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4th try at getting ansi colors working with a default of color=yes_please.

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Colors will only be used if the TERM env var is set and NO_COLOR is not set.

Originally committed as revision 22957 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2010-04-23 21:27:26 +00:00
parent 0bb848016a
commit 6204402409
1 changed files with 12 additions and 5 deletions
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17
libavutil/log.c
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@ -25,6 +25,7 @@
*/
#include <unistd.h>
#include <stdlib.h>
#include "avutil.h"
#include "log.h"
@ -33,17 +34,23 @@ static
#endif
int av_log_level = AV_LOG_INFO;
#if (!HAVE_ISATTY) || defined(_WIN32)
#define isatty(s) 0
#endif
static int use_ansi_color=-1;
#undef fprintf
static void colored_fputs(int color, const char *str){
if(isatty(2)){
if(use_ansi_color<0){
#if HAVE_ISATTY && !defined(_WIN32)
use_ansi_color= getenv("TERM") && !getenv("NO_COLOR") && isatty(2);
#else
use_ansi_color= 0;
#endif
}
if(use_ansi_color){
fprintf(stderr, "\033[%d;3%dm", color>>4, color&15);
}
fputs(str, stderr);
if(isatty(2)){
if(use_ansi_color){
fprintf(stderr, "\033[0m");
}
}