opencv保存的视频占用太大，linux下用ffmpeg将视频转为h264格式压缩大小
opencv
OpenCV: 开源计算机视觉库
项目地址：https://gitcode.com/gh_mirrors/opencv31/opencv
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opencv 读取读片并拼接成视频后，视频大小出奇的大，30多万帧占用30G
因此使用ffmpeg将视频转码为h264格式，减少至3G
ffmpeg -i input.avi -vcodec h264 -y output.avi
ffmpeg需要提前linux自己安装好
GitHub 加速计划 / opencv31 / opencv
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OpenCV: 开源计算机视觉库
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doc: update image codec configuration reference (add AVIF, fix JPEG XL) #28393
This PR updates the build configuration documentation to:
- Add AVIF to the supported format list (it was missing).
- Clarify that some codecs (AVIF, JPEG XL) do not support BUILD_* options because OpenCV does not bundle their source code.
- Update the description to include "write" capabilities for these formats.
### 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
- [ ] There is a reference to the original bug report and related work
- [ ] 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
4 天前
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