[MPlayer-dev-eng] [PATCH] Play previously played entries in shuffled playlist

[Adam Buechler]

On Sun, Jul 15, 2012 at 4:12 PM, Reimar Döffinger
<Reimar.Doeffinger at gmx.de> wrote:
>
> On 15 Jul 2012, at 20:43, Adam Buechler <butchler at gmail.com> wrote:
> > Allows you to play previously played entries again in a shuffled playlist
> > by stepping backward in the playtree. It does this by shuffling the
> > playtree as you step through it, choosing a random song and swapping it
> > with the next entry every time you're about to step onto an entry that
> > hasn't been played before.
>
> I suspect it changes behaviour quite a bit.
> But I don't really understand what exactly the condition you added will end up doing.
> In particular the case of using -loop 0 -shuffle I suspect will behave strangle (I suspect it selects a random entry when you backstep when a new loop iteration has just begun?)

Yes. When a new loop iteration begins, it just plays the first entry
in the playlist, and then when you backstep past the beginning of the
playlist it just chooses a random (and not yet played) item and puts
it at the beginning of the playlist. What would the correct behavior
be for backstepping at the beginning of a new loop iteration?

> What it clearly changes is that the playtree step functions no longer actually step in the playtree but do a "previously played", it might be better to make that a separate command.

Sounds like a good idea. What do you think would be a good name? Maybe
-shuffle-previous or -shuffle-experimental?

> What seems less risky would be to just add a last-played index, or even links to played previously/next, however any implementation will act questionably at some point with -loop 0....
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