[FFmpeg-devel] [PATCH] Support for zulu timezone format for PDT in HLS playlists

Marton Balint cus at passwd.hu
Sun Nov 3 14:14:18 EET 2019

On Fri, 25 Oct 2019, Ole Andre Birkedal wrote:

> I think this is the best solution, with just one new flag +utc_pdt that 
> will force timestamps of PDT to be in UTC with the format 
> YYYY-MM-DDThh:mm:ssZ. Too many flags will be confusing, and the "zulu" 
> name can be a bit confusing so I removed any mention of that.


+ at item utc_pdt
+Always use UTC timezone in @code{EXT-X-PROGRAM-DATE-TIME} tags with format
+ at code{#EXT-X-PROGRAM-DATE-TIME:<YYYY-MM-DDThh:mm:ssZ>}.

The format is not entirely correct, miliseconds are also part of the 

+        // Generate correct offset string if we're not using UTC
+        if (!utc_pdt && !strftime(buf1, sizeof(buf1), "%z", tm) ||
+            buf1[1]<'0' || buf1[1]>'2') {

There seems to be an operator precedence issue here.

Other than that looks good, but Steven Liu is the maintainer of hls.


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