diff options
| author | Jonas Smedegaard <dr@jones.dk> | 2017-05-19 13:00:52 +0200 |
|---|---|---|
| committer | Jonas Smedegaard <dr@jones.dk> | 2017-05-19 13:00:52 +0200 |
| commit | b86ac790479ee47813964db53ed71d04f3400b80 (patch) | |
| tree | ff153af8665e869cd6a82d11e9d19e3b690aeff0 | |
| parent | c853ebd6d6a4ca5aa3f3d359c55e9582fcc6bf76 (diff) | |
Fix sync decode+edit+encode: Generalize function videosize.
| -rwxr-xr-x | bin/decode+edit+encode | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/bin/decode+edit+encode b/bin/decode+edit+encode index 5fb0b20..fd8869f 100755 --- a/bin/decode+edit+encode +++ b/bin/decode+edit+encode @@ -24,14 +24,20 @@ HEIGHT=360 SPEED_VP8=4 +videosize() { height=$1; width_or_ratio=$2; + case $width_or_ratio in + *:*) num=${width_or_ratio%:*}; den=${width_or_ratio#*:}; width=$((height*num/den));; + *) width=$width_or_ratio;; + esac + echo_n $((height*width)) +} + +BITS=$(videosize "$HEIGHT" "$RATIO") + # * bitrates and bits in parens based on https://developer.apple.com/library/content/documentation/General/Reference/HLSAuthoringSpec/Requirements.html # + bits rounded up to include nearby modulo 16 formats # + best (i.e. high-modulo) 16:9 heights: 216 288 360 432 576 720 # + best (i.e. high-modulo) 4:3 heights: 288 312 384 480 624 816 -RATIO_NUM=${RATION_NUM:-16} -RATIO_DEN=${RATION_DEN:-9} -WIDTH=${WIDTH:-$((HEIGHT*RATIO_NUM/RATIO_DEN))} -BITS=$((WIDTH*HEIGHT)) if [ $BITS -le 110592 ]; then # 234p → 97344 VBITRATE=145000 elif [ $BITS -le 150528 ]; then # 270p → 129600 |