Piping in an MP4 v1 [ISO 14496-12:2003] results in `Magick: abort due to signal 6 (SIGABRT) "Abort"...`

[austinliuigi]

Description

I ran into an issue where trying to pipe in an mp4 file resulted in an abort. However, using the file as a direct argument to timg works fine. The mp4 file in question was made using wl-screenrec to record my screen.

$ wl-screenrec -f video.mp4
...

$ file video.mp4
video.mp4: ISO Media, MP4 Base Media v1 [ISO 14496-12:2003]

$ timg -V video.mp4
... # works!

$ cat video.mp4 | timg -V -
Magick: abort due to signal 6 (SIGABRT) "Abort"...

I tried another mp4 file that was in a different format and it worked both directly and piped into timg.

I'm not sure what's going on but thought I would report it in case you have any ideas. Thanks for the great software!