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/avutil.h>
  30 #include <libavutil/log.h>
  31
  32 #include <libavcodec/avcodec.h>
  33 #include <libavformat/avformat.h>
  34 #include <libswscale/swscale.h>
  35
  36 static int av_log_level_to_mp_level(int av_level)
  37 {
  38     if (av_level > AV_LOG_VERBOSE)
  39         return MSGL_DBG2;
  40     if (av_level > AV_LOG_INFO)
  41         return MSGL_V;
  42     if (av_level > AV_LOG_WARNING)
  43         return MSGL_INFO;
  44     if (av_level > AV_LOG_ERROR)
  45         return MSGL_WARN;
  46     if (av_level > AV_LOG_FATAL)
  47         return MSGL_ERR;
  48     return MSGL_FATAL;
  49 }
  50
  51 static int extract_msg_type_from_ctx(void *ptr)
  52 {
  53     if (!ptr)
  54         return MSGT_FIXME;
  55
  56     AVClass *avc = *(AVClass **)ptr;
  57     if (!avc) {
  58         mp_msg(MSGT_FIXME, MSGL_WARN,
  59                "av_log callback called with bad parameters (NULL AVClass).\n"
  60                "This is a bug in one of Libav/FFmpeg libraries used.\n");
  61         return MSGT_FIXME;
  62     }
  63
  64     if (!strcmp(avc->class_name, "AVCodecContext")) {
  65         AVCodecContext *s = ptr;
  66         if (s->codec) {
  67             if (s->codec->type == AVMEDIA_TYPE_AUDIO) {
  68                 if (s->codec->decode)
  69                     return MSGT_DECAUDIO;
  70             } else if (s->codec->type == AVMEDIA_TYPE_VIDEO) {
  71                 if (s->codec->decode)
  72                     return MSGT_DECVIDEO;
  73             }
  74             // FIXME subtitles, encoders
  75             // What msgt for them? There is nothing appropriate...
  76         }
  77         return MSGT_FIXME;
  78     }
  79
  80     if (!strcmp(avc->class_name, "AVFormatContext")) {
  81         AVFormatContext *s = ptr;
  82         if (s->iformat)
  83             return MSGT_DEMUXER;
  84         else if (s->oformat)
  85             return MSGT_MUXER;
  86         return MSGT_FIXME;
  87     }
  88
  89     return MSGT_FIXME;
  90 }
  91
  92 static void mp_msg_av_log_callback(void *ptr, int level, const char *fmt,
  93                                    va_list vl)
  94 {
  95     static bool print_prefix = 1;
  96     AVClass *avc = ptr ? *(AVClass **)ptr : NULL;
  97     int mp_level = av_log_level_to_mp_level(level);
  98     int type = extract_msg_type_from_ctx(ptr);
  99
 100     if (!mp_msg_test(type, mp_level))
 101         return;
 102
 103     if (print_prefix && avc)
 104         mp_msg(type, mp_level, "[%s @ %p]", avc->item_name(ptr), avc);
 105     print_prefix = fmt[strlen(fmt) - 1] == '\n';
 106
 107     mp_msg_va(type, mp_level, fmt, vl);
 108 }
 109
 110 void init_libav(void)
 111 {
 112     av_log_set_callback(mp_msg_av_log_callback);
 113     avcodec_register_all();
 114     av_register_all();
 115     avformat_network_init();
 116 }
 117
 118 #define V(x) (x)>>16, (x)>>8 & 255, (x) & 255
 119 static void print_version(char *name, unsigned buildv, unsigned runv)
 120 {
 121
 122     if (buildv == runv)
 123         mp_msg(MSGT_CPLAYER, MSGL_V, "Compiled against %s version %d.%d.%d\n",
 124                name, V(buildv));
 125     else
 126         mp_msg(MSGT_CPLAYER, MSGL_V, "Compiled against %s version %d.%d.%d "
 127                "(runtime %d.%d.%d)\n", name, V(buildv), V(runv));
 128 }
 129 #undef V
 130
 131 void print_libav_versions(void)
 132 {
 133     print_version("libavutil", LIBAVUTIL_VERSION_INT, avutil_version());
 134     print_version("libavcodec", LIBAVCODEC_VERSION_INT, avcodec_version());
 135     print_version("libavformat", LIBAVFORMAT_VERSION_INT, avformat_version());
 136     print_version("libswscale", LIBSWSCALE_VERSION_INT, swscale_version());
 137 }