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avutil/opt: Print out numeric values of option constants 

It's often not obvious how option constants relate to numerical values.
Defaults are sometimes printed as numbers and from/to are always printed as numbers.
Printing the numeric values of options constants avoids this confusion.
It also allows to see which constants are equivalent.

Before this patch:

  -segment_list_type <int>        E........ set the segment list type (from -1 to 4) (default -1)
     flat                         E........ flat format
     csv                          E........ csv format
     ext                          E........ extended format
     ffconcat                     E........ ffconcat format
     m3u8                         E........ M3U8 format
     hls                          E........ Apple HTTP Live Streaming compatible

Afterwards:

  -segment_list_type <int>        E........ set the segment list type (from -1 to 4) (default -1)
     flat            0            E........ flat format
     csv             1            E........ csv format
     ext             3            E........ extended format
     ffconcat        4            E........ ffconcat format
     m3u8            2            E........ M3U8 format
     hls             2            E........ Apple HTTP Live Streaming compatible

Signed-off-by: softworkz <softworkz@hotmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Soft Works 2019-09-17 01:09:05 +00:00 committed by Michael Niedermayer
parent 667df60b14
commit 9e0a071ede
1 changed files with 8 additions and 3 deletions
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11
libavutil/opt.c
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@ -1119,7 +1119,7 @@ static char *get_opt_flags_string(void *obj, const char *unit, int64_t value)
}
static void opt_list(void *obj, void *av_log_obj, const char *unit,
int req_flags, int rej_flags)
int req_flags, int rej_flags, enum AVOptionType parent_type)
{
const AVOption *opt = NULL;
AVOptionRanges *r;
@ -1199,6 +1199,11 @@ static void opt_list(void *obj, void *av_log_obj, const char *unit,
av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "<boolean>");
break;
case AV_OPT_TYPE_CONST:
if (parent_type == AV_OPT_TYPE_INT)
av_log(av_log_obj, AV_LOG_INFO, "%-12d ", opt->default_val.i64);
else
av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "");
break;
default:
av_log(av_log_obj, AV_LOG_INFO, "%-12s ", "");
break;
@ -1303,7 +1308,7 @@ static void opt_list(void *obj, void *av_log_obj, const char *unit,
av_log(av_log_obj, AV_LOG_INFO, "\n");
if (opt->unit && opt->type != AV_OPT_TYPE_CONST)
opt_list(obj, av_log_obj, opt->unit, req_flags, rej_flags);
opt_list(obj, av_log_obj, opt->unit, req_flags, rej_flags, opt->type);
}
}
@ -1314,7 +1319,7 @@ int av_opt_show2(void *obj, void *av_log_obj, int req_flags, int rej_flags)
av_log(av_log_obj, AV_LOG_INFO, "%s AVOptions:\n", (*(AVClass **)obj)->class_name);
opt_list(obj, av_log_obj, NULL, req_flags, rej_flags);
opt_list(obj, av_log_obj, NULL, req_flags, rej_flags, -1);
return 0;
}