Your machine's H.264/HEVC encoders report support and then emit no video
samples at all, which no configure-time check can see. The optimizer now
test-encodes three frames per codec (cached for 30 days), shows the result
as diagnostics in the modal (AVC x / VP9 (hardware) / ...), feeds the
working codecs to the worker so Auto tries them first, and tells you to
switch to WebM when a container has no usable encoder.
Video quality is now a 10-100 slider with a predicted bitrate and size
for this clip (mirroring Mediabunny's mapping), which makes the trade-off
visible instead of guessing from presets.
JakeBreath
01b9a6181a