Video writing is too slow in OpenCV

cudawarped · December 18, 2023, 10:25am

You need to install Nvidia Video Codec SDK. On windows,

Optional - To decode video on the GPU with the Nvidia Video Codec SDK:

Register and download the latest version of the Complete Video Codec SDK xx.x Package.

Extract and copy the contents of Interface and Lib to the include and lib directories inside your CUDA installation.

from

If you want your 4k files in container formats, mp4 etc. then you will have to wait until OpenCV 4.9.0 is released as opencv_videoio_ffmpeg480_64.dll hasn’t been updated yet to include

github.com/opencv/opencv_contrib

`cudacodec::VideoWriter` add container output

opencv:4.x ← cudawarped:videoio_ffmpeg_add_stream_encapsulation

opened 01:37PM - 05 Oct 23 UTC

cudawarped

+134 -67

Where supported, allows the raw encoded video output from Nvidia's hardware deco…der to be encapsulated in a suitable (mp4/mkv/etc.) container. Dependant on https://github.com/opencv/opencv/pull/24363. Fixes https://github.com/opencv/opencv_contrib/issues/3556 ### Pull Request Readiness Checklist See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request - [x] I agree to contribute to the project under Apache 2 License. - [x] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV - [x] The PR is proposed to the proper branch - [x] There is a reference to the original bug report and related work - [x] There is accuracy test, performance test and test data in opencv_extra repository, if applicable Patch to opencv_extra has the same branch name. - [x] The feature is well documented and sample code can be built with the project CMake

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Video writing is too slow in OpenCV

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