Date: Sat, 28 Jan 2012 03:58:35 +0100 From: =?ISO-8859-1?Q?Micka=EBl_Maillot?= <mickael.maillot@gmail.com> To: Alexander Motin <mav@freebsd.org> Cc: freebsd-multimedia@freebsd.org, FreeBSD current <freebsd-current@freebsd.org> Subject: Re: [RFT] Major snd_hda rewrite Message-ID: <CAKT0JB6wuw710qdJUw6UJ0XXQg2B_73MaJVck=PivJjBcrXnDw@mail.gmail.com> In-Reply-To: <4F1FF2AD.9020003@FreeBSD.org> References: <4F0DE3FD.2020203@FreeBSD.org> <20120112121853.GC1429@procyon.xvoid.org> <4F0ED8D0.8080403@FreeBSD.org> <CAKT0JB5xP__9KacknmkT8_QrC1hsq8Gj5quRY_FvgmB=sJGmSQ@mail.gmail.com> <4F171D7A.4080003@FreeBSD.org> <CAKT0JB6u-b1CTcYVphLnEf-rHCmuSLJJFrYOiiqChJKDYtRHtQ@mail.gmail.com> <4F177979.5010106@FreeBSD.org> <CAKT0JB7k0V42w0WGN1mq4sKgQxqbnf_NoDRZAxPrMGebuvUH2g@mail.gmail.com> <CAKT0JB5zOjmy1R13W%2BbY453VySOkYcShpnHwk8kbT=-yAUC2vQ@mail.gmail.com> <CAKT0JB5xHJ7=UFHDhumsiMqfYGEPV6QyNz2YbHb%2BojOUgw23WA@mail.gmail.com> <4F1ACBA8.6000203@FreeBSD.org> <CAKT0JB7Z=pwv9oryCcu2OV7kHnkXjPj-cYY_=0c6PMbNF1BLTw@mail.gmail.com> <4F1EB305.9000105@FreeBSD.org> <4F1EDD3D.6070800@FreeBSD.org> <CAKT0JB5jAr6VP5Q9sBVG6hFrnn%2BWafEDWT43yKhdXJuWv4U8pw@mail.gmail.com> <4F1F31CA.5000507@FreeBSD.org> <4F1F34DB.9040405@FreeBSD.org> <CAKT0JB7KfOepO9C6dBx7TRoR4qDRQ3V=V69zz=9BFtWOwqhpMQ@mail.gmail.com> <4F1F412D.5040009@FreeBSD.org> <CAKT0JB4LbRPF2UjzPBSNSgRwpmuoyjMBs328-qG4XVJtm=WF7g@mail.gmail.com> <4F1FF2AD.9020003@FreeBSD.org>
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2012/1/25 Alexander Motin <mav@freebsd.org> > > Commenting it appeared not good, as at least mplayer doesn't sets channels > for AC3. That makes sound(4) use default 1 channel for AC3, that is > definitely not supported. I believe this should be better: > http://svn.freebsd.org/**changeset/base/230537<http://svn.freebsd.org/changeset/base/230537>; > > Also, as soon as sound(4) interprets 8 channel as 7.1 by default, I've > changed previous patch a bit to allow both "8.0" and "7.1" AC3 formats: > http://svn.freebsd.org/**changeset/base/230513<http://svn.freebsd.org/changeset/base/230513>; > > thank, i can set 8 channels without vchan now. > For me this at least doesn't break normal AC3 operation and when I hacked > mplayer to set 8 channels, I can see predictable codec configuration and > time in mplayer predictably running 4 times faster. Unluckily mplayer seems > doesn't support TrueHD passthrough to ckeck closer -- it always does > decoding. > > ok i think i found the problem: in http://svn.freebsd.org/changeset/base/230511 cchn is equal to 7 for me if i set SNDCTL_DSP_CHANNELS to 8. and it's why HBR bit is not set. it's confirmed in my /v/l/messages where chan_count=0x7: Jan 28 03:23:53 htpc kernel: hdac1: 24576Kbps of 92160Kbps bandwidth used Jan 28 03:23:53 htpc kernel: pcm4: PCMDIR_PLAY: Stream setup fmt=02800400 (7.1) speed=192000 Jan 28 03:23:53 htpc kernel: pcm4: PCMDIR_PLAY: Stream setup nid=4: fmt=0x1817, dfmt=0x0021, chan=0x0010, chan_count=0x07, stripe=1
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