From 6c2295394ece45edd5b3012a98f8aed62c66d7a5 Mon Sep 17 00:00:00 2001
From: Ben Sima <ben@bsima.me>
Date: Wed, 27 Jun 2018 08:04:54 -0700
Subject: WIP scripts

---
 twitch | 46 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100755 twitch

(limited to 'twitch')

diff --git a/twitch b/twitch
new file mode 100755
index 0000000..b84af77
--- /dev/null
+++ b/twitch
@@ -0,0 +1,46 @@
+#! /usr/bin/env nix-shell
+#! nix-shell -i bash -p ffmpeg
+#
+# https://wiki.archlinux.org/index.php/Streaming_to_twitch.tv
+
+FILE=$(date +%Y.%m.%d..%H.%M)
+
+INRES="1920x1080"
+OUTRES="1920x1080"
+FPS="15"
+GOP="30"
+GOPMIN="15"
+THREADS="2"
+CBR="1000k"
+QUALITY="ultrafast"
+AUDIO_RATE="44100"
+KEY=$(pass internet/twitch.tv-key)
+SERVER="live-lax"
+
+ffmpeg \
+  -f alsa -i default \
+  -f x11grab -s "$INRES" -r "$FPS" -i :0.0 \
+  -f video4linux2 -i /dev/video0 \
+  -filter_complex '[2:v]scale=480:-1[cam];[1:v][cam]overlay=W-w-10:H-h-10' \
+  -f flv "rtmp://$SERVER.twitch.tv/app/$KEY"
+  -c:v libx264 \
+  -preset veryfast \
+  -maxrate 1984k \
+  -bufsize 3968k \
+  -g "$GOP" \
+  -keyint_min "$GOPMIN" \
+  -b:v "$CBR" \
+  -minrate "$CBR" \
+  -maxrate "$CBR" \
+  -pix_fmt yuv420p \
+  -s "$OUTRES" \
+  -preset "$QUALITY" \
+  -tune film \
+  -crf:v 18 \
+  -c:a libmp3lame \
+  -b:a 128k \
+  -threads "$THREADS" \
+  -strict normal \
+  -bufsize "$CBR" \
+  -ar "$AUDIO_RATE" \
+  -ac 2 \
-- 
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