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Coloring the log with ANSI.

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Ive checked this on black and white background and found no problem in terms
of readability.
flames welcome.

Originally committed as revision 22946 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer
2010-04-22 18:58:39 +00:00
parent 037e9afd37
commit 51e026d115
1 changed files with 18 additions and 1 deletions
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19
libavutil/log.c
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@@ -24,6 +24,7 @@
* logging functions * logging functions
*/ */
#include <unistd.h>
#include "avutil.h" #include "avutil.h"
#include "log.h" #include "log.h"
@@ -32,11 +33,27 @@ static
#endif #endif
int av_log_level = AV_LOG_INFO; int av_log_level = AV_LOG_INFO;
#if !HAVE_ISATTY
#define isatty(s) 0
#endif
#undef fprintf
static void colored_fputs(int color, const char *str){
if(isatty(2)){
fprintf(stderr, "\033[%dm\033[3%dm", color>>4, color&15);
}
fputs(str, stderr);
if(isatty(2)){
fprintf(stderr, "\033[0m");
}
}
void av_log_default_callback(void* ptr, int level, const char* fmt, va_list vl) void av_log_default_callback(void* ptr, int level, const char* fmt, va_list vl)
{ {
static int print_prefix=1; static int print_prefix=1;
static int count; static int count;
static char line[1024], prev[1024]; static char line[1024], prev[1024];
static const uint8_t color[]={0x41,0x41,0x11,0x03,9,9,9};
AVClass* avc= ptr ? *(AVClass**)ptr : NULL; AVClass* avc= ptr ? *(AVClass**)ptr : NULL;
if(level>av_log_level) if(level>av_log_level)
return; return;
@@ -57,7 +74,7 @@ void av_log_default_callback(void* ptr, int level, const char* fmt, va_list vl)
fprintf(stderr, " Last message repeated %d times\n", count); fprintf(stderr, " Last message repeated %d times\n", count);
count=0; count=0;
} }
fputs(line, stderr); colored_fputs(color[av_clip(level>>3, 0, 6)], line);
strcpy(prev, line); strcpy(prev, line);
} }