[FFmpeg-devel] [PATCH 2/2] opt: print ranges in opt_list()
Michael Niedermayer
michaelni at gmx.at
Tue Dec 4 20:46:41 CET 2012
The formating can and should be improved.
Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
---
libavutil/opt.c | 42 ++++++++++++++++++++++++++++++++++++++++++
1 file changed, 42 insertions(+)
diff --git a/libavutil/opt.c b/libavutil/opt.c
index cd26682..7c94cff 100644
--- a/libavutil/opt.c
+++ b/libavutil/opt.c
@@ -37,6 +37,8 @@
#include "mathematics.h"
#include "samplefmt.h"
+#include <float.h>
+
#if FF_API_FIND_OPT
//FIXME order them and do a bin search
const AVOption *av_find_opt(void *v, const char *name, const char *unit, int mask, int flags)
@@ -728,10 +730,31 @@ int av_opt_flag_is_set(void *obj, const char *field_name, const char *flag_name)
return res & flag->default_val.i64;
}
+static void log_value(void *av_log_obj, int level, double d)
+{
+ if (d == INT_MAX) {
+ av_log(av_log_obj, level, "INT_MAX");
+ } else if (d == INT_MIN) {
+ av_log(av_log_obj, level, "INT_MIN");
+ } else if (d == (double)INT64_MAX) {
+ av_log(av_log_obj, level, "I64_MAX");
+ } else if (d == INT64_MIN) {
+ av_log(av_log_obj, level, "I64_MIN");
+ } else if (d == FLT_MAX) {
+ av_log(av_log_obj, level, "FLT_MAX");
+ } else if (d == FLT_MIN) {
+ av_log(av_log_obj, level, "FLT_MIN");
+ } else {
+ av_log(av_log_obj, level, "%7.2g", d);
+ }
+}
+
static void opt_list(void *obj, void *av_log_obj, const char *unit,
int req_flags, int rej_flags)
{
const AVOption *opt=NULL;
+ AVOptionRanges *r;
+ int i;
while ((opt = av_opt_next(obj, opt))) {
if (!(opt->flags & req_flags) || (opt->flags & rej_flags))
@@ -798,6 +821,25 @@ static void opt_list(void *obj, void *av_log_obj, const char *unit,
av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_AUDIO_PARAM ) ? 'A' : '.');
av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_SUBTITLE_PARAM) ? 'S' : '.');
+ r = av_opt_query_ranges(obj, opt->name, AV_OPT_SEARCH_FAKE_OBJ);
+ if(r) {
+ switch (opt->type) {
+ case AV_OPT_TYPE_INT:
+ case AV_OPT_TYPE_INT64:
+ case AV_OPT_TYPE_DOUBLE:
+ case AV_OPT_TYPE_FLOAT:
+ case AV_OPT_TYPE_RATIONAL:
+ for (i=0; i<r->nb_ranges; i++) {
+ log_value(av_log_obj, AV_LOG_INFO, r->range[i]->value_min);
+ av_log(av_log_obj, AV_LOG_INFO, "-");
+ log_value(av_log_obj, AV_LOG_INFO, r->range[i]->value_max);
+ av_log(av_log_obj, AV_LOG_INFO, " ");
+ }
+ break;
+ }
+ av_opt_freep_ranges(&r);
+ }
+
if (opt->help)
av_log(av_log_obj, AV_LOG_INFO, " %s", opt->help);
av_log(av_log_obj, AV_LOG_INFO, "\n");
--
1.7.9.5
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