[Icecast] can't stream Opus in CAF format

[Marvin Scholz]

Hi,

the CAF format is not stremable due to the way the format works.

On 14 May 2020, at 4:42, webmaster at berean-biblechurch.org wrote:

> Using FFmpeg, I can stream to a file on disk okay:
>     c:\apps\ffmpeg\bin\ffmpeg.exe -f dshow -i audio="Line In (Realtek
> High Definition Audio)" -c:a libopus -ac 1 -b:a 32000 live.caf
>
> But, if I add Icey metadata, FFmpeg throws errors:
>     c:\apps\ffmpeg\bin\ffmpeg.exe -f dshow -i audio="Line In (Realtek
> High Definition Audio)" -c:a libopus -ac 1 -b:a 32000^
>  -ice_name "live broadcast" -ice_description "desc"^
>  -ice_genre "genre" -ice_url "https://stream.example.org/live.caf"
> -user_agent "agent" -content_type "audio/x-caf"^
>  icecast://source:hackme@localhost:8000/live.caf
> [caf @ 00000204b419ac80] Muxing variable packet size not supported on
> non seekable output
> Could not write header for output file #0 (incorrect codec parameters
> ?): Invalid data found when processing input
> Error initializing output stream 0:0 --
>
> Any idea why the destination of Icecast makes a difference?  Is there
> something I can adjust in Icecast to make it work?
>
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