[FFmpeg-devel] [RFC] Filters loglevel

Nicolas George nicolas.george at normalesup.org
Fri Jul 13 17:47:16 CEST 2012

Le sextidi 26 messidor, an CCXX, Stefano Sabatini a écrit :
> Trying to rationalize the meaning of INFO... it means something which
> should be part of the "normal" output, and that is supposed to be read
> by the user (as opposed to the developer). So yes all in all the
> output of the kind:
> [Parsed_boxblur_0 @ 0x30ef7b0] luma_radius:1 luma_power:1 chroma_radius:1 chroma_power:1 alpha_radius:1 alpha_power:1 w:320 chroma_w:160 h:240 chroma_h:120
> really belongs to "verbose" or "debug".
> Also note that we request the user to use -loglevel 99 when sending
> reports, and I don't think that cluttering the output *in each case*
> for helping reports from users which discard that directive is a good
> idea (since it will do harm to *all* users indiscriminately).
> Regarding the log colors, I assume that they are not always available
> and I like to comply to the "unconditional usability/accessibility
> principle", which states that the behavior of the program should be as
> usable/accessible as possible without relying on facilities which may
> not be available (also think about a daltonic user).

I agree with all you wrote here, and I think that lowering the loglevel of
the filters is a good idea. At least for the ones I maintain you can go
ahead. Thanks.


  Nicolas George
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