Aurélio A. Heckert d84f1d14b5 Adds support for XviD output with extra parametrization
As the "LG Time Machine" (a (not so) smart TV) has a limitation for video dimensions (as for codecs), I take to implement an extra parameter `--pp-params` where we can send extra parameterization for the video converter (post-processor).

Example:
```
$ youtube-dl --recode-video=xvid --pp-params='-s 720x480' -c https://www.youtube.com/watch?v=BE7Qoe2ZiXE
```
That works fine on a 4yo LG Time Machine.

Closes #5733
2015-06-09 22:08:16 -03:00
..
2015-06-04 21:54:33 +02:00