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Re: [Bino-list] TrueHD audio error


From: Martin Lambers
Subject: Re: [Bino-list] TrueHD audio error
Date: Mon, 18 Apr 2011 22:41:23 +0200
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.14) Gecko/20110223 Thunderbird/3.1.8

On 18/04/11 21:36, Robert Pliszko wrote:
>> Actually it is not an FFmpeg limitation, but a Bino limitation.
>> Currently, Bino takes whatever it gets from FFmpeg and then relies on
>> OpenAL to convert it to whatever format is suitable for output. If
>> OpenAL cannot handle what FFmpeg delivers, Bino just rejects it, to
>> avoid doing audio conversion itself and keep things simple.
>>
>> OpenAL supports 32bit audio only in floating point format, not in signed
>> integer (s32) format. So currently Bino just rejects s32 audio. However,
>> we could convert s32 to float ourselves either during decoding or before
>> playback relatively easy. We could do this in-place because both data
>> types are 32bit. It would lose a little bit of precision, but not much.
>>
>> If you have a link to a freely accessible sample file, I can look into
>> this during the next few days.
>>
>> Martin
> 
> Thanks for your explanations.
> You can download sample from link:
> http://systems-design.pl/xbmc/sample-001.mkv

Thanks! It works for me now:
http://git.savannah.gnu.org/cgit/bino.git/commit/?id=cd681825fb32f1763b317daaff87f2ac0dd149be

Can you test this?

Martin



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