[Vorbis-dev] ogginfo writes errors to stdout

[Conrad Parker]

On 18 March 2010 09:30, Ray Kohler <ataraxia937 at gmail.com> wrote:
> On Wed, Mar 17, 2010 at 8:22 PM, Conrad Parker <conrad at metadecks.org> wrote:
>> On 18 March 2010 04:16, Ray Kohler <ataraxia937 at gmail.com> wrote:
>>> The ogginfo tool writes its errors to stdout instead of stderr.
>>> Shouldn't that change? (Warnings also go to stdout, but that's more of
>>> a gray area.) The other vorbis-tools don't have this problem, with the
>>> possible exception of vcut, which writes the usage message to stdout,
>>> another edge case.
>>
>> I think it would make sense for operational errors (eg. file not
>> found, unreadable etc.) to go to stderr, and surely that's what's
>> happening with the other vorbis-tools. For conformance errors (ogg
>> framing, comment format, vorbis headers etc.) it might make sense to
>> write them to stdout so that they are part of the same output stream
>> as warnings and general info, ie. so they form a coherent report, and
>> aren't re-ordered.
>
> ogginfo uses its error() function for three cases:
> - can't open input file
> - don't know how to handle stream
> - not an Ogg file
>
> so it's a bit of a mixed case.

ok, I agree that at least the first two should go to stderr. The last
is a bit mu ...

Conrad.