FFmpeg  4.0
mediacodec_surface.c
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1 /*
2  * Android MediaCodec Surface functions
3  *
4  * Copyright (c) 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 <jni.h>
24 
25 #include "ffjni.h"
26 #include "mediacodec_surface.h"
27 
28 void *ff_mediacodec_surface_ref(void *surface, void *log_ctx)
29 {
30  JNIEnv *env = NULL;
31 
32  void *reference = NULL;
33 
34  env = ff_jni_get_env(log_ctx);
35  if (!env) {
36  return NULL;
37  }
38 
39  reference = (*env)->NewGlobalRef(env, surface);
40 
41  return reference;
42 }
43 
44 int ff_mediacodec_surface_unref(void *surface, void *log_ctx)
45 {
46  JNIEnv *env = NULL;
47 
48  env = ff_jni_get_env(log_ctx);
49  if (!env) {
50  return AVERROR_EXTERNAL;
51  }
52 
53  (*env)->DeleteGlobalRef(env, surface);
54 
55  return 0;
56 }
#define NULL
Definition: coverity.c:32
void * ff_mediacodec_surface_ref(void *surface, void *log_ctx)
int ff_mediacodec_surface_unref(void *surface, void *log_ctx)
JNIEnv * ff_jni_get_env(void *log_ctx)
Definition: ffjni.c:51
#define AVERROR_EXTERNAL
Generic error in an external library.
Definition: error.h:57