Subversion Repositories Kolibri OS

Rev

Go to most recent revision | Blame | Last modification | View Log | RSS feed

  1. /*
  2.  * Chomp bitstream filter
  3.  * Copyright (c) 2010 Alex Converse <alex.converse@gmail.com>
  4.  *
  5.  * This file is part of FFmpeg.
  6.  *
  7.  * FFmpeg is free software; you can redistribute it and/or
  8.  * modify it under the terms of the GNU Lesser General Public
  9.  * License as published by the Free Software Foundation; either
  10.  * version 2.1 of the License, or (at your option) any later version.
  11.  *
  12.  * FFmpeg is distributed in the hope that it will be useful,
  13.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15.  * Lesser General Public License for more details.
  16.  *
  17.  * You should have received a copy of the GNU Lesser General Public
  18.  * License along with FFmpeg; if not, write to the Free Software
  19.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  20.  */
  21.  
  22. #include "avcodec.h"
  23. #include "internal.h"
  24.  
  25. static int chomp_filter(AVBitStreamFilterContext *bsfc,
  26.                         AVCodecContext *avctx, const char *args,
  27.                         uint8_t  **poutbuf, int *poutbuf_size,
  28.                         const uint8_t *buf, int      buf_size,
  29.                         int keyframe)
  30. {
  31.     while (buf_size > 0 && !buf[buf_size-1])
  32.         buf_size--;
  33.  
  34.     *poutbuf = (uint8_t*) buf;
  35.     *poutbuf_size = buf_size;
  36.  
  37.     return 0;
  38. }
  39.  
  40. /**
  41.  * This filter removes a string of NULL bytes from the end of a packet.
  42.  */
  43. AVBitStreamFilter ff_chomp_bsf = {
  44.     .name   = "chomp",
  45.     .filter = chomp_filter,
  46. };
  47.