unsigned
char
*
)(
buffer_ptr
+
BYTE2DW
(
buffer_length
));
/// Skip several frames if it is just booted
/// Skip several frames if it is just booted
/// May get stuck here if compressor is off, it should be enabled externally
/// May get stuck here if compressor is off, it should be enabled externally
...
@@ -453,10 +464,13 @@ long Video::capture(void) {
...
@@ -453,10 +464,13 @@ long Video::capture(void) {
frame_ptr
=
(
char
*
)
((
unsigned
long
)
buffer_ptr
+
latestAvailableFrame_ptr
);
frame_ptr
=
(
char
*
)
((
unsigned
long
)
buffer_ptr
+
latestAvailableFrame_ptr
);
frame_len
=
get_frame_len
(
latestAvailableFrame_ptr
);
frame_len
=
get_frame_len
(
latestAvailableFrame_ptr
);
D3
(
sensor_port
,
cerr
<<
"Frame
length "
<<
frame_len
<<
endl
);
D3
(
sensor_port
,
cerr
<<
"Frame
start byte index: "
<<
frameStartByteIndex
<<
", Frame length "
<<
frame_len
);
// read time stamp
// read time stamp
char
*
ts_ptr
=
(
char
*
)
((
unsigned
long
)
frame_ptr
+
(
long
)
(((
frame_len
+
CCAM_MMAP_META
+
3
)
&
(
~
0x1f
))
+
32
-
CCAM_MMAP_META_SEC
));
unsigned
char
*
ts_ptr
=
(
unsigned
char
*
)
((
unsigned
long
)
frame_ptr
+
(
long
)
(((
frame_len
+
CCAM_MMAP_META
+
3
)
&
(
~
0x1f
))
+
32
-
CCAM_MMAP_META_SEC
));
if
(
ts_ptr
>=
buffer_ptr_end
)
{
ts_ptr
-=
buffer_length
;
}
unsigned
long
t
[
2
];
unsigned
long
t
[
2
];
memcpy
(
&
t
,
(
void
*
)
ts_ptr
,
8
);
memcpy
(
&
t
,
(
void
*
)
ts_ptr
,
8
);
f_tv
.
tv_sec
=
t
[
0
];
f_tv
.
tv_sec
=
t
[
0
];
...
@@ -465,7 +479,7 @@ long Video::capture(void) {
...
@@ -465,7 +479,7 @@ long Video::capture(void) {
struct
interframe_params_t
curr_frame_params
;
struct
interframe_params_t
curr_frame_params
;
struct
interframe_params_t
*
fp
=
&
curr_frame_params
;
struct
interframe_params_t
*
fp
=
&
curr_frame_params
;
get_frame_pars
(
fp
,
latestAvailableFrame_ptr
);
get_frame_pars
(
fp
,
latestAvailableFrame_ptr
);
D
3
(
sensor_port
,
cerr
<<
"
frame_pars->signffff "
<<
fp
->
signffff
<<
endl
);
D
_FOLLOW
(
cerr
<<
",
frame_pars->signffff "
<<
fp
->
signffff
<<
endl
);
// See if the frame parameters are the same as were used when starting the stream,
// See if the frame parameters are the same as were used when starting the stream,
// otherwise check for up to G_SKIP_DIFF_FRAME older frames and return them instead.
// otherwise check for up to G_SKIP_DIFF_FRAME older frames and return them instead.
...
@@ -473,6 +487,14 @@ long Video::capture(void) {
...
@@ -473,6 +487,14 @@ long Video::capture(void) {
// Each time the latest acquired frame is considered, so we do not need to save frame pointer additionally
// Each time the latest acquired frame is considered, so we do not need to save frame pointer additionally
if
((
fp
->
width
!=
used_width
)
||
(
fp
->
height
!=
used_height
))
{
if
((
fp
->
width
!=
used_width
)
||
(
fp
->
height
!=
used_height
))
{
D3
(
sensor_port
,
cerr
<<
"Looks like frame size changed, new params: h = "
<<
fp
->
height
<<
", w = "
<<
fp
->
width
<<
endl
);
D3
(
sensor_port
,
cerr
<<
"Looks like frame size changed, new params: h = "
<<
fp
->
height
<<
", w = "
<<
fp
->
width
<<
endl
);
D3
(
sensor_port
,
cerr
<<
"shoud be h = "
<<
used_height
<<
", w = "
<<
used_width
<<
endl
);
D3
(
sensor_port
,
cerr
<<
"latestAvailableFrame_ptr: "
<<
latestAvailableFrame_ptr
<<
endl
);
D3
(
sensor_port
,
cerr
<<
"Interframe params:"
<<
endl
);
unsigned
int
*
iframe_data
=
(
unsigned
int
*
)
fp
;
for
(
size_t
j
=
0
;
j
<
sizeof
(
struct
interframe_params_t
)
/
4
;
j
++
)
cerr
<<
setfill
(
'0'
)
<<
setw
(
2
)
<<
"0x"
<<
hex
<<
iframe_data
[
j
]
<<
" "
;
cerr
<<
dec
<<
endl
;
for
(
before
=
1
;
before
<=
(
int
)
params
->
getGPValue
(
G_SKIP_DIFF_FRAME
);
before
++
)
{
for
(
before
=
1
;
before
<=
(
int
)
params
->
getGPValue
(
G_SKIP_DIFF_FRAME
);
before
++
)
{
if
(((
frameStartByteIndex
=
getFramePars
(
&
frame_pars
,
before
)))
if
(((
frameStartByteIndex
=
getFramePars
(
&
frame_pars
,
before
)))
&&
(
frame_pars
.
width
==
used_width
)
&&
(
frame_pars
.
height
==
used_height
))
{
&&
(
frame_pars
.
width
==
used_width
)
&&
(
frame_pars
.
height
==
used_height
))
{
...
@@ -570,10 +592,9 @@ long Video::process(void) {
...
@@ -570,10 +592,9 @@ long Video::process(void) {
uint32_t
ts
;
uint32_t
ts
;
ts
=
timestamp
;
ts
=
timestamp
;
ts
=
htonl
(
ts
);
ts
=
htonl
(
ts
);
D
(
sensor_port
,
cerr
<<
"This frame's time stamp: "
<<
timestamp
<<
endl
);
long
offset
=
0
;
long
offset
=
0
;
void
*
v_ptr
[
4
];
int
v_len
[
4
]
=
{
0
,
0
,
0
,
0
};
struct
iovec
iov
[
4
];
struct
iovec
iov
[
4
];
int
vect_num
;
int
vect_num
;
bool
first
=
true
;
bool
first
=
true
;
...
@@ -639,7 +660,8 @@ long Video::process(void) {
...
@@ -639,7 +660,8 @@ long Video::process(void) {
}
else
{
}
else
{
iov
[
vect_num
++
].
iov_len
=
20
;
iov
[
vect_num
++
].
iov_len
=
20
;
}
}
if
((
data
+
packet_len
)
<=
(
unsigned
char
*
)(
buffer_ptr
+
BYTE2DW
(
buffer_length
)))
{
// if ((data + packet_len) <= (unsigned char *)(buffer_ptr + BYTE2DW(buffer_length))) {
if
((
data
+
packet_len
)
<=
buffer_ptr_end
)
{
iov
[
vect_num
].
iov_base
=
data
;
iov
[
vect_num
].
iov_base
=
data
;
iov
[
vect_num
++
].
iov_len
=
packet_len
;
iov
[
vect_num
++
].
iov_len
=
packet_len
;
data
+=
packet_len
;
data
+=
packet_len
;
...
...
src/video.h
View file @
d8ae21c5
...
@@ -77,9 +77,11 @@ protected:
...
@@ -77,9 +77,11 @@ protected:
// struct timeval f_tv;
// struct timeval f_tv;
long
buffer_length
;
long
buffer_length
;
unsigned
long
*
buffer_ptr
;
unsigned
long
*
buffer_ptr
;
unsigned
char
*
buffer_ptr_end
;
// pointer to the end of the buffer
void
*
frame_ptr
;
void
*
frame_ptr
;
int
fd_circbuf
;
int
fd_circbuf
;
int
fd_jpeghead
;
int
fd_jpeghead
;
int
lastDaemonBit
;
long
capture
(
void
);
long
capture
(
void
);
// bool process(void);
// bool process(void);
...
...
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