YUV420p
- -vf format=yuv420p chooses YUV 4:2:0 chroma-subsampling which is recommended for H.264 compatibility.
Influencing the quality
- Now that we have a handle on the codecs, the next question is: How do we set the quality of each stream?
The simplest method is to change the bitrate, which may or may not result in a different quality. Humans