https://community.nxp.com/t5/i-MX-Graphics/How-do-I-disable-DCT-transform-on-i-MX8M-Plus-VPU/m-p/1365664#M220 <P>from API, don't have control DCT code or something, and I checked the spec, I don't find any DCT or transform on SW or HW with HEVC, only for VP9 or JPEG</P> Wed, 03 Nov 2021 09:39:18 GMT joanxie 2021-11-03T09:39:18Z https://community.nxp.com/t5/i-MX-Graphics/How-do-I-disable-DCT-transform-on-i-MX8M-Plus-VPU/m-p/1365201#M217 <P>I want to be able to achieve completely lossless compression. According to the link below, I need to turn off quantization and DCT transform. I can turn of quantization by setting the QP value; however, I do not know how to turn off the DCT transform.</P><P>&nbsp;</P><P><A href="https://x265.readthedocs.io/en/stable/lossless.html" target="_blank">Lossless — x265 documentation</A></P> Tue, 02 Nov 2021 14:18:44 GMT https://community.nxp.com/t5/i-MX-Graphics/How-do-I-disable-DCT-transform-on-i-MX8M-Plus-VPU/m-p/1365201#M217 gawarren 2021-11-02T14:18:44Z https://community.nxp.com/t5/i-MX-Graphics/How-do-I-disable-DCT-transform-on-i-MX8M-Plus-VPU/m-p/1365657#M219 <P>I have already replied to you in your original case, pls refer to that</P> Wed, 03 Nov 2021 09:29:54 GMT https://community.nxp.com/t5/i-MX-Graphics/How-do-I-disable-DCT-transform-on-i-MX8M-Plus-VPU/m-p/1365657#M219 joanxie 2021-11-03T09:29:54Z https://community.nxp.com/t5/i-MX-Graphics/How-do-I-disable-DCT-transform-on-i-MX8M-Plus-VPU/m-p/1365664#M220 <P>from API, don't have control DCT code or something, and I checked the spec, I don't find any DCT or transform on SW or HW with HEVC, only for VP9 or JPEG</P> Wed, 03 Nov 2021 09:39:18 GMT https://community.nxp.com/t5/i-MX-Graphics/How-do-I-disable-DCT-transform-on-i-MX8M-Plus-VPU/m-p/1365664#M220 joanxie 2021-11-03T09:39:18Z