modules/codec/avcodec/avutil.h

   1 /*****************************************************************************
   2  * avutil.h: avutil helper functions
   3  *****************************************************************************
   4  * Copyright (C) 1999-2008 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Laurent Aimar <fenrir@via.ecp.fr>
   8  *          Gildas Bazin <gbazin@videolan.org>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  23  *****************************************************************************/
  24
  25 /*****************************************************************************
  26  * Export libavutil messages to the VLC message system
  27  *****************************************************************************/
  28 static inline void LibavutilCallback( void *p_opaque, int i_level,
  29                         const char *psz_format, va_list va )
  30 {
  31     AVCodecContext *p_avctx = (AVCodecContext *)p_opaque;
  32     const AVClass *p_avc;
  33
  34     p_avc = p_avctx ? p_avctx->av_class : 0;
  35
  36 #define cln p_avc->class_name
  37     /* Make sure we can get p_this back */
  38     if( !p_avctx || !p_avc || !cln ||
  39         cln[0]!='A' || cln[1]!='V' || cln[2]!='C' || cln[3]!='o' ||
  40         cln[4]!='d' || cln[5]!='e' || cln[6]!='c' )
  41     {
  42         if( i_level == AV_LOG_ERROR ) vfprintf( stderr, psz_format, va );
  43         return;
  44     }
  45 #undef cln
  46
  47     switch( i_level )
  48     {
  49     case AV_LOG_DEBUG:
  50     case AV_LOG_INFO:
  51         /* Print debug messages if they were requested */
  52         if( !p_avctx->debug )
  53             break;
  54
  55     case AV_LOG_ERROR:
  56     case AV_LOG_QUIET:
  57         vfprintf( stderr, psz_format, va );
  58         break;
  59     }
  60 }