/*
  * Copyright (c) 2008 Reimar Döffinger
  *
  * 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
  */
 

 #include "libavutil/common.h"

 #include "libavutil/intreadwrite.h"

 #include "avcodec.h"
 
 
 static int text2movsub(AVBitStreamFilterContext *bsfc, AVCodecContext *avctx, const char *args,
                      uint8_t **poutbuf, int *poutbuf_size,
                      const uint8_t *buf, int buf_size, int keyframe){
     if (buf_size > 0xffff) return 0;
     *poutbuf_size = buf_size + 2;
     *poutbuf = av_malloc(*poutbuf_size + FF_INPUT_BUFFER_PADDING_SIZE);
     AV_WB16(*poutbuf, buf_size);
     memcpy(*poutbuf + 2, buf, buf_size);
     return 1;
 }
 

 AVBitStreamFilter ff_text2movsub_bsf={

     "text2movsub",
     0,
     text2movsub,
 };
 
 static int mov2textsub(AVBitStreamFilterContext *bsfc, AVCodecContext *avctx, const char *args,
                      uint8_t **poutbuf, int *poutbuf_size,
                      const uint8_t *buf, int buf_size, int keyframe){
     if (buf_size < 2) return 0;
     *poutbuf_size = FFMIN(buf_size - 2, AV_RB16(buf));
     *poutbuf = av_malloc(*poutbuf_size + FF_INPUT_BUFFER_PADDING_SIZE);
     memcpy(*poutbuf, buf + 2, *poutbuf_size);
     return 1;
 }
 

 AVBitStreamFilter ff_mov2textsub_bsf={

     "mov2textsub",
     0,
     mov2textsub,
 };