idea

Encoder profile is a set of codec toolsets indicating the kind of compression techniques used in bitstream.

• Baseline: no B-frame, no CABAC. Simple and low latency
• Main: adds B-frame and CABAC
• High: adds 8x8 transforms, custom scaling matrices.
• High 10/High 4:2:2/High 4:4:4 - higher depth/chroma sampling.
• Main 10 (10 bits)

Level: indicates res x frame rate x bitrate x decoded picture buffer size (DPB) and number of reference frames x macroblocks

• Level 3.1 = 720p30
• 4.0 = 1080p30
• 4.1 = 1080p60