Skip to content
Projects
Groups
Snippets
Help
Loading...
Help
Submit feedback
Contribute to GitLab
Sign in
Toggle navigation
A
audiowmark
Project
Project
Details
Activity
Releases
Cycle Analytics
Repository
Repository
Files
Commits
Branches
Tags
Contributors
Graph
Compare
Charts
Issues
0
Issues
0
List
Board
Labels
Milestones
Merge Requests
0
Merge Requests
0
CI / CD
CI / CD
Pipelines
Jobs
Schedules
Charts
Wiki
Wiki
Members
Members
Collapse sidebar
Close sidebar
Activity
Graph
Charts
Create a new issue
Jobs
Commits
Issue Boards
Open sidebar
Stefan Westerfeld
audiowmark
Commits
ca63bc2f
Commit
ca63bc2f
authored
Apr 27, 2020
by
Stefan Westerfeld
Browse files
Options
Browse Files
Download
Email Patches
Plain Diff
Performance optimizations for mpegts reader.
Signed-off-by:
Stefan Westerfeld
<
stefan@space.twc.de
>
parent
e70cb62f
Changes
1
Hide whitespace changes
Inline
Side-by-side
Showing
1 changed file
with
21 additions
and
14 deletions
+21
-14
testmpegts.cc
src/testmpegts.cc
+21
-14
No files found.
src/testmpegts.cc
View file @
ca63bc2f
...
...
@@ -29,7 +29,7 @@ using std::regex;
class
TSPacket
{
std
::
array
<
unsigned
char
,
188
>
data
;
std
::
array
<
unsigned
char
,
188
>
m_
data
;
public
:
bool
...
...
@@ -37,13 +37,13 @@ public:
{
err
=
Error
::
Code
::
NONE
;
size_t
bytes_read
=
fread
(
data
.
data
(),
1
,
data
.
size
(),
file
);
size_t
bytes_read
=
fread
(
m_data
.
data
(),
1
,
m_
data
.
size
(),
file
);
if
(
bytes_read
==
0
)
/* probably eof */
return
false
;
if
(
bytes_read
==
data
.
size
())
/* successful read */
if
(
bytes_read
==
m_
data
.
size
())
/* successful read */
{
if
(
data
[
0
]
==
'G'
)
if
(
m_
data
[
0
]
==
'G'
)
return
true
;
err
=
Error
(
"bad packet sync while reading transport (.ts) packet"
);
...
...
@@ -56,8 +56,8 @@ public:
Error
write
(
FILE
*
file
)
{
size_t
bytes_written
=
fwrite
(
data
.
data
(),
1
,
data
.
size
(),
file
);
if
(
bytes_written
!=
data
.
size
())
size_t
bytes_written
=
fwrite
(
m_data
.
data
(),
1
,
m_
data
.
size
(),
file
);
if
(
bytes_written
!=
m_
data
.
size
())
return
Error
(
"short write while writing transport stream (.ts) packet"
);
return
Error
::
Code
::
NONE
;
...
...
@@ -66,14 +66,14 @@ public:
void
clear
(
Type
type
)
{
std
::
fill
(
data
.
begin
(),
data
.
end
(),
0
);
std
::
fill
(
m_data
.
begin
(),
m_
data
.
end
(),
0
);
auto
id
=
get_id_bytes
(
type
);
std
::
copy
(
id
.
begin
(),
id
.
end
(),
data
.
begin
());
std
::
copy
(
id
.
begin
(),
id
.
end
(),
m_
data
.
begin
());
}
unsigned
char
&
operator
[]
(
size_t
n
)
{
return
data
[
n
];
return
m_
data
[
n
];
}
bool
has_id
(
Type
type
)
...
...
@@ -81,7 +81,7 @@ public:
const
auto
idb
=
get_id_bytes
(
type
);
for
(
size_t
i
=
0
;
i
<
idb
.
size
();
i
++
)
{
if
(
idb
[
i
]
!=
data
[
i
])
if
(
idb
[
i
]
!=
m_
data
[
i
])
return
false
;
}
return
true
;
...
...
@@ -98,7 +98,12 @@ public:
constexpr
size_t
size
()
{
return
data
.
size
();
// is constant
return
m_data
.
size
();
// is constant
}
const
std
::
array
<
unsigned
char
,
188
>&
data
()
{
return
m_data
;
}
};
...
...
@@ -228,13 +233,15 @@ TSReader::load (const string& inname)
{
if
(
p
.
has_id
(
TSPacket
::
awmk_file
)
||
p
.
has_id
(
TSPacket
::
awmk_data
))
{
for
(
size_t
i
=
12
;
i
<
p
.
size
();
i
++
)
awmk_stream
.
push_back
(
p
[
i
]);
awmk_stream
.
insert
(
awmk_stream
.
end
(),
p
.
data
().
begin
()
+
12
,
p
.
data
().
end
());
if
(
!
header_valid
)
{
if
(
parse_header
(
header
,
awmk_stream
))
header_valid
=
true
;
{
awmk_stream
.
reserve
(
header
.
header_size
+
header
.
data_size
+
p
.
size
());
header_valid
=
true
;
}
}
// done? do we have enough bytes for the complete entry?
if
(
header_valid
&&
awmk_stream
.
size
()
>=
(
header
.
header_size
+
header
.
data_size
))
...
...
Write
Preview
Markdown
is supported
0%
Try again
or
attach a new file
Attach a file
Cancel
You are about to add
0
people
to the discussion. Proceed with caution.
Finish editing this message first!
Cancel
Please
register
or
sign in
to comment