summaryrefslogtreecommitdiffstats
path: root/libavcodec/jni.c
blob: 32456f59fbbe56256afb88909ec02f77bb704a3b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
/*
 * 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 <stdlib.h>

#include "config.h"
#include "jni.h"

#if CONFIG_JNI

#include <errno.h>
#include <jni.h>
#include <pthread.h>

#include "libavutil/log.h"
#include "libavutil/error.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 0;
}

void *av_jni_get_java_vm(void *log_ctx)
{
    return NULL;
}

#endif
OpenPOWER on IntegriCloud