[FFmpeg-user] Audio sample format in alsa?

[Nicolas George]

Simon Roberts (12020-06-30):
> I get:
> [alsa @ 0x55ac7254fd80] cannot set sample format 0x10000 2 (Invalid
> argument)
> hw:1,0: Input/output error

This message could be made better. This is s16le, which should be the
most common format, but we never know.

> But I'm not sure where to start with configuring this sample format. Can
> someone point me in the right direction? I didn't find much in the alsa
> section of the online manual.

ALSA can be tricky. I suggest you try first to use the card with aplay,
fiddling with -f to find what format it supports. And then, when it
works, transpose this into ffmpeg options.

Or you could let ALSA make automatic conversions by using plughw instead
of hw.

Regards,

-- 
  Nicolas George
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