Dependencies broken

[temp]

When installed with composer --prefer-lowest, the unit tests fail.

Examples:

• Class 'Symfony\Component\Process\ProcessBuilder' not found
• Class 'Symfony\Component\Process\ExecutableFinder' not found

Dependency to symfony/process should be at least raised to ^2.1.

[edigu]

Any updates on this? IMO dependencies are broken even if you did not pass the --prefer-lowest arg.

As a dev who use PHPFFMPeg probe in a project, I noticed the trigger_error deprecation warning recently and start investigating.

• FFProbeDriver::load calls the Alchemy\BinaryDriver\AbstractBinary::load
• Then the ProcessBuilderFactory steps in and creates a symfony process builder in constuctor
• ProcessBuilder is simply not available after the release of symfony/process::v3.4
• There is no ProcessBuilder exist in symfony 4 or above.

This is an interesting issue, I could not decide if I should raise an issue on php-ffmpeg side or here at the beginning. Seems like even in latest version of this binary driver library, ProcessBuilder factory is assuming that ProcessBuilder is always exist which is wrong. IMO further investigation is needed since composer.json allows symfony 4 with a missing builder dependency.

[edigu]

Oh. I found this issue which is highly related: https://github.com/PHP-FFMpeg/PHP-FFMpeg/issues/689