| 1 | #!/bin/bash
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| 2 |
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| 3 | renice 10 $$
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| 4 |
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| 5 | rate=$2
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| 6 | maxrate=$3
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| 7 | bufsize=`expr $maxrate / 4`
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| 8 |
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| 9 | # bufsize = maxrate * 3 / fps, according to https://trac.handbrake.fr/wiki/VBVRateControl
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| 10 | ffmpeg -i "$1" \
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| 11 | -map 0:1 -vcodec libx264 -profile:v high -level:v 4.0 \
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| 12 | -vf pullup,fps=24000/1001 \
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| 13 | -b:v "${rate}k" -maxrate "${maxrate}k" -bufsize "${bufsize}k" \
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| 14 | -dc 10 -qmin 1 -lmin '1*QP2LAMBDA' -g 300 -pass 1 -threads 8 \
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| 15 | -map 0:2 -acodec copy \
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| 16 | -passlogfile passlog$$ /tmp/makeh264$$.mkv
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| 17 | rm -f /tmp/makeh264$$.mkv
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| 18 |
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| 19 | ffmpeg -i "$1" \
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| 20 | -map 0:1 -vcodec libx264 -profile:v high -level:v 4.0 \
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| 21 | -vf pullup,fps=24000/1001 \
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| 22 | -b:v "${rate}k" -maxrate "${maxrate}k" -bufsize "${bufsize}k" \
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| 23 | -dc 10 -qmin 1 -lmin '1*QP2LAMBDA' -g 300 -pass 2 -threads 8 \
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| 24 | -map 0:2 -acodec copy \
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| 25 | -passlogfile passlog$$ "$4"
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| 26 | rm -f passlog$$-0.*
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