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fraunhoferhhi / vvenc

VVenC, the Fraunhofer Versatile Video Encoder
https://www.hhi.fraunhofer.de/en/departments/vca/technologies-and-solutions/h266-vvc.html
BSD 3-Clause Clear License
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Encoding Problem With 8K Video #152

Closed wpss929 closed 2 years ago

wpss929 commented 2 years ago

I met some problems when I tried to use VVenC for a 8K 420 YUV file encoding.

Firstly I followed readme.md to build vvencapp.exe under Visual Studio 2019, then I tried to use it for encoding under command

vencapp -i scene.yuv -s 7680x4320 —fps 24 -f 12 -o vvc.bin

scene.yuv is from a 8K 24 fps yuv file, and I cut it to 12 frames for quick test on my old computer :(

Then I use VVdeC to decode bin file under the command vvdecapp -b vvc.bin -o rec_vvc.yuv

However when It finished, I found reconstructed yuv file is obviously bigger than original file(1.11GB vs 569MB), and ffplay showed that the yuv file is made of wrong pictures(green and warping) 5277C3BF-6766-4DAB-BC45-3C159803FBE4

Then I tried vvFFenc and it showed same problem ( bigger file and wrong yuv ) so I wonder why this happened and how to solve it?

adamjw24 commented 2 years ago

VVenC always uses 10bit as internal bit depth.

Please have a look at: https://github.com/fraunhoferhhi/vvdec/issues/4