FFmpeg

109897 Commits

37 Branches

400 Tags

484 MiB

Tag: Branch: Tree: c56f84e656

Commit Graph

Author	SHA1	Message	Date
Matthieu Bouron	376d8fb2c5	lavc/ffjni: replace ff_jni_{attach,detach} with ff_jni_get_env If a JNI environment is not already attached to the thread where the MediaCodec calls are made the current implementation will attach / detach an environment for each MediaCodec call wasting some CPU time. ff_jni_get_env replaces ff_jni_{attach,detach} by permanently attaching an environment (if it is not already the case) to the current thread. The environment will be automatically detached at the thread destruction using a pthread_key callback. Saves around 5% of CPU time (out of 20%) while decoding a stream with MediaCodec.	9 years ago
Matthieu Bouron	3ab178516e	lavc: add JNI support	9 years ago

Author

SHA1

Message

Date

Matthieu Bouron

376d8fb2c5

lavc/ffjni: replace ff_jni_{attach,detach} with ff_jni_get_env

If a JNI environment is not already attached to the thread where the
MediaCodec calls are made the current implementation will attach /
detach an environment for each MediaCodec call wasting some CPU time.

ff_jni_get_env replaces ff_jni_{attach,detach} by permanently attaching
an environment (if it is not already the case) to the current thread.
The environment will be automatically detached at the thread destruction
using a pthread_key callback.

Saves around 5% of CPU time (out of 20%) while decoding a stream with
MediaCodec.

9 years ago

Matthieu Bouron

3ab178516e

lavc: add JNI support

9 years ago

2 Commits (c56f84e656cda5463ee1cf747f8e469252ce42ce)