Mrrrr's Forum (VIEW ONLY)
Un forum care ofera solutii pentru unele probleme legate in general de PC. Pe langa solutii, aici puteti gasi si alte lucruri interesante // A forum that offers solutions to some PC related issues. Besides these, here you can find more interesting stuff.
|
Lista Forumurilor Pe Tematici
|
Mrrrr's Forum (VIEW ONLY) | Reguli | Inregistrare | Login
POZE MRRRR'S FORUM (VIEW ONLY)
Nu sunteti logat.
|
Nou pe simpatie:
Nebunatyka pe Simpatie.ro
 | Femeie
23 ani
Bucuresti
cauta Barbat
23 - 73 ani |
|
Mrrrr
AdMiN
 Inregistrat: acum 18 ani
Postari: 2247
|
|
You need ffmpeg for this: or the latest build
To run the following command you must add the video to the same folder as ffmpeg, or you can refer to a path between " and ".
Now this depends on how the 3D/VR video is made.
For example, I have a stereoscopic 180-degree video (LR_180) where the left and right views are stored side by side.
The following command will extract the left view and output it as a normal 2D video.
1. Go to the folder containing ffmpeg.exe (eg. C:\ffmpeg\bin)
2. In the address bar, instead of the folder address type cmd and press enter to open a cmd window inside the ffmpeg\bin folder
3. Type the following command, replacing the video paths with your own:
| ffmpeg -i "D:\Folder_Name_Goes_Here\Video_name_goes_here_LR_180.mp4" -vf "crop=in_w/2:in_h:0:0" "D:\Folder_Name_Goes_Here\Video_name_goes_here_2D.mp4" |
-i "D:\Folder_Name_Goes_Here\Video_name_goes_here_LR_180.mp4" input video file
-vf "crop=in_w/2:in_h:0:0"
- crop: initiates the crop command
- in_w/2: takes half the width of the input video, which is the left view.
- in_h: keeps the full height of the input video.
- 0:0: these coordinates start the crop from the top-left corner of the video.
Note: for right side, use -vf "crop=in_w/2:in_h:in_w/2:0" where in_w/2:0 starts the crop from the midpoint of the width (where the right view begins)
"D:\Folder_Name_Goes_Here\Video_name_goes_here_2D.mp4"[/color] output video file
If you are using powershell you might need to add .\ in front of the above commands:
To also change the resolution of the video to 1080p, add the following part to the command line above:
| ffmpeg -i "D:\Folder_Name_Goes_Here\Video_name_goes_here_LR_180.mp4" -vf "crop=in_w/2:in_h:0:0,scale=1920:1080" "D:\Folder_Name_Goes_Here\Video_name_goes_here_2D.mp4" |
To also maintain aspect of the 1080p video, you can add the following part to the command line above:
| ffmpeg -i "D:\Folder_Name_Goes_Here\Video_name_goes_here_LR_180.mp4" -vf "crop=in_w/2:in_h:0:0,scale=1920:1080:force_original_aspect_ratio=decrease,pad=1920:1080:(ow-iw)/2:(oh-ih)/2" "D:\Folder_Name_Goes_Here\Video_name_goes_here_2D.mp4" |
To add bitrate you want for the converted video, you can add the following part to the command line above:
without aspect ratio:
| ffmpeg -i "D:\Folder_Name_Goes_Here\Video_name_goes_here_LR_180.mp4" -vf "crop=in_w/2:in_h:0:0,scale=1920:1080" -b:v 4000k "D:\Folder_Name_Goes_Here\Video_name_goes_here_2D.mp4" |
with aspect ratio:
| ffmpeg -i "D:\Folder_Name_Goes_Here\Video_name_goes_here_LR_180.mp4" -vf "crop=in_w/2:in_h:0:0,scale=1920:1080:force_original_aspect_ratio=decrease,pad=1920:1080:(ow-iw)/2:(oh-ih)/2" -b:v 4000k "D:\Folder_Name_Goes_Here\Video_name_goes_here_2D.mp4" |
For 360 degrees video, use the following ffmpeg command:
| ffmpeg -i input_360.mp4 -vf v360=equirect:flat output_2d.mp4 |
Source:
ChatGPT
_______________________________________
|
|
| pus acum 5 luni |
|