ffmpeg: remove hardcoded 'now' creation_time support

Every date parsing routine now uses av_parse_time which handles 'now' and
provides greater precision as well. This change also enables the segmenter
muxer to set the proper 'now' creation time at the beginning of each segment.
Signed-off-by: Marton Balint <cus@passwd.hu>

ffmpeg_opt.c

@@ -40,7 +40,6 @@
 #include "libavutil/parseutils.h"
 #include "libavutil/pixdesc.h"
 #include "libavutil/pixfmt.h"
-#include "libavutil/time_internal.h"
 
 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
 
@@ -2430,7 +2429,6 @@ loop_end:
         char type, *val;
         const char *stream_spec;
         int index = 0, j, ret = 0;
-        char now_time[256];
 
         val = strchr(o->metadata[i].u.str, '=');
         if (!val) {
@@ -2440,17 +2438,6 @@ loop_end:
         }
         *val++ = 0;
 
-        if (!strcmp(o->metadata[i].u.str, "creation_time") &&
-            !strcmp(val, "now")) {
-            time_t now = time(0);
-            struct tm *ptm, tmbuf;
-            ptm = localtime_r(&now, &tmbuf);
-            if (ptm) {
-                if (strftime(now_time, sizeof(now_time), "%Y-%m-%d %H:%M:%S", ptm))
-                    val = now_time;
-            }
-        }
-
         parse_meta_type(o->metadata[i].specifier, &type, &index, &stream_spec);
         if (type == 's') {
             for (j = 0; j < oc->nb_streams; j++) {