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