Matthieu Bouron:
> This will allow users to pass the Android ApplicationContext which is
> mandatory
> to retrieve the ContentResolver responsible to resolve/open Android
> content-uri.
> ---
> libavutil/jni.c | 28 ++++++++++++++++++++++++++++
> libavutil/jni.h | 17 +++++++++++++++++
> 2 files changed, 45 insertions(+)
>
> diff --git a/libavutil/jni.c b/libavutil/jni.c
> index 541747cb20..d6f96717b0 100644
> --- a/libavutil/jni.c
> +++ b/libavutil/jni.c
> @@ -34,6 +34,7 @@
> #include "libavutil/jni.h"
>
> static void *java_vm;
> +static void *android_app_ctx;
> static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
>
> int av_jni_set_jvm(void *vm, void *log_ctx)
> @@ -63,6 +64,24 @@ void *av_jni_get_jvm(void *log_ctx)
> return vm;
> }
>
> +void av_jni_set_android_app_ctx(void *app_ctx)
> +{
> + pthread_mutex_lock(&lock);
> + android_app_ctx = app_ctx;
> + pthread_mutex_unlock(&lock);
> +}
> +
> +void *av_jni_get_android_app_ctx(void)
> +{
> + void *ctx;
> +
> + pthread_mutex_lock(&lock);
> + ctx = android_app_ctx;
> + pthread_mutex_unlock(&lock);
> +
> + return ctx;
> +}
> +
> #else
>
> int av_jni_set_java_vm(void *vm, void *log_ctx)
> @@ -75,4 +94,13 @@ void *av_jni_get_java_vm(void *log_ctx)
> return NULL;
> }
>
> +void av_jni_set_android_app_ctx(void *app_ctx)
> +{
> +}
> +
> +void *av_jni_get_android_app_ctx(void)
> +{
> + return NULL;
> +}
> +
> #endif
> diff --git a/libavutil/jni.h b/libavutil/jni.h
> index 700960dbb8..630f4074a1 100644
> --- a/libavutil/jni.h
> +++ b/libavutil/jni.h
> @@ -43,4 +43,21 @@ int av_jni_set_jvm(void *vm, void *log_ctx);
> */
> void *av_jni_get_jvm(void *log_ctx);
>
> +/*
> + * Set the Android application context which will be used to retrieve the
> Android
> + * content resolver to resolve content uris.
> + *
> + * @param app_ctx global JNI reference to the Android application context
> + */
> +void av_jni_set_android_app_ctx(void *app_ctx);
> +
> +/*
> + * Get the Android application context that has been set with
> + * av_jni_set_android_app_ctx.
> + *
> + * @return a pointer the the Android application context
> + */
> +void *av_jni_get_android_app_ctx(void);
> +
> +
> #endif /* AVUTIL_JNI_H */
This adds global state in order to pass the application context to your
protocol (in lieu of an option to pass pointers to a protocol). Can
there be scenarios in which multiple application contexts are useful in
the same process?
- Andreas
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