6
votes
Accepted
4:3 video has 720x480 resolution
There are 2 different things:
The real width and height of frames (in pixels) – see the green part of the following picture.
The displayed width and height (during the playback) – see the blue part ...
- 1,592
5
votes
4:3 video has 720x480 resolution
525/60 digitized SD video according to Rec. 601 is indeed 720 pixels wide, 480 pixels high, including some blanking on the sides. Digital equivalent of 625/50 is 720x576. In both cases, frame aspect ...
- 494
5
votes
Resizing a video in Premiere without scaling
Create a sequence that is 720x720, drag the clip on to the timeline, and in the canvas window use the arrow tool v to double click the layer which brings up the layer controls. Position it the way you ...
- 19.4k
4
votes
Accepted
In what aspect ratio shoud one record with a DSLR?
When you take a photo with a Modern camera "usually" it's 4/3, I know you can change the aspect ratio, but that's not my point. I assume, that the sensors of DSLR cameras are the same ratio, because ...
- 5,452
4
votes
How to make video play with correct aspect ratio
For a H264 stream, use the h264_metadata bitstream filter
ffmpeg -i in.mp4 -c copy -bsf:v "h264_metadata=sample_aspect_ratio=4/3" out.mp4
- 33.6k
3
votes
Accepted
Best strategy to keep aspect ratio consistent for all videos having any resolution
If you want the output resolution to be 1280x720 and the video keeps its original ratio aspect as well:
ffmpeg -v error -stats -i input -vf
"scale=1280:720:force_original_aspect_ratio=1,pad=1280:720:...
- 46
3
votes
How to concatenate multiple videos while maintaining original aspect ratio?
how can I concatenate different videos while maintaining the original quality and aspect ratio?
using concat demuxer
Make text file containing:
file '1.mp4'
file '2.mp4'
Run ffmpeg:
ffmpeg -f ...
- 10.2k
2
votes
Accepted
DVD not displaying full picture
You will need to work within the title safe areas when burning to DVD as depending on what the final player will be, there might be overscan which will/can crop anything out that is not within this ...
- 1,284
2
votes
How to convert a 2:21:1 video to 16:9 DVD using ffmpeg?
Having seen the sample, this is the command
ffmpeg -i in.avi -vf pad=720:576:0:144,setdar=4/3 -target pal-dvd out.mpg
The video is square-pixel, so scaling is not required. The frame should be ...
- 33.6k
2
votes
Accepted
Add border to video, maintaing aspect ratio, and insert subtitles in the border
You can use FFmpeg, a free command line tool to do this:
ffmpeg -i input.mkv -vf pad=1920:1080:0:140,subtitles=filename.srt -crf 20 -c:a copy out.mkv
The subtitles filter accepts ASS styling ...
- 33.6k
2
votes
Extending the size of the video shot on iPhone
Unfortunately, the screen is showing the whole frame. That is all that your camera recorded. It did not record anything to the left or right of what you see.
On YouTube, where many people shoot their ...
- 1,589
2
votes
Accepted
4:3 - 16:9 Aspect Ratio Conversion with Pillarbox and Textbox
A small bit on terminology :- SD and HD refers to resolution - in the basic sense of the word, not dimensions. A given video can be wide or tall or square while being SD or HD. It's the legacy of ...
- 33.6k
2
votes
Accepted
Sony Vegas Pro 12 - 4/3 video wrongly considered as 16/9
I did not manage to solve the source problem, but I found how to overcome the consequences.
It is indeed possible to edit the aspect ratio of the rendered video using ffmpeg:
ffmpeg -i <...
- 131
2
votes
Accepted
Merge Video with aspect ratio in FFMPEG
You need to use a canvas which can accommodate all inputs. To adapt this canvas during runtime, we can use the scale2ref filter.
ffmpeg -i video1 -i video2 -f lavfi -i color -filter_complex "[2][0]...
- 33.6k
2
votes
How to make video play with correct aspect ratio
If you want to change the Sample Aspect Ratio (aka Pixel Aspect Ratio) without reencoding use mkvmerge or mp4box:
mkvmerge
mkvmerge -o "out.mp4" --aspect-ratio-factor 0:4/3 "in.mp4"
mp4box
mp4box -...
- 441
2
votes
Accepted
Preview Aspect Ratio on Camera LCD Screen
Apply a screen protector to the LCD and use a permanent marker to draw the aspect ratio you want to frame for. Relatively inexpensive, easy to add, and completely safe for your screen. You may want to ...
- 2,404
2
votes
Horizontal to vertical video using ffmpeg
For the blur effect command, you needed to swap a few widths with heights then rescale it so the original video fits in properly above the blurred video:
ffmpeg -i input.mp4 -vf 'split[original][copy];...
- 21
2
votes
How to crop just 2 pixels without re-encoding (H264 video)?
You can use the h264_metadata bitstream filter.
ffmpeg -i in -c copy -bsf:v h264_metadata=crop_top=140 out
- 33.6k
1
vote
Preview Aspect Ratio on Camera LCD Screen
I assume you already checked the manual and there's no firmware option.
Well, the easiest way is to hide the excess areas with black electrical tape that you put directly on the screen after ...
- 1,421
1
vote
Best strategy to keep aspect ratio consistent for all videos having any resolution
To keep aspect ratio change:
-vf scale=640:360
-vf scale=1280:720
-vf scale=1920:1080
to:
-vf scale=-2:360
-vf scale=-2:720
-vf scale=-2:1080
See scale filter documentation for more info.
- 10.2k
1
vote
Accepted
Shooting in 4:3 Aspect Ratio
Use the frame guides built into whichever camera you use, and set the guides to 4:3. Both cameras you mention have them. When you're shooting, compose your image inside the frame guide. The camera ...
- 4,534
1
vote
FFmpeg issue with aspect ratio
Use
"[0:v]scale=iw*sar:ih,setsar=1,pad='max(iw\,2*trunc(ih*16/9/2))':'max(ih\,2*trunc(ow*9/16/2))':(ow-iw)/2:(oh-ih)/2[v0];[1:v][v0]scale2ref[v1][v0];[v0][v1]overlay=x=(W-w)/2:y=(H-h)/2[v]"
First, ...
- 33.6k
1
vote
4:3 source going to a 16:9 projector
our existing 4:3 song slides (1024x768)
The real resolution of a slide depends on the program and file format they are in. If the slides are in PowerPoint or similar, they have no native resolution, ...
- 1,202
1
vote
Why would you deliver a video in 1920x964?
I cannot think of a good reason why 1920x964. It is not uncommon to see 2:1 aspect ratios, which would be 1920x960. The extra 4 pixels are a mystery, especially because 960 divides by 8 and 16, ...
- 4,730
1
vote
Extending the size of the video shot on iPhone
This has already been mentioned above however scaling the video in the background roughly (300%) and adding a gaussian blur (soft) is common practice to achieve said effect.
- 21
1
vote
Accepted
What should my aspect ratio settings be for an Instagram ad?
It means that the ratio between the width and the height of the content (in pixels) should be the specified one.
Specifically, for a video you need to have an aspect ratio (technically, a DAR - ...
- 770
1
vote
change aspect ratio without stretching video ffmpeg
Have you tried uploading it to Youtube? Their player window will be a fixed 16:9 ratio (on YT.com), but they should accept source videos of any ratio, and simply center it in their window during ...
- 33.6k
1
vote
Why does 8K have 16 times the pixels compared to 1080p?
8K = 8000 x 8000, if 1:1. But you normaly have 16:9 for videos which is 7680 * 4320, since 7680 ≈ 8000, the width is rounded to 8K, if 9:16 aspect ratio, then the height is rounded to 8K.
7680 * 4320 ...
- 111
1
vote
Accepted
iOS - App To Change Aspect Ratio of a Video
Videon
It's a great app for the iPhone.
Not only does it have some great camera features; like stabilization, and manual exposure/WB, but you can also use it's post feature on any clip in your ...
- 2,487
1
vote
Accepted
How do I convert anamorphic hdv video to normal h.264 video with ffmpeg? How to ensure square pixels in output?
You can use a combo of the scale and setsar filters.
ffmpeg -i hdv-input.m2t -vf "scale=iw*sar:ih,setsar=1" -crf 28 -c:a aac -b:a 80k -ac 1 -movflags +faststart h-264-out.mp4
The scaler width to set ...
- 33.6k
Only top scored, non community-wiki answers of a minimum length are eligible