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authorJonas Smedegaard <dr@jones.dk>2017-04-13 10:15:12 +0200
committerJonas Smedegaard <dr@jones.dk>2017-04-13 10:53:30 +0200
commitd62462fa43e10c5bccdc0f25c4ed5a26e2bfa2c8 (patch)
treee191e453329300be1096c5839e2a4c2b3e9110a7 /bin/decode+edit+encode
parent7fda1a3bd2a78dab92dfb6fdef9094b14aa16243 (diff)
List audio before video.
Diffstat (limited to 'bin/decode+edit+encode')
-rwxr-xr-xbin/decode+edit+encode28
1 files changed, 28 insertions, 0 deletions
diff --git a/bin/decode+edit+encode b/bin/decode+edit+encode
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+++ b/bin/decode+edit+encode
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+#!/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"