Re: audio/L16
John Stirling <[email protected]>
| Newsgroups | gmane.comp.multimedia.helix.devel |
|---|---|
| Message-ID | <[email protected]> |
I've been tracking this down today. Not quite worked it out, but getting closer.. A mimetype of audio/L16 seems to end up in aufformat. It then fails in there due to lack of a valid header. If I hard code the sample rate etc in aufformat then the file can play (via pcm/renderer). A mimetype of audio/L16;rate=48000;channels=2 just ends up with a NO_RENDERER/FILEFORMAT error presumably because it checks for a match against the complete mimetype string rather than just the stuff before the ';'. So, I think I need to make the extended mimetype result in the aufformat being loaded and then I need to extract the sample rate etc from the stuff after the ';'. Does that sound correct ? Also, if you think that should be supported already let me know as I can't see it. John Eric Hyche wrote: > John, > > I would think these streams should play in > datatype/wav/pcm/renderer. > > Eric > > ============================================= > Eric Hyche ([email protected]) > Technical Lead > RealNetworks, Inc. > > >> -----Original Message----- >> From: [email protected] >> [mailto:[email protected]] On >> Behalf Of John Stirling >> Sent: Tuesday, June 10, 2008 4:57 AM >> To: [email protected] >> Subject: Re: [Helix-client-dev] audio/L16 >> >> fyi - some sample mime types returned by the dlna tester: >> >> audio/L16;rate=48000;channels=2 >> audio/L16;rate=44100;channels=1:DLNA.ORG_PN=LPCM;DLNA.ORG_FLAG >> S=81100000000000000000000000000000 >> audio/L16;rate=44100;channels=2:DLNA.ORG_PN=LPCM;DLNA.ORG_OP=01 >> >> >> John Stirling wrote: >> >> We need to be able to play audio/L16 content (for DLNA >> compliance). >> >> A sample file is here: >> http://copper.reciva.com/audiofiles/B-LPCM-1.pcm >> (obtained via http://issues.simplecenter.org/browse/SC-1074) >> >> Would you expect helix to be able to play this content >> ? If so, is there any HELIX_FEATURE we might be missing ? >> >> I can see audio/L16 referenced in the code, but haven't >> dug much further than that. >> >> We have audplin.so built and can play .au, .wav, .aiff content. >> >> https://datatype.helixcommunity.org/ >> only mentions: >> >> >> * Uncompressed PCM from .wav, avi, .aiff or .au >> files and standard RTP streams >> * PCM a-law and u-law from .wav, avi or .au files >> and standard RTP streams >> >> >> John >> >> >> >> >> >> >> >> ________________________________ >> >> >> _______________________________________________ >> Helix-client-dev mailing list >> [email protected] >> >> http://lists.helixcommunity.org/mailman/listinfo/helix-client-dev >> >> >> >> >> > > _______________________________________________ Helix-client-dev mailing list [email protected] http://lists.helixcommunity.org/mailman/listinfo/helix-client-dev