/* * JNI public API functions * * Copyright (c) 2015-2016 Matthieu Bouron <matthieu.bouron stupeflix.com> * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include "config.h" #include <stdlib.h> #include "libavutil/error.h" #include "jni.h" #if CONFIG_JNI #include <jni.h> #include <pthread.h> #include "libavutil/log.h" #include "ffjni.h" void *java_vm; pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER; int av_jni_set_java_vm(void *vm, void *log_ctx) { int ret = 0; pthread_mutex_lock(&lock); if (java_vm == NULL) { java_vm = vm; } else if (java_vm != vm) { ret = AVERROR(EINVAL); av_log(log_ctx, AV_LOG_ERROR, "A Java virtual machine has already been set"); } pthread_mutex_unlock(&lock); return ret; } void *av_jni_get_java_vm(void *log_ctx) { void *vm; pthread_mutex_lock(&lock); vm = java_vm; pthread_mutex_unlock(&lock); return vm; } #else int av_jni_set_java_vm(void *vm, void *log_ctx) { return AVERROR(ENOSYS); } void *av_jni_get_java_vm(void *log_ctx) { return NULL; } #endif