English
2021.05.09 00:22

shanacrop filter issue

조회 수 5393 추천 수 0 댓글 2
?

단축키

Prev이전 문서

Next다음 문서

크게 작게 위로 아래로 댓글로 가기 인쇄 첨부
?

단축키

Prev이전 문서

Next다음 문서

크게 작게 위로 아래로 댓글로 가기 인쇄 첨부

Hello.

I believe cropping is not working. Here is parameters line I used:
-vf "crop=in_w-960:in_h,scale=1920:1080:flags=bicubic,shanacrop=DAR,setsar=1/1"

And the resulted video has cropped left & right bars with "crop" filter, but not cropped top & bottom with "shanacrop" during scaling down to 1080p and changed aspect ratio. So output is squashed. Please see attached screenshots.
Arguments other than "DAR" produce the same result.

 

input.png

output.png

P.S. I used to be able to crop 16:10 video to 16:9 with GUI settings in some previous version, but now cropping setting seems to do nothing. And I am also unable to find download for older versions on this site, which is a problem as well.

--
Thank you for your development.

 

Atachment
첨부 '2'
Facebook Twitter Pinterest Kakao
  • ?
    JKyle 2021.05.12 00:19

    You're doing crop ⇒ resize(scale) ⇒ crop. It's not a good work flow. Instead, do all the crops via [right click] > [Set segment/Crop] seeing the result in advance, and then do the resize.

    DAR means the display aspect ratio of the source. In resizing, Aspect: None or Padding (letterbox) is recommended. Don't do cropping there, 'cuz it will yield an unexpected result sometimes.

  • ?
    Leeroy 2021.05.19 23:49

    DAR means the display aspect ratio of the source.

    Is it? I was pretty sure that it is aspect ratio of ouput (at least in terms of ffmpeg), and it sure did act like that in previous ShanaEncoder versions. Setting output resolution of 1920x1080 and croping = DAR yilded for example 16:9 centered crop of 16:10 video without distortion.
    Even if I now set "shanacrop=16:9" or any other argument, the output is still identical. Does not seem right and very confusing.

    I was using this setting for simple reasons:

    a) it is located in main "Quick settings" menu, so seems like a logical way to do it.

    b) it requires no calculations in case you need centered picture output

    Thank you for pointing to "Set segment/Crop" menu, I was completely overlooking this submenu. It works well as a workaround.


  1. ShanaEncoder Translation 8

  2. This board is for users of the ShanaEncoder international version 7

  3. Nominal bit rate 可以做一个设置?一些视频网指定Nominal bit rate ,超过2000进行二压转码处理 0

  4. 希望提高多线程的支持 4

  5. shanacrop filter issue 2

  6. 如何把多个视频时长合并到一个文件,shana视乎只能做分割? 0

  7. videos not played on tv 0

  8. Frame bar (Feature request) 0

  9. 如何进行把两个或者多个视频进行合并成一个视频 0

  10. intel quick sync和nvidia nvenc加速编码有希望推出?毕竟效率比opencl好很多。 2

  11. ICQ and CRF 0

  12. Installation / No Access to Mirror 2

  13. Re-Encode to folder with same basename 2

  14. 希望增加文件名后缀功能Hope to add file name suffix function 2

  15. subtitle when activeted 0

  16. HEVC转码过程中,什么时候可以支持opencl加速?目前potplayer已经支持了HEVC GPU播放硬解码 1

  17. 如何设置才能取得更好的画质。preset? 0

  18. 视乎不支持srt字幕,只支持ass? 0

  19. 5.3.1.1BUG反馈02——帧率识别异常 1

  20. ShanaEncoder FFmpeg 1

  21. Translation fix in 5.3.0.1 1

  22. E-AC3 0

Board Pagination Prev 1 2 3 4 5 6 7 8 9 10 Next
/ 10