FFmpeg
Audio and video conversion and streaming.
Official documentation- ffmpeg: Unknown encoder 'libx264' (Encoder not found)ffmpeg prints Unknown encoder when the codec name is misspelled or the build lacks that library, such as libx264 or libfdk_aac. List them with -encoders.
- libx264: width not divisible by 2 / height not divisible by 2libx264 rejects odd sizes with yuv420p: width not divisible by 2 (101x101). Scale to even sizes with scale=trunc(iw/2)*2:trunc(ih/2)*2 or use scale=-2:720.