Have a look at FFmpeg's libswscale library, which is licensed under the terms of the LGPL.
I'm not sure if libswscale will compile with MSVC (it probably won't), but you can always use MSYS/MingW to compile libswscale to a shared library and use that in your MSVC project.
libyuv is an open source project that includes YUV scaling and conversion functionality.
Scale YUV to prepare content for compression, with point, bilinear or box filter. Convert to YUV from webcam formats. Convert from YUV to formats for rendering/effects. Rotate by 90/180/270 degrees to adjust for mobile devices in portrait mode.
Optimized for SSE2/SSSE3/AVX2 on x86/x64. Optimized for Neon on Arm. Optimized for DSP R2 on Mips.
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看一下 FFmpeg 的 libswscale 库，它根据以下条款获得许可LGPL。
我不确定 libswscale 是否可以使用 MSVC 进行编译（可能不会），但您始终可以使用 MSYS/MingW 将 libswscale 编译为共享库并在 MSVC 项目中使用它。
Have a look at FFmpeg's libswscale library, which is licensed under the terms of the LGPL.
I'm not sure if libswscale will compile with MSVC (it probably won't), but you can always use MSYS/MingW to compile libswscale to a shared library and use that in your MSVC project.
libyuv 是一个开源项目，包含 YUV 缩放和转换功能。
使用点、双线性或盒式滤波器缩放 YUV 以准备压缩内容。
从网络摄像头格式转换为 YUV。
从 YUV 转换为渲染/效果格式。
旋转 90/180/270 度以适应移动设备的纵向模式。
针对 x86/x64 上的 SSE2/SSSE3/AVX2 进行了优化。
针对 Arm 上的 Neon 进行了优化。
针对 Mips 上的 DSP R2 进行了优化。
libyuv is an open source project that includes YUV scaling and conversion functionality.
Scale YUV to prepare content for compression, with point, bilinear or box filter.
Convert to YUV from webcam formats.
Convert from YUV to formats for rendering/effects.
Rotate by 90/180/270 degrees to adjust for mobile devices in portrait mode.
Optimized for SSE2/SSSE3/AVX2 on x86/x64.
Optimized for Neon on Arm.
Optimized for DSP R2 on Mips.