Youtube Gaming Live

Question

Can anyone shed some light on the Youtube Gaming streaming streaming stack to achieve this insane frame rate? (60 frames per second)

I like the way HLS, but better. Receives chunks of binary data every ~ 3 seconds, one chunk ~ 200 kb.

What type of source do you think?

PS: I implemented streaming over HTTP using https://github.com/phoboslab/jsmpeg - sending binary data via web ports to a browser. Although it runs a cross-vendor and reaches ~ 20 frames per second, it does not come anywhere and has no sound.

Answer 1

YouTube , /.

, HLS, DASH (. HTTP ). , video/vnd.mpeg.dash.mpd application/dash+xml MIME.

.

60fps MPEG-DASH (H.264/AVC MP4 AAC M4A), WebM DASH (VP9 Opus WebM). WebM , MPEG .

youtube-dl --list-formats :

format code  extension  resolution note
249          webm       audio only DASH audio , opus @ 50k
250          webm       audio only DASH audio , opus @ 70k
251          webm       audio only DASH audio , opus @160k
171          webm       audio only DASH audio  113k , audio@128k (44100Hz), 2.27MiB
140          m4a        audio only DASH audio  129k , m4a_dash container, aac  @128k (44100Hz), 2.81MiB
141          m4a        audio only DASH audio  255k , m4a_dash container, aac  @256k (44100Hz), 5.59MiB
247          webm       720p       DASH video , video only
136          mp4        720p       DASH video , video only
248          webm       1080p      DASH video , video only
137          mp4        1080p      DASH video , video only
160          mp4        256x144    DASH video  110k , 15fps, video only, 2.28MiB
278          webm       256x144    DASH video  190k , webm container, VP9, 15fps, video only, 2.11MiB
242          webm       426x240    DASH video  227k , 30fps, video only, 3.58MiB
133          mp4        426x240    DASH video  250k , 30fps, video only, 5.18MiB
243          webm       640x360    DASH video  403k , 30fps, video only, 6.69MiB
134          mp4        640x360    DASH video  617k , 30fps, video only, 8.97MiB
244          webm       854x480    DASH video  864k , 30fps, video only, 12.89MiB
135          mp4        854x480    DASH video 1115k , 30fps, video only, 17.25MiB
302          webm       1280x720   DASH video 2933k , VP9, 60fps, video only, 43.81MiB
298          mp4        1280x720   DASH video 3373k , h264, 60fps, video only, 54.42MiB
303          webm       1920x1080  DASH video 5055k , VP9, 60fps, video only, 80.96MiB
299          mp4        1920x1080  DASH video 5584k , h264, 60fps, video only, 96.97MiB
13           3gp        unknown    
17           3gp        176x144    
36           3gp        320x240    
5            flv        400x240    
43           webm       640x360    
18           mp4        640x360    
22           mp4        1280x720   (best)