FFmpeg
libavcodec
mediacodec_surface.c
Go to the documentation of this file.
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/*
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* Android MediaCodec Surface functions
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*
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* Copyright (c) 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 <android/native_window.h>
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#include <
jni.h
>
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#include "
libavutil/mem.h
"
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#include "
ffjni.h
"
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#include "
mediacodec_surface.h
"
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FFANativeWindow
*
ff_mediacodec_surface_ref
(
void
*surface,
void
*native_window,
void
*log_ctx)
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{
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FFANativeWindow
*
ret
;
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ret
=
av_mallocz
(
sizeof
(*
ret
));
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if
(!
ret
)
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return
NULL
;
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if
(surface) {
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JNIEnv *env =
NULL
;
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env =
ff_jni_get_env
(log_ctx);
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if
(env)
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ret
->surface = (*env)->NewGlobalRef(env, surface);
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}
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if
(native_window) {
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ANativeWindow_acquire(native_window);
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ret
->native_window = native_window;
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}
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if
(!
ret
->surface && !
ret
->native_window) {
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av_log
(log_ctx,
AV_LOG_ERROR
,
"Both surface and native_window are NULL\n"
);
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av_freep
(&
ret
);
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}
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return
ret
;
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}
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int
ff_mediacodec_surface_unref
(
FFANativeWindow
*
window
,
void
*log_ctx)
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{
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if
(!
window
)
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return
0;
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if
(
window
->surface) {
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JNIEnv *env =
NULL
;
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env =
ff_jni_get_env
(log_ctx);
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if
(env)
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(*env)->DeleteGlobalRef(env,
window
->surface);
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}
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if
(
window
->native_window)
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ANativeWindow_release(
window
->native_window);
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av_free
(
window
);
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return
0;
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}
mediacodec_surface.h
window
static SDL_Window * window
Definition:
ffplay.c:361
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition:
log.h:209
NULL
#define NULL
Definition:
coverity.c:32
ff_mediacodec_surface_unref
int ff_mediacodec_surface_unref(FFANativeWindow *window, void *log_ctx)
Definition:
mediacodec_surface.c:59
FFANativeWindow
Definition:
mediacodec_surface.h:28
ffjni.h
av_mallocz
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
Definition:
mem.c:256
ff_mediacodec_surface_ref
FFANativeWindow * ff_mediacodec_surface_ref(void *surface, void *native_window, void *log_ctx)
Definition:
mediacodec_surface.c:30
ret
ret
Definition:
filter_design.txt:187
ff_jni_get_env
JNIEnv * ff_jni_get_env(void *log_ctx)
Definition:
ffjni.c:53
mem.h
av_free
#define av_free(p)
Definition:
tableprint_vlc.h:33
av_freep
#define av_freep(p)
Definition:
tableprint_vlc.h:34
av_log
#define av_log(a,...)
Definition:
tableprint_vlc.h:27
jni.h
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