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

To play a 3D SBS (Side-by-Side) video from a URL using ffplay and merge the two split sides into one stereo 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]pad=iw*2:ih:0:0[left];[left][right]hstack"

Here's a breakdown of the flags and filters used in the command:

• -i <URL>: Specifies the input video URL.
• -vf: Applies a video filter chain to modify the video stream.
• "[in]split[left][tmp];": Splits the input video stream into two parts, storing the left side in [left] and a temporary copy in [tmp].
• [tmp]crop=iw/2:ih:0:0[right];: Crops the temporary copy ([tmp]) to keep only the right side of the video.
• [left]pad=iw*2:ih:0:0[left];: Pads the left side ([left]) to double its width, creating space for the right side to be merged.
• [left][right]hstack: Horizontally stacks the left and right sides together, merging them into one stereo video stream.

Make sure to replace <URL> with the actual URL of your 3D SBS video