From 8288fa6978cefe439e0810884ca6b83542ee6e09 Mon Sep 17 00:00:00 2001
From: wm4 <wm4@nowhere>
Date: Fri, 2 Mar 2018 14:21:35 +0100
Subject: options: add a builtin low-latency profile

Well I guess it doesn't help that much.

Also add some stuff that might help to the manpage.

The fundamental problem with some "live" sources (e.g. x11grab) is
actually that the player gets behind initially, and never thinks it has
to catch up. This is also why --untimed can help.
---
 etc/builtin.conf | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'etc')

diff --git a/etc/builtin.conf b/etc/builtin.conf
index 0f53b3974c..79a5414a35 100644
--- a/etc/builtin.conf
+++ b/etc/builtin.conf
@@ -43,6 +43,16 @@ correct-downscaling=yes
 sigmoid-upscaling=yes
 deband=yes
 
+[low-latency]
+audio-buffer=0          # minimize extra audio buffer (can lead to dropouts)
+vd-lavc-threads=1       # multithreaded decoding buffers extra frames
+cache-pause=no          # do not pause on underruns
+demuxer-lavf-o-add=fflags=+nobuffer # can help for weird reasons
+demuxer-lavf-probe-info=nostreams   # avoid probing unless absolutely needed
+demuxer-lavf-analyzeduration=0.1    # if it probes, reduce it
+video-sync=audio        # DS currently requires reading ahead a frame
+interpolation=no        # requires reference frames (more buffering)
+
 # Compatibility alias (deprecated)
 [opengl-hq]
 profile=gpu-hq
-- 
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