ffmpeg/avconv bitstream filter options

[Jon Davies]

On 17 April 2012 21:36, dinkypumpkin <dinkypumpkin at gmail.com> wrote:
> On 17/04/2012 18:31, Jon Davies wrote:
>>
>> Unrecognized option 'absf'
>> Failed to set value 'aac_adtstoasc' for option 'absf'
>> INFO: Command exit code 1 (raw code = 256)
>
>
> I checked this Libav version on Debian Wheezy, and it works as before if
> avconv is invoked as "ffmpeg" (there is a wrapper installed).  If invoked
> directly as "avconv", you get the warning above.  I don't have Ubuntu
> Precise to hand at the moment, but I would expect it to work the same. If
> you can confirm this behaviour, would it work for the PPA build to call
> ffmpeg rather avconv, at least for the initial release?

I can confirm that invoking avconv as ffmpeg works as you describe on
Precise.  So the solution for precise is to make sure it calls ffmpeg.
 (I'd mistakenly believed that calling avconv worked too, and I'm
pretty sure when I tried it a few weeks ago it did.  never mind.)
This also ensures that the get_iplayer script itself remains (pretty
much) unchanged from the original, so hand-updating just get_iplayer
won't break.

this pushes the problem out to something to be considered in due
course, before the backwards compatibility gets pulled. Whenever that
might be.

Chris Davies asked:
> Are there enough of us running non-Ubuntu systems to have to cater for us, too?
I'd say yes, but as long as the debian package maintainers don't try
to use avconv directly (which they haven't, only I was stupid enough
to try ;-) there won't be a problem.

thanks for your help
Jon