Bug Report Cannot output WebM(opus) to file/URL with ffmpeg

[Philmist]

I tried to streaming/recording WebM(VP9+opus) with ffmpeg(OBS Studio 0.15.1).
Settings is here.

I pushed "Start Recording" button, but OBS Studio display this dialog and stop recording/streaming.

In logfile, I found this line.
"23:31:52.424: Failed to open audio codec: Invalid argument"

Sorry if I wrote bad English or do something bad.

 

[Alexufo]

what is strange symbols I see in file path?

 

[RytoEX]

what is strange symbols I see in file path?

Do you mean "￥"? It's the Japanese Yen symbol. When your system language is set to Japanese, some applications treat the backslash "\" as that symbol. It doesn't cause issues in most cases.

Despite the original post being a bit old...

I actually see the same behavior with current versions of Win10 (10.0.14393.82) and OBS Studio (0.15.4), even using matroska (MKV) as the container and libopus as the audio encoder. Using the latest FFmpeg from commandline to transcode a file to use libopus audio seems to work fine.

Setting the audio sample rate in OBS Studio to 48khz seems to let it record, but leads to an encoder overload, and then OBS Studio crashes when you stop recording. I've been trying to track down this behavior for a while, but it's possible that CPUs can't keep up with VP9+libopus as a live encoder? Might need someone more experienced to chime in here.

 

[Arimil]

I experienced this issue today, after having the audio issue fail to let me record I changed the sample rate to 48khz which results in a crash as soon as I hit record.