72 lines
2.0 KiB
Bash
72 lines
2.0 KiB
Bash
#!/usr/bin/env bash
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if which tput >/dev/null 2>&1; then
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ncolors=$(tput colors)
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fi
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if [ -t 1 ] && [ -n "$ncolors" ] && [ "$ncolors" -ge 8 ]; then
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RED="$(tput setaf 1)"
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GREEN="$(tput setaf 2)"
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YELLOW="$(tput setaf 3)"
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BLUE="$(tput setaf 4)"
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MAGENTA="$(tput setaf 5)"
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CYAN="$(tput setaf 6)"
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BOLD="$(tput bold)"
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NORMAL="$(tput sgr0)"
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else
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RED=""
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GREEN=""
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YELLOW=""
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BLUE=""
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MAGENTA=""
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CYAN=""
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BOLD=""
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NORMAL=""
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fi
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if [[ $1 == "" ]]; then
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printf "${BOLD}${RED}Usage: $0 <use-gpu (1|0)> <filename> <optional output name>${NORMAL}\n"
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exit 1
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fi
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use_gpu=$1
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filename=$(basename -- "$2")
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extension="${filename##*.}"
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filename="${filename%.*}"
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output_name="$3"
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use_crf=25 # Found the following to work best with vids containing text (e.g. programming vid): 25 for CPU encoding and 27 for GPU.
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if [[ $use_gpu -eq 1 ]]; then
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use_crf=27
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fi
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function encode() {
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crf=$1
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if [[ $output_name == "" ]]; then
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output="${filename}_COMPRESSED_CRF-${crf}.$extension"
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else
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output="${output_name}.$extension"
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fi
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printf "\n${YELLOW}${BOLD}Encoding '$filename.$extension' | GPU: $use_gpu | CRF $crf | output: $output${NORMAL}\n"
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if [[ $use_gpu -eq 1 ]]; then
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# File will be slightly larger than CPU encoding, but it's much faster to transcode and doesn't max out the CPU cores.
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ffmpeg -y -vsync 0 -hwaccel cuvid -c:v h264_cuvid -i "$filename.$extension" -c:a copy -c:v h264_nvenc -profile:v high -rc:v vbr_hq -cq:v $crf -b:v 5M -maxrate 5M -max_muxing_queue_size 9999 "$output"
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else
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ffmpeg -i "$filename.$extension" -c:v libx264 -crf $crf -preset veryfast -profile:v baseline -level 3.0 -strict -2 "$output"
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fi
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printf "\n${GREEN}${BOLD}Done encoding '$filename.$extension' (CRF $crf) | output name '$output'${NORMAL}\n\n"
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}
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encode $use_crf
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#printf "\n${YELLOW}${BOLD}Encoding using a range of CRF values.${NORMAL}\n"
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## Bigger crf values == bigger compression.
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#for crf in {25..28}
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#do
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# encode $crf
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#done
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