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Allow to set av_log_set_level to reduce ffmpeg level below AV_LOG_ERROR

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This commit is contained in:
Michel Promonet 2021-10-18 18:30:13 +02:00
parent c316dbe2aa
commit 9a9e457dd6
1 changed files with 11 additions and 4 deletions
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15
modules/videoio/src/cap_ffmpeg_impl.hpp
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@ -850,6 +850,7 @@ static void ffmpeg_log_callback(void *ptr, int level, const char *fmt, va_list v
static bool skip_header = false;
static int prev_level = -1;
CV_UNUSED(ptr);
if (level>av_log_get_level()) return;
if (!skip_header || level != prev_level) printf("[OPENCV:FFMPEG:%02d] ", level);
vprintf(fmt, vargs);
size_t fmt_len = strlen(fmt);
@ -866,15 +867,21 @@ class InternalFFMpegRegister
static void initLogger_()
{
#ifndef NO_GETENV
#ifndef NO_GETENV
char* debug_option = getenv("OPENCV_FFMPEG_DEBUG");
if (debug_option != NULL)
char* level_option = getenv("OPENCV_FFMPEG_LOGLEVEL");
int level = AV_LOG_VERBOSE;
if (level_option != NULL)
{
av_log_set_level(AV_LOG_VERBOSE);
level = atoi(level_option);
}
if ( (debug_option != NULL) || (level_option != NULL) )
{
av_log_set_level(level);
av_log_set_callback(ffmpeg_log_callback);
}
else
#endif
#endif
{
av_log_set_level(AV_LOG_ERROR);
}