1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/libavutil/log.c	Tue Sep 25 15:55:33 2012 +0200
     1.3 @@ -0,0 +1,111 @@
     1.4 +/*
     1.5 + * log functions
     1.6 + * Copyright (c) 2003 Michel Bardiaux
     1.7 + *
     1.8 + * This file is part of FFmpeg.
     1.9 + *
    1.10 + * FFmpeg is free software; you can redistribute it and/or
    1.11 + * modify it under the terms of the GNU Lesser General Public
    1.12 + * License as published by the Free Software Foundation; either
    1.13 + * version 2.1 of the License, or (at your option) any later version.
    1.14 + *
    1.15 + * FFmpeg is distributed in the hope that it will be useful,
    1.16 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
    1.17 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    1.18 + * Lesser General Public License for more details.
    1.19 + *
    1.20 + * You should have received a copy of the GNU Lesser General Public
    1.21 + * License along with FFmpeg; if not, write to the Free Software
    1.22 + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
    1.23 + */
    1.24 +
    1.25 +/**
    1.26 + * @file
    1.27 + * logging functions
    1.28 + */
    1.29 +#include "error.h"
    1.30 +#include <unistd.h>
    1.31 +#include <stdlib.h>
    1.32 +#include "log.h"
    1.33 +
    1.34 +
    1.35 +static int av_log_level = AV_LOG_INFO;
    1.36 +
    1.37 +static int use_ansi_color=-1;
    1.38 +
    1.39 +#undef fprintf
    1.40 +static void colored_fputs(int color, const char *str){
    1.41 +    if(use_ansi_color<0){
    1.42 +#if HAVE_ISATTY && !defined(_WIN32)
    1.43 +        use_ansi_color= getenv("TERM") && !getenv("NO_COLOR") && isatty(2);
    1.44 +#else
    1.45 +        use_ansi_color= 0;
    1.46 +#endif
    1.47 +    }
    1.48 +
    1.49 +    if(use_ansi_color){
    1.50 +        fprintf(stderr, "\033[%d;3%dm", color>>4, color&15);
    1.51 +    }
    1.52 +    fputs(str, stderr);
    1.53 +    if(use_ansi_color){
    1.54 +        fprintf(stderr, "\033[0m");
    1.55 +    }
    1.56 +}
    1.57 +
    1.58 +void av_log_default_callback(int level, const char* fmt, va_list vl)
    1.59 +{
    1.60 +    static int print_prefix=1;
    1.61 +    static int count;
    1.62 +    static char line[1024], prev[1024];
    1.63 +    static const uint8_t color[]={0x41,0x41,0x11,0x03,9,9,9};
    1.64 +
    1.65 +    if(level>av_log_level)
    1.66 +        return;
    1.67 +#undef fprintf
    1.68 +
    1.69 +    line[0]=0;
    1.70 +
    1.71 +    vsnprintf(line + strlen(line), sizeof(line) - strlen(line), fmt, vl);
    1.72 +
    1.73 +    print_prefix= line[strlen(line)-1] == '\n';
    1.74 +    if(print_prefix && !strcmp(line, prev)){
    1.75 +        count++;
    1.76 +        return;
    1.77 +    }
    1.78 +    if(count>0){
    1.79 +        fprintf(stderr, "    Last message repeated %d times\n", count);
    1.80 +        count=0;
    1.81 +    }
    1.82 +    colored_fputs(color[av_clip(level>>3, 0, 6)], line);
    1.83 +    strcpy(prev, line);
    1.84 +}
    1.85 +
    1.86 +static void (*av_log_callback)(int, const char*, va_list) = av_log_default_callback;
    1.87 +
    1.88 +void av_log(int level, const char *fmt, ...)
    1.89 +{
    1.90 +    va_list vl;
    1.91 +    va_start(vl, fmt);
    1.92 +    av_vlog(level, fmt, vl);
    1.93 +    va_end(vl);
    1.94 +}
    1.95 +
    1.96 +void av_vlog(int level, const char *fmt, va_list vl)
    1.97 +{
    1.98 +    av_log_callback(level, fmt, vl);
    1.99 +}
   1.100 +
   1.101 +int av_log_get_level(void)
   1.102 +{
   1.103 +    return av_log_level;
   1.104 +}
   1.105 +
   1.106 +void av_log_set_level(int level)
   1.107 +{
   1.108 +    av_log_level = level;
   1.109 +}
   1.110 +
   1.111 +void av_log_set_callback(void (*callback)(int, const char*, va_list))
   1.112 +{
   1.113 +    av_log_callback = callback;
   1.114 +}