Date: Mon, 18 Jan 2010 08:57:49 +0100 From: Clemens Ladisch <clemens@ladisch.de> To: Wes Morgan <morganw@chemikals.org> Cc: freebsd-multimedia@freebsd.org, Christian Weisgerber <naddy@mips.inka.de> Subject: Re: snd_hda multichannel support added Message-ID: <4B54147D.6070806@ladisch.de> In-Reply-To: <alpine.BSF.2.00.1001171904140.1524@ibyngvyr> References: <4B4D8747.2000601@FreeBSD.org> <hj07nb$1mj$1@lorvorc.mips.inka.de> <alpine.BSF.2.00.1001171904140.1524@ibyngvyr>
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Wes Morgan wrote: > On Sun, 17 Jan 2010, Christian Weisgerber wrote: > > On a vaguely related note: Is there anything anywhere in the open > > source world that real-time encodes multi-channel audio into AC3 > > or DTS so that it can be squeezed through an S/PDIF link? > > ffmpeg? I don't think the tool can be made to work in real time. ALSA's a52 plugin uses ffmpeg's libavcodec to convert 6-channel PCM to AC-3. It works more or less transparently for ALSA applications; it would not be easy to convert it to an API that does not have support for userspace plugins. Best regards, Clemens
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