Add means to adjust the log level per context.

Originally committed as revision 23059 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 3 insertions, 0 deletions

diff --git a/libavutil/log.c b/libavutil/log.c
index 9a8b66ee4d..547287fc29 100644
--- a/libavutil/log.c
+++ b/libavutil/log.c
@@ -89,8 +89,11 @@ static void (*av_log_callback)(void*, int, const char*, va_list) = av_log_defaul
 
 void av_log(void* avcl, int level, const char *fmt, ...)
 {
+    AVClass* avc= avcl ? *(AVClass**)avcl : NULL;
     va_list vl;
     va_start(vl, fmt);
+    if(avc && avc->version >= (50<<16 | 15<<8 | 2) && avc->log_level_offset_offset && level>=AV_LOG_FATAL)
+        level += *(int*)(((uint8_t*)avcl) + avc->log_level_offset_offset);
     av_vlog(avcl, level, fmt, vl);
     va_end(vl);
 }