So, we have a video frame of 720×240 but its being resized automatically by the player. SMplayer retains the horizontal measurements and resizes the vertical. It is always a bit hit and miss on how the player deals with the resizing. Have a read through this to read more on a few other examples! DAR refers to the viewable image dimensions, PAR refers to the physical dimensions of each pixel, and SAR refers to the number of horizontal versus vertical pixels. With digital, several types of aspect ratios exist: the display aspect ratio (DAR), the pixel aspect ratio (PAR) and the storage or sample aspect ratio (SAR). Here I have a piece of H264 Video playing in FFplay, I can see from the FFmpeg console that it has a 720×240 pixel size but with a SAR of 1:2 which results on a DAR of 3:2. FFplay retains the vertical size but reduces the horizontal by half
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