Re: Parallel decoding - artifacts

robert <[email protected]>
Newsgroups gmane.comp.audio.mp3.lame
Organization The LAME Open Source MP3 Encoder Project
Message-ID <[email protected]>
Hello Vladimír,

which LAME version are you using?

Ciao Robert

Am 03.06.2013, 13:40 Uhr, schrieb Vladimír Tichý <[email protected]>:

> Hi,
> I have a huge problem using lame to play several MP3 files at once. I  
> have
> implemented a player with independent reading thread and I can use up to  
> 5
> these players in my application. Everything is OK when only one player is
> playing but when I launch the second one, artifacts start to appear in  
> the
> output signal.
>
> I managed to reduce the amount of artifacts using mutex thread
> synchronization so only one player is allowed to call hip_decode1_headers
> method at one moment. Despite of this synchronization this method can
> return some wrong samples to its PCM bufers. Using a sine test signal it
> seems like the decoder sometimes skips some samples.
>
> I read dev thread "Thread safe lame" (
> https://sourceforge.net/mailarchive/message.php?msg_id=8800413) and was
> wondered about the second rule: "Do not use the decoder". I hope it is
> possible to use lame engine to read MP3 files paralelly.
>
> Thank you for any advice.
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