Ubuntu 18.10, running on intel haswell graphics.
Broken: 2.79 release from Ubuntu Apt. 2.8 build from 4th October had this problem as well.
Short description of error
When a video is passed through blender video editor, the detail is reduced(gets blurred), as if it is averaging 2x2 pixels for each one or something. The resolution in blender is identical to that of the video clip, so it should not do any scaling that could cause that. The resolution of my video is 2880x1080.
Exact steps for others to reproduce the error
Here is a frame after passing through blender:
Here's how it should look:
Open them in browser tabs and do Ctrl+tab between them to see the difference clearly - focus on the cars and road lines to see detail loss, also zoom in if screen resolution is lower than video.
Blend file and shortened video: