[FFmpeg-user] Number of frames decoded not = number of frames encoded

Carl Eugen Hoyos ceffmpeg at gmail.com
Fri Nov 22 15:53:53 EET 2019

> Am 22.11.2019 um 13:01 schrieb <hydra3333 at gmail.com> <hydra3333 at gmail.com>:
> time=00:00:04.44 bitrate=1889.4kbits/s dup=25 drop=0 speed= 8.7x    

Audio and video do not have identical start times in your input file (this is normal for transport streams). Our mov muxer does not support variable frame rate, therefore frames have to be duplicated in the output to achieve A/V sync.

For future questions: Please try (hard) to simplify your command lines and generally, please only post FFmpeg command line and console output, other console output nearly always leads to a lot of confusion.

Carl Eugen

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