I need a command fo play 3D SBS video on URL using ffplay and some flags to merge two sides of video left eye right eye in 1 video stream

To play a 3D SBS (Side-by-Side) video from a URL using ffplay and merge the two sides into one video stream, you can use the following command:

ffplay -i <URL> -vf "[in]split[left][tmp];[tmp]crop=iw/2:ih:0:0[right];[left][right]hstack"

Replace <URL> with the actual URL of the 3D SBS video you want to play.

This command uses the ffplay tool to play the video and applies a video filter graph (-vf) to split the input into two streams: left and right. It then crops the left stream to half of its width and keeps the full height. Finally, it horizontally stacks the left and cropped right streams together into one video stream.

Note: Ensure that you have FFmpeg and ffplay installed on your system for this command to work