/*
  * Chomp bitstream filter
  * Copyright (c) 2010 Alex Converse <alex.converse@gmail.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
  */
 
 #include "avcodec.h"
 #include "internal.h"
 
 static int chomp_filter(AVBitStreamFilterContext *bsfc,
                         AVCodecContext *avctx, const char *args,
                         uint8_t  **poutbuf, int *poutbuf_size,
                         const uint8_t *buf, int      buf_size,
                         int keyframe)
 {
     while (buf_size > 0 && !buf[buf_size-1])
         buf_size--;
 
     *poutbuf = (uint8_t*) buf;
     *poutbuf_size = buf_size;
 
     return 0;
 }
 
 /**

  * This filter removes a string of NULL bytes from the end of a packet.

  */

 AVBitStreamFilter ff_chomp_bsf = {

     "chomp",
     0,
     chomp_filter,
 };