ffmpeg and ac3 and aac

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ffmpeg and ac3 and aac

Postby bigcid10 » Sun Nov 26, 2017 11:16 pm

I'm very much a newbie at this ,sorry
all of my movies and tv shows are in aac or ac3 or both faudio formats
how cab I get this to work in 6.1.3 on dsm
I installed the separate ffmpeg from the community repository
Are there certain commands to input and where and how?
it says aac is experimental ,use
I have zero sound in movies
I don't know where to apply
'-strict -2'
Thank you

I need help with this and ghenry22 doesn't seem to want to help
or doesn't know ,one of the two

this is some of what the logs says

INFO FFmpegHlsSession-1627873398 Starting ffmpeg for hls: /usr/syno/synoman/webman/3rdparty/subsonic/transcode/ffmpeg -i /volume1/video/Blueray Movies/Kids Movies/Toy Story/Toy Story 3 (2010) BluRay 1080p AC3 HEVC-d3g.mkv -s 1280x720 -c:v libx264 -c:a aac -b:v 3000k -maxrate 3300k -b:a 96k -bufsize 256k -map 0:0 -map 0:1 -ac 2 -preset superfast -v error -force_key_frames expr:gte(t,n_forced*10) -start_number 0 -hls_time 10 -hls_list_size 0 -hls_segment_filename /usr/syno/synoman/webman/3rdparty/subsonic/hls/1627873398/%d.ts /usr/syno/synoman/webman/3rdparty/subsonic/hls/1627873398/out.m3u8
[11/14/17 4:09:51 PM EST] INFO InputStreamReaderThread (FFmpegHlsSession) [aac @ 0x1684e80] The encoder 'aac' is experimental but experimental codecs are not enabled, add '-strict -2' if you want to use it.
[11/14/17 4:09:51 PM EST] INFO InputStreamReaderThread (FFmpegHlsSession) [aac @ 0x1684e80] Alternatively use the non experimental encoder 'libfaac'.
bigcid10
 
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Re: ffmpeg and ac3 and aac

Postby bigcid10 » Fri Dec 01, 2017 10:02 pm

bump
bigcid10
 
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Re: ffmpeg and ac3 and aac

Postby toolman » Sat Dec 02, 2017 1:08 am

Hi
You can change or adjust the settings for the encoder in Settings >> Transcode.
There you can add the -strict -2 setting.
But I'm not familiair with playing video's in Subsonic because I only use Subsonic to play my music.
Perhaps searching this forum on terms like video-conversion or transcoding or take a look at http://www.subsonic.org/pages/transcoding.jsp.
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Re: ffmpeg and ac3 and aac

Postby fletchowns » Sun Dec 03, 2017 10:24 am

I was running into the same thing. No matter where I put in the -strict -2 the error would persist. I upgraded ffmpeg to 3.4 to resolve it.

I also finally found working video transcoding settings on the madsonic forums: http://forum.madsonic.org/viewtopic.php?t=20
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