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[patch] hdmi multichannel

OP lucize

27th May 2014, 09:25 AM   |  #1  
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with this patch you can have multichannel output over hdmi, it is based on ffmpeg to decode the multichannel sound and send it as pcm. Also Apollo can bitstream the sound file (dts/ac3 wav files, maybe flac too as multichannel pcm).
on my AVR the center is swapped with LFE, please test and let me know if is working for you.
the sourcecode is on cyanogenmod gerrit but until now is no merged so I compiled the files, this patch also contains ffmpeg 2.2.2 vs 2.1.4

01.07.2014 - updated for cm nightlies 4.4.4, still LFE bug

Regards
Attached Files
File Type: zip multichannel.zip - [Click for QR Code] (5.71 MB, 26 views)
File Type: zip multichannel-4.4.4.zip - [Click for QR Code] (5.72 MB, 16 views)
Last edited by lucize; 1st July 2014 at 12:39 AM.
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28th May 2014, 07:36 PM   |  #2  
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Thanks lucize...amaizing!!! I'll try it this weekend!
24th June 2014, 01:37 AM   |  #3  
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Hello, I have a Motorola atrix 2 running an unofficial version of slimkat. based on android 4.4.3, and I have two questions

1. have you fixed the swapped center/lfe channels yet?

2. did you mean cyanogenmod that is 4.4.2 based or an older version.

I'm gonna test it now, I've got backups of my system already, gonna flash it seeing that the droid 4 is the same chipset and slightly faster. I'll report back whether or not multichannel partially works, if at all.
24th June 2014, 09:18 AM   |  #4  
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Quote:
Originally Posted by Gizoid1337

Hello, I have a Motorola atrix 2 running an unofficial version of slimkat. based on android 4.4.3, and I have two questions

1. have you fixed the swapped center/lfe channels yet?

2. did you mean cyanogenmod that is 4.4.2 based or an older version.

I'm gonna test it now, I've got backups of my system already, gonna flash it seeing that the droid 4 is the same chipset and slightly faster. I'll report back whether or not multichannel partially works, if at all.

is for images that already have ffmpeg in them (i made the patch small, didn't include all the files so it would be functional for earlier versions), if hdmi is working the multichannel should work, didn't had the time to investigate further about center/LFE but I think ffmpeg extractor is the fault.

I'll make a 4.4.4 patch ASAP

Regards
1st July 2014, 04:39 PM   |  #5  
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Quote:
Originally Posted by lucize

is for images that already have ffmpeg in them (i made the patch small, didn't include all the files so it would be functional for earlier versions), if hdmi is working the multichannel should work, didn't had the time to investigate further about center/LFE but I think ffmpeg extractor is the fault.

I'll make a 4.4.4 patch ASAP

Regards

Thanks for great work
4th August 2014, 05:09 PM   |  #6  
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so based on this
http://www.spinics.net/lists/linux-omap/msg108750.html
quote: " Also there is still probably something wrong with
speaker mapping of multi-channel streams."
there is hope that channel mapping will be fixed sometime in the near future.

Regards
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