From d62462fa43e10c5bccdc0f25c4ed5a26e2bfa2c8 Mon Sep 17 00:00:00 2001
From: Jonas Smedegaard <dr@jones.dk>
Date: Thu, 13 Apr 2017 10:15:12 +0200
Subject: List audio before video.

---
 bin/decode+edit+encode | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100755 bin/decode+edit+encode

(limited to 'bin/decode+edit+encode')

diff --git a/bin/decode+edit+encode b/bin/decode+edit+encode
new file mode 100755
index 0000000..25ea997
--- /dev/null
+++ b/bin/decode+edit+encode
@@ -0,0 +1,28 @@
+#!/bin/sh
+
+set -e
+
+ITERATIONS=${1-1} # no looping by default
+
+HEIGHT=360
+BITRATE=500000
+
+MOVIE=../src/omni/show0/earth.mp4
+LOGO=../../content/icon_small.png
+
+TMPMOVIE=../tmp/omni/show0/earth.webm
+
+mkdir -p $(dirname "$TMPMOVIE")
+
+# based on http://www.webmproject.org/docs/encoder-parameters/#real-time-cbr-encoding-and-streaming
+# + loop-in-filter trick based on http://video.stackexchange.com/a/16933
+ffmpeg -threads auto -y -re \
+ -f lavfi -i "movie=filename=$MOVIE:loop=$ITERATIONS, setpts=N/(FRAME_RATE*TB), scale=-1:$HEIGHT" \
+ -i "$LOGO" -filter_complex 'overlay=main_w-overlay_w-20:main_h-overlay_h-20' \
+ -an \
+ -codec:v vp8 -quality realtime -deadline realtime -cpu-used 4 \
+ -b:v "$BITRATE" -minrate "$BITRATE" -maxrate "$BITRATE" \
+ -undershoot-pct 95 -bufsize $((6000*BITRATE/1000)) -rc_init_occupancy $((4000*BITRATE/1000)) \
+ -max-intra-rate 0 \
+ -qmin 4 -qmax 56 \
+ -f webm "$TMPMOVIE"
-- 
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