Date: Wed, 25 Jan 2012 11:45:50 +0000 (UTC) From: Alexander Motin <mav@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r230537 - head/sys/dev/sound/pcm Message-ID: <201201251145.q0PBjoIv023472@svn.freebsd.org>
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Author: mav Date: Wed Jan 25 11:45:50 2012 New Revision: 230537 URL: http://svn.freebsd.org/changeset/base/230537 Log: Allow PASSTHROUGH (AC3) to have more then 2 channels. 8 channels can be used to get more then 6.144Mbps bandwidth. Modified: head/sys/dev/sound/pcm/channel.c Modified: head/sys/dev/sound/pcm/channel.c ============================================================================== --- head/sys/dev/sound/pcm/channel.c Wed Jan 25 11:28:18 2012 (r230536) +++ head/sys/dev/sound/pcm/channel.c Wed Jan 25 11:45:50 2012 (r230537) @@ -2000,9 +2000,10 @@ chn_setformat(struct pcm_channel *c, uin int ret; /* XXX force stereo */ - if (format & AFMT_PASSTHROUGH) + if ((format & AFMT_PASSTHROUGH) && AFMT_CHANNEL(format) < 2) { format = SND_FORMAT(format, AFMT_PASSTHROUGH_CHANNEL, AFMT_PASSTHROUGH_EXTCHANNEL); + } oldformat = c->format; oldspeed = c->speed;
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