Bug#785690: libav-tools: avprobe fail on file with colon in the name

[Jonas Smedegaard]

Quoting Petter Reinholdtsen (2015-05-19 13:46:16)
> 
> Control: severity -1 wishlist
> 
> [Jonas Smedegaard]
>> Hi Petter,
> 
> Hi, Jonas.  Thank you for the quick reply.
>
>> Deep down in the manpage for avprobe is mentioned that input isn't 
>> really bare filename but a URL, defaulting to file: protocol.
>>
>> Therefore a filename foo:bar is treated as resource bar via protocol 
>> foo.  To use filenames with colon you can explicitly state protocol 
>> as file:foo:bar.
>
> Right.  I did not know that.  Then I guess what I am asking for is a 
> nicer fallback when the protocol is unknown and the string matches an 
> existing file name.  In that case, I believe it make more sense to 
> open the file instead of giving an error about an unknown protocol.  
> It would for me be more according to the principle of least surprise.

Such changed logic is too invasive in my opinion: It would mean that a 
local file "hw:0" in current dir would break documented way of reading 
ALSA hardware device #0.

Seems better to me to treat this as a documentation issue: More 
consistently use the term URL instead of FILE, and move the note about 
default file: protocol closer to the top of the document.


> And I am happy to report that my problem indeed is solved by adding 
> file: in front of the file name:

Good to hear that :-)


 - Jonas

-- 
 * Jonas Smedegaard - idealist & Internet-arkitekt
 * Tlf.: +45 40843136  Website: http://dr.jones.dk/

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