.ogg not exporting when using single channel

[JableSoHo]

Im trying to export an ogg using single channel, but it breaks on the following command :
debug: Start export format=ogg
debug: Spawn cmd=ffmpeg -y -ar 22050 -ac 1 -f s16le -i /var/folders/2g/mnz3cs295mx9hrx7l9y3c3640000gp/T/audiosprite.3490381531883031 -acodec libvorbis -f ogg -ab 128k baseGameSound.ogg

It does however work when I do not use single channel.

[tonistiigi]

What is the error message when you just manually run the ffmpeg command?

[JableSoHo]

This is what I am getting :
Input #0, s16le, from '/var/folders/2g/mnz3cs295mx9hrx7l9y3c3640000gp/T/audiosprite.3490381531883031':
Duration: 00:01:57.20, bitrate: 352 kb/s
Stream #0:0: Audio: pcm_s16le, 22050 Hz, 1 channels, s16, 352 kb/s
[libvorbis @ 0x7f8a53845400] encoder setup failed
Output #0, ogg, to 'baseGameSound.ogg':
Stream #0:0: Audio: vorbis, 0 channels, 128 kb/s
Metadata:
encoder : Lavc56.26.100 libvorbis
Stream mapping:
Stream #0:0 -> #0:0 (pcm_s16le (native) -> vorbis (libvorbis))
Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height

[JableSoHo]

Does this help at all?

[tonistiigi]

I'm not quite sure what may be the issue here. Can you also post your platform and ffmpeg and libvorbis version.

This thread https://stackoverflow.com/questions/28626506/error-while-converting-mp4-to-ogg-usr-bin-ffmpeg-invalid-argument (very last comment from LordNeckbeard) suggests its a difference between vorbis and libvorbis. That may be the case because when I run your example I get Stream #0:0 -> #0:0 (pcm_s16le -> libvorbis) where you get Stream #0:0 -> #0:0 (pcm_s16le (native) -> vorbis (libvorbis))

[ottokart]

Adding "-ac 2" solved a similar problem for me.
This was suggested in a comment "That's not the same error at all?! Your new error is telling you that the Vorbis encoder only supports audio with 2 channels, but your input file only has a mono audio stream. You need to convert the mono channel to stereo, using -ac 2. – DarkDust Feb 20 '15 at 10:39" from the linked stackoverflow question.