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n2.5.11
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n2.3.2
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n2.2.12
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n2.1.1
n2.1
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n1.1.1
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n1.0
n0.11.5
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n0.8.15
n0.8.14
n0.8.13
n0.8.12
n0.8.11
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n0.7.15
n0.7.14
n0.7.13
n0.7.12
n0.7.11
n0.7.10
n0.7.9
n0.7.8
n0.7.7
n0.7.6
n0.7.5
n0.7.4
n0.7.3
n0.7.2
n0.7.1
n0.6.7
n0.6.6
n0.6.5
n0.6.4
ffmpeg-0.6.3
n0.5.15
n0.5.14
n0.5.13
n0.5.12
n0.5.11
n0.5.10
n0.5.9
n0.5.8
n0.5.7
n0.5.6
n0.5.5
N
8 Commits (d08db138e2109725ba2963f152b0a2b1fffded1b)
8 Commits (d08db138e2109725ba2963f152b0a2b1fffded1b)
| Author | SHA1 | Message | Date |
|---|---|---|---|
 Michael Niedermayer
|
0e216ed407 |
avutil/buffer_internal: leave the buffer pool entries volatile
Theres no reason to remove the volatile keyword in a release branch Signed-off-by: Michael Niedermayer <michaelni@gmx.at> |
11 years ago |
 wm4
|
517ce1d09b |
lavu: fix memory leaks by using a mutex instead of atomics
The buffer pool has to atomically add and remove entries from the linked
list of available buffers. This was done by removing the entire list
with a CAS operation, working on it, and then setting it back again
(using a retry-loop in case another thread was doing the same thing).
This could effectively cause memory leaks: while a thread was working on
the buffer list, other threads would allocate new buffers, increasing
the pool's total size. There was no real leak, but since these extra
buffers were not needed, but not free'd either (except when the buffer
pool was destroyed), this had the same effects as a real leak. For some
reason, growth was exponential, and could easily kill the process due
to OOM in real-world uses.
Fix this by using a mutex to protect the list operations. The fancy
way atomics remove the whole list to work on it is not needed anymore,
which also avoids the situation which was causing the leak.
Signed-off-by: Anton Khirnov <anton@khirnov.net>
(cherry picked from commit
|
11 years ago |
|
Michael Niedermayer
|
cea3a63ba3 |
avutil/buffer: Fix race in pool.
This race will always happen sooner or later in a multi-threaded environment and it will over time lead to OOM. This fix works by spinning, there are other ways by which this can be fixed, like simply detecting the issue after it happened and freeing the over-allocated memory or simply using a mutex. Signed-off-by: Michael Niedermayer <michaelni@gmx.at> |
13 years ago |
 Anton Khirnov
|
1cec0624d0 | AVBuffer: add a new API for buffer pools | 13 years ago |
|
Anton Khirnov
|
8e401dbe90 | lavu: add a new API for reference-counted data buffers. | 13 years ago |