how to grab frames of an html5 h264 mp4 video?

[matteoraggi]

versions

• SlimerJS: Version 0.10.3
• Firefox:
• Operating system: ubuntu 14.04

Steps to reproduce the issue

Actual results:

Actually instead the video mp4/h264 into the htmI5 page see a white space instead of the video, then I tryed with an APNG but it capture only few frames..

Expected results:

grab every frame with 25fps and save them as png or jpeg images

[AndCycle]

well, you better try some alternative solution rather than screencapture, most no drm html5 video can be capture from direct download link or HLS with some assistant like youtube-dl or streamlink, you just take wrong approach to do that.

[matteoraggi]

thanks, but then I was able to grab the frames of the mp4 video embedded in the hml6, it is possible also with phantomjs..