VLC Transform-Type Option With Images

[ph0rce]

Morning,

For a while now I have successfully been using the command line parameters to rotate videos via:

--video-filter=transform --transform-type=270

However I am now using VLC to display images as well as video files & have found that the above option doesn't work.

Is there any way to rotate an image via the command line?

Thanks,

James

[Rémi Denis-Courmont]

VLC treats images as still video. There is no difference. Maybe the pixel format cannot be rotated.

[ph0rce]

It seems as though it cannot rotate JPG files, it actually works fine with PNG files.

No chance of this being fixed in the future I assume?

[ph0rce]

Scratch that, it works with *some* png files & seemingly no JPG files, certainly not that I've got.

Is there anyway to tell what pixel format I need an image to be in for it to be rotatable?

[Jean-Baptiste Kempf]

Waht version of VLC?

[ph0rce]

2.2.0 Weatherwax

[Jean-Baptiste Kempf]

Please share the logs....

[ph0rce]

This what you are looking for ( I believe ):

Code: Select all

core debug: looking for video filter2 module matching "any": 58 candidates swscale debug: 450x450 (450x450) chroma: RV24 -> 450x450 (450x450) chroma: RV32 with scaling using Bicubic (good quality) core debug: using video filter2 module "swscale" core debug: Filter 'Swscale' (0000000004e93f10) appended to chain core debug: original format sz 450x450, of (0,0), vsz 450x450, 4cc RV24, sar 1:1, msk r0xff g0xff00 b0xff0000 core debug: Adding 'transform' as interactive core debug: looking for video filter2 module matching "transform": 58 candidates transform error: Unsupported pixel size 3 (chroma RV24) core debug: no video filter2 modules matched core error: Failed to create video filter2 'transform' core error: Failed to add filter 'transform'

So as you said, it is a problem with the pixel size, rather than VLC.

Do you know what pixel size is accepted by VLC for rotation, and, off topic, how on earth I can change the pixel size of an image?

[Jean-Baptiste Kempf]

transform error: Unsupported pixel size 3 (chroma RV24)

That is the reason. What format is your image?

[ph0rce]

Not sure how best to upload it, is this any good:

http://we.tl/TFXQuPr9aa

[ph0rce]

Any ideas as to what I need to be doing to my images in order to get them to rotate?

If not, please could you give me a sample image which does rotate correctly so I can try to compare the differences?

Thanks.

[Rémi Denis-Courmont]

There is nothing really wrong with the video. In this case, VLC should rotate the video after pixel format conversion, but that was never implemented.

[ph0rce]

Clearly there is something wrong, as I am still unable to rotate images using VLC!

Are you not able to tell me what pixel format(s) VLC does support ( as far as rotation goes ), or simply provide me with a working example of an image which does rotate so I can try to compare it with the ones I have?