[FFmpeg-user] How to extract 1 frame as JPEG per minute

[Ulf Zibis]

Hi,

Am 20.12.18 um 01:20 schrieb Carl Eugen Hoyos:
> 2018-12-20 1:18 GMT+01:00, Ulf Zibis <Ulf.Zibis at gmx.de>:
>> With corrected select I still get 1 black picture and CYD_002.jpg is
>> frame 00:00:54, and so I still get 77 instead 76 pictures.
> Command line and complete, uncut console output missing / I
> suspect your video does not start at "0".
Now I found the real reason for the problem. ffmpeg 3.44 (current Ubuntu
version) says for my mp4 file:
  Duration: 01:16:20.42, start: -0.120000, bitrate: 1403 kb/s

but the latest static buils says:
  Duration: 01:16:20.42, start: 0.000000, bitrate: 1403 kb/s

With this I get CYD_002.jpg from exactly frame 00:01:00

so there is no worry about "I suspect your video does not start at "0".".

-Ulf