English
2021.05.09 00:22

shanacrop filter issue

조회 수 5389 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.


List of Articles
번호 분류 제목 글쓴이 날짜 조회 수 추천 수
공지 ShanaEncoder Translation 8 Rina 2021.04.28 45050 0
공지 This board is for users of the ShanaEncoder international version 7 Rina 2019.07.24 49388 1
193 Simplified Chinese 预览265编码视频不能硬解码并且占用CPU只有1/4个核心,potplayer是可以启用硬解码的 3 file 小樱 2017.01.11 25530 0
192 Simplified Chinese 预测时间不准确 2 file 小樱 2017.08.04 25178 0
191 Simplified Chinese 通过MKV封装格式直接转换,发现生成后的文件没有带字幕 1 小樱 2015.02.26 22612 0
190 Simplified Chinese 这个视频转码的时候GUI会显示出错。反复跳动 小樱 2015.03.03 23003 0
189 Simplified Chinese 转码多音轨的视频,音轨名称都变成一样了 4 file cswcsw 2021.08.02 16993 1
188 Simplified Chinese 请问,什么时候可以支持HEVC 10Bit ? 1 adidi 2016.06.03 23936 0
187 Simplified Chinese 请问编码错误“Expected number for async but found:-pix_fmt”是什么意思 1 file broacheer 2023.02.24 4344 0
186 Simplified Chinese 询问下hevc nvenc压制时预设的问题 3 Old_Ripper 2020.08.16 30846 1
185 Simplified Chinese 话说10bit不支持GPU转码,是硬件的不支持? 1 小樱 2015.03.02 23820 0
184 Simplified Chinese 设置复制视频音频流的时候,应该能直接拼接合并比较合理吧,,现在的版本还要复制输出一份临时文件 2 小樱 2020.02.04 25697 0
183 Simplified Chinese 设置了intel硬件解码器QSV没有效果,并没有进行硬件解码 file rtere 2023.09.27 4526 0
182 Simplified Chinese 视乎使用GPU压制,视频开头一段画面都是非常模糊的。 小樱 2015.03.07 23542 0
181 Simplified Chinese 视乎不支持srt字幕,只支持ass? 小樱 2015.03.07 22455 0
180 Simplified Chinese 能增加个BitrateViewer这种比特率查看小工具吗,菜单上右键呼出查看 小樱 2020.02.03 23783 0
179 Simplified Chinese 能否设置10BIT编码? 1 小樱 2015.02.19 23611 0
178 Simplified Chinese 缺少scale_cuda滤镜 sz 2021.08.30 17148 0
177 Simplified Chinese 硬件解码会不会影响压缩之后视频质量 1 file 七落 2022.04.27 12676 0
176 Simplified Chinese 没事帮忙解除了贵站域名的风险拦截 小樱 2015.01.13 23287 0
175 Simplified Chinese 求助,为什么突然视频转换的时间暴增? 3 zhou 2022.03.04 11302 0
174 Simplified Chinese 求助Device setup failed for decoder on input stream #0:0 : Unknown error occurred? 3 成成 2020.03.06 19901 0
Board Pagination Prev 1 2 3 4 5 6 7 8 9 10 Next
/ 10