[vlc-devel] [PATCH] Naming patterns for HLS segments
funman at videolan.org
Fri Apr 13 19:54:13 CEST 2012
Le 13/04/2012 13:01, Krenar Qehaja a écrit :
> On Fri, Apr 13, 2012 at 10:35 AM, Jean-Baptiste Kempf <jb at videolan.org> wrote:
>> timestamp since EPOCH seems overkill.
> Hi Jean-Baptiste Kempf,
> Me and Lukasz (the author of this patch) are working on a few features
> for VLC. I'll try to make a comparison between incremental naming
> pattern and Unix time-stamps.
> *Incremental naming pattern:
> **It uses the following format: 00000001.ts, 00000002.ts, 00000003.ts, etc.
> **In essence, it has two "flaws":
> ***There is now way to navigate in time using this naming pattern. If
> you collect the .ts segments from a live feed, and want to play them
> from let's say 9 April 2012 12:34:56, is almost impossible, as
> 00017661.ts doesn't help you much on that.
> ***If VLC crashes (which is likely to happen at some point) while it's
> writing the .ts segments, it will loose track. Starting VLC again (or
> autostart), will start overwriting the existing .ts segments, starting
> from 00000001.ts.
> *Unix time-stamp naming pattern:
> **It uses the following format: 1334332990.ts, 1334332991.ts,
> 1334332992.ts, etc.
> **Pros over incremental naming pattern:
> ***Having Unix time-stamps as file-names
You already have the timestamp, from the UNIX timestamp no ? (creating date)
, gives us the ability to
> manage time/dates using POSIX standards. Using it, we have clear
> navigation in time. If I want to play content from 9 April 2012
> 12:34:56, I know that starting point is 1333974896.ts.
> ***If VLC crashes (again, it's likely to happen at some point) while
> it's in the process of writing .ts files, it will not loose track as
> file-names are always unique. Starting VLC again, will simply continue
> writing .ts segments to whatever current Unix time-stamp it is, and
> doesn't overwrite anything.
> By the way, we've been using/testing this feature for some time now,
> and we want it to get merged in VLC as an option, while incremental
> naming pattern would still be the primary option.
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