The below code enables you to split video file by size. As a result, you will get multiple files if the source file is larger than the baseline.
#!/bin/bash # Short script to split videos by filesize using ffmpeg by LukeLR if [ $# -ne 3 ]; then echo 'Illegal number of parameters. Needs 3 parameters:' echo 'Usage:' echo './split-video.sh FILE SIZELIMIT "FFMPEG_ARGS' echo echo 'Parameters:' echo ' - FILE: Name of the video file to split' echo ' - SIZELIMIT: Maximum file size of each part (in bytes)' echo ' - FFMPEG_ARGS: Additional arguments to pass to each ffmpeg-call' echo ' (video format and quality options etc.)' exit 1 fi FILE="$1" SIZELIMIT="$2" FFMPEG_ARGS="$3" # Duration of the source video DURATION=$(ffprobe -i "$FILE" -show_entries format=duration -v quiet -of default=noprint_wrappers=1:nokey=1|cut -d. -f1) # Duration that has been encoded so far CUR_DURATION=0 # Filename of the source video (without extension) BASENAME="${FILE%.*}" # Extension for the video parts #EXTENSION="${FILE##*.}" EXTENSION="mp4" # Number of the current video part i=1 # Filename of the next video part NEXTFILENAME="$BASENAME-$i.$EXTENSION" echo "Duration of source video: $DURATION" # Until the duration of all partial videos has reached the duration of the source video while [[ $CUR_DURATION -lt $DURATION ]]; do # Encode next part echo ffmpeg -i "$FILE" -ss "$CUR_DURATION" -fs "$SIZELIMIT" $FFMPEG_ARGS "$NEXTFILENAME" ffmpeg -ss "$CUR_DURATION" -i "$FILE" -fs "$SIZELIMIT" $FFMPEG_ARGS "$NEXTFILENAME" # Duration of the new part NEW_DURATION=$(ffprobe -i "$NEXTFILENAME" -show_entries format=duration -v quiet -of default=noprint_wrappers=1:nokey=1|cut -d. -f1) # Total duration encoded so far CUR_DURATION=$((CUR_DURATION + NEW_DURATION)) i=$((i + 1)) echo "Duration of $NEXTFILENAME: $NEW_DURATION" echo "Part No. $i starts at $CUR_DURATION" NEXTFILENAME="$BASENAME-$i.$EXTENSION" done