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/*
* Android MediaCodec public API
*
* Copyright (c) 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
*/
#ifndef AVCODEC_MEDIACODEC_H
#define AVCODEC_MEDIACODEC_H
#include "libavcodec/avcodec.h"
/**
* This structure holds a reference to a android/view/Surface object that will
* be used as output by the decoder.
*
*/
typedef struct AVMediaCodecContext {
/**
* android/view/Surface object reference.
*/
void *surface;
} AVMediaCodecContext;
/**
* Allocate and initialize a MediaCodec context.
*
* When decoding with MediaCodec is finished, the caller must free the
* MediaCodec context with av_mediacodec_default_free.
*
* @return a pointer to a newly allocated AVMediaCodecContext on success, NULL otherwise
*/
AVMediaCodecContext *av_mediacodec_alloc_context(void);
/**
* Convenience function that sets up the MediaCodec context.
*
* @param avctx codec context
* @param ctx MediaCodec context to initialize
* @param surface reference to an android/view/Surface
* @return 0 on success, < 0 otherwise
*/
int av_mediacodec_default_init(AVCodecContext *avctx, AVMediaCodecContext *ctx, void *surface);
/**
* This function must be called to free the MediaCodec context initialized with
* av_mediacodec_default_init().
*
* @param avctx codec context
*/
void av_mediacodec_default_free(AVCodecContext *avctx);
/**
* Opaque structure representing a MediaCodec buffer to render.
*/
typedef struct MediaCodecBuffer AVMediaCodecBuffer;
/**
* Release a MediaCodec buffer and render it to the surface that is associated
* with the decoder. This function should only be called once on a given
* buffer, once released the underlying buffer returns to the codec, thus
* subsequent calls to this function will have no effect.
*
* @param buffer the buffer to render
* @param render 1 to release and render the buffer to the surface or 0 to
* discard the buffer
* @return 0 on success, < 0 otherwise
*/
int av_mediacodec_release_buffer(AVMediaCodecBuffer *buffer, int render);
#endif /* AVCODEC_MEDIACODEC_H */