[FFmpeg-user] FLAC experience so far

[Paul B Mahol]

On Sun, Jun 8, 2025 at 11:31 PM Mark Filipak <
markfilipak.imdb-at-gmail.com at ffmpeg.org> wrote:

> The source: c:\01.WAV
> 620,398,844 bytes
>
> ffmpeg^
>   -i c:\01.WAV^
>   -map 0^
>   -c flac^
>   "c:\Manual Goettsching [1992] E2-E4.flac.m4a"
>
> Provoked: "Could not find tag for codec flac in stream #0, codec not
> currently supported in container".
>
> ffmpeg^
>   -i c:\01.WAV^
>   -map 0^
>   -c flac -compression_level 12^
>   "c:\Manual Goettsching [1992] E2-E4.flac.mp4"
> 405,530,095 bytes
>
> The above succeeded. It ran for a 3 or 4 minutes.
>
> ffmpeg^
>   -i c:\01.WAV^
>   -map 0^
>   -c flac^
>   -compression_level 12^
>   -lpc_type cholesky^
>   -exact_rice_parameters 1^
>   -multi_dim_quant 1^
>   "c:\Manual Goettsching [1992] E2-E4.flac .mp4"
>

Buy faster CPU.


>
> The above has been running for 43 minutes and has encoded 17 seconds of a
> 58 minute audio.
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