I would like to try to replicate this. Andrew, could you send just me the exact file you are using or is it already on your website that I can download it easily? I do not see this problem with the tvbars I have yet.

On Tue, Dec 23, 2025 at 12:19 AM Andrew Randrianasulu <randrianasulu@gmail.com> wrote:

I was playing with tvbars.ogg
It goes from 2077 to 2099

But if you load it with Theora decoder there will be extra black
frame near the end!

i deleted it while locking audio.

If you go with default ffmpeg decoder - last frame will be black!

If i render corrected theora-decoded file as v410/s32 QT - I got weird
diff between audio and video!

If I disable write_tcmd in qt format (muxer) option A and V finally
same length and video plays to 2099 framecount (on screen)

But audio still few frames short!

Anyone can replicate such strangeness?