[vlc-devel] [PATCH] decoder: empty the input fifo on delete

Rémi Denis-Courmont remi at remlab.net
Wed Sep 2 14:19:07 CEST 2015

Le 2015-09-02 15:10, Thomas Guillem a écrit :
> On Wed, Sep 2, 2015, at 13:24, Rémi Denis-Courmont wrote:
>> Le 2015-09-02 14:05, Rémi Denis-Courmont a écrit :
>> > Le 2015-09-02 13:54, Rémi Denis-Courmont a écrit :
>> >> Or stop was requested, and the decoder owner should have flushed 
>> the
>> >> decoder already.
>> >>
>> >> Either way, the decoder input queue should be empty already.
>> >
>> > It looks like ES out only explicitly flushes on seek, but not on
>> > stop. Not sure if this should be considered a bug.
>> And that's because DecoderFlush() waits for the decoder thread to
>> complete flusing. Ideally it wouldn't need to do that though.
> If DecodeFlush don't wait for flushed state, we can solve this issue
> either by calling DecoderFlush from input_DecoderDelete or by calling
> input_DecoderFlush from ES out when deleting the decoder, right ?

I think so.

> For the DecoderThread, I didn't see that the cancellation point was
> called only when the fifo was empty. So an other way to fix this 
> issue
> is to add an other cancellation point when the fifo is not empty (but 
> I
> would prefer calling DecoderFlush from Delete).

The obvious work-around is to call vlc_testcancel().

Rémi Denis-Courmont

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