Bug#721026: renpy: FTBFS with libav 9: error: unknown type name 'ByteIOContext'

[Moritz Muehlenhoff]

Sebastian Ramacher wrote:
> Source: renpy
> Version: 6.13.12-1
> Severity: serious
> Tags: sid jessie
> Control: block 706798 by -1

Fixed upstream in 6.15.5:  http://www.renpy.org/doc/html/changelog.html

| Ren'Py now builds with and requires the current version of libav. It should 
| also work with current versions of ffmpeg when libav is available.

Cheers,
        Moritz