Date: Sat, 21 Jan 2012 16:50:55 +0200 From: Alexander Motin <mav@FreeBSD.org> To: =?ISO-8859-1?Q?Micka=EBl_Maillot?= <mickael.maillot@gmail.com> Cc: freebsd-multimedia@freebsd.org, FreeBSD current <freebsd-current@freebsd.org> Subject: Re: [RFT] Major snd_hda rewrite Message-ID: <4F1AD0CF.8080002@FreeBSD.org> In-Reply-To: <4F1ACBA8.6000203@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>
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On 01/21/12 16:28, Alexander Motin wrote: > On 01/21/12 15:17, Mickaël Maillot wrote: >> So i tried DTS-HDMA and Dolby TrueHD without success. >> when i play DTS-HDMA, my receiver display DTS-HR and seams to play dts >> core with lots of interruptions. >> and when i play TrueHD, my receiver display TrueHD but doesn't play >> anything. > > From that description I can conclude that you are passing through > compressed DTS-HD and TrueHD streams to the receiver. What are the > bitrates of streams you are playing? It looks like your receiver doesn't > receives all data. If I understand right, to transfer with compressed > bitrates above 6.144Mbps special High Bit Rate mode should be activated > in CODEC, when data stream occupies all 8 HDMI channels instead of 2. I > haven't implemented this feature yet as my receiver doesn't support such > HD formats. > > I'll try to make a patch for it a bit later and send you to try. Until > that time, is it possible to make your xbmc to decode those HD streams > into different number of uncompressed LPCM channels to play it that way? > It would be interesting to test 6.0, 6.1, 7.0 and 7.1 LPCM > configurations with your receiver. Or at least normal definition 7.1 > playback would be interesting to test (you can just set vchanformat to > s16le:7.1 or s32le:7.1 and play anything). I mean "play anything uncompressed". >> and sysctl show: >> dev.pcm.4.play.vchanmode: passthrough >> dev.pcm.4.play.vchanrate: 192000 >> dev.pcm.4.play.vchanformat: ac3:2.0 >> >> i tried without vchan with same results. >> >> i can't set more than 2 channels for my hdmi output (dsp4), i want to >> set 8 channels like alsa does. > > What do you mean that you can't set more then 2 channels? I've never > tried to set ac3 format with more then 2 channels, but s16le:7.1 and > s32le:7.1 should work fine. At least s16le:5.1 and s32le:5.1 are working > perfectly for me. For HDA 24bit samples stored in memory as 32bit, so > setting s24le format only cause extra 24->32bit conversion. > >> i never show things like PCMDIR_...: Stream setup.... in my messages, so >> may be i use oss wrongly. > > They are printed only when hw.snd.verbose set to 4. > >> you can find the source code of xbmc used to play losseless file here: >> https://github.com/Fneufneu/xbmc/blob/freebsdAE/xbmc/cores/AudioEngine/Sinks/AESinkOSS.cpp >> >> >> and my dmesg: http://fneufn.eu/freebsd/dmesg.verb.htpc.20120121.txt > -- Alexander Motin
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