![]() If you're certain it's exactly 4:3, of course, just use 104:135. It could be 4:5, I suppose (very close to 104:135), but I don't know of anything that produces that pixel aspect ratio maybe try that first, and then try 3:4 if it still looks a little too stretched horizontally. ![]() every codec you’ve ever heard of, and many more you haven’t. Shutter Encoder makes use of FFmpeg to handle its encoding, allowing support for almost. It is designed to be fast, efficient and easy to use, making it the perfect choice for anyone who needs to quickly encode or decode digital media files. Shutter Encoder is one of the best video converter software, it handles images and audio too It has been designed by video editors in order to be as accessible and efficient as possible. It's 720 wide, which suggests a DVD source it's a 25 fps video, suggesting PAL, but the PAR works out to less than 1, suggesting NTSC. Shutter Encoder is a powerful and user-friendly software application that enables you to easily and quickly encode and decode digital audio, video and image files. If the source represents true SD NTSC pixels (in which case only the central 704×480 pixels are supposed to map to a 4×3 screen, with 8 pixels overscan on either side), the correct command would be: mp4box source.mp4 -out target.mp4 -par 1=10:11īecause (4/3) / (704/480) = 10/11 – exactly the reference pixel aspect ratio for standard definition NTSC video.įor the case given in the question, if it's really 4:3, that gives a very odd pixel aspect ratio: (4/3)/(720/416) = 104/135. For this case, you need: mp4box source.mp4 -out target.mp4 -par 1=8:9 (Equivalently, you're describing the aspect ratio of a source pixel.) For example, suppose you have a DVD source that's 720×480, and the correct display aspect ratio is 4:3. When you use -par stream-number=width:height, you define the pixel aspect ratio – that is, the result of dividing the device aspect ratio by the storage aspect ratio. With an -out parameter (so as not to disturb your original file): mp4box source.mp4 -out target.mp4 -par stream-number=width:height Delgado's answer is correct that MP4Box can do this, but the -par option doesn't work quite as described.
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