Apple Lossless (ALAC) trancoding on Mac

General discussion about the media server. Feature requests. Hints, tips and tricks.
Locked
hrabeX
Posts:3
Joined:Mon Dec 27, 2010 7:33 pm
AV Hardware:Mac, Revo Heritage
Apple Lossless (ALAC) trancoding on Mac

Post by hrabeX » Mon Dec 27, 2010 7:40 pm

Is there any way to transcode ALAC to MP3? I've followed this thread http://www.twonkyforum.com/viewtopic.ph ... 50&start=0 , compiled newest ffmpeg from svn (ALAC support, ffmpegX has more than two years old build) but got stuck with config file:

original one from thread:
# transcode audio (flac to mp3)
# flac to mp3
exec: ffmpeg -ab 320k -i $infile $outfile
# capabilities
from=audio/x-flac
to=audio/mpeg
asynchronous
priority=idle

replaced with
from=audio/x-alac

MP3 transcoding is checked, but my REVO Heritage still has problem with decoding .

Any help is appreciated!

hrabeX
Posts:3
Joined:Mon Dec 27, 2010 7:33 pm
AV Hardware:Mac, Revo Heritage

Re: Apple Lossless (ALAC) trancoding on Mac

Post by hrabeX » Tue Jan 04, 2011 10:30 am

nobody knows?
support gives me no answer.
What is the right mime-type for Apple Lossless codec stored in m4a container? (Apple default?).
I've tried
audio/x-alac
audio/ale
audio/m4a
audio/x-m4a

but still get decode error on my Revo heritage/verified on iPhone UPnP Client - stil receiving Apple Lossless stream..:(

ffmpeg is configured, files are converted smoothly when launched manualy from command line with the same parameters like in desc file..

hrabeX
Posts:3
Joined:Mon Dec 27, 2010 7:33 pm
AV Hardware:Mac, Revo Heritage

Re: Apple Lossless (ALAC) trancoding on Mac

Post by hrabeX » Wed Feb 02, 2011 8:25 am

the best solution is ask support - but not in twonky case!
original question:
----
Hrabex, Dec-27 2010 09:31 (PST):
Customer Name: Hrabe Nakej

Is there any way to transcode Apple Lossless encoded files? I have huge library mainly in ALAC, but many UPnP player are not supporting this format.
Thanks.
---


I've discuss this problem with support guy named Sahil - FOR MORE THAN 5 WEEKS - He provides no valuable information, common and well known basics only - last mail (10 days after last reply) was following

-----
Sahil, Feb-01 21:15 (PST):
Hi,

As we dont provide support for transcording, but we give some basic info how to enable transcoding only.
So for any further information related to transcoding please visit http://twonkyforum.com

Regards,
Twonky Team.
----

I never seen this before - freeware developers are more kind than this clown.. :roll:

steven2583
Posts:8
Joined:Mon Mar 07, 2011 4:50 am
AV Hardware:QNAP TS-451+, OPPO 93 blue-ray player.

Re: Apple Lossless (ALAC) trancoding on Mac

Post by steven2583 » Mon Mar 14, 2011 7:01 am

I got flac coding work no issue with ffmpeg. ffmpeg running from linux command line works fine. What is the "from code" that twonky server calls the transcoder by for M4A? Apple lossless audio files. Whatever I try I can't get twonky server to execute ffmpeg.

ffmpeg-m4a-wav.desc

exec: ffmpeg -y -i $infile $outfile
# capabilities
from=audio/mp4
to=audio/wav
synchronous
priority=idle

transcoding.db

M4A,m4a,audio/mp4

Someone at twonky must have transcoded apple lossless (m4a) files.

I have an Oppo 93 but I'm doing my testing on through Windows Media play since I don't want to run down stairs every time? Do I need to change something in the client.db file?

Locked