mirror of
https://github.com/levogevo/ffmpeg-av1-builder.git
synced 2026-01-15 16:56:18 +00:00
37 lines
1.1 KiB
Bash
Executable File
37 lines
1.1 KiB
Bash
Executable File
#!/bin/bash
|
|
|
|
# this is simply my recommended encoding method.
|
|
# do not take this as a holy grail.
|
|
|
|
encode() {
|
|
FILENAME="$1"
|
|
OUTPUT_NAME=""
|
|
# allow optional output filename
|
|
if [[ -n "$2" ]];
|
|
then
|
|
OUTPUT_NAME="$2"
|
|
else
|
|
OUTPUT_NAME="${HOME}/av1_${FILENAME}"
|
|
fi
|
|
|
|
echo ffmpeg -i \""$FILENAME"\" -map 0 \
|
|
-af '"aformat=channel_layouts=7.1|5.1|stereo|mono"' -c:a libopus $(get_bitrate_audio "$FILENAME") \
|
|
-c:s copy -c:v libsvtav1 -pix_fmt yuv420p10le -crf 20 -preset 3 -g 240 \
|
|
-svtav1-params \"tune=0:enable-overlays=1:scd=1:enable-hdr=1:fast-decode=1:enable-variance-boost=1\" \
|
|
\""$OUTPUT_NAME"\"
|
|
}
|
|
|
|
get_bitrate_audio() {
|
|
FILENAME="$1"
|
|
bitrate_cmd=""
|
|
num_streams=$(ffprobe -v error -select_streams a -show_entries stream=index -of csv=p=0 "$FILENAME" | wc -l)
|
|
for ((i = 0; i < num_streams; i++)); do
|
|
num_channels=$(ffprobe -v error -select_streams "a:$i" -show_entries stream=channels -of default=noprint_wrappers=1:nokey=1 "$FILENAME")
|
|
bitrate=$((num_channels * 64))
|
|
bitrate_cmd+="-b:a:$i ${bitrate}k "
|
|
done
|
|
echo "$bitrate_cmd"
|
|
}
|
|
|
|
encode "$@"
|