Allows for ffmpeg output settings to be set from a series of json config
files stored in video_formats. This allows for higher quality
output files with newer codecs (like av1), while still ensuring
compatibility with older ffmpeg versions
In addition to these changes, the logging of ffmpeg is better handled.
Error messages from ffmpeg itself are printed and logging from encoders
that was improperly filtered have been individually addressed.
While h265 has been included, most browsers will be unable to display
the resulting video.
Austin Mroz
582756ee75