YouTube - jak kodować

Dla ułatwienia, by nie szukać w Internecie,  zamieszczam informacje o kodowaniu YouTube. Zazwyczaj używam kodowania, które daje przyzwoite czasy obróbki materiału i nie wymaga super upload'u:



Container: .mp4
  • No Edit Lists (or you may lose AV sync)
  • moov atom at the front of the file (Fast Start)

Audio codec: AAC-LC

  • Channels: Stereo or Stereo + 5.1
  • Sample rate 96khz or 48khz

Video codec: H.264

  • Progressive scan (no interlacing)
  • High Profile
  • 2 consecutive B frames
  • Closed GOP. GOP of half the frame rate.
  • CABAC
  • Variable bitrate. No bitrate limit required, though we offer recommended bit rates below for reference
  • Chroma subsampling: 4:2:0

Frame rate

  • Content should be encoded and uploaded in the same frame rate it was recorded.
  • Common frame rates include: 24, 25, 30, 48, 50, 60 frames per second (other frame rates are also acceptable).
  • Interlaced content should be deinterlaced before uploading. For example, 1080i60 content should be deinterlaced to 1080p30, going from 60 interlaced fields per second to 30 progressive frames per second.

  • 2160p: 3840x2160
  • 1440p: 2560x1440
  • 1080p: 1920x1080
  • 720p: 1280x720
  • 480p: 854x480
  • 360p: 640x360
  • 240p: 426x240


Bitrate

Standard quality uploads

TypeVideo BitrateMono Audio BitrateStereo Audio Bitrate5.1 Audio Bitrate
2160p (4k)35-45 Mbps128 kbps384 kbps512 kbps
1440p (2k)10 Mbps128 kbps384 kbps512 kbps
1080p8,000 kbps128 kbps384 kbps512 kbps
720p5,000 kbps128 kbps384 kbps512 kbps
480p2,500 kbps64 kbps128 kbps196 kbps
360p1,000 kbps64 kbps128 kbps196 kbps


High quality uploads for creators with enterprise quality internet connections

TypeVideo BitrateMono Audio BitrateStereo Audio Bitrate5.1 Audio Bitrate
1080p50,000 kbps128 kbps384 kbps512 kbps
720p30,000 kbps128 kbps384 kbps512 kbps
480p15,000 kbps128 kbps384 kbps512 kbps
360p5,000 kbps128 kbps384 kbps512 kbps



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Update: 2015.04.25
Create: 2015.04.25

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