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2nd try to fix av_log() repeated detection

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Originally committed as revision 25174 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2010-09-24 15:37:01 +00:00
parent 7e117771cd
commit 1c1c80f0a3
4 changed files with 25 additions and 2 deletions
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5
doc/APIchanges
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@ -13,6 +13,11 @@ libavutil: 2009-03-08
API changes, most recent first:
2010-09-24 - r25174 - lavu 50.28.0 - av_log_set_flags()
Default of av_log() changed due to many problems to the old no repeat
detection. Read the docs of AV_LOG_SKIP_REPEATED in log.h before
enabling it for your app!.
2010-09-24 - r25167 - lavc 52.90.0 - av_opt_show2()
Deprecate av_opt_show() in favor or av_opt_show2().

2
libavutil/avutil.h
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@ -40,7 +40,7 @@
#define AV_VERSION(a, b, c) AV_VERSION_DOT(a, b, c)
#define LIBAVUTIL_VERSION_MAJOR 50
#define LIBAVUTIL_VERSION_MINOR 27
#define LIBAVUTIL_VERSION_MINOR 28
#define LIBAVUTIL_VERSION_MICRO 0
#define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \

9
libavutil/log.c
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@ -33,6 +33,7 @@
static
#endif
int av_log_level = AV_LOG_INFO;
static int flags;
#if defined(_WIN32) && !defined(__MINGW32CE__)
#include <windows.h>
@ -109,8 +110,9 @@ void av_log_default_callback(void* ptr, int level, const char* fmt, va_list vl)
if(!detect_repeats) detect_repeats= isatty(2) ? 1 : -1;
#endif
if(print_prefix && detect_repeats==1 && !strcmp(line, prev)){
if(print_prefix && (flags & AV_LOG_SKIP_REPEATED) && !strcmp(line, prev)){
count++;
if(detect_repeats==1)
fprintf(stderr, " Last message repeated %d times\r", count);
return;
}
@ -150,6 +152,11 @@ void av_log_set_level(int level)
av_log_level = level;
}
void av_log_set_flags(int arg)
{
flags= arg;
}
void av_log_set_callback(void (*callback)(void*, int, const char*, va_list))
{
av_log_callback = callback;

11
libavutil/log.h
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@ -135,4 +135,15 @@ void av_log_set_callback(void (*)(void*, int, const char*, va_list));
void av_log_default_callback(void* ptr, int level, const char* fmt, va_list vl);
const char* av_default_item_name(void* ctx);
/**
* Skip repeated messages, this requires the user app to use av_log() instead of
* (f)printf as the 2 would otherwise interfere and lead to
* "Last message repeated x times" messages below (f)printf messages with some
* bad luck.
* Also to receive the last, "last repeated" line if any, the user app must
* call av_log(NULL, AV_LOG_QUIET, ""); at the end
*/
#define AV_LOG_SKIP_REPEATED 1
void av_log_set_flags(int arg);
#endif /* AVUTIL_LOG_H */