[Savannah-cvs] [781] obs update

[iank]

Revision: 781
          
http://svn.savannah.gnu.org/viewvc/?view=rev&root=administration&revision=781
Author:   iank
Date:     2024-04-15 11:01:43 -0400 (Mon, 15 Apr 2024)
Log Message:
-----------
obs update

Modified Paths:
--------------
    trunk/sviki/fsf/tools/OBS.mdwn

Modified: trunk/sviki/fsf/tools/OBS.mdwn
===================================================================
--- trunk/sviki/fsf/tools/OBS.mdwn      2024-04-15 15:01:37 UTC (rev 780)
+++ trunk/sviki/fsf/tools/OBS.mdwn      2024-04-15 15:01:43 UTC (rev 781)
@@ -56,8 +56,9 @@
 * Rescale Output: greyed out, not settable.
 * Show all codecs (even if potentially incompatible): checked
 * Video Encoder: `libvpx`
-* Video Encoder Settings (if any): `quality=realtime cpu-used=5 threads=2 
error-resilient=1`
-** For vp9, which we will test in LP2024: `quality=realtime cpu-used=5 
threads=4 row-mt=1 tile-columns=2 frame-parallel=1` WARNING: trailing spaces 
cause silent errors. Anytime you alter these settings, watch the output of: 
`obs | grep -i failed`
+* Video Encoder Settings (if any): `quality=realtime threads=2 
error-resilient=1`
+** For vp9, which we will test in LP2024: `quality=realtime threads=4 row-mt=1 
tile-columns=2 frame-parallel=1` WARNING: trailing spaces cause silent errors. 
Anytime you alter these settings, watch the output of: `obs | grep -i failed`
+** perhaps future av1: `usage=realtime cpu-used=7 threads=4 tiles=2x2 row-mt=1`
 ** background notes: man ffmpeg-codecs says -g is group of picture size, but 
online sources call it the "keyframe interval."  In vp9, at roughly > 2 seconds 
worth of frames, it starts to increase latency at a corresponding rate. If cpu 
struggles, adjust cpu-used upward, max is 8 which uses the lowest cpu.
 * Audio Bitrate: `96 Kbps`
 * Audio Track: check mark on 1.