-ss before input does not provide proper output

[ryonsabouni]

Summary of the bug: When using -ss seek option before input file, seeks to correct spot BUT freezes the last video frame so that the output file is the same length as the input file. The audio is cut correctly, but the video is not.
How to reproduce:

% ffmpeg -ss 00:00:xx -i input.mp4 -c copy output.mp4
ffmpeg version 4.0
built on mac

[ryonsabouni]

ffmpeg -report (removed repetitive lines to decrease file size)

[llogan]

-ss 3s is invalid syntax. Use -ss 3 or -ss 00:00:03.

[ryonsabouni]

Replying to llogan:

-ss 3s is invalid syntax. Use -ss 3 or -ss 00:00:03.

yes it is. try it. Using 3 or 00:00:03 produces the same exact output, I have tried this many times

[Carl Eugen Hoyos]

Please test current FFmpeg git head and please provide the input sample.

[ryonsabouni]

Replying to cehoyos:

Please test current FFmpeg git head and please provide the input sample.

Double checked that I had git head installed and ran again. Same error. This error happens with any mp4 but I have now provided a sample mp4 that can be used.

This error occurs when using 00:00:03, 3 or 3s as a seek argument. 3 is simply there as an example. Any amount of time will not provide proper output.

[ryonsabouni]

new ticket with bettter formatting and input/output files in the works