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 #ifdef CONFIG_FFMPEG
  33 #include <libavcodec/avcodec.h>
  34 #include <libavformat/avformat.h>
  35 #include <libswscale/swscale.h>
  36 #include <libpostproc/postprocess.h>
  37 #endif
  38
  39 static int av_log_level_to_mp_level(int av_level)
  40 {
  41     if (av_level > AV_LOG_VERBOSE)
  42         return MSGL_DBG2;
  43     if (av_level > AV_LOG_INFO)
  44         return MSGL_V;
  45     if (av_level > AV_LOG_WARNING)
  46         return MSGL_INFO;
  47     if (av_level > AV_LOG_ERROR)
  48         return MSGL_WARN;
  49     if (av_level > AV_LOG_FATAL)
  50         return MSGL_ERR;
  51     return MSGL_FATAL;
  52 }
  53
  54 static int extract_msg_type_from_ctx(void *ptr)
  55 {
  56     if (!ptr)
  57         return MSGT_FIXME;
  58
  59     AVClass *avc = *(AVClass **)ptr;
  60     if (!avc) {
  61         mp_msg(MSGT_FIXME, MSGL_WARN,
  62                "av_log callback called with bad parameters (NULL AVClass).\n"
  63                "This is a bug in one of Libav/FFmpeg libraries used.\n");
  64         return MSGT_FIXME;
  65     }
  66
  67 #ifdef CONFIG_FFMPEG
  68     if (!strcmp(avc->class_name, "AVCodecContext")) {
  69         AVCodecContext *s = ptr;
  70         if (s->codec) {
  71             if (s->codec->type == AVMEDIA_TYPE_AUDIO) {
  72                 if (s->codec->decode)
  73                     return MSGT_DECAUDIO;
  74             } else if (s->codec->type == AVMEDIA_TYPE_VIDEO) {
  75                 if (s->codec->decode)
  76                     return MSGT_DECVIDEO;
  77             }
  78             // FIXME subtitles, encoders
  79             // What msgt for them? There is nothing appropriate...
  80         }
  81         return MSGT_FIXME;
  82     }
  83
  84     if (!strcmp(avc->class_name, "AVFormatContext")) {
  85         AVFormatContext *s = ptr;
  86         if (s->iformat)
  87             return MSGT_DEMUXER;
  88         else if (s->oformat)
  89             return MSGT_MUXER;
  90         return MSGT_FIXME;
  91     }
  92 #endif
  93
  94     return MSGT_FIXME;
  95 }
  96
  97 static void mp_msg_av_log_callback(void *ptr, int level, const char *fmt,
  98                                    va_list vl)
  99 {
 100     static bool print_prefix = 1;
 101     AVClass *avc = ptr ? *(AVClass **)ptr : NULL;
 102     int mp_level = av_log_level_to_mp_level(level);
 103     int type = extract_msg_type_from_ctx(ptr);
 104
 105     if (!mp_msg_test(type, mp_level))
 106         return;
 107
 108     if (print_prefix && avc)
 109         mp_msg(type, mp_level, "[%s @ %p]", avc->item_name(ptr), avc);
 110     print_prefix = fmt[strlen(fmt) - 1] == '\n';
 111
 112     mp_msg_va(type, mp_level, fmt, vl);
 113 }
 114
 115 void init_libav(void)
 116 {
 117     av_log_set_callback(mp_msg_av_log_callback);
 118 #ifdef CONFIG_FFMPEG
 119     avcodec_init();
 120     avcodec_register_all();
 121
 122     av_register_all();
 123 #endif
 124 }
 125
 126 #define V(x) (x)>>16, (x)>>8 & 255, (x) & 255
 127 static void print_version(char *name, unsigned buildv, unsigned runv)
 128 {
 129
 130     if (buildv == runv)
 131         mp_msg(MSGT_CPLAYER, MSGL_V, "Compiled against %s version %d.%d.%d\n",
 132                name, V(buildv));
 133     else
 134         mp_msg(MSGT_CPLAYER, MSGL_V, "Compiled against %s version %d.%d.%d "
 135                "(runtime %d.%d.%d)\n", name, V(buildv), V(runv));
 136 }
 137 #undef V
 138
 139 void print_libav_versions(void)
 140 {
 141     print_version("libavutil", LIBAVUTIL_VERSION_INT, avutil_version());
 142 #ifdef CONFIG_FFMPEG
 143     print_version("libavcodec", LIBAVCODEC_VERSION_INT, avcodec_version());
 144     print_version("libavformat", LIBAVFORMAT_VERSION_INT, avformat_version());
 145     print_version("libswscale", LIBSWSCALE_VERSION_INT, swscale_version());
 146     print_version("libpostproc", LIBPOSTPROC_VERSION_INT, postproc_version());
 147 #endif
 148 }