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 "av_log.h"
  27 #include "config.h"
  28 #include "mp_msg.h"
  29 #include <libavutil/log.h>
  30
  31 #ifdef CONFIG_FFMPEG
  32 #include <libavcodec/avcodec.h>
  33 #include <libavformat/avformat.h>
  34 #endif
  35
  36 static int av_log_level_to_mp_level(int av_level)
  37 {
  38     if (av_level > AV_LOG_INFO)
  39         return MSGL_V;
  40     if (av_level > AV_LOG_WARNING)
  41         return MSGL_INFO;
  42     if (av_level > AV_LOG_ERROR)
  43         return MSGL_WARN;
  44     if (av_level > AV_LOG_FATAL)
  45         return MSGL_ERR;
  46     return MSGL_FATAL;
  47 }
  48
  49 static int extract_msg_type_from_ctx(void *ptr)
  50 {
  51     if (!ptr)
  52         return MSGT_FIXME;
  53
  54     AVClass *avc = *(AVClass **)ptr;
  55
  56 #ifdef CONFIG_FFMPEG
  57     if (!strcmp(avc->class_name, "AVCodecContext")) {
  58         AVCodecContext *s = ptr;
  59         if (s->codec) {
  60             if (s->codec->type == AVMEDIA_TYPE_AUDIO) {
  61                 if (s->codec->decode)
  62                     return MSGT_DECAUDIO;
  63             } else if (s->codec->type == AVMEDIA_TYPE_VIDEO) {
  64                 if (s->codec->decode)
  65                     return MSGT_DECVIDEO;
  66             }
  67             // FIXME subtitles, encoders
  68             // What msgt for them? There is nothing appropriate...
  69         }
  70         return MSGT_FIXME;
  71     }
  72 #endif
  73
  74 #ifdef CONFIG_FFMPEG
  75     if (!strcmp(avc->class_name, "AVFormatContext")) {
  76         AVFormatContext *s = ptr;
  77         if (s->iformat)
  78             return MSGT_DEMUXER;
  79         else if (s->oformat)
  80             return MSGT_MUXER;
  81         return MSGT_FIXME;
  82     }
  83 #endif
  84
  85     return MSGT_FIXME;
  86 }
  87
  88 static void mp_msg_av_log_callback(void *ptr, int level, const char *fmt,
  89                                    va_list vl)
  90 {
  91     static bool print_prefix = 1;
  92     AVClass *avc = ptr ? *(AVClass **)ptr : NULL;
  93     int mp_level = av_log_level_to_mp_level(level);
  94     int type = extract_msg_type_from_ctx(ptr);
  95
  96     if (!mp_msg_test(type, mp_level))
  97         return;
  98
  99     if (print_prefix && avc)
 100         mp_msg(type, mp_level, "[%s @ %p]", avc->item_name(ptr), avc);
 101     print_prefix = fmt[strlen(fmt) - 1] == '\n';
 102
 103     mp_msg_va(type, mp_level, fmt, vl);
 104 }
 105
 106 void set_av_log_callback(void)
 107 {
 108   av_log_set_callback(mp_msg_av_log_callback);
 109 }