[FFmpeg-user] on frame changes in recode

[Carl Eugen Hoyos]

Hi!

> ffmpeg version 2.8.6-1ubuntu2

Generally, on this mailing list, only current FFmpeg git head is supported. 
(Among the reasons are that our man-power is limited and that we can only 
fix issues in current FFmpeg git head, non-security patches are normally 
not backported.)
There is also a bug tracker for FFmpeg on Ubuntu but you would likely be 
asked to test current FFmpeg there as well.

>   Stream #0:1 -> #0:1 (aac (native) -> aac (libvo_aacenc))

Another reason for using current FFmpeg git head is that we now have a 
better default aac encoder.

> frame=  666 fps=8.0 q=-1.0 Lsize=    2496kB time=00:00:22.20 
> bitrate=  920.6kbits/s

This status line indicates that no frame was dropped or duplicated while 
transcoding.
(Although I realize you didn't post your command line, it is possible to 
create command lines that drop and / or duplicate frames without showing 
anything suspicious in the status line.)

Feel free to provide an input sample.

Carl Eugen