av_log.c

   1 /*
   2  * av_log to mp_msg converter
   3  * Copyright (C) 2006 Michael Niedermayer
   4  * Copyright (C) 2009 Uoti Urpala
   5  *
   6  * This file is part of MPlayer.
   7  *
   8  * MPlayer is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * MPlayer is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License along
  19  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  20  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  21  */
  22
  23 #include <stdlib.h>
  24 #include <stdbool.h>
  25
  26 #include "config.h"
  27 #include "mp_msg.h"
  28 #include <libavutil/log.h>
  29
  30 #ifdef CONFIG_FFMPEG
  31 #include <libavcodec/avcodec.h>
  32 #include <libavformat/avformat.h>
  33 #endif
  34
  35 static int av_log_level_to_mp_level(int av_level)
  36 {
  37     if (av_level > AV_LOG_INFO)
  38         return MSGL_V;
  39     if (av_level > AV_LOG_WARNING)
  40         return MSGL_INFO;
  41     if (av_level > AV_LOG_ERROR)
  42         return MSGL_WARN;
  43     if (av_level > AV_LOG_FATAL)
  44         return MSGL_ERR;
  45     return MSGL_FATAL;
  46 }
  47
  48 static int extract_msg_type_from_ctx(void *ptr)
  49 {
  50     if (!ptr)
  51         return MSGT_FIXME;
  52
  53     AVClass *avc = *(AVClass **)ptr;
  54
  55 #ifdef CONFIG_FFMPEG
  56     if (!strcmp(avc->class_name, "AVCodecContext")) {
  57         AVCodecContext *s = ptr;
  58         if (s->codec) {
  59             if (s->codec->type == CODEC_TYPE_AUDIO) {
  60                 if (s->codec->decode)
  61                     return MSGT_DECAUDIO;
  62             } else if (s->codec->type == CODEC_TYPE_VIDEO) {
  63                 if (s->codec->decode)
  64                     return MSGT_DECVIDEO;
  65             }
  66             // FIXME subtitles, encoders
  67             // What msgt for them? There is nothing appropriate...
  68         }
  69         return MSGT_FIXME;
  70     }
  71 #endif
  72
  73 #ifdef CONFIG_FFMPEG
  74     if (!strcmp(avc->class_name, "AVFormatContext")) {
  75         AVFormatContext *s = ptr;
  76         if (s->iformat)
  77             return MSGT_DEMUXER;
  78         else if (s->oformat)
  79             return MSGT_MUXER;
  80         return MSGT_FIXME;
  81     }
  82 #endif
  83
  84     return MSGT_FIXME;
  85 }
  86
  87 static void mp_msg_av_log_callback(void *ptr, int level, const char *fmt,
  88                                    va_list vl)
  89 {
  90     static bool print_prefix = 1;
  91     AVClass *avc = ptr ? *(AVClass **)ptr : NULL;
  92     int mp_level = av_log_level_to_mp_level(level);
  93     int type = extract_msg_type_from_ctx(ptr);
  94
  95     if (!mp_msg_test(type, mp_level))
  96         return;
  97
  98     if (print_prefix && avc)
  99         mp_msg(type, mp_level, "[%s @ %p]", avc->item_name(ptr), avc);
 100     print_prefix = fmt[strlen(fmt) - 1] == '\n';
 101
 102     mp_msg_va(type, mp_level, fmt, vl);
 103 }
 104
 105 void set_av_log_callback(void)
 106 {
 107   av_log_set_callback(mp_msg_av_log_callback);
 108 }