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

[Carl Eugen Hoyos]

2018-12-20 1:18 GMT+01:00, Ulf Zibis <Ulf.Zibis at gmx.de>:
>
> Am 20.12.18 um 00:07 schrieb Carl Eugen Hoyos:
>> 2018-12-19 22:17 GMT+01:00, Ulf Zibis <Ulf.Zibis at gmx.de>:
>>
>>> But with
>>> ffmpeg -i CYD.mp4 -r 1/60 CYD_%03d.jpg
>>> I got 78 pictures with good quality (~70 kB).
>>> Picture CYD_001.jpg and CYD_002.jpg were black, CYD_003.jpg
>>> was frame 00:00:53. Also a little weird, the video is 1:16:20 long.
>> This is the disadvantage of using "-r", select is more accurate.
>
> 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".

Carl Eugen