From b6d96a6bcc531c216623fbcdf9d5034f51abf216 Mon Sep 17 00:00:00 2001 From: Karthick J Date: Thu, 17 Jan 2019 14:28:20 +0530 Subject: [PATCH] avformat/dashenc: Format xs:datetime in millisecond precision For low latency streaming even milliseconds matter! --- libavformat/dashenc.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) diff --git a/libavformat/dashenc.c b/libavformat/dashenc.c index cfd0f601d4..9c90cf17e5 100644 --- a/libavformat/dashenc.c +++ b/libavformat/dashenc.c @@ -32,6 +32,7 @@ #include "libavutil/mathematics.h" #include "libavutil/opt.h" #include "libavutil/rational.h" +#include "libavutil/time.h" #include "libavutil/time_internal.h" #include "avc.h" @@ -668,12 +669,20 @@ static void write_time(AVIOContext *out, int64_t time) static void format_date_now(char *buf, int size) { - time_t t = time(NULL); struct tm *ptm, tmbuf; - ptm = gmtime_r(&t, &tmbuf); + int64_t time_us = av_gettime(); + int64_t time_ms = time_us / 1000; + const time_t time_s = time_ms / 1000; + int millisec = time_ms - (time_s * 1000); + ptm = gmtime_r(&time_s, &tmbuf); if (ptm) { - if (!strftime(buf, size, "%Y-%m-%dT%H:%M:%SZ", ptm)) + int len; + if (!strftime(buf, size, "%Y-%m-%dT%H:%M:%S", ptm)) { buf[0] = '\0'; + return; + } + len = strlen(buf); + snprintf(buf + len, size - len, ".%03dZ", millisec); } }