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In Reply to: RE: cMP - the open source high-end Memory Player posted by cics on December 30, 2007 at 05:42:01
My initial aim has been to build a HTPC capable of playing 2ch music and 5.1 movies at the best possible level.Like many others I have built a PC following cics's "The Art of Building (AOB) Computer Transports” version 0.3 and cMP Installation Guide & User Manual documents. I followed the notes closely and implemented almost all settings.
I employ a LynxTwo-B card. Through the use of Thuneau's Allocator as XO, Jack Audio Kit, J River MC and ASIO driver (with the help of a few inmates to whom I am grateful) I managed to active bi-amp my speakers for 2ch listening, although not in cMP mode. The use of ASIO is recommended by cics's notes and...well, almost everybody.
I would also like to keep the above two main speakers configuration for multi-channel listening as Front-L/R, because it would be unpractical to recable for movie playback. cMP's Installation Guide in its Sample HTPC chapter briefly mentions that "given its open architecture, cMP can be used successfully for playing movies. Excellent results have been gained using Power DVD." I have tried that unsuccessfully - I must say, however, that I was not in cMP mode.
It seems to me that all DVD/movie players around employ DirectSound whereas for the aforementioned software I require ASIO. The only player that comes close to it, and yet so far, is VLC with its supposed compatibility with PortAudio. Unfortunately - from the voice of one of the developers - "the PortAudio used in VLC might be built without Jack support. AFAIK ASIO support is also missing from portaudio used in VLC."Does cMP manage to play movies through ASIO which is normally used in its music delivery? The fact that an ISO file is loaded into memory shouldn't make it capable of playing through ASIO...
Please give me any kind of help for reaching movie playback... Otherwise, after putting a lot of time, money and effort, I will have to give up on active bi-amping and digital XO which was one of the main reasons for building a cMP-like HTPC in the first place.
I thank you in advance for your help and, above all, for this project and everybody who put effort into it.
Edits: 05/27/09Follow Ups:
Hi Bibo01,
In advance of an expert reply from cics:
cMP is not a player - it is in effect a shell programme which removes unwanted XP services, loads the chosen file into memory and launches the appropriate player e.g foobar 2000 or cPlay for music
It is cPlay which requires an ASIO interface to work - not cMP. The cMP options menu allows you to nominate RAM load or not and identify which services you suspend when in cMP mode.
Follow the guidelines and modify the .pth file to nominate your player for dvd's. Do not forget cMP works from cue files.
good luck
Yes, I was aware of that.
Sorry, I did not express myself properly.
Does cMP manage to play movies through ASIO which is normally used in its music delivery? The fact that an ISO file is loaded into memory shouldn't make it capable of playing through ASIO...
cMP will not dictate audio output settings. I use a separate cMP for DVDs with 1TB of storage. In your case, you could use one cMP but this would require switching players (via .pth) file for Music and Movies. Your idea of using ASIO is very good if only you can find a DVD player that supports ASIO. This way, main L&R channels remain as is whilst additional channels are used for movies. You may want to look into Zoom Player.
Also, do not RAM load ISO files - they way too large.
cics,
You as developer of cPlay, is a multi-channel version of cPlay totally impossible supporting therefore ASIO? :)
I suppose you get into a labbyrint of A/V codecs...
I am prepared to switch players for Music and for Movies.
Unfortunately, as you say "Your idea of using ASIO is very good if only you can find a DVD player that supports ASIO".
That is a huge "ONLY".
It means that Music player would use ASIO and Movie player would use DirectSound. It also means that my 2ch configuration - bi-amp + digital XO - is not feasable.
I did have a look at Zoom Player, but it does not support ASIO. Actually, other people requested it but developers do not seem too interested in that.It looks like I have reached the end of the road! :((
I am now looking into the possibility of entering the PC with an external DVD player and come out through ASIO...I wander if it is possible?!
Edits: 05/28/09
J River media centre has ASIO output with DVD's.
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