loudnorm provides stats output that's meant to be used for two-pass
normalization. These stats are often interleaved with ffmpeg's stream
descriptions and other output, making them difficult to parse and pass
to the second pass. The new stats_file option enables writing the stats
to a separate file, or to standard output, for simple parsing and other
programmatic usage.
Signed-off-by: Adam Jensen <adam@acj.sh>
Adam Jensen
059c57a83e