blob: 25ea997750bdc58d05e9a39a7f453d739f90cfff (
plain)
- #!/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"
|
