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Update vid compression scripts

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This commit is contained in:
Michael Campagnaro 2021-08-11 10:37:50 -04:00
parent 67844c6b02
commit 791f94bb7a
2 changed files with 15 additions and 36 deletions
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40
bin/compress-video
View File

@ -23,49 +23,21 @@ else
NORMAL=""
fi
if [[ $1 == "" ]]; then
if [[ $1 == "" || $2 == "" ]]; then
printf "${BOLD}${RED}Usage: $0 <use-gpu (1|0)> <filename> <optional output name>${NORMAL}\n"
exit 1
fi
use_gpu=$1
filename=$(basename -- "$2")
extension="${filename##*.}"
filename="${filename%.*}"
output_name="$3"
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.
# Found the following to work best with vids containing text (e.g. programming vid): 25 for CPU encoding and 27 for GPU.
use_crf=25
if [[ $use_gpu -eq 1 ]]; then
use_crf=27
fi
function encode() {
crf=$1
if [[ $output_name == "" ]]; then
output="${filename}_COMPRESSED_CRF-${crf}.$extension"
else
output="${output_name}.$extension"
fi
filename=$(basename -- "$2")
output_name="$3"
printf "\n${YELLOW}${BOLD}Encoding '$filename.$extension' | GPU: $use_gpu | CRF $crf | output: $output${NORMAL}\n"
if [[ $use_gpu -eq 1 ]]; then
# File will be slightly larger than CPU encoding, but it's much faster to transcode and doesn't max out the CPU cores.
ffmpeg -y -vsync 0 -hwaccel cuvid -c:v h264_cuvid -i "$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"
else
ffmpeg -i "$filename.$extension" -c:v libx264 -crf $crf -preset veryfast -profile:v baseline -level 3.0 -strict -2 "$output"
fi
printf "\n${GREEN}${BOLD}Done encoding '$filename.$extension' (CRF $crf) | output name '$output'${NORMAL}\n\n"
}
encode $use_crf
#printf "\n${YELLOW}${BOLD}Encoding using a range of CRF values.${NORMAL}\n"
## Bigger crf values == bigger compression.
#for crf in {25..28}
#do
# encode $crf
#done
compress-video-with-crf $use_gpu $use_crf "$filename" "$output_name"

11
bin/compress-video-with-crf
View File

@ -23,7 +23,7 @@ else
NORMAL=""
fi
if [[ $1 == "" ]]; then
if [[ $1 == "" || $2 == "" ]]; then
printf "${BOLD}${RED}Usage: $0 <use-gpu (1|0)> <crf value> <filename> <optional output name>\n\nIf you want to encode a range of CRF values then use -1 as the crf value.${NORMAL}\n"
exit 1
fi
@ -49,7 +49,14 @@ function encode() {
if [[ $use_gpu -eq 1 ]]; then
# File will be slightly larger than CPU encoding, but it's much faster to transcode and doesn't max out the CPU cores.
ffmpeg -y -vsync 0 -hwaccel cuvid -c:v h264_cuvid -i "$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"
#ffmpeg version N-103152-gef54590f83-20210806
# This version of ffmpeg results in larger files than version 4.3.1 command below.
#ffmpeg -y -stats -loglevel level+error -vsync 0 -hwaccel_output_format cuda -c:v h264_cuvid -i "$filename.$extension" -c:a copy -c:v h264_nvenc -profile:v high -rc:v vbr -cq:v $crf -b:v 5M -maxrate 5M -max_muxing_queue_size 9999 "$output"
#ffmpeg version 4.3.1-2020-11-08
ffmpeg -y -stats -loglevel level+error -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"
else
ffmpeg -i "$filename.$extension" -c:v libx264 -crf $crf -preset veryfast -profile:v baseline -level 3.0 -strict -2 "$output"
fi