On 27/09/16 22:20, Emily Collins wrote:
> This isn't exactly a bug, so I didn't want to send a report of one, but I 
> encountered a 404 Not Found when trying to download some libav tools, that I 
> was hoping I could get a pointer with!  Apologies for the newbie question... 
> I'm not adept with running command lines in my terminal window, but I use the 
> DownloadHelper add-on in Firefox that required getting libav to convert 
> certain video formats.  As I have a Mac (OS 10.12), their suggestion was to 
> paste the following line in my terminal window in Homebrew:  brew install 
> libav --with-fdk-aac --with-ffplay --with-freetype --with-libass 
> --with-libquvi --with-libvorbis --with-libvpx --with-opus --with-x265
> I did that, and got various errors about tools not being installed and files 
> not being writeable.  Found what commands to type to fix it thanks to Google, 
> tried again, and it said it was installing all the necessary libav tools 
> (x264, xvid, libpng, freetype, fdk-).  All of them installing up to when it 
> got to libpng, at which point got:
> ==> Installing libav dependency: libpng
> ==> Downloading 
> https://downloads.sf.net/project/libpng/libpng16/1.6.16/libpng-1
> 
> curl: (22) The requested URL returned error: 404 Not Found
> Error: Failed to download resource "libpng"
> Download failed: 
> https://downloads.sf.net/project/libpng/libpng16/1.6.16/libpng-1.6.16.tar.xz
> 
> And now I'm not sure what command to give it next to try it again, since it's 
> hard to narrow down the answer in a search, or even know what kind of command 
> I'm looking for, being unfamiliar.  Would appreciate any pointers!

You might update homebrew since looks like the dependency libpng is
pointing to a wrong link.

brew update and try again =)

lu

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