/*
  * 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 AVFILTER_AVCODEC_H
 #define AVFILTER_AVCODEC_H
 
 /**
  * @file
  * libavcodec/libavfilter gluing utilities
  *
  * This should be included in an application ONLY if the installed
  * libavfilter has been compiled with libavcodec support, otherwise
  * symbols defined below will not be available.
  */
 
 #include "libavcodec/avcodec.h" // AVFrame
 #include "avfilter.h"

 #include "vsrc_buffer.h"

 
 /**
  * Copy the frame properties of src to dst, without copying the actual
  * image data.
  */
 void avfilter_copy_frame_props(AVFilterBufferRef *dst, const AVFrame *src);
 

 /**
  * Create and return a picref reference from the data and properties
  * contained in frame.
  *
  * @param perms permissions to assign to the new buffer reference
  */
 AVFilterBufferRef *avfilter_get_video_buffer_ref_from_frame(const AVFrame *frame, int perms);
 

 /**

  * Fill an AVFrame with the information stored in picref.
  *
  * @param frame an already allocated AVFrame
  * @param picref a video buffer reference
  * @return 0 in case of success, a negative AVERROR code in case of
  * failure
  */
 int avfilter_fill_frame_from_video_buffer_ref(AVFrame *frame,
                                               const AVFilterBufferRef *picref);
 
 /**

  * Add frame data to buffer_src.
  *
  * @param buffer_src pointer to a buffer source context

  * @param flags a combination of AV_VSRC_BUF_FLAG_* flags

  * @return >= 0 in case of success, a negative AVERROR code in case of
  * failure
  */

 int av_vsrc_buffer_add_frame(AVFilterContext *buffer_src,
                              const AVFrame *frame, int flags);

 #endif /* AVFILTER_AVCODEC_H */