# Parameters

I tested on ffmpeg 3.2 Hypatia.

## Container: MP4

| Parameter | YouTube recommends setting |
|---------------------|-------------------------------------------------|
| -movflags faststart | moov atom at the front of the file (Fast Start) |

## Video codec: H.264

| Parameter | YouTube recommends setting |
|---------------------|----------------------------|
| -profile:v high | High Profile |
| -bf 2 | 2 consecutive B frames |
| -g 30 | Closed GOP. GOP of half the frame rate. |
| -coder 1 | CABAC |
| -pix_fmt yuv420p | Chroma subsampling: 4:2:0 |