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avcodec: Make init-threadsafety the default

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and remove FF_CODEC_CAP_INIT_THREADSAFE
All our native codecs are already init-threadsafe
(only wrappers for external libraries and hwaccels
are typically not marked as init-threadsafe yet),
so it is only natural for this to also be the default state.

Reviewed-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt
2022-07-10 00:05:45 +02:00
parent 6aad1204cc
commit 21b23ceab3
407 changed files with 243 additions and 572 deletions
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7
libavcodec/codec_internal.h
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@@ -24,18 +24,13 @@
#include "libavutil/attributes.h"
#include "codec.h"
/**
* The codec does not modify any global variables in the init function,
* allowing to call the init function without locking any global mutexes.
*/
#define FF_CODEC_CAP_INIT_THREADSAFE (1 << 0)
/**
* The codec is not known to be init-threadsafe (i.e. it might be unsafe
* to initialize this codec and another codec concurrently, typically because
* the codec calls external APIs that are not known to be thread-safe).
* Therefore calling the codec's init function needs to be guarded with a lock.
*/
#define FF_CODEC_CAP_NOT_INIT_THREADSAFE (1 << 9)
#define FF_CODEC_CAP_NOT_INIT_THREADSAFE (1 << 0)
/**
* The codec allows calling the close function for deallocation even if
* the init function returned a failure. Without this capability flag, a