FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/jni.c
Date: 2021-09-24 20:55:06
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1 /*
2 * JNI public API functions
3 *
4 * Copyright (c) 2015-2016 Matthieu Bouron <matthieu.bouron stupeflix.com>
5 *
6 * This file is part of FFmpeg.
7 *
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 */
22
23 #include "config.h"
24
25 #include <stdlib.h>
26
27 #include "libavutil/error.h"
28 #include "jni.h"
29
30 #if CONFIG_JNI
31 #include <jni.h>
32 #include <pthread.h>
33
34 #include "libavutil/log.h"
35 #include "ffjni.h"
36
37 void *java_vm;
38 pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
39
40 int av_jni_set_java_vm(void *vm, void *log_ctx)
41 {
42 int ret = 0;
43
44 pthread_mutex_lock(&lock);
45 if (java_vm == NULL) {
46 java_vm = vm;
47 } else if (java_vm != vm) {
48 ret = AVERROR(EINVAL);
49 av_log(log_ctx, AV_LOG_ERROR, "A Java virtual machine has already been set");
50 }
51 pthread_mutex_unlock(&lock);
52
53 return ret;
54 }
55
56 void *av_jni_get_java_vm(void *log_ctx)
57 {
58 void *vm;
59
60 pthread_mutex_lock(&lock);
61 vm = java_vm;
62 pthread_mutex_unlock(&lock);
63
64 return vm;
65 }
66
67 #else
68
69 int av_jni_set_java_vm(void *vm, void *log_ctx)
70 {
71 return AVERROR(ENOSYS);
72 }
73
74 void *av_jni_get_java_vm(void *log_ctx)
75 {
76 return NULL;
77 }
78
79 #endif
80