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			79 lines
		
	
	
	
		
			1.8 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			79 lines
		
	
	
	
		
			1.8 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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| 
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| #include "config.h"
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| 
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| #include <stdlib.h>
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| 
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| #include "libavutil/error.h"
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| #include "jni.h"
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| 
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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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| 
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| #include "libavutil/log.h"
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| #include "ffjni.h"
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| 
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| void *java_vm;
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| pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
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| 
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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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| 
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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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| 
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|     return ret;
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| }
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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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| 
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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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| 
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|     return vm;
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| }
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| 
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| #else
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| 
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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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| 
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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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| 
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| #endif
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