fftools/ffmpeg: use sync queues for enforcing audio frame size

The code currently uses lavfi for this, which creates a sort of
configuration dependency loop - the encoder should be ideally
initialized with information from the first audio frame, but to get this
frame one needs to first open the encoder to know the frame size. This
necessitates an awkward workaround, which causes audio handling to be
different from video.

With this change, audio encoder initialization is congruent with video.

0 files changed, 0 insertions, 0 deletions