[Encoder] Progress of audio-only encoding is not being correctly updated

[zeh]

Creating audio files work, but the progress bar doesn't reflect information like file size.

This happens because the log parser uses a RegEx that only understands video files:

frame=   46 fps= 43 q=0.0 size=       0kB time=00:00:00.00 bitrate=N/A dup=18 drop=0 speed=   0x

Instead, it needs to understand audio files as well:

size=     848kB time=00:03:36.94 bitrate=  32.0kbits/s speed=43.6x

We probably need to convert the parser to make it smarter - instead of using a fixed RegEx, use one for each field (or maybe make use of the safeSplit() function if it uses tabs to separate fields).

Requirements

• Understand and update the progress status when encoding new audio files

[zeh]

Fixed in 81d96e4.