| /* |
| * 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 |