text: /*
   * 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 */
  