Invalid audio stream error transcoding music files

[wickedlemon 6]

Playing music files if transcoding is required I'm getting the following error:

 

[flac @ 0x7f19d0] Invalid audio stream. Exactly one FLAC audio stream is required.
Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument

 

 

Here's an example ffmpeg command: 

/bin/ffmpeg -y -f ogg -i "/data/PI/Music/The Aquabats!/The Aquabats! 2011 Hi-Five Soup!/01 The Shark Fighter!.opus" -map 0:0 -vn -sn -c:a:0 copy -ar:a:0 48000 -ac:a:0 2 "/config/transcoding-temp/X86029F.flac"

 

I just end up with a zero size file in the transcoding temp directory.

 

If I remove flac as a direct stream codec from the profile to force transcoding it will transcode flac to flac with no problems and it creates a temp file ok. It just won't convert to a different codec. FLAC -> MP3 and OPUS - >MP3 also gave a similar error.

 

I've tried running the ffmpeg command on my PC directly and get the same error. If I remove"-c:a:0 copy" from the string transcoding works ok.

 

I'm not an expert with Ffmpeg, so does anyone know how I can fix this error in Emby?

 

ffmpeg-transcode-9194e8e0-c1dd-48b4-9d6b-1c5cf970173f_1.txt

[Luke 40114]

HI, how did you setup the dlna profile?

[wickedlemon 6]

2 hours ago, Luke said:

HI, how did you setup the dlna profile?

Custom Profiles + and then the settings based on other similar devices.

Yamaha.xml

[Luke 40114]

Can you provide a log example for converting to mp3? thanks.

[Luke 40114]

@wickedlemon ?

[wickedlemon 6]

On 23/10/2020 at 20:21, Luke said:

Can you provide a log example for converting to mp3? thanks.

Sorry for the delay.

Attached is an server log and a corresponding ffmpeg log.

embyserver (1).txt

ffmpeg-transcode-785cf50d-46b6-454c-90da-3bdb8664223d_1.txt

[Luke 40114]

@wickedlemon it's trying to convert to flac because that's what you put in your transcodingprofiles. try replacing it with this:

<TranscodingProfile container="mp3" type="Audio" audioCodec="mp3" estimateContentLength="false" enableMpegtsM2TsMode="false" transcodeSeekInfo="Auto" copyTimestamps="false" context="Streaming" minSegments="0" segmentLength="0" breakOnNonKeyFrames="false" />

That will set it back to the default of mp3 and then it should work.

[Luke 40114]

Did this help?

[Luke 40114]

@wickedlemon with Emby Server 4.6 I would suggest removing your custom profile and letting the server detect the supported formats of the device. It should just work now. Thanks.